Lexus ES: Side Camera Current Malfunction (C1684)
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 passenger side television camera assembly to the parking assist ECU.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1684 | Side Camera Current Malfunction | 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 C1684 is not output.
| OK |  | USE SIMULATION METHOD TO CHECK |
|
| 2. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - OUTER REAR VIEW MIRROR ASSEMBLY RH) |
(a) Disconnect the N43 parking assist ECU connector.
(b) Disconnect the J12 outer rear view mirror assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| N43-40 (RCB+) - J12-2 (RCB+) | Always | Below 1 Ω |
| N43-17 (RGND) - J12-1 (RGND) | Always | Below 1 Ω |
| N43-40 (RCB+) or J12-2 (RCB+) - Body ground | Always | 10 kΩ or higher |
| N43-17(RGND) or J12-1 (RGND) - Body ground | Always | 10 kΩ or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 3. | CHECK PARKING ASSIST ECU (RCB+, RGND) |
| (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 |
|---|---|---|
| N43-17 (RGND) - 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 |
|---|---|---|
| N43-40 (RCB+) - N43-17 (RGND) | Engine switch on (IG) | 5.5 to 7.05 V |
| NG | | REPLACE PARKING ASSIST ECU |
|
| 4. | REPLACE SIDE TELEVISION CAMERA ASSEMBLY RH |
(a) Replace the side television camera assembly RH 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:
DTCs C1684 is not output.
| OK | | END (SIDE TELEVISION CAMERA ASSEMBLY RH IS DEFECTIVE) |
| NG | | REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH |
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Driver Side Camera Video Sync Signal Malfunction (C1686)
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 camer
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 camer
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DESCRIPTION This DTC is stored when the rear television camera assembly judges that the back camera initial setting has not been memorized (rear television camera assembly optical axis adjustment (bac
SEE MORE:
Removal
REMOVAL PROCEDURE 1. REMOVE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT DOOR UPPER ARMREST BASE PANEL Click here 2. REMOVE OUTER MIRROR SWITCH ASSEMBLY (a) Using a screwdriver, disengage the 4 claws and remove the outer mirror switch assembly. HINT: Tape the screwdriver tip before use
Illumination for Panel Switch does not Come on with Tail Switch ON
CAUTION / NOTICE / HINT NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.
Click here
When replacing the radio receiver assembly, always re
