DTC    B2006    Short to GND in Seat Belt Motor LH Circuit

for Preparation Click here


DESCRIPTION

The seat belt control ECU receives information from the driving support ECU using CAN communication and tightens the seat belt by operating the motor in the front seat outer belt assembly LH.

DTC No.
DTC Detection Condition
Trouble Area
B2006
Short to ground in the seat belt motor LH circuit continues for 1 second or more.
  1. Front seat outer belt assembly LH
  2. Wire harness connector (seat belt control ECU - front seat outer belt assembly LH)
  3. Seat belt control ECU

WIRING DIAGRAM


E183039E24


INSPECTION PROCEDURE

CAUTION:
The pretensioner is built into the front seat outer belt assembly LH. 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:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work (Click here).

1.INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH


    B139235E43

  1. Remove the front seat outer belt assembly LH connector (Click here).

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    P11-1 - Body ground
    		Always
    		1 MΩ or higher
    P11-2 - Body ground
    		Always
    		1 MΩ or higher

  1. Reconnect the front seat outer belt assembly LH connector.



NG
REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH (Click here)
OK


2.CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU)

  1. Disconnect the cable from the negative (-) auxiliary battery terminal.

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

  1. Disconnect the front seat outer belt assembly LH connector.

  1. Disconnect the seat belt control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    P11-1 - Body ground
    		Always
    		1 MΩ or higher
    P11-2 - Body ground
    		Always
    		1 MΩ or higher
    P11-1 - P11-2
    		Always
    		1 MΩ or higher

  1. Reconnect the front seat outer belt assembly LH and seat belt control ECU connectors.

  1. Connect the cable to the negative (-) auxiliary battery terminal.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU)
OK

REPLACE SEAT BELT CONTROL ECU (Click here)