DTC P1C26: DCDC Hunting Abnormal
TROUBLE JUDGMENT
Check Condition
The PHEV-ECU allows the DC-DC converter to operate.
Judgment Criterion
Hunting is detected.
FAIL-SAFE AND BACKUP FUNCTION
The output of DC-DC converter continues.
PROBABLE CAUSE
The on board charger/DC-DC converter is failed.
DIAGNOSIS
Required Special Tools
MB991223: Wiring harness set
MB992006: Extra fine probe
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the DTC is set.
Is the DTC set?
Replace the on board charger/DC-DC converter (Refer to
).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions
).
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Replace the on board charger/DC-DC converter (Refer to 
).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).