DESCRIPTION
The forward recognition camera communicates with the steering vibration ECU via LIN communication.
If a communication error between the forward recognition camera and steering vibration ECU is detected, DTC C1A7587 is stored.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1A7587 | Steering Vibrator System Missing Message | While the vehicle is being driven at 5 km/h (4 mph) or more and the lane control system is on, a LIN communication error is detected between the steering vibration ECU and forward recognition camera for approximately 5 minutes or more. |
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
HINT:
Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.
One Time Recognition: Click here
Sequential Recognition: Click here
Click here
PROCEDURE
1. | INSPECT SPIRAL CABLE SUB-ASSEMBLY |
(a) Remove the spiral cable sub-assembly.
Click here
(b) Inspect the spiral cable sub-assembly.
Click here
NG | ![]() | REPLACE SPIRAL CABLE SUB-ASSEMBLY |
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2. | INSPECT FORWARD RECOGNITION CAMERA (WAVEFORM) |
(a) Turn the engine switch on (IG).
(b) Using an oscilloscope, measure the waveform at the J29 spiral cable sub-assembly connector. Measurement Condition:
NOTICE: The oscilloscope waveform is for reference only and does not include noise, fluctuations, etc. OK: A waveform similar to that in the illustration can be observed. |
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NG | ![]() | GO TO STEP 5 |
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3. | CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - POWER SOURCE) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
J23-4 (BHT) - Body ground | Engine switch on (IG) | 11 to 14 V |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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4. | 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 |
---|---|---|
J23-2 (EHT) - Body ground | Always | Below 1 Ω |
OK | ![]() | REPLACE STEERING VIBRATION ECU |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
5. | CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA) |
(a) Disconnect the U14 forward recognition camera connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J29-9 (LDA) - U14-2 (STRV) | Always | Below 1 Ω |
J29-9 (LDA) or U14-2 (STRV) - Body ground | Engine switch off | 10 kΩ or higher |
OK | ![]() | REPLACE FORWARD RECOGNITION CAMERA |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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