Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Back Camera Initialization Incomplete (C1691)

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Audio & Visual & Telematics / Park Assist / Monitoring / Parking Assist Monitor System / Back Camera Initialization Incomplete (C1691)

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 (back camera position setting) is incomplete).

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1691

Back Camera Initialization Incomplete

Back camera initial setting has not been memorized (rear television camera assembly optical axis adjustment (back camera position setting) is incomplete)
  • Rear television camera assembly optical axis adjustment (back camera position setting)
  • Rear television camera assembly

CAUTION / NOTICE / HINT

NOTICE:

  • When "!" mark is displayed on the multi-display assembly after disconnecting the cable from the negative (-) battery terminal, correct the steering angle neutral point.

    Click here

  • 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 parking assist monitor system may be needed.

    Click here

PROCEDURE

1.

PERFORM CALIBRATION

(a) Perform the following procedure depending on the memory conditions to register the vehicle information into the rear television camera assembly.

(1) Rear television camera assembly optical axis adjustment (back camera position setting).

Click here

NEXT

2.

CHECK DTC OUTPUT

(a) Clear the DTCs.

Click here

Chassis > Rear Camera > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Click here

Chassis > Rear Camera > Trouble Codes

HINT:

  • If DTC C1691 is output, perform the rear television camera assembly optical axis adjustment (back camera position setting) again.
  • If DTC C1691 is still output after performing the rear television camera assembly optical axis adjustment 3 times, replace the rear television camera assembly.

Result

Proceed to

DTC C1691 is output

A

DTC C1691 is not output

B
A

REPLACE REAR TELEVISION CAMERA ASSEMBLY

B

END
    Vehicle Information Unmatched (C168D)
    DESCRIPTION This DTC is stored if the rear television camera assembly judges as a result of its self check that the vehicle information received from the main body ECU (multiplex network body ECU) via ...

    Steering Angle Initialization Incomplete (C1694)
    DESCRIPTION This DTC is stored when the rear television camera assembly judges that the maximum steering angle has not been memorized (steering angle setting is incomplete). DTC No. Detection Ite ...

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