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
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.
Click here
| NG | .gif) |
REPLACE STEERING PAD SWITCH ASSEMBLY |
|
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|
2. |
INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
(a) Remove the spiral cable with sensor sub-assembly.
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(b) Inspect the spiral cable with sensor sub-assembly.
Click here
| NG | |
REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
|
|
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 |
|
|
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 |
Vehicle Speed Tolerance Malfunction (C1AA2)
DESCRIPTION
The forward recognition camera receives vehicle speed tolerance signals from
the combination meter assembly. If the combination meter assembly detects a vehicle
speed tolerance malfun ...
Indicator Circuit
DESCRIPTION
The forward recognition camera sends indicator illumination request signals to
the combination meter assembly via CAN communication.
CAUTION / NOTICE / HINT
NOTICE:
When replacing th ...
Other materials:
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
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Inspection
INSPECTION
PROCEDURE
1. INSPECT PARK/NEUTRAL POSITION SWITCH
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Component without harness connected
(Park/Neutral Position Switch)
...
High Power Supply Voltage Malfunction (C1417)
DESCRIPTION
If a malfunction is detected in the power supply circuit, the skid control ECU
(housed in the master cylinder solenoid) stores this DTC and the fail-safe function
prohibits ABS/VSC/TRAC operation.
This DTC is stored when the IG1 terminal voltage deviates from the DTC detection
co ...
