Toyota Tundra Service Manual: Steering Pad Switch Circuit

Toyota Tundra Service Manual / Engine, Hybrid System / Cruise Control / Lane Departure Alert System / Steering Pad Switch Circuit

DESCRIPTION

The forward recognition camera receives a lane departure alert switch signal from the steering pad switch assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System.

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PROCEDURE

1.	INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

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(b) Inspect the steering pad switch assembly.

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REPLACE STEERING PAD SWITCH ASSEMBLY

2.	INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

(a) Remove the spiral with sensor cable sub-assembly.

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(b) Inspect the spiral with sensor cable sub-assembly.

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REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

3.	CHECK HARNESS AND CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA)

(a) Disconnect the J45 spiral with sensor cable sub-assembly connector.

(b) Disconnect the W9 forward recognition camera connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
J45-11 (DIST) - W9-3 (LKSW)	Always	Below 1 Ω
J45-11 (DIST) or W9-3 (LKSW) - Body ground	Always	10 kΩ or higher

(d) Connect the W9 forward recognition camera connector.

(e) Connect the J45 spiral with sensor cable sub-assembly connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.	CHECK HARNESS AND CONNECTOR (SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY - ECM)

(a) Disconnect the J45 spiral with sensor cable sub-assembly connector.

(b) Disconnect the A24 ECM connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
J45-2 (ECC) - A24-59 (ECCS)	Always	Below 1 Ω
J45-2 (ECC) or A24-59 (ECCS) - Body ground	Always	10 kΩ or higher

(d) Connect the J45 spiral with sensor cable sub-assembly connector.

(e) Connect the A24 ECM connector.

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

REPAIR OR REPLACE HARNESS OR CONNECTOR

Problem Symptoms Table

System Description

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