Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use the table below to help determine the cause of problem symptoms. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- The power tilt and power telescopic steering column system uses the CAN communication system, so check its diagnostic system before proceeding to troubleshooting.
- If the problem still occurs when there is no abnormality in the related circuits, check the multiplex tilt and telescopic ECU and replace it if necessary.
Power tilt and power telescopic steering column system
POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM SYMPTOMS CHART
| Symptom | Suspected Area | Reference |
|---|---|---|
| Tilt and telescopic function does not operate at all | Check DTCs | DTC CHECK/CLEAR |
| Actuator power source circuit | ACTUATOR POWER SOURCE CIRCUIT | |
| IG power source circuit | IG POWER SOURCE CIRCUIT | |
| Manual switch only does not operate | Tilt and telescopic manual switch circuit | DTC B2603: TILT AND TELESCOPIC MANUAL SWITCH CIRCUIT MALFUNCTION |
| Headlight dimmer switch assembly (tilt and telescopic manual switch) | DTC B2603: TILT AND TELESCOPIC MANUAL SWITCH CIRCUIT MALFUNCTION | |
| Auto away/return function only does not operate | Check status of auto away function using the Techstream | CUSTOMIZE PARAMETERS |
| IG power source circuit | IG POWER SOURCE CIRCUIT | |
| Actuator power source circuit | ACTUATOR POWER SOURCE CIRCUIT | |
| Auto away function only does not operate | Unlock warning switch | DTC B2602: KEY UNLOCK WARNING SWITCH CIRCUIT MALFUNCTION |
| Ignition switch | INSPECTION | |
| Multiplex tilt and telescopic ECU | TERMINALS OF ECU | |
| Auto return function only does not operate | Unlock warning switch | DTC B2602: KEY UNLOCK WARNING SWITCH CIRCUIT MALFUNCTION |
| Ignition switch | INSPECTION | |
| Multiplex tilt and telescopic ECU | TERMINALS OF ECU | |
| Memory function only does not operate | Front power seat control ECU and switch LH | SYSTEM DESCRIPTION |
| Multiplex tilt and telescopic ECU | TERMINALS OF ECU |