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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission - 8L45 (M5N) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P171D >> Diagnostic Fault Information

Diagnostic Fault Information

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Component DTC Condition
12345 Reverse Clutch Assembly P171D
  • Blocked or restricted component: Fluid/oil passage
  • Clutch Plates - Worn
  • Damaged O-ring.
B280 Automatic Transmission Accumulator Solenoid Valve P171D
  • Binding, sticking or stuck component: Solenoid Valve
  • Damaged or missing component:
    • Accumulator Valve Body Bolt
    • Solenoid Valve
Transmission Accumulator P171D
  • Blocked or restricted component: Fluid/oil passage
  • Check ball #20, 21 missing or damaged.
  • Leaking component: Transmission Accumulator
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