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Home >> Lexus >> 2003 >> GS 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 189 (Combination Meter System) >> Circuit Inspection >> Igniter Signal Circuit >> Inspection Procedure >> When using hand-held tester:
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When using hand-held tester:

WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check tachometer value. 

    PREPARATION: 

    1. Connect the hand-held tester to the DLC3.
    2. Turn ignition switch ON and hand-held tester main switch ON.
    3. Select the DATALIST mode on the hand-held tester.

    CHECK: 

    When running the engine, check that parameter value of "Tachometer" changes on the screen of the hand held tester.

    OK: 

    The revolutions displayed on the screen of the tester changes as the engine rotates. 

    1. OK: Replace combination meter. 
    2. NG: Go to Next Step. 
  2. Check harness and connector between combination meter and ECM (See  O/D DIRECT CLUTCH SPEED SENSOR  ). 
    1. NG: Repair or replace harness or connector. 
    2. OK: Go to next step. 

      Check igniter circuit (See  DTC P0130 Oxygen Sensor Circuit (Bank 1 Sensor 1), DTC P0150 Oxygen Sensor Circuit (Bank 2 Sensor 1), DTC P2195 Oxygen Sensor Signal Stack Lean (Bank 1 Sensor 1), DTC P2196 Oxygen Sensor Signal Stack Rich (Bank 1 Sensor 1), DTC P2197 Oxygen Sensor Signal Stack Lean (Bank 2 Sensor 1), DTC P2198 Oxygen Sensor Signal Stack Rich (Bank 2 Sensor 1)  and  DTC P0130 Oxygen Sensor Circuit (Bank 1 Sensor 1), DTC P0150 Oxygen Sensor Circuit (Bank 2 Sensor 1), DTC P2195 Oxygen Sensor Signal Stack Lean (Bank 1 Sensor 1), DTC P2196 Oxygen Sensor Signal Stack Rich (Bank 1 Sensor 1), DTC P2197 Oxygen Sensor Signal Stack Lean (Bank 2 Sensor 1), DTC P2198 Oxygen Sensor Signal Stack Rich (Bank 2 Sensor 1)  ). 



  1. Check tachometer value. 

    PREPARATION: 

    1. Connect the hand-held tester to the DLC3.
    2. Turn ignition switch ON and hand-held tester main switch ON.
    3. Select the DATALIST mode on the hand-held tester.

    CHECK: 

    When running the engine, check that parameter value of "Tachometer" changes on the screen of the hand held tester.

    OK: 

    The revolutions displayed on the screen of the tester changes as the engine rotates. 

    1. OK: Replace combination meter. 
    2. NG: Go to Next Step 
  2. Check harness and connector between combination meter and ECM (See  O/D DIRECT CLUTCH SPEED SENSOR  ). 
    1. NG: Repair or replace harness or connector. 
    2. OK: Go to next step. 

      Check igniter circuit (See  DTC P0130 Oxygen Sensor Circuit (Bank 1 Sensor 1), DTC P0150 Oxygen Sensor Circuit (Bank 2 Sensor 1), DTC P2195 Oxygen Sensor Signal Stack Lean (Bank 1 Sensor 1), DTC P2196 Oxygen Sensor Signal Stack Rich (Bank 1 Sensor 1), DTC P2197 Oxygen Sensor Signal Stack Lean (Bank 2 Sensor 1), DTC P2198 Oxygen Sensor Signal Stack Rich (Bank 2 Sensor 1)  and  DTC P0130 Oxygen Sensor Circuit (Bank 1 Sensor 1), DTC P0150 Oxygen Sensor Circuit (Bank 2 Sensor 1), DTC P2195 Oxygen Sensor Signal Stack Lean (Bank 1 Sensor 1), DTC P2196 Oxygen Sensor Signal Stack Rich (Bank 1 Sensor 1), DTC P2197 Oxygen Sensor Signal Stack Lean (Bank 2 Sensor 1), DTC P2198 Oxygen Sensor Signal Stack Rich (Bank 2 Sensor 1)  ). 

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