Check for poor connections or loose terminals at the under-hood fuse/relay box and the ECM. If the ECM was updated,
substitute a known-good ECM,
then recheck. If the ECM was substituted, go to
Step 1
.
NO
-
If the ECM was updated, troubleshooting is complete. If the ECM was substituted,
replace the original ECM.
If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■