Lexus ES: Over Current Detected in Driver Side Camera (C1687)
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 |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When "!" is displayed on the multi-display assembly after the cable is disconnected from the negative (-) battery terminal, correct the steering angle neutral point.
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-
Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the panoramic view monitor system may be needed.
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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 N43 parking assist ECU connector.
(b) Disconnect the J34 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 |
|---|---|---|
| N43-12 (LCB+) - J34-2 (LCB+) | Always | Below 1 Ω |
| N43-35 (LGND) - J34-1 (LGND) | Always | Below 1 Ω |
| N43-12 (LCB+) or J34-2 (LCB+) - Body ground | Always | 10 kΩ or higher |
| N43-35 (LGND) or J34-1 (LGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | CHECK PARKING ASSIST ECU (LCB+, LGND) |
| (a) Remove the parking assist ECU with the connector still connected. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N43-35 (LGND) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N43-12 (LCB+) - N43-35 (LGND) | Engine switch on (IG) | 5.5 to 7.05 V |
| NG | | REPLACE PARKING ASSIST ECU |
|
| 4. | CHECK SIDE TELEVISION CAMERA ASSEMBLY LH |
(a) Replace the side television camera assembly LH with a new or normally functioning one.
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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.
| OK | | END (SIDE TELEVISION CAMERA ASSEMBLY LH IS DEFECTIVE) |
| NG | | REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH |
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SEE MORE:
System Diagram
SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method Certification ECU (smart key ECU assembly) Main body ECU (multiplex network body ECU) Luggage electrical key switch signal CAN Combination meter assembly Main body ECU (multiplex
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the fuel lid opener system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm that the problem sym
