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2016 PORSCHE CAYENNE GTS
3.6L Twin Turbo V6•AWD•AUTOMATIC•gas•MCX.KA•turbo
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor490Torque709Fluid10DTC1847Battery1Maintenance0Recalls2
P0884moderate severityPowertrain

TCM Power Input Signal Intermittent

on 2016 Porsche Cayenne GTS 3.6L Twin Turbo V6 · AWD

What this code means

The TCM power input signal is cutting in and out intermittently. This is usually a loose connection or chafed wire.

Symptoms

  • Intermittent shift faults
  • Warning light comes and goes
  • Momentary loss of gear selection

Common causes

  • Loose or corroded TCM connector
  • Chafed or broken wire
  • Poor ground connection
  • Faulty transmission control module

Diagnostic steps

  1. Wiggle-test TCM harness while monitoring voltage
  2. Inspect and clean connectors
  3. Check grounds for integrity
  4. Repair intermittent wiring faults
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