CRUISE CONTROL SYSTEM PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Vehicle speed cannot be set. (The CRUISE main indicator light comes on.) | Cruise control switch circuit | |
| If the symptoms still occur after the above area has been inspected and has proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| Pushing the ON-OFF button does not turn the cruise control system on. (Vehicle speed cannot be set.) | Stop light switch circuit | |
| Vehicle speed sensor circuit | ||
| Cruise control switch circuit | ||
| Transmission range sensor circuit (for AA80E) | ||
| Shift paddle switch circuit (for AA80E) | ||
| If the symptoms still occur after the above areas have been inspected and have proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| Pushing the ON-OFF button does not turn the cruise control system on. (Vehicle speed can be set.) | Cruise main indicator light circuit | |
| If the symptoms still occur after the above area has been inspected and has proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| The cruise control is canceled while it is operating. | Stop light switch circuit | |
| Transmission range sensor circuit (for AA80E) | ||
| Shift paddle switch circuit (for AA80E) | ||
| Cruise control switch circuit | ||
| Vehicle speed sensor circuit | ||
| If the symptoms still occur after the above areas have been inspected and have proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| Pulling back on the control main switch does not cancel the cruise control. (The CRUISE main indicator light remains on.) | Cruise control switch circuit | |
| If the symptoms still occur after the above area has been inspected and has proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| Pulling back on the control main switch does not cancel the cruise control. (The CRUISE main indicator light goes off.) | Replace ECM (for 2UR-GSE) | |
| The cruise control is not canceled when vehicle speed drops below the low speed limit. (The CRUISE main indicator light remains on.) | Vehicle speed sensor circuit | |
| If the symptoms still occur after the above area has been inspected and has proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| The cruise control is not canceled when vehicle speed drops below the low speed limit. (The CRUISE main indicator light goes off.) | Replace ECM (for 2UR-GSE) | |
| Depressing the brake pedal does not cancel the cruise control. (The CRUISE main indicator light remains on.) | Stop light switch circuit | |
| If the symptoms still occur after the above area has been inspected and has proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| Depressing the brake pedal does not cancel the cruise control. (The CRUISE main indicator light goes off.) | Replace ECM (for 2UR-GSE) | |
| Moving the shift lever does not cancel the cruise control. | Transmission range sensor circuit (for AA80E) | |
| Shift paddle switch circuit (for AA80E) | ||
| If the symptoms still occur after the above areas have been inspected and have proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| Hunting. (Speed is not constant.) | Vehicle speed sensor circuit | |
| If the symptoms still occur after the above area has been inspected and has proven to be normal, replace the ECM. (for 2UR-GSE) | ||
| The CRUISE main indicator light remains blinking. | TC and CG terminal circuit | |
| If the symptoms still occur after the above area has been inspected and has proven to be normal, replace the ECM. (for 2UR-GSE) |