Lexus ES manuals

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

  • Harness or connector
  • Parking assist ECU
  • Side television camera assembly RH
  • Outer rear view mirror assembly RH

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When "!" is displayed on the multi-display assembly after the cable is disconnected from the negative (-) auxiliary 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 panoramic view monitor system may be needed.

    Click here

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 Codes

OK:

DTC C1684 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

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

OK

3.

CHECK PARKING ASSIST ECU (RCB+, RGND)

(a) Remove the parking assist ECU with the connector still connected.

*a

Component with harness connected

(Parking Assist ECU)

(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)

Power switch on (IG)

5.5 to 7.05 V

NG

REPLACE PARKING ASSIST ECU

OK

4.

REPLACE SIDE TELEVISION CAMERA ASSEMBLY RH

(a) Replace the side television camera assembly RH with a new or normally functioning one.

Click here

NEXT

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 Codes

OK:

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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