Ima Lamp Stays on

1. Turn the ignition switch ON (II), and watch the IMA system indicator.
Does the IMA indicator come on and stay on?

YES - Go to step 2.

2. Turn the ignition switch ON (II), and watch the IMA system indicator.
Are any DTCs indicated?

YES - Go to Troubleshooting Index.
NO - Go to step 3.

3. Turn the ignition switch OFF.
4. Turn the battery module switch OFF.
5. Remove the IPU lid.
6. Disconnect MCM connector A.
7. Turn the ignition switch ON (II).
Does the IMA system indicator stay an?

YES - Repair short in the wire between the MCM (A18) and the gauge assembly.
NO - Substitute a known-good MCM and recheck. If the symptom/indication goes away, replace the original MCM.