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Buick Lucerne CXS 2007 – 2007 ELECTRICAL Fuses Circuit Breakers Lucerne

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Buick Lucerne CXS 2007 - 2007 ELECTRICAL Fuses & Circuit Breakers - Lucerne


Buick Lucerne CXS 2007 - 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 CXS 2007 - FUSIBLE LINKS


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

Buick Lucerne CXS 2007 - Component Locations - Repairing Fusible Links https://portal-diagnostov.com/license.html
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Fig. 1: Buick Lucerne CXS 2007 - Component Locations - Repairing Fusible Links


Buick Lucerne CXS 2007 - REAR FUSE BLOCK


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

Buick Lucerne CXS 2007 - Component Locations - Identifying Instrument Panel Fuse Box Components https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file

Fig. 2: Buick Lucerne CXS 2007 - Component Locations - Identifying Instrument Panel Fuse Box Components


Buick Lucerne CXS 2007 Fuse Block - Rear

No. Fuse Rating Description
JC1 HVAC BLWR Fuse 40A Blower Motor Control Module
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 HTD STR Fuse 15A Heated Steering Wheel
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 - Not Used
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 CXS 2007 - UNDERHOOD FUSE BLOCK


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

Buick Lucerne CXS 2007 - Component Locations - Identifying Underhood Fuse Block Components https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file

Fig. 3: Buick Lucerne CXS 2007 - Component Locations - Identifying Underhood Fuse Block Components


Buick Lucerne CXS 2007 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 (NU6)
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 (NU6)
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 (NU6)
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 - Secondary Air Injection (AIR) Check Valve (NU6)
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