Lexus IS250 IS220d GSE20 ALE20 - PRE-CRASH SAFETY
INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH
CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU)
DTC B2007 Open in Seat Belt Motor LH Circuit
DESCRIPTION
The seat belt control ECU receives information from the distance control ECU using CAN communication and tightens the seat belt by operating the motor in the front seat outer belt assembly LH.
- 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.
| DTC No. | DTC Detection Condition | Trouble Area |
| B2007 | Open in seat belt motor LH circuit continues for 1 second or more | Front seat outer assembly LH Wire harness (seat belt control ECU - front seat outer belt assembly LH) Seat belt control ECU |
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- When the seat belt control ECU is replaced with a new one, INITIALIZATION must be performed .
| 1.INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH |
Disconnect the connector O13 of the front seat outer belt assembly LH.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Condition Specified Condition O13-1 - O13-2 Always Below 1 MΩ
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| OK | |
| 2.CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY LH - SEAT BELT CONTROL ECU) |
Disconnect the negative (-) battery terminal.
Disconnect the connector O38 of the seat belt control ECU.
Using a service wire, connect O13-1 and O13-2 of the connector on the front seat outer belt assembly LH side.
- NOTICE:
- Do not forcibly insert the service wire into the terminals of the connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Condition Specified Condition O38-2 (MOL+) - O38-11 (MOL-) Always Below 1 Ω
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| OK | ||
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LEXUS IS250, IS220d / GSE20 ALE20