Dtc B2007 Open 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 B2007 Open 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 B2007 is stored, DTCs B2031 and B2032 are not stored.

DTC Code
DTC Detection Condition
Trouble Area
B2007
During the initial check or with the ignition switch ON, the seat belt motor LH circuit has an open (the voltage at terminal MOL+ is 8.5 V or higher and the voltage at terminal MOL- is below 2 V) 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 B2007 Open 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 B2007 Open In Seat Belt Motor Lh Circuit

  1. Disconnect the G117 ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G117-3 (MOL+) - G117-4 (MOL-)
    		Always
    		Below 20 Ω
    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)

  1. Disconnect the G117 ECU connector.

  1. Disconnect the R3 belt connector.

  1. Using a service wire, connect terminals R3-1 (MOL+) and R3-2 (MOL-) of the connector of the front seat outer belt LH.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    G117-3 (MOL+) - G117-4 (MOL-)
    		Always
    		Below 2 Ω


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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