Code No. P0642: Throttle Position Sensor Power Supply

FUNCTION

• Engine-ECU <M/T> or engine-A/T-ECU <A/T> checks the throttle position sensor power voltage for abnormal conditions.
  

TROUBLE JUDGMENT

• Battery positive voltage is 6.3 V or higher.
  

• Throttle position sensor power voltage is 4.1 V or less for 0.5 second.
  

PROBABLE CAUSE

• Failed engine-ECU <M/T> or engine-A/T-ECU <A/T>
  

	Replace the engine-ECU <M/T> or engine-A/T-ECU <A/T>.

	Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).