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Pontiac Montana (1999) Fuse Box Diagram

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

In this article you will find a description of fuses and relays Pontiac, 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: 1999

Instrument Panel Fuse Block

The instrument panel fuse block is located at the right end of the instrument panel, on the passenger’s side of the vehicle.

Pontiac Montana - fuse box - instrument panel

Fuses Usage
HEADLAMP Daytime Running Lamps (DRL) Control Module, Headlamp and Instrument Panel Dimmer Switch
PWR WDO Front Power Windows
PWR/HEATED SEAT PSD Six-Way Power Seats and Rear Side Door Actuator Motor
FRT HVAC HI BLWR Blower Motor Hi Speed Relay Module
SWC BACKLIGHT Steering Wheel Radio Control Switches (Illumination)
ELEC PRNDL  Instrument Cluster to PRNDL Indicators
PWR MIRROR Power Remote Control Mirror Switch
CRUISE Cruise Control Module, Switch and Release Switch
PWR QTR VENT Interior Lamps and Multifunction Switch (Power Vent Switch)
FRT WPR/WSHR Windshield Wiper/Washer Motor and Switch
PASS KEY PASS-Key III System
PWR LOCK Body Control Module (BCM)
HTD MIRROR Heated Mirrors
RH T/LP Not Used
RR FOG LP Not Used
CIGAR/DLC Cigarette Lighter and Data Link Connector (DLC)
T/SIG Turn Signal Switch
RR HVAC Rear Blower Motor, Rear Heater-A/C Control, Temperature Door Actuator (Rear)
SWC ACCY Steering Wheel Radio Control Switches
HAZARD Turn Signal Switch
RR PWR SCKT Rear Electric Accessory Plug Housing
DRL Daytime Running Lamps (DRL) Control Module
LH T/LP Not Used
RR DEFOG Rear Window Defogger Relay, Heated Mirrors
FRT PWR SCKT Front Electric Accessory Plug Housing
SIR Inflatable Restraint Control Module
FRT HVAC LOW/MED BLWR Heater-A/C Control
MALL/RADIO/ DIC BCM, Driver Information Display, Rear Seat Audio, ELC Sensor and Relay
STOP LAMP Stoplamp Switch
ABS MOD BATT Electronic Brake Control Module/Electronic Brake Traction Control Module (EBCM/EBTCM)
CAN VENT SOL Evaporative Emissions (EVAP) Canister Vent Solonoid Valve
ELC Electronic Level Control (ELC) Air Compressor and ELC Relay, Trailer Harness
CTSY LAMP BCM
IGN 1  BCM, Electronic Brake Control Indicator Lamp Driver Module, Instrument Panel Cluster, Rear Side Door Actuator Control Module, Rear Window Wiper/Washer and Multifunction Switch (Fog Lamp Switch/Traction Control Switch) and Stoplamp/Torque Converter Clutch (TCC) Switch
RR WPR WSHR  Rear Window Wiper Motor, Rear Window Wiper/Washer and Multifunction Switch (Rear Window Wiper/Washer Switch)
LH HEADLP LOW Not Used
LH HEADLP HIGH Not Used
ABS/TCS IGN Electronic Brake Control Module/Electronic Brake Traction Control Module (EBCM/EBTCM)
ABS SOL LH and RH Front Brake Solenoid Valve
HVAC/DRL Air Inlet Actuator, DRL Control Module, Heater-A/C Control, Temperature Door Actuator (Front) and Rear Window Defogger Relay
BCM PRGRAM Body Control Module (BCM)
RH HEAD LP LOW Not Used
RH HEAD LP HIGH Not Used
PCM/ABS IGN MAIN Relay and PCM

Underhood Fuse Block

This fuse block is located in the engine compartment, in front of the windshield washer fluid reservoir.

Pontiac Montana - fuse box - engine compartment

Maxi Fuses Usage
1 COOL FAN 2 Coolant Fans
2 Not Used
3 HEADLAMPS Circuit Breakers: FRT HVAC HI BLWR, and HEADLAMP Fuses (Instrument Panel): HAZARD and STOPLAMP
4 BATT MAIN 2 Circuit Breaker: PWR SEAT/PSD. Fuses (Instrument Panel): ELC and RR DEFOG
5 IGN MAIN 1 Ignition Switch to Fuses (Instrument Panel): ABS/TCS IGN, CRUISE, DRL, ELEC PRNDL, IGN 1, PSD, SIR, T/SIG and PCM [IGN MAIN Relay (Underhood Electrical Center Fuses: A/C CLU, ELEK IGN, IGN 1-U/H, INJ, TCC)]
6 COOL FAN 1 Coolant Fans
7 BATT MAIN 1 Fuses (Instrument Panel): ABS MOD BATT, CIGAR/DLC, CTSY LAMP, FRT PWR SCKT, PWR LOCK, PWR MIRROR and RR PWR SCKT
8 -IGN MAIN 2 Ignition Switch to Fuses (I/P): BCM PRGRM, FRT HVAC LOW/MED BLWR, FRT WPR/WSHR, HVAC/DRL, MALL/RADIO/DIC, PWR QRT VENT, RR HVAC, RR WPR/WSHR. SWC ACCY and PWR WDO Circuit Breaker

 

Mini relays Usage
9 COOL FAN RH FAN 1, LH FAN 2
10 COOL FAN 2 LH FAN 2
11 IGN MAIN FUSES: A/C CLU, IGN 1-U/H, INS, ELEK IGN, TCC
12 COOL FAN 1 RH FAN 1, LH FAN 2

 

Micro relays Usage
13 A/C CLU A/C Clutch
14 FUEL PUMP Fuel Pump
15 F/PMP SPD CONT Not Used
16 HORN Horn
17 FOG LAMP Left Fog Lamp, Right Fog Lamp, Fog Lamp Indicator

 

Mini fuses Usage
18 INJ Fuel Injectors 1-6
19 SPARE Not Used
20 Not Used
21 IGN1-UH Evaporative Emissions (EVAP) Canister Purge Valve, Heated Oxygen Sensors 1 and 2, Mass Air Flow (MAF) Sensor
22 SPARE Not Used
23 SPARE Not Used
24 SPARE Not Used
25 ELEK IGN Ignition Control Module (ICM)
26 SPARE Not Used
27 B/U LAMP Transaxle Range Switch to Back-up Lamps
28 A/C CLU A/C Clutch Relay to A/C Compressor Clutch Oil
29 RADIO Driver Information Display, Heater A/C Control, Radio, Rear Side Door Actuator Control Motor, Remote Control Door Lock Receiver (RCDLR), Security Indicator Lamp and Theft-Deterrent Shock Sensor
30 ALT SENSE Generator
31 TCC Automatic Transaxle (Torque Converter Clutch Solenoids) Stoplamp Switch to PCM
32 FUEL PUMP Fuel Pump Relay
33 ECM SENSE Powertrain Control Module (PCM)
34 Not Used
35 FOG LP Fog Lamp Relay
36 HORN Horn Relay
37 PARK LP Daytime Running Lamps (DRL) Control Module, Headlamps and Instrument Panel Dimmer Switch Theft-Deterrent Relay to Headlamp
38 Not Used
39 SPARE Not Used
40 Mini Fuse Puller

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

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