Ford Codes List

Ford-enhanced trouble code lookup
for Ford, Lincoln and Mercury.

Repair Order

655 Ford-enhanced codes on file

Code
P1171

Rotor Control Fault

Category
Powertrain - Ignition
Severity
Check Engine Light
Applies to
1990s Ford V8 models

Findings, check these first

  • Failed rotor control circuit
  • Open or shorted control wiring
  • Faulty control module
  • Poor ground to the module
  • Corroded connections

Standard procedure

  1. Check module power and ground
  2. Test the control circuit
  3. Inspect connectors for corrosion
  4. Verify module command signals
  5. Replace the module after circuit confirmation

Code lookup

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Sources and review

Review: checked against the recorded source material.

Last updated 2026-09-05.

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