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.
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| 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:
Open in Bus 5 Main Bus Line
DESCRIPTION
There may be an open circuit in one of the CAN main bus lines when the resistance
between terminals 15 (CA5H) and 16 (CA5L) of the central gateway ECU (network gateway
ECU) is 70 Ω or higher.
Detection Item
Trouble Area
Resistance between ter ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
NOTICE:
When removing any parts, turn the ignition switch off.
HINT:
If no abnormality is found when inspecting parts, check the skid control
ECU and check for poor contact at ground points.
When 2 or more DTCs are detected, perform each circuit insp ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to "See page" in the DTC chart.
Wireless Door Lock Control System
DTC Code
Detection Item
...