Buick Lucerne CX 2006 - 2006 ELECTRICAL Fuses & Circuit Breakers - Lucerne

Buick Lucerne CX 2006 - IDENTIFICATION

CAUTION:

When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See PROGRAMMING AND SETUP article in GENERAL INFORMATION before disconnecting battery.

Buick Lucerne CX 2006 - FUSIBLE LINKS

To identify and/or repair fusible links, see Fig. 1.

Fig. 1: Buick Lucerne CX 2006 - Component Locations - Repairing Fusible Links

Buick Lucerne CX 2006 - REAR FUSE BLOCK

NOTE:

Rear fuse block is located in rear of passenger compartment, under rear seat..

Fig. 2: Buick Lucerne CX 2006 - Component Locations - Identifying Instrument Panel Fuse Box Components

Buick Lucerne CX 2006 Fuse Block - Rear

No.	Fuse	Rating	Description
JC1	HVAC BLWR Fuse	40A	FRT HVAC BLWR Relay
JC2	REAR DEFOG Fuse	40A	REAR DEFOG Relay
JC3	ELC CMPRSR Fuse	30A	ELC COMPRSR Relay
F1	AMP Fuse	20A (BASE) 30A (UPLVL)	Amplifier
F2	-	-	Not Used
F3	INT LAMPS Fuse	10A	Body Control Module (BCM)
F4	CTSY/RF TRN Fuse	10A	Body Control Module (BCM)
F5	CNSTR VENT Fuse	10A	Evaporative Emissions (EVAP) Canister Vent Solenoid Valve
F6	MRTD MDL Fuse	25A	Electronic Suspension Control (ESC) Module (F55)
F7	ELC MDL Fuse	10A	Electronic Suspension Control (ESC) Module (FE1), Automatic Level Control (ALC) Compressor (w/FE1, F55)
F8-F9	-	-	Not Used
F10	SWTCH DM Fuse	10A	Body Control Module (BCM)
F11	FUEL PUMP Fuse	20A	FUEL/PUMP Relay
F12	BCM LOGIC Fuse	10A	Body Control Module (BCM)
F13	AIRBAG Fuse	10A	Inflatable Restraint Sensing and Diagnostic Module (SDM)
F14	AUX PWR Fuse	20A	Auxiliary Power Outlet - Front
F15	LT TRN/SIG Fuse	15A	Body Control Module (BCM)
F16	RR TRN/SIG Fuse	15A	Body Control Module (BCM)
F17	S/ROOF Fuse	25A	Sunroof Control Module (CF5)
F18	CHMSL/BCK-UP Fuse	10A	Body Control Module (BCM)
F19	REAR DR LCK Fuse	20A	DR LCK Relay, DR UNLCK Relay
F20	-	-	Not Used
F21	RDO Fuse	15A	Radio
F22	ONSTAR/S-BAND	10A	Vehicle Communication Interface Module (UE1), Digital Radio Receiver (U2K)
F23	AUX PWR Fuse	15A	Cigar Lighter, Auxiliary Power Outlet - Console
F24	DDM Fuse	15A	Driver Door Module (DDM)
F25	PDM Fuse	15A	Front Passenger Door Module (FPDM)
F26	TRUNK RELSE Fuse	10A	Rear Compartment Lid Latch
F27	HTD/COOL Fuse	30A	Climate Control Seat Module - Front (KB6)
F28	ECM/TCM Fuse	15A	Engine Control Module (ECM) (LD8), Transmission Control Module (TCM) (LD8), Powertrain Control Module (PCM) (L26)
F29	RVC SENSE Fuse	10A	Body Control Module (BCM) (CE1)
F30	DRL Fuse	15A	Headlamp Assembly - RF
F31	I/P HARN MDL Fuse	10A	Theft Deterrent Module (TDM), Data Link Connector (DLC), Instrument Panel Cluster (IPC), HVAC Control Module
F32	-	-	Not Used
F33	SPARE Fuse	-	Spare Fuse
F34	STR/WHL/ILLUM Fuse	2A	Steering Wheel Control Switch - Left, Steering Wheel Control Switch - Right
F35	BODY HARN MDL Fuse	10A	Garage Door Opener Transmitter, Inside Rearview Mirror (TQ5), Remote Control Door Lock Receiver (RCDLR)
F36	MSM LOGIC/RF MASSAGE Fuse	10A	Memory Seat Module (MSM) (A45)
F37	OBJ SNSR Fuse	10A	Object Alarm Module (UD7)
F38	-	-	Not Used
F40	SHFTR SOL Fuse	10A	Reverse Lockout Solenoid (A51), Park Switch (A51)
F41	RAP Fuse	10A	Inside Rearview Mirror, Outside Moisture Sensor (CE1), Sunroof Control Module
F42	LT PRK LAMP Fuse	10A	Tail Lamp Assembly - Left, Headlamp Assembly - LF, Tail Lamp Assembly - Left Auxiliary
F43	RT PRK LAMP Fuse	10A	License Lamps, Tail Lamp Assembly - Right, Headlamp Assembly - RF, Tail Lamp Assembly - Right Auxiliary
F44-F45	-	-	Not Used
F46	SPARE Fuse	-	Spare Fuse
F47	HTD/COOL/IGN3 Fuse	10A	Climate Control Seat Module - Front (KB6), Windshield Washer Solvent Heater (XA7), Reverse Lockout Solenoid (A51)
F48	IGN SWTCH Fuse	5A	Ignition Switch
F49	SPARE Fuse	-	Spare Fuse
CB1	MSM/RT FRT PWR SEAT Circuit Breaker	25A	Seat Adjuster Switch - Passenger, Lumbar Adjuster Switch - Passenger
CB2	MSM/LT FRT PWR SEAT Circuit Breaker	25A	Seat Adjuster Switch - Driver, Memory Seat Module (MSM) (A45)
CB3	DR MDL/PWR WNDW Circuit Breaker	25A	Driver Door Module (DDM), Front Passenger Door Module (FPDM), Window Switch - Left Rear Door, Window Switch - Right Rear Door
CB4	-	-	Not Used
F39	121 OHM Resistor	-	Electronic Suspension Control (ESC) Module
R1	RAP Relay	-	S/ROOF, SHFTR SOL, RAP Fuses
R2	PRK LAMP Relay	-	LT PRK LAMP, RT PRK LAMP Fuses
R3	RUN Relay	-	HTD/COOL/IGN3 Fuse
R4	DRL Relay	-	DRL Fuse
R5	FRT HVAC BLWR Relay	-	HVAC Control Module, Blower Motor, Blower Motor Control Module
R6	TRUNK RELSE Relay	-	TRUNK RELSE Fuse
R7	FUEL/PUMP Relay	-	Engine Control Module (ECM) (LD8) Powertrain Control Module (L26), Fuel Pump and Sender Assembly
R8	-	-	Not Used
R9	DR LCK Relay	-	Body Control Module (BCM), Door Latch Assembly - LR, Door Latch Assembly - RR
R10	DR UNLCK Relay	-	Body Control Module (BCM), Door Latch Assembly - LR, Door Latch Assembly - RR
R11-R12	-	-	Not Used
R13	SPARE Relay	-	Spare Relay
R14	REAR DEFOG Relay	-	HVAC Control Module, Rear Window Defogger
R15	ELC COMPRSR Relay	-	Electronic Suspension Control (ESC) Module

Buick Lucerne CX 2006 - UNDERHOOD FUSE BLOCK

NOTE:

Underhood electrical center is located on right side front of engine compartment.

Fig. 3: Buick Lucerne CX 2006 - Component Locations - Identifying Underhood Fuse Block Components

Buick Lucerne CX 2006 Fuse Block - Underhood

No.	Fuse	Rating	Description
F1	SPARE Fuse	20A	Spare Fuse
F2	LT LO BEAM Fuse	20A	Headlamp Assembly - LF
F3	RT LO BEAM Fuse	20A	Headlamp Assembly - RF
F4	AIRBAG IGN 3 Fuse	10A	Inflatable Restraint I/P Module Indicator, Inflatable Restraint Sensing and Diagnostic Module (SDM)
F5	ECM IGN 3 Fuse	10A	Engine Control Module (ECM) (LD8), Powertrain Control Module (PCM) (L26)
F6	TRANS IGN 3 Fuse	10A	Transmission Control Module (TCM) (LD8), Automatic Transmission
F7-F9	SPARE Fuse	-	Spare Fuses
F10	HI BEAM Fuse	10A	Headlamp Assembly - RF
F11	HI BEAM Fuse	10A	Headlamp Assembly - LF
F12	WSW/PUMP Fuse	15A	Windshield Washer Fluid Pump
F13	SPARE Fuse	-	Spare Fuses
F14	HVAC/IPC Fuse	10A	HVAC Control Module, Instrument Panel Cluster (IPC), Recirculation Actuator (C67)
F15	SPARE Fuse	-	Spare Fuses
F16	FOG Fuse	15A	Fog Lamp - LF, Fog Lamp - RF (T96)
F17	HORN Fuse	15A	Horn Assembly
F18	WPR Fuse	25A	WIPER Relay, WIPER HI Relay
F19	LT CRN LAMP Fuse	10A	Headlamp - LF
F20	RT CRN LAMP Fuse	10A	Headlamp - RF
F21	OXY PST Fuse	15A	Heated Oxygen Sensor (HO2S) 2
F22	PWR TRN Fuse	15A	Heated Oxygen Sensor 1 (HO2S) (L26), Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (LD8), Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 (LD8), Evaporative Emission (EVAP) Canister Purge Solenoid Valve
F23	ECM/CRNK Fuse	15A	Engine Control Module (ECM) (LD8), Throttle Actuator Control (TAC) Module (L26)
F24	INJ/COIL Fuse	15A	Fuel Injectors (L26), Fuel Injectors - Odd Bank (LD8), Ignition Coil/Modules - Odd Bank (LD8)
F25	INJ/COIL Fuse	15A	Ignition Control Module (L26), Fuel Injectors - Even Bank (LD8), Ignition Coil/Modules - Even Bank (LD8)
F26	A/C Fuse	10A	A/C Relay
F27	AIR/SOL Fuse	15A	AIR/SOL Relay (LD8)
F28	ECM/TCM Fuse	15A	Spare Fuse
F29-F30	SPARE Fuse	-	Spare Fuses
F31	SPARE Fuse	15A	Spare Fuse
F32	SPARE Fuse	25A	Spare Fuse
JC1	WSW HTD Fuse	60A	Windshield Washer Solvent Heater (XA7)
JC2	FAN 1 Fuse	30A	COOL/FAN 1 Relay
JC3	SPARE Fuse	-	Spare Fuse
JC4	CRNK Fuse	40A	CRNK Relay
JC5	FAN 2 Fuse	30A	COOL/FAN 2 Relay
JC6	ABS2 Fuse	50A	Electronic Brake Control Module (EBCM)
JC7	ABS1 Fuse	60A	Electronic Brake Control Module (EBCM)
JC8	AIR PUMP Fuse	50A	AIR PUMP Relay (LD8)
R1	COOL/FAN 1 Relay	-	Engine Control Module (ECM) (LD8), Powertrain Control Module (PCM) (L26), Cooling Fan - Left
R2	COOL/FAN Relay	-	Engine Control Module (ECM) (LD8), Powertrain Control Module (PCM) (L26)
R3	CRNK Relay	-	Starter Motor
R4	PWR/TRAIN Relay	-	ECM/CRNK, INJ/COIL, PWR TRN, INJ COIL, OXY PST Fuses
R5	SPARE Relay	-	Spare Relay
R6	RUN/CRNK Relay	-	ECM IGN 3, HVAC/IPC, TRANS IGN 3, AIR BAG IGN 3 Fuses
R7	COOL/FAN 2 Relay	-	Engine Control Module (ECM) (LD8) Powertrain Control Module (PCM) (L26), Cooling Fan - Right
R8	WPR Relay	-	WPR HI Relay
R9	AIR PUMP Relay	-	Secondary Air injection (AIR) Pump (LD8), Engine Control Module (ECM) (LD8)
R10	WPR HI Relay	-	Windshield Wiper Motor
R11	A/C Relay	-	Engine Control Module (ECM) (LD8) Powertrain Control Module (PCM) (L26), A/C Compressor Clutch
R12	AIR/SOL Relay	-	Engine Control Module (LD8), Secondary Air Injection (AIR) Check Valve (LD8)
Printed Circuit Board (PCB) Relays - Not Serviceable
-	HORN PCB Relay	-	HORN Fuse
-	TRN/SIG PCB Relay	-	LT CRN LAMP Fuse
-	TRN/SIG PCB Relay	-	RT CRN LAMP Fuse
-	FOG LAMP PCB Relay	-	FOG Fuse
-	HIGH/BEAM PCB Relay	-	Both HIGH BEAM Fuses
-	LO/BEAM PCB Relay	-	LT LO BEAM Fuse, RT LO BEAM Fuse
-	WSH PCB Relay	-	WSW/PUMP Fuse