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)

Toyota Tundra Service Manual > Sfi System: Catalyst System Efficiency Below Threshold (Bank 1) (P0420,P0430)
MONITOR DESCRIPTION The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The first sensor, the Air-Fuel Ratio (A/F) sensor, sends pre-catalyst information to the ECM. The second sensor, the Heated Oxygen (HO2) sensor, sends post-catal ...

Toyota Tundra Owners Manual