Toyota Tundra Service Manual: Fail-safe Chart

FAIL-SAFE CHART

FAIL-SAFE FUNCTION

(a) When a malfunction occurs in the tire pressure warning system, the tire pressure warning light illuminates after blinking for 1 minute to inform the driver of the system failure.

(b) As a result of this, tire pressure monitoring is disabled and a DTC is stored in the tire pressure warning ECU and receiver.

(c) When there is a system malfunction, the output display according to the tire position turns off.

    ECU Power Source Circuit

    How To Proceed With Troubleshooting

    See More:

    Toyota Tundra Service Manual > Automatic Transmission System: Check Mode Procedure
    CHECK MODE PROCEDURE 1. DESCRIPTION (a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are stored with 1-trip detection logic. 2. CHECK MO ...

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