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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Engine Controls And Fuel - 4.3L (LV1) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0010, P0011, P2088, or P2089 >> Circuit/System Testing

Circuit/System Testing

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

    It may take up to 2 min for all vehicle systems to power down before an accurate ground or low Reference circuit continuity test can be performed.

  1. Ignition/Vehicle & All vehicle systems - Off
  2. Disconnect the appropriate electrical connector : Q6 Camshaft Position Actuator Solenoid Valve
  3. Test for less than 10 ohms between the test points : Low Reference circuit terminal 1/A & Ground
    • If 10 ohms or greater 
    1. Disconnect the electrical connector : K20 Engine Control Module
    2. Test for less than 2 ohms between the test points : Low Reference circuit terminal 1/A @ Component harness & The other end of the circuit @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component : K20 Engine Control Module
    • Go to next step : If less than 10 ohms 
  4. Engine - Running
  5. Perform the scan tool control function :

    Camshaft Position Actuator Solenoid Valve - Off

    Verify a test lamp does not turn On between the test points : Control circuit terminal 2/B & Ground

    • If the test lamp turns On 
    1. Ignition/Vehicle - Off & Remove - Test lamp
    2. Disconnect the electrical connector : K20 Engine Control Module
    3. Ignition - On / Vehicle - In Service Mode
    4. Test for less than 1 V between the test points : Control circuit terminal 2/B @ Component harness & The other end of the circuit @ Control module harness
      • If 1 V or greater - Repair the short to voltage on the circuit.
      • If less than 1 V - Replace the component : K20 Engine Control Module
    • Go to next step : If the test lamp does not turn On 
  6. Remove - Test Lamp
  7. Perform the scan tool control function :

    Camshaft Position Actuator Solenoid Valve - On

    • Verify the scan tool parameter :
    • Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Test Status = OK or Not Run
    • If not the specified state 
    1. Ignition/Vehicle - Off
    2. Disconnect the electrical connector : K20 Engine Control Module
    3. Test for infinite resistance between the test points : Control circuit terminal 2/B @ Component harness & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • If infinite resistance - Replace the component : K20 Engine Control Module
    • Go to next step : If the specified state 
  8. Connect a 3 A fused jumper wire between the test points : Control circuit terminal 2/B & Ground
  9. Perform the scan tool control function :
    • Camshaft Position Actuator Solenoid Valve - On
    • Verify the scan tool parameter :
    • Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Test Status = Malfunction
    • If not the specified state 
    1. Ignition/Vehicle - Off & Remove - Jumper wire(s)
    2. Disconnect the electrical connector : K20 Engine Control Module
    3. Test for less than 2 ohms between the test points : Control circuit terminal 2/B @ Component harness & The other end of the circuit @ Control module harness
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Replace the component : K20 Engine Control Module
    • Go to next step : If the specified state 
  10. Verify DTC P0011 is not set.
    • If the DTC is set 
    1. Ignition/Vehicle - Off
    2. Inspect the component for wear or damage :
      • If worn or Visible Damage - Repair or replace as necessary
    • Go to next step : If the DTC is not set 
  11. Test or replace the component : Q6 Camshaft Position Actuator Solenoid Valve