Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Steering Pad Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

for 2TR-FE

for 2GR-FKS

for 2GR-FKS

CAUTION / NOTICE / HINT

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.

Click here PROCEDURE

PROCEDURE

1.

INSPECT STEERING PAD SWITCH ASSEMBLY

(a) Remove the steering pad switch assembly.

Click here (b) Inspect the steering pad switch assembly.

(b) Inspect the steering pad switch assembly.

Click here

NG

REPLACE STEERING PAD SWITCH ASSEMBLY

OK

2.

INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

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

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

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

Click here

NG

REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

OK

3.

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

(a) Disconnect the S8 spiral cable with sensor sub-assembly connector.

(b) Disconnect the F46 forward recognition camera connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

S8-12 (DIST) - F46-3 (LKSW)

Always

Below 1 Ω

S8-12 (DIST) or F46-3 (LKSW) - Body ground

Always

10 kΩ or higher

(d) Connect the F46 forward recognition camera connector.

(e) Connect the S8 spiral cable with sensor sub-assembly connector.

Result

Proceed to

OK (for 2TR-FE)

A

OK (for 2GR-FKS)

B

NG

C

B

GO TO STEP 5

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

A

4.

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

(a) Disconnect the S8 spiral cable with sensor sub-assembly connector.

(b) Disconnect the E20 ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

S8-2 (ECC) - E20-21 (ECCS)

Always

Below 1 Ω

S8-2 (ECC) or E20-21 (ECCS) - Body ground

Always

10 kΩ or higher

(d) Connect the S8 spiral cable with sensor sub-assembly connector.

(e) Connect the E20 ECM connector.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND)

(a) Disconnect the S8 spiral cable with sensor sub-assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

S8-2 (ECC) - Body ground

Always

Below 1 Ω

(c) Connect the S8 spiral cable sub-assembly connector.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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