Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT TRANSPONDER KEY COIL (IGNITION KEY CYLINDER LIGHT)

(a) Apply battery voltage to the connector and check the light illumination condition.

OK:

Condition

Specified Condition

Battery positive (+) → Terminal 2 (ILL+)

Battery negative (-) → Terminal 4 (ILL-)

Illuminates

If the result is not as specified, replace the transponder key coil (ignition key cylinder light).

*a	Component without harness connected (Transponder Key Coil (Ignition Key Cylinder Light))

Toyota Tundra Service Manual > Occupant Classification System: Center Airbag Sensor Assembly Communication Circuit Malfunction (B1790)
DESCRIPTION The center airbag sensor communication circuit consists of the occupant classification ECU and the center airbag sensor. DTC B1790 is set when a malfunction is detected in the center airbag sensor communication circuit. DTC Code DTC Detection Condition Trouble Area B1790 One of following ...

Toyota Tundra Owners Manual