Diesel Data: Automotive Repair

P0607

DTC P0607: ECM Internal Circuit Malfunction

NOTE: Information marked with an asterisk (*) applies to 2004-2005 models.

1. Reset the ECM with the HDS.
2. Turn the ignition switch ON (II).
3. Wait 30 seconds.
4. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0607* indicated?

YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM.

NO - Go to step 5.

5. Turn the ignition switch OFF.
6. Turn the ignition switch ON (II).
7. Wait 10 seconds.
8. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0607* indicated?

YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM.

NO - Intermittent failure, system is OK at this time.