DTC 33
DTC 33: Motor Driver Module (MDM) Temperature Signal Circuit High Input1. Reset the MCM.
2. Turn the ignition switch ON (II).
Is DTC 33 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. Turn the ignition switch ON (II).
7. Measure voltage between MCM connector terminals B14 and D5.
Is there about 5 V?
YES- Go to step 8.
NO- Substitute a known-good MCM and recheck. If the symptom/indication goes away, replace the original MCM.
8. Measure voltage between the power converter wire harness 24P connector terminal No. 1 and MCM connector terminal B14.
Is there about 5 V?
YES- Repair open in the wire between the MCM (B14) and the power converter wire harness 24P connector.
NO- Go to step 9.
9. Check for continuity between the power converter wire harness 24P connector terminal No. 14 and MCM connector terminal D5.
Is there continuity?
YES- Go to step 10.
NO- Repair open in the wire between the MCM (D5) and the power converter wire harness 24P connector.
10. Remove the PCU. Check for continuity between the power converter wire harness 24P connector terminal No. 1 and the voltage converter module 16P connector terminal No. 8.
Is there continuity?
YES- Go to step 11.
NO- Repair open in the wire between the power converter wire harness 24P connector and the voltage converter module.
11. Check for continuity between the power converter wire harness 24P connector terminal No. 14 and the voltage converter module 16P connector terminal No. 16.
Is there continuity?
YES- Replace the voltage converter module and the MPI module.
NO- Repair open in the wire between the power converter wire harness 24P connector and the voltage converter modules