ELECTRIC POWER CONTROL SYSTEM, Diagnostic DTC:B22B2, B22B3

DTC Code DTC Name
B22B2 Power Cut Relay On Stuck
B22B3 Power Cut Relay Off Stuck

DESCRIPTION

The power cut relay is built into the power electric control ECU. When the vehicle is parked for an extended period of time, the power electric control ECU turns the power cut relay OFF, which cuts power to the power cut linked parts.

DTC Code DTC Detection Condition Trouble Area
B22B2

Power cut relay ON malfunction


  • When power cut relay is cut (OFF), it is stuck ON

  • P-D/C CUT fuse

  • Passenger side junction block (Electric power control ECU)

  • Wire harness
B22B3

Power cut relay OFF malfunction


  • When power cut relay is supplying power (ON), it is stuck OFF

  • P-D/C CUT fuse

  • Passenger side junction block (Electric power control ECU)

  • Wire harness

WIRING DIAGRAM

A001D2XE01

PROCEDURE


  1. INSPECT FUSE (P-D/C CUT)


    1. Remove the P-D/C CUT fuse from the passenger side junction block.

    2. Measure the resistance of the fuse.

      Standard resistance
      Tester Connection Condition Specified Condition
      P-D/C CUT fuse Always Below 1 Ω

    NG

    REPLACE FUSE

    OK

  2. CHECK PASSENGER SIDE JUNCTION BLOCK (BCUT INPUT VOLTAGE)

    A001EEXE01
    *1 Front view of wire harness connected: (to Passenger Side Junction Block)
    *2 BCUT

    1. Disconnect the PM junction block connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage
      Tester Connection Condition Specified Condition
      PM-1 (BCUT) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK PASSENGER SIDE JUNCTION BLOCK (CUTD OUTPUT VOLTAGE)

    A001E0DE02
    *1 Component with harness connected: (Passenger Side Junction Block)
    *2 PA
    *3 CUTD

    1. Measure the voltage according to the value(s) in the table below.

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      PA-57 or PA-35 (CUTD) - Body ground Engine switch on (IG) 11 to 14 V

    NG

    REPLACE PASSENGER SIDE JUNCTION BLOCK

    OK

  4. CHECK FOR DTC


    1. Delete the DTC Click here.

    2. Check for the DTC again Click here.

      OK
      DTC is not output.

    OK

    END

    NG

    REPLACE PASSENGER SIDE JUNCTION BLOCK (ELECTRIC POWER CONTROL ECU)