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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (Manual Transmission - TREMEC 6-Speed (M3L Mg9)) >> Diagnostic Information and Procedures >> DTC P088C or P088D: Reverse Inhibit Solenoid Actuator >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

Static Test

  1. Ignition/Vehicle Off
  2. Disconnect the electrical connector: M47 Reverse Inhibit Solenoid Actuator
  3. NOTE:

    The component's temperature should be 20 to 22°C (68 to 72°F) while testing.

  4. Test for 10 to 18 Ω between the test points: Control terminal 1/A & B+ terminal 2/B
    • If not between 10 and 18 Ω 

      Replace the component: M47 Reverse Inhibit Solenoid Actuator

    • If between 10 and 18 Ω 
  5. Test for infinite resistance between the test points: Each terminal of the component & the component's housing
    • If less than infinite resistance 

      Replace the component: M47 Reverse Inhibit Solenoid Actuator

    • If infinite resistance 
  6. All OK.