Dtc B2036 Power Supply Relay Malfunction Open

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Pre-Crash Safety. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT SEAT BELT CONTROL ECU (+B TERMINAL VOLTAGE)

DTC B2036 Power Supply Relay Malfunction Open


DESCRIPTION

If the seat belt control ECU judges that there is a malfunction in its internal circuit as a result of self-diagnosis, or if the power source voltage (+B) is not input to the seat belt control ECU, this DTC will be stored.

DTC Code
DTC Detection Condition
Trouble Area
B2036
  1. Malfunction in seat belt control ECU
  2. Power source voltage (+B) is not input to the seat belt control ECU.
  1. Harness or connector
  2. Fuse
  3. Seat belt control ECU

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Pre-Crash Safety.Pre-Crash Safety System. Dtc B2036 Power Supply Relay Malfunction Open


INSPECTION PROCEDURE

CAUTION:
The pretensioner is built into the front seat outer belt assembly. Be sure to follow the correct inspection procedure, as failure to follow the correct procedure (such as inspection of incorrect connectors) may deploy the pretensioner.
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.INSPECT SEAT BELT CONTROL ECU (+B TERMINAL VOLTAGE)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Pre-Crash Safety.Pre-Crash Safety System. Dtc B2036 Power Supply Relay Malfunction Open

  1. Disconnect the negative (-) battery terminal.

    CAUTION:
    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

  1. Disconnect the E41 connector of the seat belt control ECU.

  1. Connect the negative (-) battery terminal.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E41-7 (+B) - Body ground
    		Always
    		11 to 14 V
    Result
    Result
    		Proceed to
    OK
    (for LHD)
    		A
    OK
    (for RHD)
    		B
    NG
    		C

  1. Disconnect the negative (-) battery terminal.

  1. Reconnect the E41 seat belt control ECU connector.

  1. Connect the negative (-) battery terminal.



B
REPLACE SEAT BELT CONTROL ECU (Click here)

C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE SEAT BELT CONTROL ECU (Click here)