UNDERHOOD Fuse Block
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix and 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Underhood fuse block is located on passenger's side of engine compartment, near battery. See Fig 1.
UNDERHOOD FUSE BLOCK LEGEND
| No. | Fuse/Circuit Breaker | Rating | Description |
|---|---|---|---|
| 1 | COOL FAN 2 Fuse | 30A | COOL FAN Relay, and COOL FAN 2 Relay |
| 2 | - | - | Not Used |
| 3 | HEADLAMPS Fuse | 60A | HVAC HI, PWR MIR, HAZARD, RAP, and PASS-KEY Fuses, and HEADLAMP Circuit Breaker |
| 4 | BATT MAIN 2 Fuse | 60A | R DEFOG, H SEAT/LUM, PWR LOCK, and RADIO AMP Fuses, and SEAT Circuit Breaker |
| 5 | IGN MAIN 1 Fuse | 40A | Ignition Switch, Park/Neutral Position (PNP) Switch, BTSI, DRL, CANISTER VENT, PWR DROP, TURN, SIR, IP-IGN, CRUISE, and ECM Fuses |
| 6 | COOL FAN 1 Fuse | 30A | COOL FAN 1 Relay |
| 7 | BATT MAIN 1 Fuse | 60A | ONSTAR, STOP LAMP, INT LAMP, and CIG LTR Fuses |
| 8 | IGN MAIN 2 Fuse | 60A | Ignition Switch, Retained Accessory Power (RAP) Relay, RADIO, SUNROOF, STR WHL CTRL, WIPER, MALL, MALL PGM, DIC/HVAC, HVAC CTRL Fuses and PWR WDO Circuit Breaker |
| 9 | COOL FAN Relay | - | Cooling Fan - Right 3.1L, Cooling Fan - Left 3.8L (During Low Fan Speed Operation) |
| 10 | COOL FAN 2 Relay | - | Cooling Fan - Right 3.1L, Cooling Fan - Left 3.8L (During High Fan Speed Operation) |
| 11 | IGN MAIN Relay | - | INJ, IGN 1-UH, ELEK IGN, TCC, and A/C Clutch/ABS IGN Fuses |
| 12 | COOL FAN 1 Relay | - | Cooling Fan - Left 3.1L, Cooling Fan - Right 3.8L |
| 13 | A/C CLU Relay | - | A/C Compressor Clutch, and A/C CLU Diode |
| 14 | FUEL PUMP Relay | - | Fuel Pump and Sender Assembly |
| 15 | - | - | Not Used |
| 16 | HORN Relay | - | Horn Assembly |
| 17 | FOG LAMP Relay | - | Fog Lamp - LF, Fog Lamp - RF |
| 18 | INJ Fuse | 10A | Fuel Injectors (1-6) |
| 19 | Spare Fuse | 15A | Not Used |
| 20 | - | - | Not Used |
| 21 | IGN1 - UH Fuse | 15A | Secondary Air Injection (AIR) Pump Relay, Supercharger Boost Control Solenoid, Heated Oxygen sensor (HO2S) Sensor 1, Heated Oxygen Sensor (HO2S) Sensor 2, Evaporative Emissions (EVAP) Canister Purge Solenoid, and Mass Air Flow (MAF) Sensor |
| 22 | Spare Fuse | 30A | Not Used |
| 23 | Spare Fuse | 10A | Not Used |
| 24 | Spare Fuse | 25A | Not Used |
| 25 | ELEK IGN Fuse | 15A | Ignition Control Module (ICM) |
| 26 | Spare Fuse | 20A | Not Used |
| 27 | B/U LAMP Fuse | 10A | Park Neutral Position (PNP) Switch, Body Control Module (BCM), Rear Compartment Lid Release Relay, and Rear Compartment Lid Release Switch |
| 28 | A/C CLU/ABS IGN Fuse | 10A | A/C Clutch Relay, and Electronic Brake Control Module (EBCM) |
| 29 | HVAC/RKE BATT Fuse | 10A | HVAC Control Module, Remote Control Door Lock Receiver (RCDLR), Theft LED, and Driver Information Center (U40) |
| 30 | ALT SENSE Fuse | 10A | Generator |
| 31 | TCC Fuse | 10A | Stop Lamp Switch, 1-2 Shift Solenoid (1-2 SS) Valve, 2-3 Shift Solenoid (2-3 SS) Valve, Torque Converter Clutch (TCC) Solenoid Valve |
| 32 | FUEL PUMP Fuse | 15A | FUEL PUMP Relay |
| 33 | ECM SENSE Fuse | 10A | Powertrain Control Module (PCM) |
| 34 | - | - | Not Used |
| 35 | FOG LP Fuse | 10A | FOG LAMP Relay |
| 36 | HORN Fuse | 15A | Horn Relay |
| 37 | PARK LP Fuse | 20A | Headlamp Switch, Body Control Module (BCM), and Vehicle Interface Unit (VIU) |
| 38 | - | - | Not Used |
| 39 | AIR Fuse | 30A | Secondary Air Injection (AIR) Pump Relay |