Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT HEADLIGHT ASSEMBLY LH

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

OK:

Battery Connection

Specified Condition

If the result is not as specified, replace the headlight assembly LH.

Positive (+) → 6

Negative (-) → 4

Parking light illuminates

Positive (+) → 5

Negative (-) → 4

Daytime running light illuminates

Positive (+) → 2

Negative (-) → 4

Low beam illuminates

Positive (+) → 1

Negative (-) → 4

High beam illuminates

*a

Component without harness connected

(Headlight Assembly LH)

2. INSPECT HEADLIGHT ASSEMBLY RH

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

OK:

Battery Connection

Specified Condition

If the result is not as specified, replace the headlight assembly RH.

Positive (+) → 6

Negative (-) → 4

Parking light illuminates

Positive (+) → 5

Negative (-) → 4

Daytime running light illuminates

Positive (+) → 2

Negative (-) → 4

Low beam illuminates

Positive (+) → 1

Negative (-) → 4

High beam illuminates

*a

Component without harness connected

(Headlight Assembly RH)

    Disassembly

    Installation

    See More:

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    DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 22 (CA2H) and 7 (CA2L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Symptom Trouble Area *1: for 4WD *2: w/ Trailer Brake Control System Resistanc ...

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    Toyota Tundra Service Manual

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