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Home >> Toyota >> 2014 >> RAV4 EV >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Diagnostic Codes (Chg_F076 - U0424-537) & Circuit Tests)) (Electric) >> Hybrid Control System >> DTC P31CE-353: Contactor Cut OFF Relay Stuck ON [09/2013 - ] >> Description

DTC P31CE-353: Contactor Cut OFF Relay Stuck ON [09/2013 - ]: Description

The power management control ECU controls the ON/OFF condition of the CONTACTOR relay. The power management control ECU detects whether the CONTACTOR relay is stuck ON based on the CONTACTOR relay operation information received from the battery control ECU via CAN communication.

DTC No. INF Code DTC Detection Condition Trouble Area
P31CE 353 Even though the power management control ECU is turning the CONTACTOR relay OFF, voltage is being applied to the CNTB terminal of the battery control ECU.
  • Wire harness or connector
  • Integration relay (CONTACTOR relay)
  • Battery control ECU (Electric vehicle battery assembly)