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Home >> Chevrolet >> 2020 >> Camaro SS, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Automatic Transmission - 8L45 (M5T) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0851 >> Component Testing

Component Testing

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  1. Ignition/Vehicle - Off
  2. Remove the component: Automatic Transmission Fluid Pan
  3. Disconnect the electrical connector: B15 Transmission Internal Mode Switch
  4. Test the resistance between the test points: Control terminal 1 & Ground terminal 2

    Verify the resistance between the terminals listed in the table below.

    • Park/Neutral = Less than 2 ohms
    • Reverse = Infinite resistance
    • Drive = Infinite resistance
    • Low = Infinite resistance
    • If not the specified value 

      Replace the component: B15 Transmission Internal Mode Switch

    • Go to next step: If the specified value 
  5. All OK.
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