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Home >> Chevrolet >> 2024 >> Camaro SS, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Manual Transmission - TREMEC 6-Speed (M13 MJK Mm6 MH3) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0801, P088C, or P088D >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition/Vehicle & All vehicle systems - Off
  2. Disconnect the electrical connector: M47 Reverse Inhibit Solenoid Actuator
  3. Ignition - On/Vehicle - In Service Mode
  4. Verify a test lamp turns On between the test points: B+ circuit terminal 2/B & Ground
    • If the test lamp does not turn On and the circuit fuse is OK 
    1. Ignition/Vehicle - Off & Remove - Test lamp
    2. Test for less than 2 ohms between the test points: B+ circuit terminal 2/B & Output terminal@Fuse
      • If 2 ohms or greater - Repair the open/high resistance in the circuit.
      • If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse.
    • If the test lamp does not turn On and the circuit fuse is open 
    1. Ignition/Vehicle - Off & Remove - Test lamp
    2. Test for infinite resistance between the test points: B+ circuit terminal 2/B & Ground
      • If less than infinite resistance - Repair the short to ground on the circuit.
      • If infinite resistance - Replace the component: M47 Reverse Inhibit Solenoid Actuator
    • Go to next step: If the test lamp turns On 
  5. Verify a test lamp does not turn On between the test points: Control circuit terminal 1/A & B+
    • If the test lamp turns On 
    1. Ignition/Vehicle - Off & Remove - Test lamp
    2. Disconnect the appropriate electrical connector: K20 Engine Control Module
    3. Test for infinite resistance between the test points: Control circuit terminal 1/A@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 test lamp does not turn On 
  6. Remove - Test Lamp
  7. Disconnect the appropriate electrical connector: K20 Engine Control Module
  8. Test for less than 1 V between the test points: Control circuit terminal 1/A@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 
  9. Test for less than 2 ohms between the test points: Control 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.

    • Go to next step: If less than 2 ohms 
  10. Perform the following procedure/test: Component Testing

    Verify the component works as specified: M47 Reverse Inhibit Solenoid Actuator

    • If the component does not work as specified 

      Replace the component: M47 Reverse Inhibit Solenoid Actuator

    • Go to next step: If the component works as specified 
  11. Replace the component: K20 Engine Control Module
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