P0906 – Gear Shift Position Low

Description

The ECM detects a low voltage condition in the gear shift position circuit.

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Symptoms

  • Harsh shifting
  • Wrong gear display
  • No shift

Causes

  • Short to ground
  • Faulty sensor
  • Wiring issues

Diagnosis

  • Monitor sensor voltage
  • Inspect wiring
  • Check linkage

Repair

  • Repair wiring
  • Replace sensor

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