Isuzu Ascender (2004) – fuse box diagram
Year of production: 2004
Fuses box

| No | Fuse name | A | Description |
| 1 | RT DOORS Circuit Breaker | 25 | Front Passenger Door Module (FPDM), Right Rear Window Switch |
| 2 | LT DOORS Circuit Breaker | 25 | Driver Door Module (DDM), Left Rear Window Switch |
| 3 | LGM#2 | 30 | Liftgate Module |
| 4 | TBC 3 | 10 | Body Control Module (BCM) |
| 5 | RR FOG | 10 | Rear Fog Lamp |
| 6 | — | — | — |
| 7 | TBC 2 | 10 | Body Control Module (BCM) |
| 8 | SEATS Circuit Breaker | 30 | Memory Seat Module-Driver, Memory Seat Module – Front Passenger |
| 9 | RR WIPER | 15 | Rear Wiper |
| 10 | DDM | 10 | Driver Door Module (DDM) |
| 11 | AMP | 20 | Audio Amplifier |
| 12 | PDM | 10 | Front Passenger Door Module (FPDM} |
| 13 | RR HVAC | 30 | Blower Motor-Auxiliary, Blower Motor Control Processor -Auxiliary |
| 14 | LR PARK | 10 | License Lamps and Left Tail Lamp |
| 15 | — | — | — |
| 16 | VEH CHMSL | 10 | Center High-Mounted Stop Lamp (CHMSL) |
| 17 | RR PARK | 10 | Right Tail Lamp Assembly |
| 19 | LGM/DSM | 10 | Lift Gate Module/ Drivers Door Module |
| 20 | VENT WDO | 20 | RAP (Retained Accessory Power) Relay |
| 21 | LOCKS | 10 | LOCK Relay and UNLOCK Relay |
| 23 | — | — | — |
| 25 | — | — | — |
| 26 | — | — | — |
| 27 | ON BATT/ONSTAR | 10 | Digital Video Disc {DVD) Player, Garage Door Opener, Voice Recorder |
| 28 | SUNROOF | 20 | Sunroof Module |
| 29 | RAIN | 10 | Digital Video Disc {DVD) Player, Outside Moisture Sensor |
| 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 | Powertrain Control Module (PCM }. Tail Lamps, Throttle Actuator Control (TAC) Module |
| 35 | — | — | — |
| 36 | HVAC B | 10 | HVAC Control Module~ HVAC Control Module-Auxiliary |
| 37 | F PARK | 10 | Front Park and Tum SignaJ lamps, Marker Lamps, Tum Signal/Multifunction Switch |
| 38 | LT TURN | 10 | Driver Door Module (DDM), Instrument Panel Cluster, Marker Lamp-Left, Park/Turn Signal Lamp-LF, Tail Lamp Assembly-Left |
| 39 | HVAC I | 10 | Air Temperature Actuator-Left. Air Temperature Actuator-Right, Conso1e Mode Actuator, Defrost Actuator, HVAC Control Module, Mode Actuator, Recirculation Actuator, Traction Control Switch, Tum Signal/Multifunction Switch |
| 40 | TBC 4 | 10 | Body Control Module (BCM) |
| 41 | RADIO | 15 | Radio |
| 42 | TR PARK | 10 | Trailer Connector |
| 43 | RT TURN | 10 | Front Passenger Door Module (FPDM) Instrument Panel Cluster, Marker Lamp-Right, Park/Turn Signal Lamp-RF, Tail Lamp Assembly-Right |
| 44 | HVAC | 30 | HVAC Control Module |
| 46 | AUX PWR 1 | 20 | Auxiliary Power Outlet-Console, Auxiliary Power Uutlet-Front |
| 47 | IGN 0 | 10 | A/T Shift Lock Actuator, Automatic Transmission, Powertrain Control Module (PCM), and (export only with BAE) Theft Deterrent Control Module |
| 48 | 4WD | 15 | Automatic Level Control (ALC) Compressor, Front Axle Actuator, Transfer Case Shift Control Switch |
| 49 | — | — | — |
| 50 | TBC IG | 3 | Body Control Module (BCM) |
| 51 | BRAKE | 10 | Electronic Brake Control Module (EBCM) |
| 52 | TBC RUN | 3 | Body Control Module (BCM) |
Fuse box
| No | Fuse name | A | Description |
| 1 | RT DOORS Circuit Breaker | 25 | Front Passenger Door Module (FPDM), Right Rear Window Switch |
| 2 | LT DOORS Circuit Breaker | 25 | Driver Door Module (DDM), Left Rear Window Switch |
| 3 | LGM #2 | 30 | Liftgate Module |
| 4 | TBC 3 | 10 | Body Control Module (BCM) |
| 5 | RR FOG | 10 | Rear Fog Lamp |
| 6 | — | — | — |
| 7 | TBC 2 | 10 | Body Control Module (BCM) |
| 8 | SEATS Circuit Breaker | 30 | Memory Seat Module-Driver, Memory Seat Module – Front Passenger |
| 9 | RR WIPER | 15 | Rear Wiper |
| 10 | DDM | 10 | Driver Door Module (DDM) |
| 14 | COILS | 10 | HDLP-HI Relay, High-beam Headlamps |
| 15 | — | — | — |
| 16 | TBC IGN 1 | 10 | Body Control Module (BCM) |
| 17 | CRANK | 10 | Powertrain Control Module |
| 18 | SIR | 10 | Inflatable Restraint Sensing and Diagnostic Module (SDM) |
| 19 | ELEK BRK | 30 | Trailer Brake Wiring |
| 20 | FAN | 10 | FAN Relay (Fan Driver Module) |
| 21 | HORN | 15 | HORN Relay |
| 22 | IGN E | 10 | AIC Relay~ Headlamp Leveling Actuators, Headlamp Leveling Switch, IGN 1 Relay, Inside Rearview Mirror, Instrument Panel Cluster, Inverting Driver Module, Park/Neutral Position (PNP) Switch, Stop Lamp Switch, Traction Control Switch, Turn Signal/Multifunction Switch |
| 23 | ETC | 10 | Powertrain Control Module (PCM) |
| 24 | IPC/DIC | 10 | Instrument Panel Cluster (IPC) |
| 25 | BTSI | 10 | Stop Lamp Switch, A/T Shift Lock Actuator |
| 26 | ENG I | 10 | EVAP Canister Purge Solenoid, EVAP Canister Vent Solenoid |
| 27 | BACK UP | 15 | Park/Neutral Position (PNP) Switch |
| 28 | PCM I | 15 | Fuel Injectors, Ignition Coils, Powertrain Control Module (PCM) |
| 29 | 02 | 10 | Heated Oxygen Sensors |
| 30 | A/C | 10 | AIC Relay |
| 31 | TBC I | 10 | Body Control Module (BCM), and (BAE Only) Theft Deterrent Alarm and Theft Deterrent Module |
| 32 | TRAILER | 30 | Trailer Connector |
| 33 | ABS | 60 | Electronic Brake Control Module (EBCM) |
| 34 | IGN A | 40 | Starter Relay, Ignition Switch |
| 35 | BLOWER | 40 | Blower Motor Control Processor (CJ2), Blower Motor Resistor Assembly (CJ3) |
| 36 | IGN B | 40 | Ignition Switch |
| 37 | TRLR RT TURN | 10 | Trailer Connector |
| 38 | TRLR LT TURN | 10 | Trailer Connector |
| 39 | FLASH | 25 | Turn Signal/Hazard Flasher Module |
| 40 | I/P BATT | 125 | Fuse Block-Rear |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

