Lexus ES manuals

Lexus ES: Open or Short in Steering Angle Sensor +B (C1625)

DESCRIPTION

This DTC is stored if the clearance warning ECU assembly receives a signal via CAN communication from the steering sensor that indicates a power supply problem.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1625

Open or Short in Steering Angle Sensor +B

Open or short in steering sensor power source

  • Harness or connector
  • Steering sensor

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

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  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (STEERING SENSOR POWER SOURCE)

(a) Disconnect the G62 steering sensor connector.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G62-9 (IG1) - G62-6 (ESS)

Power switch on (IG)

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

2.

CHECK HARNESS AND CONNECTOR (STEERING SENSOR POWER SOURCE)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

G62-6 (ESS) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G62-4 (BAT) - G62-6 (ESS)

Always

11 to 14 V*1

10.5 to 16 V*2

  • *1: w/o Stop and Start System
  • *2: w/ Stop and Start System
OK

REPLACE STEERING SENSOR

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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