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POWER STEERING SYSTEM(w/ Variable Flow Control Solenoid Valve) IG Power Source Circuit

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DTC Code DTC Name
  IG Power Source Circuit
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DESCRIPTION

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

Table 1. *a from IG Circuit *b ECU-IG NO. 3 *c Power Steering ECU
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


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    CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND)


    1. A01X0K0E01

      Disconnect the power steering ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E102-5 (IG) - Body ground Engine switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E102-3 (GND) - Body ground Always Below 1 Ω
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to Power Steering ECU)

    • OK

      PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR