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Home >> Chevrolet >> 2024 >> Camaro SS, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Engine Controls And Fuel - 3.6L - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures (1 Of 2) >> DTC P0128 or P01F0 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector: K20 Engine Control Module
  3. Disconnect the electrical connector: X164 Inline Harness Connector
  4. Test for less than 2 ohms between the test points: Low Reference circuit@Inline Harness Connector & The other end of the circuit@Control module harness
    • If 2 ohms or greater - Repair the open/high resistance in the circuit.
    • Go to next step: If less than 2 ohms
  5. Test for less than 2 ohms between the test points: Signal circuit@Inline Harness Connector & The other end of the circuit@Control module harness
    • If 2 ohms or greater - Repair the open/high resistance in the circuit.
    • Go to next step: If less than 2 ohms
  6. Disconnect the electrical connector: B34 Engine Coolant Temperature Sensor
  7. Test for less than 2 ohms between the test points: Low Reference circuit@ Component harness & The other end of the circuit@X164 Inline Harness
    • If 2 ohms or greater - Repair the open/high resistance in the circuit.
    • Go to next step: If less than 2 ohms
  8. Test for less than 2 ohms between the test points: Signal circuit@ Component harness & The other end of the circuit@X164 Inline Harness
    • If 2 ohms or greater - Repair the open/high resistance in the circuit.
    • Go to next step: If less than 2 ohms
  9. Test or replace the component: B34 Engine Coolant Temperature Sensor
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