Powertrain Management

DTC P0602

DTC Detecting Condition and Trouble Area

NOTE:

After reprogramming of ECM is executed, if the DTC P0602 is indicated, it is possible that the reprogramming of ECM is not completed correctly.






DTC Confirmation Procedure

1) Push engine switch to change ignition mode to "ON".

DTC Troubleshooting


1. DTC recheck
Clear DTC. DTC Clearance
Push engine switch to change ignition mode to "OFF".
Perform DTC confirmation procedure, and check DTC.
Is DTC P0602 still detected?
YES
Go to Step 2.
NO
Check for intermittent trouble. Intermittent Connection and Poor Contact Inspection
2. ECM reprogramming check
Was reprogramming of ECM executed?
YES
Execute reprogramming of ECM correctly once again.
NO
Go to Step 3.
3. ECM power and ground circuit check
Check ECM power and ground circuit. Component Tests and General Diagnostics
Is it in good condition?
YES
Replace ECM and recheck DTC. Service and Repair
NO
Repair or replace defective wire harness.