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P0643

DTC P0643 SENSOR POWER SUPPLY




On Board Diagnosis Logic




FAIL-SAFE MODE

DTC Confirmation Procedure

NOTE: If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.

WITH CONSULT-II
1. Turn ignition switch ON.




2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and let it idle for 1 second.
4. If DTC is detected, go to "Diagnostic Procedure" below.

WITH GST
Follow the procedure "WITH CONSULT-II".

Wiring Diagram

EC-SEN/PW-01:








Diagnostic Procedure

Step 1:




Step 2-6:




Step 6 (Continued)-10: