Visual Inspection - Electrical
- Blown Fuse(s)
- Damaged Indicator Bulbs
- Damaged Wiring Harness
- Loose Or Corroded Connections
- Damaged Switches, Sensors Or Modules
- Damaged VSS
- Damaged Instrument Cluster
Verify charging system, fuel system, safety belt warning chime, turn signals, headlights and cruise control are working properly. Inspect wiring harness for obvious signs of shorts, opens, bad connections or damage.
TEST SYMPTOM INDEX
| Symptom | Possible Cause | Test |
|---|---|---|
| Display Inoperative Or Erratic | Fuse, Wiring, Printed Ckt | A |
| Fuel Reads Empty | Level Sensor, Gauge, Wiring, Printed Ckt | B |
| Fuel Reads Inaccurately | Level Sensor, Gauge, Wiring, Printed Ckt | C |
| Fuel Reads Full | Level Sensor, Gauge, Wiring, Printed Ckt | D |
| Temp. Gauge Reads Cold | Sending Unit, Gauge, Printed Ckt | E |
| Temp. Gauge Reads Hot | Sending Unit, Gauge, Wiring, Printed Ckt | F |
| Temp. Gauge Reads Inaccurately | Sending Unit. Wiring, Printed Ckt | G |
| Speedometer/Odometer Inaccurate | Speedometer, VSS, Speedometer Cable | H |
| Speedometer Noisy | Speedometer, VSS, Speedometer Cable | J |
| Speedometer/Odometer Inoperative | Speedometer, VSS, Wiring, Cable | K |
| Tachometer Inoperative | Tachometer, Wiring, Printed Ckt | L |
| Tachometer Inaccurate | Tachometer, Wiring, Printed Ckt | M |
| All Indicators Inoperative | Wiring, Printed Ckt | N |
| Brake Warning Never/Always On | Bulb, Brake Signal Switch, Wiring, Printed Ckt | P |
| Charge Warning Never/Always On | Bulb, Generator, Wiring, Printed Ckt | Q |
| Oil Pressure Warning Never/Always On | Low Oil Pressure, Sensor, Wiring, Printed Ckt | R |
| Air Bag Warning Never/Always On | ** | See Appropriate AIR BAG RESTRAINT SYSTEM Article |
| Anti-Lock Warning Never/Always On | ** | See Appropriate ABS Article |
| Turn & Hi Beam Indicators Never/Always On | Wiring, Printed Ckt | S |
| LH Turn Indicator Never/Always On | Bulb, Wiring, Printed Ckt | T |
| RH Turn Indicator Never/Always On | Bulb, Wiring, Printed Ckt | U |
| High Beam Warning Never/Always On | Bulb, Wiring, Printed Ckt | V |
| MIL Never/Always On | ** | See TESTS W/CODES Article |
| Low Coolant Warning Never/Always On | Bulb, Wiring, Printed Ckt, Sensor | W |
| Upshift Indicator Never/Always On | Bulb, Wiring, Printed Ckt, 5th/Reverse Gear Switch | X |
| Safety Belt Warning Never/Always On | Bulb, Fuse, Wiring, Printed Ckt | Y |
| Liftgate Warning Never/Always On | Bulb, Printed Ckt, Luggage Compartment Light Switch | Z |