Dtc B2005 Short To B+ In Seat Belt Motor Lh Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FRONT SEAT OUTER BELT ASSEMBLY LH CIRCUIT

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

DTC B2005 Short to B+ in Seat Belt Motor LH Circuit


DESCRIPTION

The seat belt control ECU receives collision information from the driving support ECU and skid control ECU via CAN communication and tightens the seat belt by operating the motor inside the front seat outer belt LH.
When DTC B2005 is stored, DTCs B2021, B2031, B2032 and B2035 are not stored.

DTC Code
DTC Detection Condition
Trouble Area
B2005
During the initial check or with the ignition switch ON, the seat belt motor LH circuit has a power supply short (the voltage at terminals MOL+ and MOL- is 8.5 V or higher) for 1 second or more.
  1. Front seat outer belt assembly LH
  2. Harness or connector
  3. Seat belt control ECU

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Pre-Crash Safety.Pre-Crash Safety System. Dtc B2005 Short To B+ In Seat Belt Motor Lh Circuit


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 activate the pretensioner.
1.CHECK FRONT SEAT OUTER BELT ASSEMBLY LH CIRCUIT


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Pre-Crash Safety.Pre-Crash Safety System. Dtc B2005 Short To B+ In Seat Belt Motor Lh Circuit

  1. Disconnect the G117 ECU connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    G117-3 (MOL+) - Body ground
    		Ignition switch ON
    		Below 1 V
    G117-4 (MOL-) - Body ground
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Seat Belt Control ECU)


NG
Go to step 2
OK

REPLACE SEAT BELT CONTROL ECU (LandCruiser RM000003UX700KX.html)

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


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Pre-Crash Safety.Pre-Crash Safety System. Dtc B2005 Short To B+ In Seat Belt Motor Lh Circuit

  1. Disconnect the R3 belt connector.

  1. Disconnect the G117 ECU connector.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    R3-1 (MOL+) - Body ground
    		Ignition switch ON
    		Below 1 V
    R3-2 (MOL-) - Body ground
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Front Seat Outer Belt Assembly LH)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE FRONT SEAT OUTER BELT ASSEMBLY LH (LandCruiser RM000002LJS052X.html)