Code No. P0606: Engine-ECU <M/T> or Engine-A/T-ECU <A/T> Main Processor Malfunction
FUNCTION
The engine-ECU <M/T> or engine-A/T-ECU <A/T> check whether the microcomputer, which performs the drive control of the throttle valve, is normal.
TROUBLE JUDGMENT
Check Condition
Ignition switch is ON position.
Judgment Criterion
Malfunction of the microcomputer.
Check Conditions
Ignition switch is in ON position.
Battery voltage is 6.3 V or more.
Judgment Criteria
Throttle position sensor output voltage is 4.1 V or less.
or
Malfunction of the main microcomputer basic voltage.
Check Conditions
Ignition switch is ON position.
Throttle position sensor (main) output voltage is between 0.4 and 4.8 V.
Judgment Criterion
Malfunction of the throttle position sensor (main) input interface.
PROBABLE CAUSE
Failed the engine-ECU <M/T>
Failed the engine-A/T-ECU <A/T>
DIAGNOSIS
STEP 1. Check the trouble symptoms.
Q. Does trouble symptom persist?
Replace engine-ECU <M/T> or engine-A/T-ECU <A/T>.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points
).