DTC 32
DTC 32: Motor Driver Module (MDM) Temperature Signal Circuit Low Input1. Reset the MCM.
2. Turn the ignition switch ON (II).
Is DTC 32 indicated?
YES- Go to step 3.
NO- Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the voltage converter module 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 B14.
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 power converter wire harness 24P connector.
8. Check for continuity between body ground and MCM connector terminal B14.
Is there continuity?
YES- Go to step 9.
NO- Go to step 11.
9. Disconnect MCM connector B (25P).
10. Check for continuity between body ground and MCM connector terminal B14.
Is there continuity?
YES- Repair short in the wire between the MCM (B14) and the voltage converter module.
NO- Substitute a known-good MCM and recheck. If the symptom/indication goes away, replace the original MCM.
11. Remove the PCU, and disconnect the voltage converter module 16P connector.
12. Check for continuity between the voltage converter module case and the voltage converter module 16P connector terminal No. 8.
Is there continuity?
YES- Repair short in the wire between the power converter wire harness 24P connector and the voltage converter module.
NO- Replace the voltage converter module, and the MPI module.