DESCRIPTION
This DTC is stored if the parking assist ECU judges as a result of its self check that a synchronization problem is occurring in the image signal sent from the driver side television camera assembly to the parking assist ECU.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
C1687 | Over Current Detected in Driver Side Camera | Side camera current malfunction |
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
Click here
PROCEDURE
1. | CHECK FOR DTC |
(a) Clear the DTCs.
Chassis > Circumference Monitoring Camera Control Module > Clear DTCs(b) Check for DTCs.
Chassis > Circumference Monitoring Camera Control Module > Trouble CodesOK:
DTC C1687 is not output.
OK | ![]() | USE SIMULATION METHOD TO CHECK |
|
2. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY LH) |
(a) Disconnect the J158 parking assist ECU connector.
(b) Disconnect the N1 outer rear view mirror assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J158-12 (LCB+) - N1-2 (LCB+) | Always | Below 1 Ω |
J158-35 (LGND) - N1-1 (LGND) | Always | Below 1 Ω |
J158-12 (LCB+) or N1-2 (LCB+) - Body ground | Always | 10 kΩ or higher |
J158-35 (LGND) or N1-1 (LGND) - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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3. | CHECK PARKING ASSIST ECU (LCB+, LGND) |
(a) Connect the J158 parking assist ECU connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J158-35 (LGND) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Switch Condition | Specified Condition |
---|---|---|
J158-12 (LCB+) - J158-35 (LGND) | Engine switch on (IG) | 5.5 to 7.05 V |
NG | ![]() | REPLACE PARKING ASSIST ECU |
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4. | REPLACE SIDE TELEVISION CAMERA ASSEMBLY LH |
(a) Replace the side television camera assembly LH with a new or normally functioning one.
Click here
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5. | CHECK FOR DTC |
(a) Clear the DTCs.
Chassis > Circumference Monitoring Camera Control Module > Clear DTCs(b) Check for DTCs.
Chassis > Circumference Monitoring Camera Control Module > Trouble CodesOK:
DTC C1687 is not output.
Result | Proceed to |
---|---|
OK | A |
NG (w/ Power Retract Mirror) | B |
NG (w/o Power Retract Mirror) | C |
A | ![]() | END (SIDE TELEVISION CAMERA ASSEMBLY LH WAS DEFECTIVE) |
B | ![]() | REPLACE OUTER MIRROR RETRACTOR LH |
C | ![]() | REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Lighting (ext): Rear Turn Signal Light Bulb
ReplacementREPLACEMENT CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
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