Monitors whether input voltage from the accelerator pedal position sensor (sub) is normally converted into a digital signal in the engine-ECU.
TROUBLE JUDGEMENT
Check Condition
Ignition switch is "ON" position.
Judgement Criterion
When the input voltage from the accelerator pedal position sensor (sub) is periodically 0 V, the digital value of the input voltage indicates more than 0.2 V.
FAIL-SAFE AND BACKUP FUNCTION
Throttle opening degree position is in default position.
PROBABLE CAUSE
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III diagnosis code
Reconfirmation of diagnosis code.
Q.
Is diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).