Toyota Camry (XV70): Steering Pad Switch Circuit
DESCRIPTION
The forward recognition camera receives LTA switch signals from the steering pad switch assembly.
WIRING DIAGRAM
for A25A-FKS
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. |
READ VALUE USING TECHSTREAM (Lane Control) |
(a) Read the Data List according to the display on the Techstream.
Chassis > Lane Control > Data List|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
LDA Control | Whether lane tracing assist system control is permitted or not |
Prohibit or Permit | Prohibit: Lane tracing assist system control not possible Permit: Lane tracing assist system control possible |
- |
|
Tester Display |
|---|
| LDA Control |
|
Result | Proceed to |
|---|---|
|
The value of the Data List item changes in accordance with the operation of the LTA switch |
A |
| The value of the Data List item does not change in accordance with the operation of the LTA switch |
B |
| A |
.gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
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| 2. |
INSPECT STEERING PAD SWITCH ASSEMBLY |
Click here
| NG | | REPLACE STEERING PAD SWITCH ASSEMBLY |
|
| 3. |
INSPECT SPIRAL CABLE SUB-ASSEMBLY |
Click here
| NG | | REPLACE SPIRAL CABLE SUB-ASSEMBLY |
|
| 4. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the V6*1, V21*2 forward recognition camera connector.
- *1: Before Nov. 2021 Production
- *2: From Nov. 2021 Production
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Before Nov. 2021 Production|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
K22-6 (DIST) - V6-3 (LKSW) |
Always | Below 1 Ω |
|
K22-6 (DIST) or V6-3 (LKSW) - Body ground |
Always | 10 kΩ or higher |
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
K22-6 (DIST) - V21-3 (LKSW) |
Always | Below 1 Ω |
|
K22-6 (DIST) or V21-3 (LKSW) - Body ground |
Always | 10 kΩ or higher |
|
Result | Proceed to |
|---|---|
|
OK (for A25A-FKS) | A |
|
OK (for 2GR-FKS) | B |
|
NG | C |
| B |
| GO TO STEP 6 |
| C |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 5. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM) |
(a) Disconnect the A24 ECM connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
K22-2 (ECC) - A24-28 (ECCS) |
Always | Below 1 Ω |
|
K22-2 (ECC) or A24-28 (ECCS) - Body ground |
Always | 10 kΩ or higher |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
| 6. |
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
K22-2 (ECC) - Body ground |
Always | Below 1 Ω |
| OK | | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Indicator Circuit
DESCRIPTION The LTA indicator output request signal is sent from the forward recognition camera to the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT
NOTICE: When replacin
Components
COMPONENTS ILLUSTRATION
*1 COOL AIR INTAKE DUCT SEAL
*2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY
N*m (kgf*cm, ft.*lbf): Specified torque
- -
SEE MORE:
Dcm Operation History
DCM OPERATION HISTORY DCM OPERATION HISTORY
HINT:
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