Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Use the table below to help determine the causes of the problem symptom. The potential cases 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.
Cruise Control System
PROBLEM SYMPTOMS
| Symptom | Suspected Area | See |
|---|---|---|
| Main switch cannot be turned ON (Indicator light on the combination meter does not come on) | Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| CRUISE MAIN indicator light circuit | CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| Harness and connector | - | |
| ECM | TERMINALS OF ECM | |
| Desired speed cannot be set (Indicator light on the combination meter comes on when the main switch is turned ON, but goes off when operating the "SET' function) | Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| ECM | TERMINALS OF ECM | |
| Desired speed cannot be set (Indicator light on the combination comes on when the main switch is turned ON and it remains ON, while operating the "SET" function) | Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| Stop light switch circuit | DTC P0571 STOP LIGHT SWITCH CIRCUIT MALFUNCTION | |
| Clutch switch circuit (M/T) | CLUTCH SWITCH CIRCUIT | |
| Park/neutral position switch circuit (A/T, 2WD) | ON-VEHICLE INSPECTION | |
| Park/neutral position switch circuit (A/T, 4WD) | ON-VEHICLE INSPECTION | |
| Combination meter system | CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| Speed sensor circuit | DTC P0500 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION; DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION | |
| ECM | TERMINALS OF ECM | |
| While cruise control driving, the set speed is canceled (Indicator light remains ON) | Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| Speed sensor circuit | DTC P0500 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION; DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION | |
| Stop light switch circuit | DTC P0571 STOP LIGHT SWITCH CIRCUIT MALFUNCTION | |
| Combination meter system | CRUISE MAIN INDICATOR LIGHT CIRCUIT | |
| Clutch switch circuit (M/T) | CLUTCH SWITCH CIRCUIT | |
| Park/neutral position switch circuit (A/T, 2WD) | ON-VEHICLE INSPECTION | |
| Park/neutral position switch circuit (A/T, 4WD) | ON-VEHICLE INSPECTION | |
| ECM | TERMINALS OF ECM | |
| Hunting occurs (Speed is not constant) | Speed sensor circuit | DTC P0500 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION; DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION |
| ECM | TERMINALS OF ECM | |
| Speed setting cannot be canceled ("CANCEL" function failure only) | Cruise control switch circuit | CRUISE CONTROL SWITCH CIRCUIT |
| ECM | TERMINALS OF ECM | |
| DTC is not output, or is output when should not be | DLC3 circuit | TC AND CG TERMINAL CIRCUIT |
| ECM | TERMINALS OF ECM | |
| Cruise control cannot be canceled when vehicle speed decreases to below low speed limit | Speed sensor circuit | DTC P0500 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION; DTC P0503 VEHICLE SPEED SENSOR CIRCUIT MALFUNCTION |
| ECM | TERMINALS OF ECM | |
| Cruise control cannot be canceled when brake pedal is depressed | Stop light switch circuit | DTC P0571 STOP LIGHT SWITCH CIRCUIT MALFUNCTION |
| ECM | TERMINALS OF ECM | |
| Cruise control cannot be canceled when shift lever is operated (A/T) | Park/neutral position switch circuit (A/T, 2WD) | ON-VEHICLE INSPECTION |
| Park/neutral position switch circuit (A/T, 4WD) | ON-VEHICLE INSPECTION | |
| ECM | TERMINALS OF ECM | |
| Cruise control cannot be canceled when clutch pedal is depressed (M/T) | Clutch switch circuit | CLUTCH SWITCH CIRCUIT |
| ECM | TERMINALS OF ECM |