Cruise Control System
SYSTEM REFERENCE
| Symptom | Suspected Area | See |
|---|---|---|
| Main switch cannot be turned ON. (Cruise indicator light in combination meter does not come on.) | 1. Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| 2. CRUISE main indicator light circuit | CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| 3. ECM | TERMINALS OF ECU | |
| Vehicle speed setting cannot be done. (Although indicator light in combination meter comes on when the main switch is turned ON, it goes off when vehicle speed is set.) | 1. Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| 2. ECM | TERMINALS OF ECU | |
| Setting cannot be done. (Indicator light in combination meter comes on when the main switch is turned ON and they remain ON while setting.) | 1. Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| 2. Stop light switch circuit | DTC P0571 BRAKE SWITCH "A" CIRCUIT | |
| 3. Park/neutral position switch circuit (DTC P0705) | DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) | |
| 4. Transmission control switch circuit | TRANSMISSION CONTROL SWITCH CIRCUIT | |
| 5. Combination meter system | HOW TO PROCEED WITH TROUBLESHOOTING | |
| 6. ECM | TERMINALS OF ECU | |
| While the vehicle is driven with cruise control, the set control is canceled. (Indicator light and CRUISE remains ON.) | 1. Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| 2. Vehicle speed sensor circuit | DTC P0500 VEHICLE SPEED SENSOR MALFUNCTION; DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION | |
| 3. Stop light switch circuit | DTC P0571 BRAKE SWITCH "A" CIRCUIT | |
| 4. CRUISE main indicator light circuit | CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| 5. Park/neutral position switch circuit (DTC P0705) | DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) | |
| 6. ECM | TERMINALS OF ECU | |
| Hunting (Speed is not constant.) | 1. Vehicle speed sensor circuit | DTC P0500 VEHICLE SPEED SENSOR MALFUNCTION; DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION |
| 2. ECM | TERMINALS OF ECU | |
| Setting cannot be cancelled. (When Coast, Acceleration, Resume, Set speed change and Control switch are operated.) | 1. Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| 2. ECM | TERMINALS OF ECU | |
| DTC is not output, or is output when it should not be. | 1. Diagnosis circuit | TC AND CG TERMINAL CIRCUIT |
| 2. ECM | TERMINALS OF ECU | |
| CRUISE main indicator light does not come on. | 1. Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| 2. CRUISE main indicator light circuit | CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| 3. ECM | TERMINALS OF ECU | |
| 4. Combination meter | HOW TO PROCEED WITH TROUBLESHOOTING | |
| "SET" indicator light does not come on. (Setting can be done.) | 1. CAN Communication System | HOW TO PROCEED WITH TROUBLESHOOTING |
| 2. Multiplex Communication System | HOW TO PROCEED WITH TROUBLESHOOTING | |
| 3. Combination Meter ("SET" indicator) | DATA LIST / ACTIVE TEST | |
| 4. ECM | REMOVAL | |
| "SET" indicator light comes on. (Setting cannot be done.) | ECM | REMOVAL |