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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 539 (Fuses & Circuit Breakers) >> Identification >> UNDERHOOD Fuse Block

UNDERHOOD Fuse Block

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Under hood fuse block is located on passenger's side of engine compartment. See Fig 1.
Fig 1: Locating Underhood Fuse Block
G00103893Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Underhood Fuse Block Components
G00103894Courtesy of GENERAL MOTORS CORP.
UNDERHOOD FUSE BLOCK LEGEND

No. Fuse/Circuit Breaker Rating Description
1 - - Not Used
2 ACCY Fuse 15A Outside Moisture Sensor, Windshield Wiper Switch, Ignition Switch, and Dash Integration Module (DIM)
3 WSW Fuse 30A Windshield Wiper Motor
4 - - Not Used
5 HDLOBML Fuse 10A Low Beam Headlamp - Left
6 HDLOBMR Fuse 10A Low Beam Headlamp - Right
7 Spare 10A -
8 PCM BATT Fuse 10A Powertrain Control Module (PCM) and Theft Deterrent Control Module
9 HDHIBMR Fuse 10A High Beam Headlamp - Right
10 HDHIBML Fuse 10A High Beam Headlamp - Left
11 IGN 1 Fuse 10A Mass Air Flow (MAF) Sensor, EVAP Canister Purge Valve, AIR Pump Relay(s), Secondary Air Injection Bypass Valve Solenoid, and TCC/Cruise Release Switch
12 - - Not Used
13 TRANS Fuse 10A Automatic Transaxle
14 CR CONT Fuse 10A Cruise Control Module and HVAC Sol Relay
15 DIS Fuse 20A Ignition Control Modules
16 INJR 2 Fuse 10A Fuel Injectors 1, 3, and 5 (3.5L V6) Fuel Injectors 2, 3, 5 and 8 (4.0L V8)
17-18 - - Not Used
19 PCM IGN Fuse 10A START 1 Relay and Powertrain Control Module (PCM)
20 OXY SEN Fuse 10A Heated Oxygen Sensors
21 INJR 1 Fuse 10A Fuel Injectors 2, 4 and 6 (3.5L V6)
Fuel Injectors 1, 4, 6 and 7 (4.0L V8)
22 AUX PWR Fuse 20A Accessory Power Outlet
23 C/LTR Fuse 20A Cigar Lighter
24 FOG/DRL Fuse 15A DRL and FOG LP Relays
25 HORN Fuse 15A HORN Relay
26 AC CLU Fuse 15A A/C Clutch Relay
27 HDLP HI BM Relay - HDHIBML and HDHIBMR Fuses, Headlamp Switch, and Dash Integration Module (DIM)
28 HDLP LO BM Relay - HDLOBML and HDLOBMR Fuses, Headlamp Switch, and Dash Integration Module (DIM)
29 FOG LP Relay - Front Fog Lamps, Dash integration Module (DIM), and Ignition Switch
30 DRL Relay - High Beam Headlamp - Left and Dash Integration Module (DIM)
31 HORN Relay - Horn, Dash Integration Module (DIM), and Turn Signal/Multifunction Switch
32 A/C CLU Relay - A/C Compressor Clutch, Dash Integration Module (DIM), Ignition Switch, and PCM
33 HVAC SOL Relay - Dash Integration Module (DIM) and A/C Orifice Solenoid
34 ACCY Relay - WSW and ACCY Fuses
35 AIR PUMP Relay (Buick/Pontiac Only) - -
36 START 1 Relay - Starter Solenoid and PCM
37 COOLFAN 1 Relay - Cooling Fan - Right and PCM
38 IGN 1 Relay - DIS, OXY SEN, IGN 1, INJ 1, INJ 2, TRANS, PCM IGN, and CR CONT Fuses, Ignition Switch, and Dash Integration Module (DIM)
39 COOLFAN S/P Relay - Cooling Fans and PCM
40 COOLFAN 2 Relay - Cooling Fan - Left
41 START Circuit Breaker 30A START 1 Relay
42 AIR Fuse (Buick/Pontiac Only) 30A -
43 Not Used (w/1 AIR Pump System) - -
43 ABS Fuse (w/2 AIR Pump System) 50A Electronic Brake Control Module (EBCM)
44 ABS Fuse (w/1 AIR Pump System) 50A Electronic Brake Control Module (EBCM)
44 AIR PUMP B Fuse (Oldsmobile w/2 AIR Pump System Only) 50A AIR Pump Relay B
45 AIR PUMP A Fuse (Oldsmobile w/2 AIR Pump System Only) 50A AIR Pump Relay A
45 AIR PUMP Fuse (Oldsmobile w/1 AIR Pump System Only) 50A AIR Pump Relay
46 COOL FAN 1 Fuse 30A COOLFAN 1 Relay
47 COOL FAN 2 Fuse 30A COOLFAN 2 Relay and COOLFAN S/P Relay
48-52 Spare Fuses - -
53 Fuse Puller - -