DTC 36
DTC 36: DC-DC Converter Temperature Signal Circuit Low Input1. Reset the MCM.
2. Turn the ignition switch ON (II).
Is DTC 36 indicated?
YES- Go to step 3.
NO- Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the DC-DC converter and at the MCM.
3. Turn the ignition switch OFF.
4. Turn the battery module switch OFF.
5. Remove the IPU lid.
6. Check for continuity between body ground and MCM connector terminal B13.
Is there continuity?
YES- Go to step 7.
NO- Substitute a known-good MCM and recheck. If the symptom/indication goes away, replace the original MCM.
7. Disconnect the DC-DC converter 8P connector.
8. Check for continuity between body ground and MCM connector terminal B13.
Is there continuity?
YES- Go to step 9.
NO- Replace the DC-DC converter.
9. Disconnect MCM connector B (25P).
10. Check for continuity between body ground and MCM connector terminal B13.
Is there continuity?
YES- Repair short in the wire between the DC-DC converter and the MCM (B13).
NO- Substitute a known-good MCM and recheck. If the symptom/indication goes away, replace the original MCM.