Problem Symptoms Table
Meter, Gauges and Illumination:
COMBINATION METER
| Symptom/Suspected Area | See | ||
|---|---|---|---|
| Tachometer, Fuel Gauge & Water Temperature Gauge Do Not Operate | |||
| GAUGE Fuse | IDENTIFICATION | ||
| Body ECU | TERMINALS OF ECU | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| Speedometer Does Not Operate | |||
| Vehicle Speed Sensor | Step 2 under INSPECTION | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| Tachometer Does Not Operate. | |||
| ECM | |||
| 2RZ-FE, 3RZ-FE | PIN VOLTAGE CHARTS | ||
| 5VZ-FE | PIN VOLTAGE CHARTS | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| Igniter | |||
| 2RZ-FE, 3RZ-FE | TACOMA | ||
| 5VZ-FE | TACOMA, TUNDRA 3.4L V6 & 4RUNNER | ||
| Fuel Gauge Does Not Operate Or Abnormal Operation. | |||
| Fuel Receiver Gauge | Steps 4 & 5 underINSPECTION | ||
| Fuel Sender Gauge | Step 6 under INSPECTION | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| Engine Coolant Temperature Gauge Does Not Operate Or Abnormal Operation | |||
| Engine Coolant Temperature Receiver Gauge | Step 9 under INSPECTION | ||
| Engine Coolant Temperature Sender Gauge | Step 11 under INSPECTION | ||
| ECM | |||
| 2RZ-FE, 3RZ-FE | PIN VOLTAGE CHARTS | ||
| 5VZ-FE | PIN VOLTAGE CHARTS | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| All Illumination Light Does Not Light Up. | |||
| Light Control Rheostat | Steps 21 & 22 under INSPECTION | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| Only One Illumination Light Does Not Light Up. | |||
| Bulb | Check Bulbs | ||
| Meter Circuit | Check Meter Circuit | ||
Warning Lights:
COMBINATION METER
| Symptom/Suspected Area | See | |
|---|---|---|
| Warning Lights Do Not Light Up (Except Discharge) | ||
| Bulb | Check Bulb | |
| GAUGE Fuse | IDENTIFICATION | |
| Ignition Switch | IDENTIFICATION | |
| Meter Circuit | CIRCUIT | |
| Wire Harness | Check Wiring Harness | |
| Low Oil Pressure Warning Light Does Not Light Up | ||
| Bulb | Check Bulb | |
| Oil Pressure Warning Switch | Step 13 under INSPECTION | |
| Meter Circuit | CIRCUIT | |
| Wire Harness | Check Wiring Harness | |
| Brake Warning Light Does Not Light Up | ||
| Bulb | Check Bulb | |
| Brake Fluid Level Warning Switch | Step 15 under INSPECTION | |
| Parking Brake Switch | Step 16 under INSPECTION | |
| Meter Circuit | CIRCUIT | |
| Wire Harness | Check Wiring Harness | |
| Washer Level Warning Light Does Not Light Up | ||
| Bulb | Check Bulb | |
| Washer Fluid Level Warning Switch | Step 17 under INSPECTION | |
| Meter Circuit | CIRCUIT | |
| Wire Harness | Check Wiring Harness | |
| Discharge Warning Light Does Not Light Up | ||
| IGN Fuse | Check Ignition Fuse | |
| Bulb | Check Bulb | |
| Wire Harness | Check Wiring Harness | |
| Generator | Check Generator | |
| Seat Belt Warning Light Does Not Light Up | ||
| Bulb | Check Bulb | |
| Seat Belt Buckle Switch | Step 20 under INSPECTION | |
| Body ECU | Check Body ECU | |
| Meter Circuit | CIRCUIT | |
| Wire Harness | Check Wiring Harness | |
Indicator Lights:
COMBINATION METER
| Symptom/Suspected Area | See | ||
|---|---|---|---|
| SRS Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Airbag Sensor Assembly | AIR BAG WARNING LIGHT DOES NOT ILLUMINATE | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| ABS Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| ABS ECU | TEST A: ABS WARNING LIGHT | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| Malfunction Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| ECM | |||
| 2RZ-FE, 3RZ-FE | PIN VOLTAGE CHARTS | ||
| 5VZ-FE | PIN VOLTAGE CHARTS | ||
| Wire Harness | Check Wiring Harness | ||
| Turn Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Turn Signal And Hazard Warning System | HEADLIGHT AND TAILLIGHT SYSTEM | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| High Beam Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Headlight And Taillight System | HEADLIGHT AND TAILLIGHT SYSTEM | ||
| Meter Circuit | CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||
| O/D OFF Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Meter Circuit | CIRCUIT | ||
| ECM | |||
| A44D | COMPONENT TESTS | ||
| A340E & A340F | O/D MAIN SWITCH | ||
| Wire Harness | Check Wiring Harness | ||
| A/T OIL TEMP. Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Meter Circuit | CIRCUIT | ||
| ECM | PIN VOLTAGE TESTS | ||
| Wire Harness | Check Wiring Harness | ||
| ECT PWR Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Meter Circuit | CIRCUIT | ||
| Pattern Select Switch | PATTERN SELECT SWITCH (TACOMA & 4RUNNER) | ||
| Wire Harness | Check Wiring Harness | ||
| A/T Indicator Light Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Meter Circuit | CIRCUIT | ||
| ECM | |||
| 2RZ-FE, 3RZ-FE | PIN VOLTAGE CHARTS | ||
| 5VZ-FE | PIN VOLTAGE CHARTS | ||
| Wire Harness | Check Wiring Harness | ||
| Cruise Control Indicator Lights Does Not Light Up | |||
| Bulb | Check Bulb | ||
| Meter Circuit | CIRCUIT | ||
| Cruise ECU | ECU POWER SOURCE CIRCUIT | ||
| Wire Harness | Check Wiring Harness | ||