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P1C00-44 HVAC2 RAM failure
 
 
cautionBefore replacing the ECU, ensure that the CAN bus lines is normal.
 
 
TROUBLE JUDGMENT
Check Condition
  • The IGCT power supply is ON.
Judgment Criterion
  • Failure on RAM is detected.
 
 
PROBABLE CAUSES
  • Malfunction of PHEV A/C amp.
 
 
DIAGNOSIS PROCEDURE
1.Check whether the DTC is set again.
(1) Erase the set DTC.
(2) Depress the brake pedal to change the power supply mode of the electric motor switch to ON (READY indicator: ON).
(3) Check whether the DTC is set again.
Is the DTC set?
Replace PHEV A/C amp. Refer to Removal and Installation.
The trouble can be an intermittent malfunction. Refer to General Information - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS.