Fuse Block - Underhood X3

Fig 1: Fuse Block - Underhood X3 Connector End Views

Courtesy of GENERAL MOTORS COMPANY

Pin	Wire	Circuit	Function
A1	0.5 D-GN/WH	1335	Right Rear Turn Signal Lamp Supply Voltage (X88 or Z88 or EXP with E52)
A1	0.5 D-GN	19	Right Rear Stop/Turn Lamp Supply Voltage (X88 without E52 or Z75 without EXP)
A2	0.5 YE/BK	1334	Left Rear Turn Signal Lamp Supply Voltage (X88 or Z88 or EXP with E52)
A2	0.5 YE	18	Left Rear Stop/Turn Lamp Supply Voltage (X88 without E52 or Z75 without EXP)
A3	0.5 L-BU	20	Stop Lamp Supply Voltage (X88 or Z88 or EXP with E52)
A4	0.5 L-BU/BK	20	Stop Lamp Supply Voltage (X88 or Z88 or EXP with E52)
A5	0.5 RD/WH	1840	Battery Positive Voltage
A6	-	-	Not Used
A7	0.5 BN	2509	Left Rear Park Lamps Supply Voltage
A8	0.5 BN	2509	Left Rear Park Lamps Supply Voltage (without E52)
B1	3 RD/BK	2440	Battery Positive Voltage (Z55)
B2	3 RD/WH	2440	Battery Positive Voltage (G69)
B3	2 RD	1640	Battery Positive Voltage (JL4)
B4	0.8 BN	2109	Trailer Park Lamp Supply Voltage (EXP)
B4	1 BN	2109	Trailer Park Lamp Supply Voltage (without EXP)
B5	1 GY	120	Fuel Pump Supply Voltage (L96)
C1	3 RD	1842	Battery Positive Voltage (G69)
C2	3 RD/BK	442	Battery Positive Voltage
D1	5 RD/BK	1742	Battery Positive Voltage (JH6)
D2	-	-	Not Used
E1	2 RD/WH	4340	Battery Positive Voltage (20 Series)
E2	0.8 L-GN	1624	Trailer Backup Lamps Supply Voltage (EXP)
E2	1 L-GN	1624	Trailer Backup Lamps Supply Voltage (except EXP)
E3	0.5 L-GN	24	Backup Lamp Supply Voltage
E3	0.5 L-GN	24	Backup Lamp Supply Voltage (except EXP)
E4	3 RD/WH	1940	Battery Positive Voltage (except L96)
E5	-	-	Not Used
F1	0.8 YE	1618	Trailer Left Rear Turn/Stop Lamp Supply Voltage
F2	0.8 D-GN	1619	Trailer Right Rear Turn/Stop Lamp Supply Voltage
F3-F4	-	-	Not Used
F5	0.5 PK	439	Ignition Voltage (without NQZ)
F6	-	-	Not Used
F7	0.5 BN	2609	Right Rear Park Lamps Supply Voltage
F8	0.8 GY	5185	Right Trailer Park Lamp (EXP)

Connector Part Information

Harness Type: Chassis
OEM Connector: 13513342
Service Connector: 19115657
Description: 30-Way F GT 150 280 Metri-Pack 800 Series (BK)

Terminal Part Information

Pins: A1-A5, A7, A8, F5, F7
Terminated Lead: Pins A1-A5, A7, A8, F5 (10 Series), F7 - 13575790
Terminated Lead: Pins F5 (20 Series) - 13575790
Release Tool: J-38125-553
Diagnostic Test Probe: J-35616-2A (GY)
Terminal/Tray: 15496302/5
Core/Insulation Crimp: Pins A1-A5, A7, A8, F5 (10 Series), F7 - E/A
Core/Insulation Crimp: Pins F5 (20 Series) - 2/A

Pins: B1-B3, B5, E1, E4
Terminated Lead: Service by Harness - See Part Catalog
Release Tool: J-38125-553
Diagnostic Test Probe: J-35616-4A (PU)
Terminal/Tray: 13525969/4
Core/Insulation Crimp: Pins B1, B2, B5, E4 - F/D
Core/Insulation Crimp: Pins B3, E1 - 4/4

Pins: B4, E2, E3
Terminated Lead: Service by Harness - See Part Catalog
Release Tool: J-38125-553
Diagnostic Test Probe: J-35616-4A (PU)
Terminal/Tray: 13525970/4
Core/Insulation Crimp: Pins B4, E2, E3 (T79) - 2/A
Core/Insulation Crimp: Pins E3 (T79) - E/A

Pins: C1, C2, D1
Terminated Lead: 13575718
Release Tool: J-38125-558
Diagnostic Test Probe: J-35616-44 (YE)
Terminal/Tray: 12110127/19
Core/Insulation Crimp: F/G