POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM IG Power Source Circuit

DTC Code DTC Name
IG Power Source Circuit

DESCRIPTION

When the engine switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU.

The multiplex tilt and telescopic ECU also receives engine switch signals via this circuit.

WIRING DIAGRAM

C159209E23

CAUTION / NOTICE / HINT

Note:

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

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY)

    1. C197979C04

      *a

      Rear view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

      Disconnect the G33 multiplex tilt and telescopic ECU connector.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      G33-8 (IG) - Body ground

      Engine switch on (IG)

      11 to 14 V

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND)

    1. C197979C02

      *a

      Rear view of wire harness connector

      (to Multiplex Tilt and Telescopic ECU)

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G33-11 (GND) - Body ground

      Always

      Below 1 Ω

      Result

      Result

      OK

      NG
    OK

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU

    Click hereClick here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR