Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Front Camera Current Malfunction (C1682)
DESCRIPTION
DTC C1682 is stored if the parking assist ECU judges as a result of its self check that there is a problem with the current supplied from the front television camera assembly connected to the parking assist ECU.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1682 | Front Camera Current Malfunction | Open or short in the front television camera signal circuit |
|
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 panoramic view monitor system may be needed.
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PROCEDURE
| 1. | CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA ASSEMBLY) |
(a) Disconnect the J158 parking assist ECU connector.
(b) Disconnect the p1 front television camera assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J158-15 (BCB+) - p1-6 (BCB+) | Always | Below 1 Ω |
| J158-37 (BGND) - p1-5 (BGND) | Always | Below 1 Ω |
| J158-15 (BCB+) or p1-6 (BCB+) - Body ground | Always | 10 kΩ or higher |
| J158-37 (BGND) or p1-5 (BGND) - Body ground | Always | 10 kΩ or higher |
| NG | .gif) | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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| 2. | CHECK PARKING ASSIST ECU (BCB+, BGND) |
| (a) Connect the J158 parking assist ECU connector. |
|
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(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| J158-37 (BGND) - 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 |
|---|---|---|
| J158-15 (BCB+) - J158-37 (BGND) | Engine switch on (IG) | 5.5 to 7.05 V |
| OK | | REPLACE FRONT TELEVISION CAMERA ASSEMBLY |
| NG | | REPLACE PARKING ASSIST ECU |
Front Camera Feedback Malfunction (C1681)
DESCRIPTION DTC C1681 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 front television camera ass ...
Side Camera Feedback Malfunction (C1683)
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 ca ...
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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