The Isuzu Ascender, a midsize SUV, provides fuse box diagrams for the 2006 and 2007 models, detailing where the fuse panels are located inside the vehicle. It also explains the function of each fuse (fuse layout) and relay.
Table of Contents
Cigar lighter (power outlet) fuses in the Isuzu Ascender are the fuse #13 (“LTR” – Cigar Lighter) in the Engine Compartment Fuse Box, and fuse #46 (“AUX PWR 1” – Auxiliary Power Outlets) in the Rear Underseat Fuse Box.
Engine Compartment
| Fuse Number | Name | Fuse Amp | Description |
|---|---|---|---|
| 1 | ECAS | 30 | Air Suspension Compressor Assembly |
| 2 | HI HEADLAMP-RT | 10 | Headlamp – High Beam – Right |
| 3 | LO HEADLAMP-RT | 10 | Head lamp – Low Beam – Right |
| 4 | TRLR BCK/UP | 10 | Trailer Connector |
| 5 | HI HEADLAMP-LT | 10 | Headlamp- High Beam – Left |
| 6 | LO HEADLAMP-LT | 10 | Headlamp – Low Beam – Left |
| 7 | WPR | 20 | HEADLAMP WPR Relay, REAR/WPR Relay |
| 8 | ATC | 30 | Transfer Case Encoder .Motor, Transfer Case Shift Control Module |
| 9 | WSW | 15 | WSW Relay |
| 10 | PCM B | 20 | FUEL PUMP Relay, Powertrain Control Module (PCM) |
| 11 | FOG LAMP | 15 | FOG LAMP Relay |
| 12 | STOP LAMP | 25 | Stop Lamp Switch |
| 13 | LTR | 20 | Cigar Lighter, Data Link Connector (DLC) |
| 15 | EAP | 15 | 2006: Auxiliary Water Pump Relay 1, EAP Relay, Electronic Adjustable Pedals (EAP) Relay 2007: EAP Relay, Electronic Adjustable Pedals (EAP) Relay |
| 16 | TBC IGN1 | 10 | Body Control Module (BCM) |
| 17 | CRNK | 10 | Powertrain Control Module (PCM) |
| 18 | AIR BAG | 10 | Inflatable Restraint Front Passenger Pressure System (PPS) Module, Inflatable Restraint Sensing and Diagnostic Module (SDM), Rollover Sensor |
| 19 | ELEC BRK | 30 | Trailer Brake Wiring |
| 20 | FAN | 10 | FAN Relay |
| 21 | HORN | 15 | HORN Relay |
| 22 | IGN E | 10 | A/C Relay, Headlamp l eveling Actuators, Headlamp Switch, Inside Rearview Mirror, Instrument Panel Cluster (IPC), Park/Neutral Position (PNP) Switch, Stop Lamp Switch, Turn Signal/Multifunction Switch |
| 23 | ETC | 10 | Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor, Powertrain Control Module (PCM) |
| 24 | IPC/DIC | 10 | Instrument Panel Cluster (IPC) |
| 25 | BTSI | 10 | Automatic Transmission Shift Lock Actuator, Stop Lamp Switch |
| 26 | TCM CNSTR | 10 | Evaporative Emission (EVAP) Canister Purge Solenoid, Evaporative Emission (EVAP) Canister Vent Solenoid, Theft Deterrent Alarm |
| 27 | BCK/UP | 15 | EAP (Relay), Park/Neutral Position (PNP) Switch |
| 28 | PCM I | 15 | Fuel Injectors, Ignition Coils, Powertra in Control Module (PCM) |
| 29 | O2 SNSR | 10 | Heated Oxygen Sensor (H02S) 1/2 |
| 30 | A/C | 10 | A/C Relay |
| 31 | TBC I | 10 | Body Control Module (BCM), Theft Deterrent Alarm, Theft Deterrent Control Module |
| 32 | TRLR | 30 | Trailer Connector |
| 33 | ASS | 60 | Electronic Brake Control Module (EBCM) |
| 34 | IGN A | 40 | Ignition Switch – ACCY/RUN/START, RUN, START BUS |
| 35 | BLWR | 40 | Blower Motor Control Module, Blower Motor Resistor Assembly |
| 36 | IGN B | 40 | Ignition Switch – ACCY/RUN, RUN/START BUS |
| 37 | HEADLAMP WPR (Relay) | — | Headlamp Washer Fluid Pump |
| 38 | REAR/WPR (Relay) | — | Rear Window Washer Fluid Pump |
| 39 | FOG LAMP (Relay) | — | Front Fog Lamps |
| 40 | HORN (Relay) | — | Horn Assembly |
| 41 | FUEL PUMP (Relay) | — | Fuel Pump and Sender Assembly |
| 42 | WSW (Relay) | — | Windshield Washer Fluid Pump |
| 43 | HI HEADLAMP (Relay) | — | HI HEADLAMP- LT, HI HEADLAMP-RT |
| 44 | A/C (Relay) | — | A/C Compressor Clutch Assembly |
| 45 | FAN (Relay) | — | Cooling Fan |
| 46 | HDM (Relay) | — | LO HEADLAMP- L T, LO HEADLAMP-RT |
| 47 | STRTR (Relay) | — | Starter |
| 48 | I/P BATT | 125 | Fuse Block- Rear – B+ Bus |
| 49 | EAP (Relay) | — | Electronic Adjustable Pedals (EAP) Switch |
| 50 | TRLR RT TRN | 10 | Trailer Connector |
| 51 | TRLR LT TRN | 10 | Trailer Connector |
| 52 | HAZRD | 25 | Turn Signal/Hazard Flasher Module |
| 53 | HDM | 15 | HDM Relay |
| 54 | AIR SOL | 15 | AIR SOL Relay, Secondary Air Injection (AIR) Pump Relay |
| 55 | AIR SOL (Relay) | — | Secondary Air Injection (AIR) Solenoid |
| 56 | AIR PUMP | 60 | Secondary Air Injection (AIR) Pump Relay |
| 57 | PWR/TRN (Relay) | — | ETC, O2 SNSR |
| 58 | VSES | 60 | Electronic Brake Control Module (EBCM) |
| 59 | RVC | 15 | 2007: Regulated Voltage Control Module |
Rear Underseat Fuse Box
| Fuse Number | Name | Fuse Amp | Description |
|---|---|---|---|
| 1 | RT DOORS (Circuit Breaker) | 25 | Front Passenger Door Module (FPDM), Window Switch- RR |
| 2 | LT DOORS (Circuit Breaker) | 25 | Driver Door Module (DDM), Window Switch – LR |
| 3 | LGM #2 | 30 | Liftgate Module (LGM) |
| 4 | TBC 3 | 10 | Body Control Module (BCM) |
| 5 | RR FOG | 10 | Tail Lamp Circuit Board -Left |
| 6 | — | — | Not Used |
| 7 | TBC 2 | 10 | Body Control Module (BCM) |
| 8 | SEATS (Circuit Breaker) | 30 | Lumbar Adjuster Switches, Memory Seat Module – Driver, Seat Adjuster Switches |
| 9 | RR WIPER (Circuit Breaker) | 15 | Rear Window Wiper Motor |
| 10 | DDM | 10 | Driver Door Module (DDM) |
| 11 | AMP | 20 | Audio Amplifier |
| 12 | PDM | 20 | Front Passenger Door Module (FPDM) |
| 13 | RR HVAC | 30 | 2006: Blower Motor- Auxiliary, Blower Motor Control Processor – Auxiliary 2007: Not Used |
| 14 | LR PARK | 10 | License Lamps, Tail Lamp Circuit Board- Left |
| 15 | — | — | Not Used |
| 16 | VEH CHMSL | 10 | Center High Mounted Stop Lamp (CHMSL) |
| 17 | RR PARK | 10 | Clearance Lamps, Tail Lamp Circuit Board – Right |
| 18 | LOCK (Relay) | — | Rear Door Latch Assemblies |
| 19 | LGM/DSM | 10 | Cobra Intrusion Sensor Module, Inclination Sensor, Liftgate Module (LGM), Memory Seat Module- Driver |
| 21 | LOCKS | 10 | LOCK Relay, UNLOCK Relay |
| 22 | RAP (Relay) | — | Quarter Glass Switches, Sunroof Motor |
| 23 | — | — | Not Used |
| 24 | UNLOCK (Relay) | — | Rear Door Latch Assemblies |
| 25 | — | — | Not Used |
| 26 | — | — | Not Used |
| 27 | OH BATT/ONSTAR | 10 | Digital Video Disc (DVD) Player, Garage Door Opener, Vehicle Communication Interface Module (CIM) |
| 28 | SUNROOF | 20 | Sunroof Motor |
| 29 | RAIN | 10 | 2006: Outside Moisture Sensor 2007: Not Used |
| 30 | PARK LP (Relay) | — | F PARK, LR PARK. RR PARK, TR PARK |
| 31 | TBC ACC | 3 | Body Control Module (BCM) |
| 32 | TBC 5 | 10 | Body Control Module (BCM) |
| 33 | FRT WPR | 25 | Windshield Wiper Motor |
| 34 | VEH STOP | 15 | Engine Control Module (ECM), Powertrain Control Module (PCM), Tail Lamp Circuit Board -Left/Right, Trailer Brake Wiring, Transmission Control Module (TCM) |
| 35 | TCM | 10 | Transmission Control Module (TCM) |
| 36 | HVAC B | 10 | HVAC Control Module, HVAC Control Module -Auxiliary |
| 37 | F PARK | 10 | Marker Lamps, Park Lamps, Park/Turn Signal Lamps, Turn Signal/Multifunction Switch |
| 38 | LT TURN | 10 | Driver Door Module (DDM), Instrument Panel Cluster (I PC), Marker Lamp, Park/Turn Signal Lamp- LF, Tail Lamp Circuit Board- Left, Turn Signal Lamp – LF |
| 39 | HVAC I | 10 | Air Temperature Actuators, Console Mode Actuator- Auxiliary, Defrost Actuator, HVAC Control Module, HVAC Control Module- Auxiliary, Mode Actuator, Recirculation Actuator, Steering Wheel Speed/Position Sensor, Turn Signal/Multifunction Switch |
| 40 | TBC 4 | 10 | Body Control Module (BCM) |
| 41 | RADIO | 15 | Digital Radio Receiver, Radio |
| 42 | TR PARK | 10 | Trailer Connector |
| 43 | RT TURN | 10 | Front Passenger Door Module (FPDM), Instrument Panel Cluster (IPC), Marker Lamp- RF, Park/Turn Signal Lamp- RF, Tail Lamp Circuit Board- Right, Turn Signal Lamp- RF |
| 44 | HVAC | 30 | HVAC Control Module |
| 45 | RR FOG LP (Relay) | — | RR FOG |
| 46 | AUX PWR 1 | 20 | Auxiliary Power Outlets |
| 47 | IGN 0 | 10 | Automatic Transmission, Automatic Transmission Shift Lock Actuator, Engine Control Module (ECM). Powertrain Control Module (PCM), Theft Deterrent Control Module |
| 48 | 4WD | 15 | Air Suspension Compressor Assembly, Auxiliary Water Pump Relay 1, Front Axle Actuator, Transfer Case Shift Control Switch |
| 49 | — | — | Not Used |
| 50 | TBC IG | 3 | Body Control Module (BCM) |
| 51 | BRAKE | 10 | Electronic Brake Control Module (EBCM) |
| 52 | TBC RUN | 3 | Body Control Module (BCM) |
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Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.