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DTC P1B7D: Charge-Discharge connector 12V relay circuit high
 
 
 
 
TROUBLE JUDGMENT
The V2H relay excitation circuit inside the PHEV-ECU fails while the V2H relay drive command is underway.
 
 
PROBABLE CAUSES
  • Malfunction of the PHEV-ECU.
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-IIISE), check whether the DTC is set again.
(1) Erase the set DTC.
(2) Turn on the power supply mode of the electric motor switch.
(3) Execute the actuator test (Refer to ).
  • Item No. 22: Charge&Discharge connector relay
(4) Check if the DTC is set.
Is the DTC set?
Replace the PHEV-ECU (Refer to ).
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).