Problem Symptoms Table
CRUISE CONTROL SYSTEM
PROBLEM SYMPTOMS TABLE (CRUISE CONTROL SYSTEM)
| Symptom | Suspected area |
|---|---|
| Main switch cannot be turned ON. (CRUISE main indicator light on combination meter does not illuminate.) | 1. CRUISE CONTROL SWITCH CIRCUIT |
| 2. CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| 3. Hybrid vehicle control ECU. See 1 | |
| Vehicle speed setting cannot be done. (CRUISE main indicator light on combination meter illuminates when main switch is turned ON, but turns off when operating SET function.) | 1. CRUISE CONTROL SWITCH CIRCUIT |
| 2. Hybrid vehicle control ECU. See 1 | |
| Vehicle speed setting cannot be done. (CRUISE main indicator light on combination meter illuminates when main switch is turned ON, and remains illuminated when operating SET function.) | 1. CRUISE CONTROL SWITCH CIRCUIT |
| 2. Stop light switch circuit. SeeDTC P0571 STOP LIGHT SWITCH CIRCUIT MALFUNCTION | |
| 3. Park/neutral position switch circuit (DTC P0705) | |
| 4. COMBINATION METER | |
| 5. Hybrid vehicle control ECU. See 1 | |
| While the vehicle is driving with cruise control, the set control is canceled. (CRUISE main indicator light remains illuminated.) | 1. CRUISE CONTROL SWITCH CIRCUIT |
| 2. VEHICLE SPEED SENSOR CIRCUIT | |
| 3. STOP LIGHT SWITCH CIRCUIT | |
| 4. CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| 5. Park/neutral position switch circuit (DTC P0705) | |
| 6. Hybrid vehicle control ECU. See 1 | |
| Hunting (Speed is not constant.) | 1. VEHICLE SPEED SENSOR CIRCUIT |
| 2. Hybrid vehicle control ECU. See 1 | |
| Vehicle speed setting cannot be canceled. (When Coast, Acceleration, Resume, Set speed change and Control switch are operated.) | 1. CRUISE CONTROL SWITCH CIRCUIT |
| 2. Hybrid vehicle control ECU. See 1 | |
| DTC is not output, or is output when it should not be. | 1. Diagnosis circuit. See CRUISE MAIN INDICATOR LIGHT CIRCUIT |
| 2. Hybrid vehicle control ECU. See 1 | |
| CRUISE MAIN indicator light does not come on. | 1. CRUISE CONTROL SWITCH CIRCUIT |
| 2. CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| 3. Hybrid vehicle control ECU. See 1 | |
| 4. COMBINATION METER |