LEMON Manuals: Even more car manuals for everyone
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 P0201-P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P1248-P124D, P2147, P2148, P2150, P2151, P2153, P2154, P2156, P2157, P216B, P216C, P216E, or P216F >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.

Test 1

  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: Control Circuit - Voltage Supply @ Control module harness & Ground
    • If less than infinite resistance 
    1. Disconnect the appropriate electrical connector: Q17 Fuel Injector
    2. Test for infinite resistance between the test points: Control Circuit - 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: Control Circuit - 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: Control Circuit - 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: Control Circuit - 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: Control Circuit - Voltage Control
    • Go to next step: If less than 1 V 
  6. Ignition/Vehicle - Off
  7. Test for less than 3 ohms between the test points: Control Circuit - Voltage Supply & Control Circuit - Voltage Control@ Control module harness
    • If 3 ohms or greater 
    1. Disconnect the appropriate electrical connector: Q17 Fuel Injector
    2. Test for less than 2 ohms between the test points:
      • Control Circuit - Voltage Control @ Control module harness & The other end of the circuit@ Component harness
      • Control Circuit - 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.
      • If less than 2 ohms - Test or replace the component: Q17 Fuel Injector
    • Go to next step: If less than 3 ohms 
  8. Replace the component: K20 Engine Control Module

Test 2

  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: Control Circuit - 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: Control Circuit - 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: Control Circuit - 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: Control Circuit - 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: Control Circuit - 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: Control 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:
    • Control Circuit - Voltage Control @ Control module harness & The other end of the circuit@ Component harness
    • Control Circuit - 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 - Voltage Control & Control Circuit - Voltage Supply@ Component harness
    • If less than infinite resistance 

      Repair the short between the circuits.

    • Go to next step: If infinite resistance 
  10. Perform the following procedure/test: Component Testing

    Verify the procedure/test passes.

    • If the procedure/test does not pass 

      Replace the component: Q17 Fuel Injector

    • Go to next step: If the procedure/test passes 
  11. Replace the component: K20 Engine Control Module

Test 3

  1. Ignition/Vehicle - Off
  2. Disconnect the appropriate electrical connector: K20 Engine Control Module
  3. Disconnect the appropriate electrical connector: Q17 Fuel Injector
  4. 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 
  5. Perform the following procedure/test: Component Testing

    Verify the procedure/test passes.

    • If the procedure/test does not pass 

      Replace the component: Q17 Fuel Injector

    • Go to next step: If the procedure/test passes 
  6. Replace the component: K20 Engine Control Module
scientia non olet · About LEMON Manuals