SFI SYSTEM (w/o Secondary Air Injection System) Starter Signal Circuit

DESCRIPTION

While the engine is being cranked, the positive battery voltage is applied to terminal STA of the ECM.

WIRING DIAGRAM

A01BFGTE02

INSPECTION PROCEDURE

The following troubleshooting flowchart is based on the premise that the engine is cranked normally. If the engine will not crank, proceed to the problem symptoms table. Click here

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (STA SIGNAL)


    1. Connect an intelligent tester to the DLC3.

    2. Turn the ignition switch to ON position and turn the tester on.

    3. Select the following menu items: Powertrain / Engine and ECT / Data List / Starter Sig.

    4. Check the value displayed on the tester when the ignition switch is turned to ON and START positions.

      OK
      Ignition Switch Positions ON START
      Starter Sig OFF ON

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    NG

  2. CHECK HARNESS AND CONNECTOR (ECM - ST RELAY)


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT STARTER RELAY


    NG

    REPLACE STARTER RELAY

    OK

    REPLACE ECM