Lexus IS250 IS220d GSE20 ALE20 - PRE-CRASH SAFETY
INSPECT FRONT SEAT OUTER BELT ASSEMBLY LH
CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY - SEAT BELT CONTROL ECU)
DTC B2006 Short to GND 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 |
| B2006 | Short to ground in seat belt motor LH circuit continues for 1 second or more Short in seat belt motor LH circuit | Front seat outer belt 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 O13 connector 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 - Body ground Always 1 MΩ or higher O13-2 - Body ground Always 1 MΩ or higher
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| OK | |
| 2.CHECK HARNESS AND CONNECTOR (FRONT SEAT OUTER BELT ASSEMBLY - SEAT BELT CONTROL ECU) |
Disconnect the negative (-) battery terminal.
Disconnect the O38 connector of the seat belt control ECU.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection Condition Specified Condition O13-1 - Body ground Always 1 MΩ or higher O13-2 - Body ground Always 1 MΩ or higher O13-1 - O13-2 Always 1 MΩ or higher
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| OK | ||
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LEXUS IS250, IS220d / GSE20 ALE20