Lexus ES manuals

Lexus ES: 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

  • Harness or connector
  • Front television camera assembly
  • Parking assist ECU

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 HARNESS AND CONNECTOR (PARKING ASSIST ECU - FRONT TELEVISION CAMERA ASSEMBLY)

(a) Disconnect the N43 parking assist ECU connector.

(b) Disconnect the B5 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

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

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

CHECK PARKING ASSIST ECU (BCB+, BGND)

(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

N43-37 (BGND) - Body ground

Always

Below 1 Ω

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

N43-15 (BCB+) - N43-37 (BGND)

Power switch on (IG)

5.5 to 7.05 V

OK

REPLACE FRONT TELEVISION CAMERA ASSEMBLY

NG

REPLACE PARKING ASSIST ECU

READ NEXT:

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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

 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 ca

 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

SEE MORE:

 System Description

SYSTEM DESCRIPTION HEATED STEERING WHEEL SYSTEM (a) The heated steering wheel system heats the steering wheel assembly when the system is turned on using the steering wheel heater switch (refreshing seat switch) or steering wheel heater switch (multi-display assembly). (b) The heated steering wheel

 Components

COMPONENTS ILLUSTRATION *1 LUGGAGE COMPARTMENT FLOOR MAT *2 SPARE WHEEL COVER TRAY ILLUSTRATION *1 REAR FLOOR FINISH PLATE *2 LUGGAGE HOLD BELT STRIKER ASSEMBLY ILLUSTRATION *A for LH Side *B for RH Side *C w/o Power Trunk Lid System *D w/ Power Trunk Li

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