Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT IGNITION SWITCH ASSEMBLY

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

All terminals

LOCK

10 kΩ or higher

2 (ACC) - 4 (AM1)

ACC

Below 1 Ω

1 (IG1) - 4 (AM1)

ON

2 (ACC) - 4 (AM1)

5 (AM2) - 6 (IG2)

1 (IG1) - 4 (AM1)

START

3 (ST1) - 4 (AM1)

5 (AM2) - 6 (IG2)

5 (AM2) - 7 (ST2)

If the result is not as specified, replace the ignition switch assembly.

    Components

    Installation

    See More:

    Toyota Tundra Service Manual > Can Communication System: Check Bus 2 Line for Short to +B
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and termi ...

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