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TorqueMech OBD Code Guide

P0318 - Rough Road Sensor A Signal Circuit

The ECM detected a fault in rough-road sensor A signal circuit.

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Code Overview

The ECM detected a fault in rough-road sensor A signal circuit.

Common Causes

  • Failed rough-road sensor
  • Wiring problem
  • Module communication issue

Diagnostic Steps

  1. Inspect sensor wiring and connectors
  2. Check for related ABS or chassis faults
  3. Verify the signal with scan data if supported

Likely Repairs & Cost Guides

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Related OBD Codes

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P0317
Rough Road Hardware Not Present
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P0319
Rough Road Sensor B Signal Circuit
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P0316
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P0315
Crankshaft Position System Variation Not Learned
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P0314
Single Cylinder Misfire Detected
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