Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSBUICK2006RAINIER 4.2 S, AWDREPAIR AND DIAGNOSISELECTRICALMOTORS, SWITCHES, RELAYSOEM CONNECTOR END VIEWS (1 OF 5)ELECTRICAL CENTER IDENTIFICATION CONNECTOR END VIEWSFUSE BLOCK CONNECTOR END VIEW - REAR, BOTTOM VIEW

2006 Buick Rainier 4.2 S, AWD

Fuse Block Connector End View - Rear, Bottom View

2006 Buick Rainier 4.2 S, AWDSECTION Fuse Block Connector End View - Rear, Bottom View

Fig 1: Rear Fuse Block - Bottom View

Courtesy of GENERAL MOTORS CORP.

Fuse Block - Rear C1

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15319896 68-Way F Metri-Pack 280 Unsealed (BK)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	BN/WH	230	Instrument Panel Lamps Dimming Control
A3	-	-	Not Used
A4	L-GN	24	Backup Lamp Supply Voltage (Z88)
A5	-	-	Not Used
A6	BN	4	Accessory Voltage
A7	YE	143	Accessory Voltage
A8	BN	341	Ignition 3 Voltage
A8	BN	341	Ignition 3 Voltage
A9	L-GN/BK	735	Ambient Air Temperature Sensor Signal (CJ3)
A10	-	-	Not Used
A11	TN/BK	5168	Power Sounder Enable Signal (BAE)
A12	-	-	Not Used
B1	L-BU	1134	Park Brake Switch Signal
B2	BN/WH	230	Instrument Panel Lamps Dimming Control
B3	BN	2309	Front Park Lamps Supply Voltage (T87)
B4	WH	17	Stop Lamp Switch Signal
B5	L-BU	1320	Stop Lamp Supply Voltage
B5	L-BU	1320	Stop Lamp Supply Voltage
B6	-	-	Not Used
B7	YE	243	Accessory Voltage (5.3L/6.0L)
B8	BN	341	Ignition 3 Voltage
B8	BN	341	Ignition 3 Voltage
B9	-	-	Not Used
B10	PU/WH	1382	LED Dimming Signal
B10	PU/WH	1382	LED Dimming Signal (NR9/NP8)
B11	BN	5204	Intrusion Sensor Data Signal (BAE)
B12	-	-	Not Used
C1	OG	4340	Battery Positive Voltage
C1	OG	4340	Battery Positive Voltage (Except Short Wheel Base W/CJ3)
C2	-	-	Not Used
C3	BN	2309	Front Park Lamps Supply Voltage
C4	L-BU	2114	Left Turn Signal Lamps Supply Voltage
C4	L-BU	2114	Left Turn Signal Lamps Supply Voltage
C5	YE	685	Left Turn Signal Flasher Signal
C8	BN	341	Ignition 3 Voltage
C9-C12	-	-	Not Used
D1	OG	340	Battery Positive Voltage
D1	OG	340	Battery Positive Voltage (U2K)
D2	-	-	Not Used
D3	BN	2109	Trailer Park Lamps Supply Voltage (UY7)
D4	D-BU	2115	Right Turn Signal Lamps Supply Voltage
D4	D-BU	2115	Right Turn Signal Lamps Supply Voltage
D5	TN	686	Right Turn Signal Flasher Signal
D8	BN	141	Ignition 3 Voltage (CJ3)
D9	OG	300	Ignition 3 Voltage
D10	BK	481	Outside Moisture Sense Signal 1
D11	-	-	Not Used
D12	PK	39	Ignition 1 Voltage
E1-E2	-	-	Not Used
E3	OG	1040	Battery Positive Voltage
E4	-	-	Not Used
E5	BN	341	Ignition 3 Voltage
E5	BN	341	Ignition 3 Voltage
E6	WH	1390	Off/Run/Crank Voltage
E7	PK	1020	Ignition 0 Voltage
E8	BN	241	Ignition 3 Voltage
E8	BN	241	Ignition 3 Voltage (NP8/NR9)
E9	-	-	Not Used
E10	BN	718	Low Reference (CJ3)
E11	L-BU	5362	Inclination Sensor Signal (BAE)
E12	PK	639	Ignition 1 Voltage
F1	-	-	Not Used
F2	YE	1977	Rear Fog Lamp Relay and Indicator Control (T79)
F3	OG	1040	Battery Positive Voltage
F4	-	-	Not Used
F5	BN	341	Ignition 3 Voltage (JL4)
F6-F7	-	-	Not Used
F8	BN	441	Ignition 3 Voltage
F9-F12	-	-	Not Used

Fuse Block - Rear C2

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15319894 68-Way F Metri-Pack 280 Unsealed (NA)
Pin	Wire Color	Circuit No.	Function
A1	OG	3640	Battery Positive Voltage
A2	BN/WH	230	Instrument Panel Lamps Dimming Control
A2	BN/WH	230	Instrument Panel Lamps Dimming Control
A3	OG	1340	Battery Positive Voltage
A4	-	-	Not Used
A5	OG	2740	Battery Positive Voltage (w/Memory)
A6	-	-	Not Used
A7	-	-	Not Used
A8	OG	1240	Battery Positive Voltage
A9	D-GN	1188	Power Window Switch Right Rear Down Signal
A10-A11	-	-	Not Used
A12	L-GN/BK	748	Right Rear Door Ajar Switch Signal
B1	RD	122	Rear Fog Lamp Supply Voltage (T79)
B2	L-BU	1320	Stop Lamp Supply Voltage
B3	OG	1340	Battery Positive Voltage
B4	D-BU	2115	Right Turn Signal Lamps Supply Voltage
B4	D-BU	2115	Right Turn Signal Lamps Supply Voltage
B5	OG	2740	Battery Positive Voltage
B6	-	-	Not Used
B7	-	-	Not Used
B8	OG	1240	Battery Positive Voltage
B9-B11	-	-	Not Used
B12	D-BU	2307	Passenger Air Bag On Indicator Control (w/AL0)
C1	OG	3540	Battery Positive Voltage (AR9)
C2	L-BU	1320	Stop Lamp Supply Voltage
C3	L-BU	2114	Left Turn Signal Lamps Supply Voltage
C3	L-BU	2114	Left Turn Signal Lamps Supply Voltage
C4	-	-	Not Used
C5	OG	4440	Battery Positive Voltage
C8	D-GN	2308	Passenger Air Bag Off Indicator Control (w/AL0)
C9	-	-	Not Used
C10	OG	4140	Battery Positive Voltage
C11	-	-	Not Used
C12	L-BU	2265	Power Window Lockout Left Rear Signal
D1	OG	3540	Battery Positive Voltage (AR9)
D2	BN	2509	Left Rear Park Lamps Supply Voltage
D3-D4	-	-	Not Used
D5	OG	3740	Battery Positive Voltage (UQA)
D8	TN	294	Door Lock Actuator Unlock Control
D8	TN	294	Door Lock Actuator Unlock Control
D9	-	-	Not Used
D10	OG	4240	Battery Positive Voltage
D11	-	-	Not Used
D12	L-GN	2266	Power Window Lockout Right Rear Signal
E1	OG	840	Battery Positive Voltage (Long Wheel Base)
E2	BN	2509	Left Rear Park Lamps Supply Voltage
E3	-	-	Not Used
E4	OG	3140	Battery Positive Voltage (UE1)
E4	OG	3140	Battery Positive Voltage (UE1)
E5	L-GN	24	Backup Lamp Supply Voltage (X88/W49/Z89)
E5	L-GN	24	Backup Lamp Supply Voltage (X88/W49/Z89)
E6-E8	-	-	Not Used
E9	YE	1187	Power Window Switch Left Rear Down Signal
E10-E11	-	-	Not Used
E12	GY/BK	1186	Power Window Switch Right Rear Up Signal
F1	YE	820	CHMSL Supply Voltage
F2	BN/WH	2609	Right Rear Park Lamps Supply Voltage
F3-F5	-	-	Not Used
F6	GY	295	Door Lock Actuator Lock Control
F6	GY	295	Door Lock Actuator Lock Control
F7	-	-	Not Used
F8	BK	1350	Ground
F9	-	-	Not Used
F10	L-BU/BK	747	Left Rear Door Ajar Switch Signal
F11	-	-	Not Used
F12	WH	1185	Power Window Switch Left Rear Up Signal

Fuse Block - Rear C3

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15319893 32-Way F Metri-Pack 280 Unsealed (GY)
Pin	Wire Color	Circuit No.	Function
A1	-	-	Not Used
A2	BK	1350	Ground
A3 - A4	-	-	Not Used
A5	D-BU	2307	Passenger Air Bag On Indicator Control (w/AL0)
A6	-	-	Not Used
B1	-	-	Not Used
B2	D-GN	801	RAP Fuse Supply Voltage (Long Wheel Base w/CF5)
B3	-	-	Not Used
B4	D-BU	1353	RAP Supply Voltage (Short Wheel Base w/CF5)
B5	-	-	Not Used
B6	GY/BK	690	Courtesy Lamp Low Control
B6	GY/BK	690	Courtesy Lamp Low Control (Y92)
C1	D-GN	2308	Passenger Air Bag On Indicator Control (w/AL0)
C2	D-GN	801	RAP Supply Voltage (A34)
C3-C6	-	-	Not Used
D1-D5	-	-	Not Used
D6	L-GN	24	Backup Lamp Supply Voltage
E1	OG	3140	Battery Positive Voltage
E1	OG	3140	Battery Positive Voltage (U42 W/O UG1)
E2	PK	639	Ignition 1 Voltage (DD4/DD5/AL0)
E3	BN/WH	230	Instrument Panel Lamps Dimming Control
E4	OG	1740	Battery Positive Voltage (CF5)
E5	-	-	Not Used
E6	BN	718	Low Reference (CJ3)
F1	YE	443	Accessory Voltage (CE1)
F2	-	-	Not Used
F3	L-GN/BK	735	Ambient Air Temperature Sensor Signal (CJ3)
F4	BK	481	Outside Moisture Sensor Signal 1 (CE1)
F5	-	-	Not Used
F6	OG	1732	Courtesy Lamps Supply Voltage
F6	OG	1732	Courtesy Lamps Supply Voltage (Y92)

Fuse Block - Rear C4

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15401345 40-Way F GT 150 Unsealed (BK)
Pin	Wire Color	Circuit No.	Function
A1	-	2140	Battery Positive Voltage
A2	-	2140	Battery Positive Voltage
A3	-	748	Right Rear Door Ajar Switch Signal
A4	-	1134	Park Brake Switch Signal
A5	-	195	Door Lock Relay Control
A6	-	2265	Power Window Lockout Left Rear Control
A7	-	-	Not Used
A8	-	747	Left Rear Door Ajar Switch Signal
A9-A10	-	-	Not Used
A11	-	1350	Ground
A12	-	1353	RAP Supply Voltage
A13	-	194	Door Unlock Relay Control
A14	-	-	Not Used
A15	-	5168	Power Sounder Enable Signal (BAE)
A16	-	5204	Power Sounder Enable Signal (BAE)
A17	-	-	Not Used
A18	-	992	Ignition 0 Voltage
A19	-	39	Ignition 1 Voltage
A20	-	541	Ignition 3 Voltage
B1-B2	-	-	Not Used
B3	-	690	Courtesy Lamp Supply Voltage
B4	-	2240	Battery Positive Voltage
B5	-	1186	Power Window Switch Right Rear Up Signal
B6	-	2266	Power Window Lockout Right Rear Signal
B7	-	1188	Power Window Switch Right Rear Down Signal
B8	-	1185	Power Window Switch Left Rear Up Signal
B9	-	1187	Power Window Switch Left Rear Down Signal
B10	-	-	Not Used
B11	-	1350	Ground
B12	-	24	Backup Lamp Supply Voltage
B13	-	4440	Battery Positive Voltage
B14	-	1382	LED Dimming Signal
B15	-	543	Accessory Voltage
B16	-	-	Not Used
B17	-	4040	Battery Positive Voltage
B18	-	1732	Inadvertent Power Courtesy Lamps Supply Voltage
B19	-	1977	Rear Fog Lamp Relay and Indicator Control (T79)
B20	-	5362	Inclination Sensor Signal (BAE)

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.