Junction Block - Right I/P (Wire Entry)

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Junction Block - Right I/P (Wire Entry)

Courtesy of GENERAL MOTORS CORP.

Pin	Wire Color	Circuit No.	Function
2A1	-	-	Not Used
2A2	0.35 TN	481	Outside Moisture Signal 1 (10 Series)
2A3	0.35 L-GN	482	Outside Moisture Signal 2 (10 Series)
2A4	0.35 WH	2283	Ignition Voltage (10 Series)
2A4	0.35 WH	2283	Ignition Voltage (NQH/NQF +10 Series)
2A4-2A6	-	-	Not Used
2A7	-	-	Ground Bus
2B1	0.35 RD/WH	3140	Battery Positive Voltage
2B2	0.5 BN	2509	Left Front Park Lamps Supply Voltage
2B3	0.35 YE	43	Accessory Voltage
2B4	0.5 BN/WH	230	Instrument Panel Lamp Dimming Control
2B5	0.5 WH	5990	Emergency Lamp Switch Signal (5Y0/5X7)
2B6	0.5 BK	1050	Ground
2B7	0.35 OG	300	Ignition 3 Voltage (Export w/CF5)
3A1	0.5 D-GN	117	Right Front Speaker Output (-)
3A2	0.5 L-GN	200	Right Front Speaker Output (+)
3A3	0.35 BK	1850	Ground
3A4	0.8 D-BU/WH	1315	Right Front Turn Signal Lamp Supply Voltage (DL3/DPN)
	0.8 D-BU/WH	1315	Right Front Turn Signal Lamp Supply Voltage (DL3/DPN)
	0.35 L-BU	244	Passenger Door Lock Switch Lock Signal (AU3 -YE9)
3A5	0.35 TN/WH	746	Right Front Door Ajar Switch Signal (-AN3/DL3)
3A6	0.8 GY	295	Door Lock Actuator Lock Control (AU3 -AN3/DL3)
3A7	3 BK	1050	Ground
3B1	0.35 D-GN	5060	Low Speed GMLAN Serial Data (YE9 +AN3/DL3)
3B2	0.8 RD/WH	240	Battery Positive Voltage
3B3	0.8 TN	294	Door Lock Actuator Unlock Control (AU3 -AN3/DL3)
3B4	2 RD/WH	1340	Battery Positive Voltage (A31)
3B4	0.35 D-BU	245	Passenger Door Lock Switch Unlock Signal (AU3 -YE9)
3B5	0.35 BN/WH	230	Instrument panel lamps dimming Control (AU3)
3B6	0.35 OG	5922	Passenger Door Open Signal (-AN3/DL3)
3B7	-	-	Ground Bus
4A1	0.35 GY	598	5-Volt Reference
4A2	0.35 TN	520	Lower Right Air Temperature Sensor Signal (CJ2)
4A3	0.35 TN	518	Lower Left Air Temperature Sensor Signal (CJ2)
4A4	0.35 YE	1791	Low Reference
4A5	0.35 PU	1838	Recirculation Door Position Signal (CJ2)
4A6	0.35 GY/BK	754	Blower Motor Speed Control
4A7	3 BK	1050	Ground
4B1	-	-	5-Volt Reference Bus
4B2	0.35 D-BU	1199	Air Temperature Door Control
4B3	0.35 TN	2273	Mode Door Control
4B4	-	-	Low Reference Bus
4B5	0.35 YE/BK	713	Defrost/Heater Mode Valve Position Sensor Signal
4B6	0.35 L-BU	733	Air Temperature Door Position Signal
4B7	-	-	Ground Bus
5A	0.35 D-GN	6101	Low Reference
5B	0.35 PK	839	Ignition 1 Voltage
5B	0.35 PK	839	Ignition 1 Voltage
5C	0.35 PK	839	Ignition 1 Voltage
5D	0.35 D-BU	1646	Auxiliary Air Temperature Door Position Signal
5E	0.35 WH/BK	1236	Auxiliary Air Temperature Door Control
5F	0.35 D-GN	1614	Recirculation Door Control
6A	5 RD/BK	542	Battery Positive Voltage
6B	3 BK	1050	Ground
6B	3 BK	1050	Ground

Connector Part Information

OEM: 15489487
Service: See Catalog
Description: 40-Way F (BK)

Terminal Part Information

Pins: 2A4, 2B4, 3B1, 5A, 5C, 5D, 5E, 5F
Terminal/Tray: 15304722/8
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 15315247/J-35616-5 (PU)

Pins: 3A1, 3A4
Terminal/Tray: 15304724/8
Core/Insulation Crimp: 2/A
Release Tool/Test Probe: See Terminal Repair Kit

Pins: 2A2, 2A3, 2B3, 2B6, 2B7, 3A7, 4A1, 4A2, 4A3, 4A4, 4A5, 4A6, 4A7, 4B2, 4B3, 4B5, 4B6, 5B
Terminal/Tray: 15304724/8
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit

Pins: 2B1, 3B4
Terminal/Tray: 15304724/8
Core/Insulation Crimp: C/D
Release Tool/Test Probe: See Terminal Repair Kit

Pins: 6A
Terminal/Tray: 12066493/3
Core/Insulation Crimp: B/G
Release Tool/Test Probe: 12094430/J-35616-43 (RD)

Pins:6B
Terminal/Tray: 12066493/3
Core/Insulation Crimp: F/G
Release Tool/Test Probe: 12094430/J-35616-43 (RD)