OBD Codes List

Diagnostic reference · P0918

P0918

Gear Shift Position Circuit A Intermittent

System
Transmission (P code)
Lamp
Check Engine Light
Category
Powertrain - Transmission

What it means

P0918 means Gear Shift Position Circuit A Intermittent.

Check these first

  • A gear shift position sensor A connector losing contact
  • Chafed sensor A wiring at the shifter
  • A sensor A element failing when hot
  • A loose shifter adding noise to the signal

What to do next

  1. Road test and watch gear shift position A data
  2. Wiggle test the sensor A connector and harness
  3. Sweep the shifter and watch for dropouts
  4. Check the shifter linkage for loose hardware
  5. Replace the sensor if the signal drops
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.