Note
When replacing the combination meter assembly, make sure to replace it with a new one.
Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
When an open circuit or frozen indication is displayed by the self-check function, check for DTCs and troubleshoot according to each inspection procedure.
| Symptom | Suspected Area | Link |
|---|---|---|
| System does not operate at all. | Proceed to "Clearance Warning ECU Power Source Circuit" | |
| CAN communication system (for RHD) | ||
| CAN communication system (for LHD) | ||
| Clearance warning ECU assembly | ||
| System cannot be turned off. | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Freeze condition is displayed as a result of self-check | Proceed to "Sensor Frozen Indication (Dirty or Frozen)" | |
| Combination meter assembly (shift position indicator) operates normally, but detection operates when shift lever is in P, or detection does not operate when shift lever is in any position other than P (front sensor). | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Clearance warning ECU assembly | ||
| Combination meter assembly (shift position indicator) operates normally, but detection operates when shift lever is in any position other than R, or does not operate with shift lever in R (rear sensor). | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) | ||
| Combination meter assembly (speedometer) operates normally, but detection does not operate when vehicle speed meets operation condition, or detection operates when vehicle speed does not meet operation condition (front sensor). | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Sensor detection operation is normal but buzzer operation is intermittent. | Check that the temporarily mute function is not in operation | - |
| Proceed to "Clearance Warning Buzzer Circuit" | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) |
| Symptom | Suspected Area | Link |
|---|---|---|
| Detection operation is normal but clearance sensor indicator does not illuminate. | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Combination meter assembly (LED): Perform Active Test (Indicat. Clearance Sonar LCD) | ||
| Combination meter assembly | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) | ||
| Detection operation is normal but all sensor displays do not appear on multi-information display and multi-display. | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) | ||
| Detection operation is normal but sensor displays do not appear on multi-information display. | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) | ||
| Clearance warning ECU assembly | ||
| Detection operation is normal but sensor displays do not appear on multi-display. | CAN communication system (for RHD) | |
| CAN communication system (for LHD) | ||
| Navigation receiver assembly | ||
| Clearance warning ECU assembly (for RHD) | ||
| Clearance warning ECU assembly (for LHD) |