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Home >> Chevrolet >> 2023 >> Camaro ZL1, 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Engine Controls And Fuel - 2.0L - Diagnostic Information And Procedures (2 Of 3)) >> Diagnostic Information and Procedures >> DTC P02EE-P02F1, P10A3-P10A9, P10AA, P2B00-P2B03, P2B08, P2B09, P2B0A, P2B0B, P2B95, P2B96, or P30D4 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition/Vehicle - Off
    2. NOTE:
    • For detailed component terminal information, refer to: Engine Controls Wiring Schematics
    • This procedure uses the following circuit names:
      • Voltage Control@Control circuit terminal 1
      • Voltage Supply@Control circuit terminal 2
    • Perform this diagnostic for the component that set the DTC.
  2. Disconnect the appropriate electrical connector: K20 Engine Control Module
  3. Test for infinite resistance between the test points: Voltage Supply & Ground
    • If less than infinite resistance 
    1. Disconnect the appropriate electrical connector: Q17 Fuel Injector
    2. Test for infinite resistance between the test points: Voltage Supply @ Control module harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • Go to next step: If infinite resistance
    3. Test for infinite resistance between the test points: Voltage Control @ Control module harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • If infinite resistance - Test or replace the component: Q17 Fuel Injector
    • Go to next step: If infinite resistance 
  4. Ignition - On/Vehicle - In Service Mode
  5. Test for less than 1 V between the test points: Voltage Supply @ Control module harness & Ground
    • If 1 V or greater 
    1. Disconnect the appropriate electrical connector: Q17 Fuel Injector
    2. Test for less than 1 V between the test points: Voltage Supply @ Control module harness & Ground
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Repair the short to voltage on the circuit: Voltage Control
    • Go to next step: If less than 1 V 
  6. Ignition/Vehicle - Off
  7. Disconnect the appropriate electrical connector: Q17 Fuel Injector
  8. Test for less than 2 ohms between the test points:
    • Voltage Control @ Control module harness & The other end of the circuit@Component harness
    • Voltage Supply @ Control module harness & The other end of the circuit@Component 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 for infinite resistance between the test points: Control circuit terminal 1 & Control circuit terminal 2@Component harness
    • If less than infinite resistance 

      Repair the short between the circuits.

    • Go to next step: If infinite resistance 
  10. Replace the component: Q17 Fuel Injector
  11. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

    Verify the DTC does not set.

    • If the DTC sets 

      Replace the component: K20 Engine Control Module

    • Go to next step: If the DTC does not set 
  12. All OK.
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