DTC 527

DTC 527 HV MAIN RELAY MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detection Condition:

The HV control ECU monitors the IGCT relay and IG2 relay to detect malfunction.

Wiring Diagram:

Step 1:

INSPECTION PROCEDURE
HINT: If there is a battery voltage at the +B, MREL or IGSW terminal of the HV control ECU even though the power switch is turned OFF, the circuit is shorted to the +B power supply.