DTC C1682: Front Camera Current Malfunction [06/2018 - 09/2022]: Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2022 Lexus ES 350, 2022 Lexus ES 250, 2021 Lexus ES 350, 2021 Lexus ES 250, and 2020 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA ASSEMBLY)
- Disconnect the N43 parking assist ECU connector.
- Disconnect the B5 front television camera assembly connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition N43-15 (BCB+) - B5-6 (BCB+) Always Below 1 Ω N43-37 (BGND) - B5-5 (BGND) Always Below 1 Ω N43-15 (BCB+) or B5-6 (BCB+) - Body ground Always 10 kΩ or higher N43-37 (BGND) or B5-5 (BGND) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 2
- CHECK PARKING ASSIST ECU (BCB+, BGND)
- Remove the parking assist ECU with the connector still connected.
*a Component with harness connected
(Parking Assist ECU) - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition N43-37 (BGND) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition N43-15 (BCB+) - N43-37 (BGND) Engine switch on (IG) 5.5 to 7.05 V Result
Proceed to OK NG
Result:
OK
REPLACE FRONT TELEVISION CAMERA ASSEMBLY. Refer to REMOVAL [06/2018 - 09/2022]
Result:
NG
REPLACE PARKING ASSIST ECU. Refer to REMOVAL [06/2018 - 09/2022]
- Remove the parking assist ECU with the connector still connected.