P0607

DTC P0607: Malfunction in ECM Internal Circuit

(2003 AT-PZEV (SULEV) and 2004-2005 models)

NOTE: Information marked with an asterisk (*) applies to 2003 ULEV model.

1. Reset the ECM with the HDS.
2. Turn the ignition switch ON (II).
3. Wait 40 seconds.
4. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0607 (P1607)* 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.