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Home >> Chevrolet >> 2010 >> Corvette Base, 2D Convertible, Automatic >> Repair and Diagnosis >> Electrical >> Component Locations >> Component Locations - Electrical Center Identification Views >> Electrical Center Identification Views

Electrical Center Identification Views

Fig 1: Fuse Block - Underhood Label
GM2367195Courtesy of GENERAL MOTORS CORP.
FUSE BLOCK - UNDERHOOD FUSE AND RELAY IDENTIFICATION LEGEND

No. Fuse And Relay Description Rating Circuits
1 TCM/TRANS 10A Automatic Transmission and Transmission Control Module (TCM) (MYC)
2 HORN/ALT SENSE Fuse 15A Generator and HORN Relay 34
3 ABS/MRRTD Fuse 10A Electronic Brake Control Module (EBCM) and Electronic Suspension Control (ESC) Module
4 WIPER Fuse 30A WIPER ON/OFF Relay 45 and WIPER RUN/ACC Relay 42
5 STOP/B/U LAMPS Fuse 15A Body Control Module (BCM) STOP LAMP Relay
6 02 SEN Fuse 15A Heated Oxygen Sensors (HO2S)
7 BATT5 Fuse 30A Body Control Module (BCM) TELE SW/MEM SEAT MOD, DRIV DR SW, IGN SW/INTR SENS, ONSTAR, and TPA Fuses
8 PK LAMPS Fuse 10A PARK LAMP Relay 37
9 PT INPUT/ETC Fuse 10A Engine Control Module (ECM)
10 MAN TRAN SOL Fuse 10A Skip Shift Solenoid (M/T with JL5)
11 ABS Fuse 25A Electronic Brake Control Module (EBCM)
12 ODD INJ Fuse 20A Odd Fuel Injectors and Ignition Coils
13 MRRTD Fuse 25A Evaporative Emission (EVAP) Canister Vent Solenoid Valve and Electronic Suspension Control (ESC) Module
14 EMISSION Fuse 15A Evaporative Emission (EVAP) Canister Purge Solenoid Valve
15 A/C COMP Fuse 10A A/C COMP Relay 35
16 EVEN INJ Fuse 20A Even Fuel Injectors and Ignition Coils
17 W/S WASH Fuse 15A W/S WASH Relay 36
18 HDLP WASH Fuse 20A HDLP WASH Relay 46
19 RT LO BM Fuse 20A Headlamp Ballast - Right
20 FUEL PUMP Fuse 20A FUEL PUMP Relay 55
21 LT LO BM Fuse 20A Headlamp Ballast - Left
22 FRT FOG LP Fuse 15A FOG LP Relay 38
23 RT HI BM Fuse 10A Headlamp - Right High Beam
24 LT HI BM Fuse 10A Headlamp - Left High Beam
25 COOLFAN 60A Fan Control Module
26 BATT3 Fuse 60A Body Control Module (BCM) A.C. LATCH/PK BRK B, BTSI SOL/COL LOCK, CLUSTER, DOOR LOCKS, HVAC/PWR SND, INTERIOR LIGHTS, PWR FLDG MIR-EXT/RET, RADIO/ANT/VICS, REAR FOG/ALDL TOP SW Fuses, and RUN/CRANK Relay 2
27 ABS Fuse 40A Electronic Brake Control Module (EBCM)
28 HVAC Fuse 40A Blower Motor Control Module
29 BATT2 Fuse 30A Folding Top Control Module and REAR DEFOG Relay 4
30 STARTER Fuse 40A CRANK Relay 43
31 AMP Fuse 30A Audio Amplifier
32 INCLR PUMP/ELSD Fuse 30A INCLR PUMP/ELSD RELAY, Charge Air Cooler (CAC) Coolant Pump
33 BATT1 Fuse 60A I/P Fuse Block DOOR CONTROLS and POWER SEATS Circuit Breakers, HEATED SEAT LH, HEATED SEAT RH, and POWER LUMBAR LH/RH Fuses
34 HORN Relay - Horns
35 A/C COMP Relay - A/C Compressor Clutch
36 W/S WASH Relay - Windshield Washer Fluid Pump
37 PARK/POS LAMP Relay - Park Lamp - Left Front, Park Lamp Right Front
38 FRT FOG LP Relay - Fog Lamp - Left Front and Fog Lamp - Right Front
39 HIGH BEAM Relay - Headlamp - Left High Beam, Headlamp - Right High Beam
40 REAR DEFOG Relay - Rear Window Defogger
41 WIPER HI/LO Wiper Relay - Wiper/Washer System
42 WIPER RUN/ACC Relay - Wiper/Washer System
43 CRANK Relay - Starter Motor
44 POWERTRAIN IGN1 Relay - EMISSION, EVEN INJ, ETC, FUEL, O2, and ODD INJ Fuses and A/C COMP Relay 35
45 WIPER ON/OFF Relay - Wiper/Washer System
46 HDLP WASH Relay - Headlamp Washer Fluid Pump
47 LOW BEAM Relay - Headlamp - Left Low Beam, Headlamp - Right Low Beam
48 SPARE FUSE 10A Spare Fuse
49 SPARE FUSE 15A Spare Fuse
50 SPARE FUSE 20A Spare Fuse
51 SPARE FUSE 25A Spare Fuse
52 SPARE FUSE 30A Spare Fuse
53 EMPTY - Not Used
54 FUSE PULLER - Fuse Puller
55 FUEL PUMP Relay - Fuel Pump and Sender Assembly
56 ECM/TCM/EASY KEY 15A Engine Control Module (ECM), Remote Control Door Lock Receiver (RCDLR), and Transmission Control Module (TCM) (MYC)
F5 DIODE 2 - Wiper/Washer System
F16 WIPER Diode - Wiper/Washer System
F19 DIODE 1 - Wiper/Washer System
Fig 2: Fuse Block - Underhood Top View
GM2367194Courtesy of GENERAL MOTORS CORP.
Fig 3: Fuse Block - Underhood Bottom View
GM2035535Courtesy of GENERAL MOTORS CORP.
Fig 4: Fuse Block - Underhood X1
GM647951Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X1

Pin Wire Circuit Function
A1 - - Not Used
A2 0.35 PU 333 Brake Fluid Level Sensor Signal
A3-A9 - - Not Used
A10 0.8 D-GN 29 Horn Control
A11 - - Not Used
A12 0.35 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage
0.35 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage (T90)
B1-B8 - - Not Used
B9 0.35 D-BU/WH 1315 Right Front Turn Signal Lamp Supply Voltage
0.35 D-BU/WH 1315 Right Front Turn Signal Lamp Supply Voltage (T90)
B10-B12 - - Not Used
C1 - - Not Used
C2 3.0 RD/BK 542 Battery Positive Voltage (LS9)
C3 - - Not Used
C4 0.5 D-GN/WH 711 Left Headlamp High Beam Supply Voltage
C5 - - Not Used
C6-C7 - - Not Available
C8-C9 - - Not Used
C10 0.5 BK 1250 Ground
C11-C12 - - Not Used
D1 - - Not Used
D2 0.35 OG 1732 Courtesy Lamps Supply Voltage
D3 - - Not Used
D4 0.5 L-GN/BK 311 Right Headlamp High Beam Supply Voltage
D5 - - Not Used
D6-D7 - - Not Available
D8-D9 - - Not Used
D10 0.5 PU 34 Fog Lamps Supply Voltage
0.5 PU 34 Fog Lamps Supply Voltage
D11-D12 - - Not Used
E1 - - Not Used
E2 2 YE 712 Left Headlamp Low Beam Supply Voltage
E3-E4 - - Not Used
E5 0.35 PK/BK 109 Hood Ajar Switch Signal (UA2)
E6-E12 - - Not Used
F1 - - Not Used
F2 2 TN/WH 312 Right Headlamp Low Beam Supply Voltage
F3 0.5 OG 228 Windshield Washer Pump Control
F4 0.35 TN/WH 99 Windshield Washer Fluid Level Signal
F5 0.35 YE 61 Low Reference
F6 - - Not Used
F7 0.35 L-GN/BK 735 Ambient Air Temperature Sensor Signal
F8-F10 - - Not Used
F11 0.5 BN 9 Park Lamp Supply Voltage
F12 1 PU 1197 Headlamp Washer Pump Control (CE4)
Connector Part Information 
  • OEM: 15319896
  • Service: 15319896
  • Description: 68-Way F Metri-Pack 280 Series, Flexlock (BK)
Terminal Part Information 
  • Pins: C4, C10, D4, F3, F11
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A10, A12, B9, D2, E5, F4, F5, F7, F9, F12
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A10, F12 - C/A
  • Core/Insulation Crimp: Pins A12, B9, D2, E5, F4, F5, F7, F9 - E/C
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: D10, E2, F2
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: Pins D10 - See Terminal Repair Kit
  • Core/Insulation Crimp: Pins E2, F2 - A/B
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Fig 5: Fuse Block - Underhood X2
GM684889Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X2

Pin Wire Circuit Function
A1 - - Not Used
A2 0.5 RD/WH 2540 Battery Positive Voltage 5-Volt Reference (without LS9)
A3-A4 - - Not Used
A5 0.35 D-GN/WH 459 A/C Compressor Clutch Relay Control
A6 2 GY 120 Fuel Pump Supply Voltage 5-Volt Reference (without LS9)
A7-A10 - - Not Used
A11 0.5 PK 1439 Ignition 1 Voltage
A12 - - Not Used
B1 - - Not Used
B2 0.35 D-GN/WH 817 Vehicle Speed Signal
B3 - - Not Used
B4 0.5 PK 439 Ignition 1 Voltage
B5 0.5 D-GN 59 A/C Compressor Clutch Supply Voltage
B6 0.35 D-GN/WH 465 Fuel Pump Relay Control 5-Volt Reference (without LS9)
B7-B8 - - Not Used
B9 0.8 PK 139 Ignition 1 Voltage 5-Volt Reference (without LS9)
B10-B12 - - Not Used
C1-C5 - - Not Used
C6-C7 - - Not Available
C8 0.5 PK 539 Ignition 1 Voltage 5-Volt Reference (without LS9)
0.5 PK 539 Ignition 1 Voltage
C9 - - Not Used
C10 0.8 PK 139 Ignition 1 Voltage 5-Volt Reference (without LS9)
0.8 PK 139 Ignition 1 Voltage 5-Volt Reference (without LS9)
C11-C12 - - Not Used
D1-D4 - - Not Used
D5 1 RD/WH 2840 Battery Positive Voltage
D6-D7 - - Not Available
D8 0.8 PK 39 Ignition 1 Voltage 5-Volt Reference (without LS9)
D9 - - Not Used
D10 0.5 PK 339 Ignition 1 Voltage
0.5 PK 339 Ignition 1 Voltage
D11 0.5 RD/WH 2440 Battery Positive Voltage 5-Volt Reference (without LS9)
0.8 RD/WH 2440 Battery Positive Voltage (MYC)
2.0 RD/WH 1840 Battery Positive Voltage (LS9)
D12 - - Not Used
E1 0.5 BK 1250 Ground
0.35 BK Ground (T90)
E2 - - Not Used
E3 0.35 D-GN 2087 5-Volt Reference (without LS9)
5-Volt Reference (without LS9)
0.5 PK 1239 Ignition Voltage (LS9)
E4 0.5 RD/WH 2440 Battery Positive Voltage (LS9)
0.8 RD/WH 2440 Battery Positive Voltage (MYC)
E5 0.35 WH/BK 448 Powertrain Diagnostic Enable
E6 0.8 PK 39 Ignition 1 Voltage (without LS9)
0.8 PK 39 Ignition 1 Voltage (without LS9)
E7 0.8 PK 39 Ignition 1 Voltage (without LS9)
0.8 PK 39 Ignition 1 Voltage (without LS9)
3.0 PK 39 Ignition 1 Voltage (LS9)
E8 - - Not Used
E9 0.5 PK 239 Ignition 1 Voltage (LS7)
Ignition 1 Voltage (LS9)
E10 0.5 PK 339 Ignition 1 Voltage
0.5 PK 339 Ignition 1 Voltage
E11 0.35 PK 1239 Ignition 1 Voltage (F55)
0.5 PK 1239 Ignition 1 Voltage
E12 0.35 PU/WH 6386 Starter Enable Relay Control
F1 0.35 BN/WH 419 Check Engine Indicator Control
F2 - - Not Used
F3 0.35 YE 43 Accessory Voltage
0.35 YE 43 Accessory Voltage (MYC)
F4 0.35 WH 17 Stop Lamp Switch Signal
0.35 WH 17 Stop Lamp Switch Signal (MYC)
F5 - - Not Used
F6 0.35 WH 121 Engine Speed Signal
F7-F8 - - Not Used
F9 0.8 PK 139 Ignition 1 Voltage (without LS9)
Ignition 1 Voltage (without LS9)
3.0 PK Ignition 1 Voltage (LS9)
F10 0.5 PK 1439 Ignition 1 Voltage (MYC)
0.5 PU/WH 1035 Starter Relay Coil Supply Voltage (MM6/MZ6)
F11 0.5 PK 1339 Ignition 1 Voltage (MYC)
F12 3 PU 6 Starter Solenoid Crank Voltage
Connector Part Information 
  • OEM: 15319895
  • Service: 15319895
  • Description: 68-Way F Metri-Pack 280 Series, Flexlock (GY)
Terminal Part Information 
  • Pins: A2, A5, A6, B2, B4-B6, B9, C8, C10, D5, D8, D10, D11, E1, E3-E7, E9-E12, F1, F3, F4, F6, F9-F12
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
Fig 6: Fuse Block - Underhood X3
GM647949Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X3

Pin Wire Circuit Function
A1 2 YE 243 Accessory Voltage
2 YE 243 Accessory Voltage
A2 2 YE 196 Windshield Wiper Motor Park Switch Signal
2 YE 196 Windshield Wiper Motor Park Switch Signal
A3 0.35 YE 43 Accessory Voltage (Japan)
A4 0.35 WH 17 Stop Lamp Switch Signal
A5 0.35 YE 61 Low Reference
A6 0.35 D-BU/WH 1315 Right Front Turn Signal Lamp Supply Voltage
A7 0.35 L-GN/BK 735 Outside Ambient Air Temperature Sensor Signal
A8 - - Not Used
A9 0.5 PK 1439 Ignition 1 Voltage
A10-A11 - - Not Used
A12 0.35 TN 28 Horn Relay Control
B1 0.35 OG 1732 Courtesy Lamps Supply Voltage (without LS9)
B2 0.35 D-GN/WH 817 Vehicle Speed Signal
B3 0.35 TN/WH 1969 Headlamp High Beam Relay Control
B4 - - Not Used
B5 3 RD/WH 1740 Battery Positive Voltage
B6 0.35 L-GN 1715 Windshield Wiper Switch High Signal
B7 0.35 GY 91 Windshield Wiper Switch Signal 2
B8-B10 - - Not Used
B11 0.8 RD/WH 640 Battery Positive Voltage
B12 - - Not Used
C1-C2 - - Not Used
C3 0.35 BN/WH 419 Check Engine Indicator Control
C4-C5 - - Not Used
C6-C7 - - Not Available
C8 0.35 WH 1080 Park Lamp Relay Control
C9-C10 - - Not Used
C11 0.35 BN 9 Park Lamp Supply Voltage
C12 0.35 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage
D1 0.35 BK 1550 Ground
D2 2 D-GN 95 Windshield Wiper Motor Low Speed Control
D3 2 PU 92 Windshield Wiper Motor High Speed Control
D4 - - Not Used
D5 0.35 L-BU 2088 Low Reference (without LS9)
0.35 L-BU 2088 Low Reference (without LS9)
0.8 RD/WH 2440 Battery Positive Voltage (LS9)
D6-D7 - - Not Available
D8 0.35 WH 121 Engine Speed Signal
0.35 WH 121 Engine Speed Signal (UV6)
D9 0.35 PU 333 Brake Fluid Level Sensor Signal
D10 0.35 WH 193 Rear Defog Relay Control
D11 0.8 RD/WH 2440 Battery Positive Voltage (without LS9)
D12 - - Not Used
E1-E3 - - Not Used
E4 0.35 PK/BK 109 Hood Ajar Switch Signal (UA2)
E5-E6 - - Not Used
E7 0.35 YE 43 Accessory Voltage
0.35 YE 43 Accessory Voltage (U3Z)
0.35 TN 43 Accessory Voltage (LS9)
E8 0.8 PK 839 Ignition 1 Voltage
E9 - - Not Used
E10 3 BK 1927 Radio Antenna/Rear Window Defog Control Module Control
E11 0.35 PK 1139 Ignition 1 Voltage
E12 - - Not Used
F1 0.35 PK/WH 1970 Headlamp Low Beam Relay Control
0.35 PK/WH 1970 Headlamp Low Beam Relay Control
F2 0.35 PK 94 Windshield Washer Switch Signal
F3 0.35 TN/WH 99 Windshield Washer Fluid Level Signal
F4 0.35 D-GN 2087 5-Volt Reference (without LS9)
5-Volt Reference (without LS9)
0.35 PK 1239 Ignition Voltage (MN3)
Ignition Voltage (MN3)
F5-F9 - - Not Used
F10 0.8 BN 9 Park Lamp Supply Voltage
F11 0.35 D-GN/WH 1317 Fog Lamp Relay Control
F12 3 RD/BK 642 Battery Positive Voltage (CM7)
Connector Part Information 
  • OEM: 15319894
  • Service: 15319894
  • Description: 68-Way F Metri-Pack 280 Series, Flexlock (NA)
Terminal Part Information 
  • Pins: A1, A2, B5, E10, F12
  • Terminal/Tray: 12191475/1
  • Core/Insulation Crimp: A/G
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: B11, D11, E8
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A3-A7, A9, A11, A12, B1-B3, B6, B7, C2, C9, C11, C12, D1, D5, D8, D10, E4, E7, E11, F1-F4, F6, F10, F11
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A3-A7, A11, A12, B1-B3, B6, B7, C2, C9, C11, C12, D1, D5, D8, D10, E4, E7, E11, F1-F4, F6, F10, F11 - E/C
  • Core/Insulation Crimp: Pins A9 - E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: D2, D3, E7
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: Pins D2, D3 - A/B
  • Core/Insulation Crimp: Pins E7 - See Terminal Repair Kit
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Fig 7: Fuse Block - Underhood X4
GM1243665Courtesy of GENERAL MOTORS CORP.
Fuse Block - Underhood X4

Pin Wire Circuit Function
A1 3 RD/BK 442 Battery Positive Voltage
A2 5 RD/BK 742 Battery Positive Voltage
B1 5 RD/BK 1442 Battery Positive Voltage
B2 - - Not Used
C1 5 RD/BK 242 Battery Positive Voltage
C2 3 RD/BK 142 Battery Positive Voltage
D1 5 RD/BK 342 Battery Positive Voltage
D2 - - Not Used
Connector Part Information 
  • OEM: 15447740
  • Service: 88987883
  • Description: 8-Way F Metri-Pack 800 Series (GY)
Terminal Part Information 
  • Pins: A1, A2, B1, C1, C2, D1
  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12150860/J-35616-44 (YE)
Fig 8: Body Control Module (BCM) Fuses And Relays
GM1831987Courtesy of GENERAL MOTORS CORP.
BODY CONTROL MODULE (BCM) FUSE AND RELAY IDENTIFICATION LEGEND

Fuse And Relay Description Rating Circuits
BCK/UP LAMP Relay - REVERSE LAMPS Fuse
BTSI SOL/STR WHL LCK Fuse 10A Automatic Transmission Shift Lever (MYC) and Steering Column Lock Control Module (Japan MM6/MZ6, MAE)
CLSTR/HUD Fuse 15A Instrument Panel Cluster (IPC) and Head Up Display (HUD) (UV6)
CRUISE SWTCH Fuse 2A Clutch Pedal Position (CPP) Sensor (MM6/MZ6/MN6) and Turn Signal/Multifunction Switch
CTSY/LAMP Fuse 10A Body Control Module (BCM)
DRIV DR SWTCH Fuse 10A Window Switch - Driver
DR LCK Fuse 15A Body Control Module (BCM)
ECM Fuse 15A Clutch Pedal Position (CPP) Sensor (MM6/MZ6/MN6), Engine Control Module (ECM) and Park/Neutral Position (PNP) Switch (MYC)
EXH MDL Fuse 10A Exhaust Flow Control Module (NPP/LS7/LS9)
GMLAN RUN/CRNK Fuse 20A Fuse Block - Underhood TCM/TRANS and ABS/MRRTD Fuses, Automatic Transmission (MYC), Electronic Brake Control Module (EBCM), Electronic Suspension Control (ESC) Module (F55), and Transmission Control Module (TCM) (MYC)
HTD SEAT/WPR RLY Fuse 10A Fuse Block - Underhood Diode 1, Diode 2 and WIPER RUN/ACC Relay 42
HVAC/PWR SND Fuse 10A HVAC Control Module and Theft Deterrent Alarm Siren (UA2)
IGN SWTCH/INTR SNSR Fuse 10A Body Control Module (BCM) and Intrusion Sensor (UA2)
ISRVM/HVAC Fuse 10A HVAC Control Module, Theft Deterrent Alarm Siren (UA2), Steering Column Lock Control Module, Air Temperature Sensor - Inside and Inside Rearview Mirror
ONSTAR Fuse 10A Vehicle Communication Interface Module (VCIM) (UE1) and Cellular Telephone Microphone
RDO/S-BAND/VICS Fuse 15A Digital Radio Receiver (U2K), Traffic Information Receiver (U3Z), and Radio
REAR FOG/ALDL/TOP SWTCH Fuse 10A Folding Top Control Switch (CM7), Relay Block - I/P REAR/FOG Relay (T79), and Data Link Connector (DLC)
REVERSE LAMPS Fuse 10A Backup Lamp - Left/Right and Inside Rearview Mirror
RUN CRNK Relay - CRUISE SW Fuse, ISRVM/HVAC Fuse, HTD SEAT/WPR RELAYS Fuse, GM LAN RUN/CRNK Fuse, ECM Fuse, and SDM/PSIR SW AIRBAG Fuse
SDM/AOS SWTCH AIRBAG Fuse 10A Inflatable Restraint Sensing and Diagnostic Module (SDM) and Inflatable Restraint Front Passenger Presence System (PPS) Module
STOP LAMP Relay - Center High Mounted Stop Lamp (CHMSL), Body Control Module (BCM) Logic, and Tail/Stop Lamp - Left/Right (T79)
SWC DM Fuse 2A Steering Wheel Control Switch - Right (UK3)
TPA Fuse 20A Folding Top Cover Pulldown Actuator (CM7)
TELE SWTCH/MSM Fuse 10A Steering Wheel Tilt/Telescope Switch (N37/NP7), Memory Seat Module - Driver (AAB) and Seat Adjuster Switch - Driver
TONNEAU RELSE Fuse 10A Relay Block - I/P TONNEAU RELSE Relay
Printed Circuit Board (PCB) Relays - Not Serviceable
DRIVER DOOR UNLATCH PCB Relay - Door Latch - Driver
INADVERTENT LOAD CONTROL PCB Relay - Courtesy Lamp - Left Front, Courtesy Lamp - Right Front, Garage Door Opener, I/P Compartment Lamp, Courtesy Lamp - Left Rear, Courtesy Lamp - Right Rear, Sunshade - Left, and Sunshade - Right
PASSENGER DOOR UNLATCH PCB Relay - Door Latch - Passenger
Fig 9: Body Control Module (BCM) - Top View
GM1671454Courtesy of GENERAL MOTORS CORP.
Fig 10: Body Control Module (BCM) - Bottom View
GM1671458Courtesy of GENERAL MOTORS CORP.
Fig 11: Body Control Module (BCM) X1
GM1376257Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X1

Pin Wire Circuit Function
1 - - Not Used
2 0.35 YE 5058 Intrusion Sensor Armed Signal (UA2)
3 - - Not Used
4 0.35 D-BU 2167 Folding Top Cover Ajar Switch Supply Voltage (CM7)
5-6 - - Not Used
7 0.35 L-GN 5724 Ignition Mode Switch Mode Control
8-11 - - Not Used
12 0.35 BK/WH 851 Ground
13 0.35 TN 28 Horn Relay Control
14 0.35 D-BU 5719 Ignition Mode Switch Start LED Signal
15 0.35 WH 5741 Steering Column Lock Module Lock Enable Relay Control (Except North America)
16 0.35 L-BU 1344 Trunk Release Relay Control
17 0.35 D-GN 1399 Accessory Voltage Signal (CO5/CM7)
18 0.35 OG/BK 744 Trunk Ajar Switch Signal
19 0.35 D-GN/WH 1317 Fog Lamp Relay Control
20-21 - - Not Used
22 0.35 YE 43 Accessory Voltage
23-28 - - Not Used
29 0.35 TN/WH 1969 Headlamp High Beam Relay Control
30-32 - - Not Used
33 0.35 L-GN 2166 Folding Top Cover Release Switch Supply Voltage (C05)
34 - - Not Used
35 0.35 TN 305 Trunk Key Switch Signal
36-37 - - Not Used
38 0.35 L-BU/WH 1314 Left Front Turn Signal Lamp Supply Voltage
39 - - Not Used
40 0.35 GY 91 Windshield Wiper Switch Signal 2
41 - - Not Used
42 0.35 GY 2169 Convertible Top Relay Cover Release Control (CM7)
43 - - Not Used
44 0.35 TN 126 Left Front Door Open Switch Signal
45-46 - - Not Used
47 0.35 OG/BK 737 Folding Top Cover Pull Down Ajar Signal (CM7)
48 - - Not Used
49 0.35 PU 5059 Intrusion Sensor Alarm On Signal (UA2)
50 - - Not Used
51 0.35 GY/BK 745 Left Front Door Ajar Switch Signal
52 - - Not Used
53 0.35 TN/WH 746 Right Front Door Ajar Switch Signal
54 - - Not Used
55 0.35 D-GN 1037 Body Control Module (BCM) Class 2 Serial Data
56 0.35 D-BU/WH 1315 Right Front Turn Signal Lamp Supply Voltage
57 0.35 WH 2282 Headlamp Washer Relay Control (CE4)
58-59 - - Not Used
60 0.35 PK 5780 Windshield Wiper Motor Park Switch Signal
61-62 - - Not Used
63 0.35 D-GN 1177 Right Front Door Open Switch Signal
64 - - Not Used
65 0.35 WH 1080 Park Lamp Relay Control
66 0.35 D-GN/WH 5723 Ignition Mode Switch Mode Voltage
67 - - Not Used
68 0.35 TN/BK 5168 Power Sounder Enable Signal (Except North America) (UA2)
69 0.35 PK/BK 109 Hood Ajar Switch Signal (Except North America) (UA2)
70 0.35 TN/WH 1384 Selective Ride Control Switch Signal (F55)
71 0.35 BN/WH 2091 Trunk Release Switch Supply Voltage
72 - - Not Used
Connector Part Information 
  • OEM: 15393122
  • Service: 88987847
  • Description: 72-Way F Micro-64 Unsealed (GY)
Terminal Part Information 
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Fig 12: Body Control Module (BCM) X2
GM1376254Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X2

Pin Wire Circuit Function
1 0.35 TN/BK 2500 High Speed GMLAN Serial Data (+)
2 0.35 TN/BK 2500 High Speed GMLAN Serial Data (+)
3 0.35 PK/WH 1970 Headlamp Low Beam Relay Control
4 0.35 PU 524 Headlamp Dimmer Switch High Beam Signal
5 0.35 BN/WH 301 Park Lamp Switch On Signal
6 0.35 YE 1977 Rear Fog Lamp Relay Control (Except North America) (T79)
7 0.35 PK 5068 Intrusion Sensor Switch Disable Signal (UA2)
8 - - Not Used
9 0.35 TN 2144 Hazard Switch Signal
10 - - Not Used
11 0.35 OG 5721 Ignition Mode Switch Off LED Signal
12-13 - - Not Used
14 0.35 TN 28 Horn Relay Control
15 0.35 WH 103 Headlamp Switch On Signal
16 0.35 OG 192 Front Fog Lamp Switch Signal
17 0.35 L-BU 1872 Park Lamp Switch Off Signal
18 0.35 GY 5381 5-Volt
19 0.35 TN 2501 High Speed GMLAN Serial Data (-)
20 0.35 TN 2501 High Speed GMLAN Serial Data (-) (UE1)
21 - - Not Used
22 0.35 L-BU 187 Rear Fog Lamp Switch Signal (T79)
23-30 - - Not Used
31 0.35 TN 5380 Brake Position Sensor Signal
32-48 - - Not Used
49 0.35 D-BU 75 Reverse Switch Supply Voltage (MM6/MZ6/MN6)
50 - - Not Used
51 0.35 BN 1356 Flash To Pass Switch Signal
52-56 - - Not Used
57 0.35 L-BU 1714 Windshield Wiper Switch Low Signal
58 - - Not Used
59 0.35 BN 5382 Low Reference
60 - - Not Used
61 0.35 GY 1884 Cruise Control Set/Coast/Resume/Accelerate Switch Signal
62-65 - - Not Used
66 0.35 L-BU/WH 1414 Left Front Turn Signal Switch Signal
67 0.35 D-BU/WH 1415 Right Front Turn Signal Switch Signal
68 0.35 BN/WH 1571 Traction Control Switch Signal
69 0.35 D-GN/WH 1932 Shift Select Switch Park Signal (MYC)
0.35 L-BU 2182 Reverse Lamp Relay Control (MM6/MZ6/MN6)
70 0.35 GY/BK 896 Hard Top Connected Signal (CO5/CM7)
71 0.35 L-GN 5720 Ignition Mode Switch Accessory LED Signal
72 - - Not Used
Connector Part Information 
  • OEM: 15393121
  • Service: 88987848
  • Description: 72-Way F Micro-64 Unsealed (GY)
Terminal Part Information 
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)
Fig 13: Body Control Module (BCM) X3
GM1814460Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X3

Pin Wire Circuit Function
A1 0.8 TN 694 Driver Door Lock Actuator Unlock Control
A2 - - Not Used
A3 0.5 OG 1732 Courtesy Lamp Supply Voltage
A4 0.8 TN 294 Door Lock Actuator Unlock Control
A5 - - Not Used
A6 0.5 RD/WH 740 Battery Positive Voltage (U2K/U3Z)
A7 0.35 RD/WH 240 Battery Positive Voltage
A8 0.35 RD/WH 1040 Battery Positive Voltage
A9 0.8 YE 18 Left Rear Stop/Turn Lamp Supply Voltage
A10 0.35 WH 156 Courtesy Lamp Switch Signal
A11 - - Not Used
A12 0.8 D-GN 19 Right Rear Stop/Turn Lamp Supply Voltage
B1-B2 - - Not Used
B3 0.35 RD/WH 1240 Battery Positive Voltage (UA2)
B4 - - Not Used
B5 0.35 PK 3 Ignition 1 Voltage
B6-B7 - - Not Available
B8-B11 - - Not Used
B12 0.35 PK 5722 Ignition Mode Switch LED Supply Voltage
C1-C2 - - Not Available
C3 0.35 PK 1139 Ignition 1 Voltage
0.35 PK 1139 Ignition 1 Voltage (UL2)
C4 - - Not Used
C5 0.8 PK 839 Ignition 1 Voltage
C6-C7 - - Not Available
C8-C11 - - Not Used
C12 0.35 PK 94 Windshield Washer Relay Control
D1 5 RD/BK 242 Battery Positive Voltage
D2 - - Not Available
D3 0.35 PK 1139 Ignition 1 Voltage (KA1)
0.35 PK 1139 Ignition 1 Voltage (KA1)
D4 0.5 RD/WH 1340 Battery Positive Voltage (NPP/LS7/LS9)
D5 0.8 PK 839 Ignition Voltage (LS9)
D6 5 RD/BK 242 Battery Positive Voltage
D7 0.35 RD/WH 840 Battery Positive Voltage (MYC)
D8 - - Not Used
D9 0.5 L-GN 24 Backup Lamp Supply Voltage
D10 0.8 RD/WH 640 Battery Positive Voltage
D11 1 RD/WH 540 Battery Positive Voltage (CM7)
D12 3 RD/WH 1740 Battery Positive Voltage
Connector Part Information 
  • OEM: 15492675
  • Service: 15404825
  • Description: 41-Way F Metri-Pack 280 800 Series (RD)
Terminal Part Information 
  • Pins: D1, D6
  • Terminal/Tray: 12191475/1
  • Core/Insulation Crimp: A/G
  • Release Tool/Test Probe: 12094429/J-35616-4A (PU)
  • Pins: A7, A8, A10, B3, B5, B12, C3, C12, D3, D7
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: D12
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A1, A3, A4, A6, A9, A12, C5, D9-D11
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A1, A4, A9, A12, C5, D10, D11 - C/A
  • Core/Insulation Crimp: Pins A3, A6, D9 - E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Fig 14: Body Control Module (BCM) X4
GM697044Courtesy of GENERAL MOTORS CORP.
Body Control Module (BCM) X4

Pin Wire Circuit Function
A1 - - Not Used
A2 0.35 WH 156 Courtesy Lamp Switch Signal
0.35 WH 156 Courtesy Lamp Switch Signal
A3 0.35 L-GN 24 Backup Lamp Supply Voltage (without UA2)
A4-A12 - - Not Used
B1 0.35 PK 94 Windshield Washer Switch Signal
B2-B9 - - Not Used
B10 0.5 PK 1439 Ignition 1 Voltage
B11-B12 - - Not Used
C1 0.5 RD/WH 140 Battery Positive Voltage (UA2 with U65)
0.5 RD/WH 140 Battery Positive Voltage (UE1)
C2-C3 - - Not Used
C4 0.35 WH 17 Stop Lamp Switch Signal
C5 - - Not Used
C6-C7 - - Not Available
C8 0.35 PK 3 Ignition 1 Voltage
C9 - - Not Used
C10 0.35 PK 739 Ignition 1 Voltage
0.5 PK 739 Ignition 1 Voltage
C11 0.35 BN 1244 Instrument Panel Lamps Supply Voltage 2
C12 0.35 YE 1491 Backlight Lamp Control (UK3)
D1 0.35 RD/WH 340 Battery Positive Voltage
D2 - - Not Used
D3 0.35 PK 3 Ignition 1 Voltage
D4 0.8 L-BU 20 Stop Lamp Supply Voltage
D5 0.35 OG 1732 Courtesy Lamp Supply Voltage (LS3/LS7)
D6-D7 - - Not Available
D8 0.5 PK 639 Ignition 1 Voltage
D9 - - Not Used
D10 0.5 RD/WH 1140 Battery Positive Voltage
0.5 RD/WH 1140 Battery Positive Voltage (UV6)
D11-D12 - - Not Used
E1 0.35 RD/WH 440 Battery Positive Voltage (AAB)
0.35 RD/WH 440 Battery Positive Voltage (N37/NP7)
E2-E4 - - Not Used
E5 0.5 OG 1732 Electronic Suspension Control Unit 12V Reference
E6 0.5 RD/WH 740 Battery Positive Voltage
E7 - - Not Used
E8 0.35 PK 1039 Ignition 1 Voltage
E9 - - Not Used
E10 0.5 RD/WH 1240 Battery Positive Voltage
E11 - - Not Used
E12 0.5 BK 1550 Ground
F1 0.35 RD/WH 240 Battery Positive Voltage
0.35 RD/WH 240 Battery Positive Voltage (UA2)
F2-F4 - - Not Used
F5 0.5 RD/WH 1040 Battery Positive Voltage (T79)
F6 0.35 RD/WH 1040 Battery Positive Voltage (CM7)
F7-F8 - - Not Used
F9 0.35 RD/WH 3140 Battery Positive Voltage (CM7)
F10-F12 - - Not Used
Connector Part Information 
  • OEM: 15492668
  • Service: 88988776
  • Description: 68-Way F Metri-Pack 280 Series, Flexlock (GY)
Terminal Part Information 
  • Pins: D4
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A2, A3, B1, B10, C4, C8, C10, D1, D3, D5, D8, D10, E1, E5, E6, E8, E10, E12, F1, F5, F6, F9
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A2, B10, D8, D10, E6, E10, E12 - E/A
  • Core/Insulation Crimp: Pins A3, B1, C4, C8, C10, D1, D3, D5, E1, E5, E8, F1, F5, F6, F9 - E/C
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Fig 15: Fuse Block - I/P Label
GM1831987Courtesy of GENERAL MOTORS CORP.
Fuse Block - I/P Label Usage

Device Rating Description
AUX PWR Fuse 20A Accessory Power Outlet
LTR Fuse 20A Cigar Lighter
DRVR HTD SEAT Fuse 20A Heated Seat Module - Driver (KA1) and Lumbar Switch - Driver
PASS HTD SEAT Fuse 20A Heated Seat Module - Passenger (KA1) and Lumbar Switch - Passenger
PWR SEATS MSM Circuit Breaker 30A Memory Seat Module - Driver (AAB), Seat Adjuster Switch - Driver, and Seat Adjuster Switch - Front Passenger
PWR/WNDWS TRUNK/FUEL RELSE Circuit Breaker 30A Door Control Module - Driver, Door Control Module - Passenger, and Relay Block - I/P FUEL DR RELSE Relay
TRUNK RELSE Fuse 15A Rear Compartment Lid Pulldown Actuator (Coupe/ZO6/ZR1), Rear Compartment Lid Latch (Convertible) and Relay Block - I/P TRUNK RELSE Relay (Convertible)
WPR DWELL Fuse 10A Body Control Module (BCM)
WPR/WSW Fuse 10A Windshield Wiper/Washer Switch
Fig 16: Fuse Block - I/P Top View
GM1671460Courtesy of GENERAL MOTORS CORP.
Fig 17: Fuse Block - I/P Bottom View
GM1556095Courtesy of GENERAL MOTORS CORP.
Fuse Block - I/P Wire Entry

Pin Wire Circuit Function
A1-A3 - - Not Used
A4 0.5 RD/WH 3640 Battery Positive Voltage
A5 - - Battery Positive Voltage Bussing
A6 0.8 RD/WH 3540 Battery Positive Voltage
A7 5 RD/BK 742 Battery Positive Voltage
A8 0.8 RD/WH 3440 Battery Positive Voltage
A9 - - Battery Positive Voltage Bussing
B1-B5 - - Not Used
B6 0.8 RD/WH 3240 Battery Positive Voltage (KA1)
B7 5 RD/BK 742 Battery Positive Voltage (KA1)
B8 0.8 RD/WH 1640 Battery Positive Voltage (KA1)
B9 - - Battery Positive Voltage Bussing
C1 - - Not Used
C2 2 YE 243 Accessory Voltage
C3 0.35 YE 143 Accessory Voltage
C4-C7 - - Not Used
C8 2 YE 196 Windshield Wiper Motor Park Switch Signal
C9 0.35 PK 5780 Windshield Wiper Motor Park Switch Signal
D1-D2 - - Not Used
D3 3 RD/WH 1540 Battery Positive Voltage
D4 5 RD/BK 742 Battery Positive Voltage
D5 3 RD/WH 1540 Battery Positive Voltage
D6 5 RD/BK 742 Battery Positive Voltage
D7 3 RD/WH 1440 Battery Positive Voltage
D8-D9 - - Not Used
Connector Part Information 
  • OEM: 12160504
  • Service: See Catalog
  • Description: 36-Way F Metri-Pack 280 Series, Flexlock (BK)
Terminal Part Information 
  • Pins: A7, B7, D4, D6
  • Terminal/Tray: 12110657/4
  • Core/Insulation Crimp: B/G
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A4, A6, A8, B6, B8, C2, C3, C8, C9, D3, D5, D7
  • Terminal/Tray: 12110652/4
  • Core/Insulation Crimp: Pins A4, A6, A8, B6, B8, C3, C9, D3, D5, D7 - See Terminal Repair Kit
  • Core/Insulation Crimp: Pins C2, C8 - A/B
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
Fig 18: Relay Block - I/P Label
GM1831987Courtesy of GENERAL MOTORS CORP.
RELAY BLOCK - I/P RELAY IDENTIFICATION LEGEND

Relay Description Rating Circuits
FUEL DR RELSE Relay - Fuel Door Release Actuator and Fuel Door Release Switch
REAR/FOG Relay (T79) - Fog Lamp - Left Rear/Right Rear (T79)
TONNEAU RELSE Relay - Folding Top Cover Latch Actuator
TRUNK RELSE Relay (Convertible) - Body Control Module (BCM) and Rear Compartment Lid Latch Assembly (Convertible)
Fig 19: Relay Block - I/P Top View
GM1556082Courtesy of GENERAL MOTORS CORP.
Fig 20: Relay Block - I/P Bottom View
GM1556081Courtesy of GENERAL MOTORS CORP.
Fig 21: Relay Block - I/P Wire Entry
GM1556081Courtesy of GENERAL MOTORS CORP.
Relay Block - I/P Wire Entry

Pin Wire Circuit Function
A1-A3 - - Not Used
A2 - - Not Available
A3 - - Not Used
A4 0.5 RD/WH 1040 Battery Positive Voltage
0.35 RD/WH 1040 Battery Positive Voltage
A5 - - Not Available
A6 0.35 L-BU 187 Rear Fog Lamp Switch Signal (T79)
A7 0.35 RD/WH 3140 Battery Positive Voltage (CM7)
A8 - - Not Available
A9 0.35 BK 1550 Ground (CM7)
B1-B3 - - Not Used
B4 0.35 RD/WH 1040 Battery Positive Voltage
B5 - - Not Used
B6 0.5 OG 122 Rear Fog Lamp Supply Voltage (T79)
B7 0.35 GY 2169 Convertible Top Relay Cover Release Control (CM7)
B8 - - Not Used
B9 0.35 PU 2168 Folding Top Lid Latch Supply Voltage (CM7)
C1-C3 - - Not Used
C4 2 RD/WH 1440 Battery Positive Voltage
C5 - - Not Used
C6 0.35 WH 93 Fuel Door Release Relay Control
C7 0.5 RD/WH 3640 Battery Positive Voltage
0.5 RD/WH 3640 Battery Positive Voltage
C8 - - Not Used
C9 0.35 L-BU 1344 Trunk Release Relay Control
D1 - - Not Used
D2 - - Not Available
D3 - - Not Used
D4 2 RD/WH 1440 Battery Positive Voltage
D5 - - Not Available
D6 2 PK 79 Trunk Release Relay Control
D7 0.5 RD/WH 3640 Battery Positive Voltage
D8 - - Not Available
D9 0.5 L-BU 383 Trunk Release Control
Connector Part Information 
  • OEM: 12146836
  • Service: 12146836
  • Description: 30-Way F Metri-Pack 280 Series, Flexlock (BK)
Terminal Part Information 
  • Pins: C4, D4, D6
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A4, A6, A7, A9, B4, B6, B7, B9, C6, C7, C9, D7, D9
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A4, B4, B6, C7, D7, D9 - E/A
  • Core/Insulation Crimp: Pins A6, A7, A9, B7, B9, C6, C9 - E/C
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
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