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Home >> GMC >> 2022 >> Acadia SLE, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T60 (M3G) Or 9T65 (M3W) - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC P187D, P18E7, or P18E8 >> Diagnostic Fault Information

Diagnostic Fault Information

NOTE:

The components are listed from the least to the most intrusive to service.

Component DTC Condition

Control Valve Body

  • Mode 2 Electronic Transmission Range Selector Valve
  • Electronic Transmission Range Selector Mode Enable Valve/Spring
 P187D, P18E7, P18E8
  • Binding, sticking or stuck component: Valve
  • Debris on the component.
  • Damaged component:
    • Valve or Bore - Scored
    • Spring

Control Solenoid Valve Body

  • Mode 1 Electronic Transmission Range Selector Valve
 P187D, P18E7, P18E8
  • Binding, sticking or stuck component: Valve
  • Debris on the component.
  • Damaged component:
    • Valve or Bore - Scored
    • Spring
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