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 > Vehicle Stability Control System: Master Cylinder Pressure Sensor Malfunction (C1246)
DESCRIPTION The master cylinder pressure sensor is connected to the skid control ECU in the brake actuator assembly. DTC No. Detection Item DTC Detection Condition Trouble Area C1246 Master Cylinder Pressure Sensor Malfunction When the skid control ECU receives a master cylinder pressure sensor powe ...

Toyota Tundra Owners Manual