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Cadillac Commercial Chassis (1994) Fuse Box Diagram

avatar Jonathan Yarden Mar 25, 2021 · 5 min. read

In this article you will find a description of fuses and relays Cadillac, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 1994

Underhood (U/H) electrical center

Cadillac Commercial Chassis – fuse box diagram – engine compartment

Maxi fuse Name Description
1 BODY 1 60 amp power to PWR SEAT Circuit Breaker #3 30 amp, I/P Fuse Block, #36¡TRK PDWN 15amp, #37¡HAZRD LTS 20 amp, #39 PWR LUMB 20 amp, #40 HTD SEAT 20 amp, RR
DHG Circuit Breaker #4 30 amp, #44-STOP LTS 20 amp, #45-PWRLK 20 amp
2 BODY 2 50 amp power to I/P fuse Block #21-RAP BAT 25 amp, #22 HVAC MDL 25 amp, #26 ELC SENS 20 amp, #27 D/INT LTS 15 amp, #28 FRT CIG 10 amp, #29 RRClG 20 amp,  #30 EBTCM 25 amp, #33 HVAC BAT 10 amp, #34 CCM BAT 10 amp, #35 PWR MIR 10 amp, #2 Circuit Breaker RAP RLY 30 amp.
3 IGN1 50 amp power to I/P Concealed Fuse 5 amp, I/P Fuse Block; #6 T/SIG 15 amp, #7 EBTCM/TPS 10 amp, #8 RAP WPR 25 amp, #9 RADIO 10 amp, #10 WIPER 25 amp, #11 I/P INDC 10 amp, #12 ELC IGN 1 10 amp, #13 CHIME 10 amp, #14 CCMIGN1 10 amp, #15 AIR BAG 15 amp, #24 STARTER U/H Electrical Center, #15 PCM/IGN 10 amp, #16 INJ 1 10 amp, #19 RAP PWR 30 amp, #20 A/C COMP 10 amp, #25 HVAC IGN 10 anlp
4 IGN3 40 amp power to I/P Fuse Block; #16-G£N 10 amp, #17 MEM Seat 1O amp, #18 CCM IGN 3 10 amp, #19 RAP PWR 30 amp, #20 A/C COMP 10 amp, #25 HVACIGN 10 amp
5** ABS/TC 60 amp power to ABS/TC Brake Pressure Modulator Valve (BPMV)
6 — —
7 SCNDRV CLG FAN 40 amp pawer to Secondary Engine Cooling fan Motor Control Relay
8 PRIMARY CLG FAN 40 amp power to Primary engine Cooling Fan Motor Control Relay
9 LEVEL CONTROL 10 amp power to Automatic Level Control Air Compressor
10 ENGINE 30 amp power to U/H Electrical Center; #13 PCM/Fuel Pump 15 amp, #14-Air Pump 20 amp
11 HEADLIGHTS/HORNS 50 amp power to I/P Fuse Block Circuit Breaker #5 HDLTS 20 amp, Fuse #31 Park LTS 20 amp, #32-Horn 25 amp
12 — —
Mini Fuse Name Description
13 PCM/FUEL PUMP 15 amp power to Fuel Pump Relay, Fuel Pump/Engine Oil Pressure Indicator Switch, Powertrain Control Module (PCM)
14 AIR PUMP 20 amp power to Secondary Air Injeection (AIR) Pump Relay
15 PCM/IGN 10 amp power to Powertrain Control Module (PCM), Electronic Transmission Ignition Coil
16 INJ1 10 amp power to fuel Injectors Cylinders 1-4, 6-7
17 EMISSIONS 10 amp power to Exhaust Gas Recirculation (EGA), Vacuum Control Signal Solenoid Valve, Secondary Air Injection (AIR) Pump Relay (coil), Mass Air Flow (MAF) sensor, Bank 1 (left) Heated Oxygen Sensor (H02S), Bank 2 (right) Heated Oxygen Sensor (H02S), Evaporative Emission (EVAP) Canister Purge Solenoid Valve
18 INJ2 10 amp power to fuel Injectors Cylinders 2-3, 5-8
Relay Name Description
A A/C COMP RELAY A/C Compressor Relay
B AIR PUMP RELAY Secondary Air lnjection (AIR) Pump Relay

Instrument panel

Cadillac Commercial Chassis – fuse box diagram – instrument panel

Fuse Name Description
1 MIR DEFG  Outside Rearview Mirror Defogger 
2  —  — 
3  —  — 
4  —  — 
5  —  — 
6  T/SIG  Park/Neutral Position and Back-up Lamp switch, Turn Signal Lamp flasher 
7**  EBTCM/TPS  Electronic Brake and Traction Control Module (EBTCM), Throttle Position(TP) Sensor Interface Module 
8  RAP WPR  Component Center (RAP Wiper) Relay 
9 RADIO  Radio Receiver 
10  WIPER  Windshield Wiper/Washer Switch 
11 LP/NDC Inflatable Restrain Diagnostic Energy reserve (with sensor) Module, Instrument Panel Cluster 
12 ELC IGN 1 Automatic Level Control Sensor
13 CHIME Warning Alarm, Cruise Control Release Switch, Inside Rearview Mirror (DDB), Rear Window Defogger Relay, Catalytic Converter Temperature Alarm (Japan only)
14 CCM IGN 1 Central Control Module (CCM)
15 AIR BAG Inflatable Restraint Diagnostic Energy Reserve (with sensor) Module (SDM)
16 GEN Engine Electrical Generator, Secondary Electrical Engine Cooling Fan Relay
17 MEM SEAT Driver’s Seat Adjuster Memory Module, Heated Driver Seat Control Module, Heated Passenger Seat Control Module 
18 CCM IGN 3 Central Control Module (CCM), Remote Control Door Lock Receiver and Theft Deterrent Module
19 RAP PWR  Accessory Time Delay Cut-off (RAP Power) Relay 
20 A/C COMP A/C Compressor Relay, Primary Electrical Engine Cooling Dan Relay
21 RAP BATT Component Center (RAP Wiper) Relay
22 HVAC MDL Blower Motor Control Module
23 TRK REL Rear Compartment Lid Release Switch
24 STARTER Theft Deterrent Relay, Inflatable Restraint Diagnostic Energy Reserve (with sensor) Module (SDM)
25 HVAC IGN Instrument Panel Gauge Cluster, Blower Motor Control Module
26  ELC SENS  Automatic level Control Sensor, Rear Compartment Courtesy Lamp 
27 D/INT LTS Component Center (DIL) Relay
28 FRT CIG Front Cigar Lighter
29 RR CIG Rear Cigar Lighters 
30 EBTCM Electronic Brake and Traction Control Module (EBTCM)
31 PARK LTS  Forward Lamp Wiring Harness Relay 
32 HORN Horn Relay
33 HVAC BAT  Warning Alarm, Heater A/C Control, Instrument Cluster, Engine Oil Level Indicator Control Module, Headlamp Switch, Radio Receiver
34 CCM BAT Central Control Module (CCM)
35 PWR MIR Door Lock Switch, Outside Rearview Mirrors, Power Seatback, lumbar Control
36 TRK PDWN Rear Compartment Lidl Pull-Down Unit
37 HAZARD LTS Hazard Lamp Flasher
38 — —
39 PWR LUMB Power Sear Pneumatic Control Module, Radio Power Antenna Relay
40 HTD SEAT Heated Driver’s Seat Control Module, Heated Passenger Seat Control Module
41 CORNR LTS Instrument Cluster, Radio Control, Cornering Lamps, Turn Signal Switch, Front Park Lamps
42 I/P DIM LTS  Headlamp Switch, Interior Lamps, Dimming
43 TAIL LTS Rear Taillamps, Rear Side Marker Lamps, License lamp
44 STOP LTS Stoplamp Switch
45 PWR LK Door Lock Relay
Name Description
— —
RAP RLY Accessory Time Delay Cut-off (RAP Power) Relay
PWR SEAT Driver’s Power Seat Switch, Passenger Power Seat Switch, Driver’s Power Seat Memory Module
RR DEFG Rear Defogger Relay
HDLTS Headlamp Relay, Daytime Running Lamps (DRL) Module

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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