FUSE PANEL LOCATION
The fuse block is located behind a cover in the dash to the left of the steering column.
Scheme 1
FUSE & CIRCUIT BREAKER IDENTIFICATION
- 1 - HORN/DIM 20 Amp (Yellow) Horn, Cigarette Lighter, Dome & Cargo Lights, Clock
- 2 - T/L CTSY 20 Amp (Yellow) Taillights/Courtesy Lights, Parking Lights, Roof Marker
- 3 - ECM B 10 Amp (Red) (Gasoline Models) Electronic Control Module Memory, TBI Fuel Pump, TBI Auxiliary Tank Selector Switch
- 4 - IGN 20 Amp (Yellow) Rear Defogger, Cruise Control, Engine Overspeed Light, Carbureted & Diesel Auxiliary Fuel Tank Selector Switch
- 5 - GAUGE/IDLE 20 Amp (Yellow) Instrument Cluster, Seat Belt & Lights On Buzzer, TBI Torque Converter Clutch Solenoid, Auxiliary Coolant Fan Relay, TBI Fuel Pump Priming Module, Transmission Kickdown Relay and Solenoid (M40), A.I.R. Divert Solenoid (Carbureted Models), Water in Fuel Sensor & Fuel Heater (Diesel)
- 6 - TURN-B/U 15 Amp (Blue) Directional Signals, Back-Up Lights
- 7 - ECM I 10 Amp (Red) (Gasoline Models) ECM-Ignition Feed (Ing. 1), Vehicle Speed Sensor, TBI Spark Control Module, TBI Fuel Injectors, TBI A.I.R. Divert Solenoid, TBI EGR or E.V.R.V. Solenoid 8 - INST LPS 5 Amp Instrument Panel Lights, Lights On Reminder Module
- 9 - AUX HTR A/C 25 Amp Auxiliary Heater & Air Conditioning
- 10 - HTR A/C 20 Amp (Yellow) Heater & Air Conditioning
- 11 - PWR WDO 30 Amp (Circuit Breaker) Power Windows
- 12 - Not Used (1988-90) DRL 15 Amp (Blue) (1991) Daytime Running Lights (Canada)
- 13 - PWR ACC 30 Amp (Circuit Breaker) Tailgate Power Window, Rear Defogger, Power Door Locks
- 14 - STOP-HAZ 15 Amp (Blue) Hazard Flasher, Seat Belt & Headlight On Buzzer, Stop Lights
- 15 - RADIO 15 Amp (Blue) Radio, Auxiliary Battery Relay, 4WD Indicator Light, Automatic Transmission, Converter Clutch Solenoid (Diesel)
- 16 - WIPER 25 Amp Windshield Wipers, Washer Pump
- 17 - CRANK 3 Amp (Violet) (Gasoline Models) Electronic Control Module, Crank Circuit
- 18 - CHOKE 20 Amp (Yellow) (1988-90) Not Used (1991) Carburetor Choke Heater
BATTERY SPECIFICATIONS
| CAUTION | When battery is disconnected, vehicles equipped with computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section. |
| Year & Engine (1) | Model Number | |
|---|---|---|
| 1988-91 | ||
| 4.3L | (2) | |
| 5.0L | (2) | |
| 5.7L | (2) | |
| 7.4L | (2) | |
| 6.2L Diesel | (2) | |
| (1) All diesel-powered vehicles use 2 batteries. (2) Replace with battery of same group number as shown on original battery label. | ||
| (1) | All diesel-powered vehicles use 2 batteries. |
| (2) | Replace with battery of same group number as shown on original battery label. |
BATTERY SPECIFICATIONS
ANTI-LOCK BRAKE SYSTEM (If Equipped)
The anti-lock brake system contains electronic equipment that can be susceptible to interference caused by improperly installed or high output radio transmitting equipment. Since this interference could cause the possible loss of the anti-lock braking capability, such equipment should be installed by qualified professionals.
On models equipped with anti-lock brake systems, ALWAYS observe the following cautions
- DO NOT attempt to bleed hydraulic system without first referring to the appropriate ANTI-LOCK BRAKE SYSTEM article in the BRAKES Section.
- DO NOT mix tire sizes. As long as tires remain close to the original diameter, increasing the width is acceptable. Rolling diameter must be identical for all 4 tires. Some manufacturers recommend tires of the same brand, style and type. Failure to follow this precaution may cause inaccurate wheel speed readings.
- Use ONLY recommended brake fluids. DO NOT use silicone brake fluids in an ABS-equipped vehicle.
REPLACING BLOWN FUSES
Before replacing a blown fuse, remove ignition key, turn off all lights and accessories to avoid damaging the electrical system. Be sure to use fuse with the correct indicated amperage rating. The use of an incorrect amperage rating fuse may result in a dangerous electrical system overload.
BATTERY WARNING
| WARNING | When battery is disconnected, vehicles equipped with computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION section. |
BRAKE PAD WEAR INDICATOR
Indicator will cause a squealing or scraping noise, warning that brake pads need replacement.
CATALYTIC CONVERTER
To prevent catalytic converter overheating, DO NOT allow engine to idle for more than 20 minutes.
ELECTROSTATIC DISCHARGE SENSITIVE (ESD) PARTS
| WARNING | Many solid state electrical components can be damaged by static electricity (ESD). Some will display a warning label, but many will not. Discharge personal static electricity by touching a metal ground point on the vehicle prior to servicing any ESD sensitive component. |
FUEL SYSTEM SERVICE
| WARNING | Relieve fuel system pressure prior to servicing any fuel system component (fuel injection models). |
HALOGEN BULBS
Halogen bulbs contain pressurized gas which may explode if overheated. DO NOT touch glass portion of bulb with bare hands. Eye protection should be worn when handling or working around halogen bulbs.
RADIATOR FAN
| WARNING | Keep hands away from radiator fan. Fan is controlled by a thermostatic switch which may come on or run for up to 15 minutes even after engine is turned off. |
