Problem Symptoms Table
If a normal system code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting article.
HINT:
Inspect the "Fuse" and "Relay" before confirming the suspected areas as shown in the chart below. Inspect each malfunction circuit in numerical order for the corresponding symptom.
CRUISE CONTROL SYSTEM
PROBLEM SYMPTOMS TABLE
| 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) | AX-38 | |
| 4. Transmission control switch circuit | AX-125 | |
| 5. Combination meter system | ME-14 | |
| 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) | AX-38DTC 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 | ME-14COMBINATION METER |