Ford Codes List

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

Repair Order

655 Ford-enhanced codes on file

Code
P1186

Fuel Pump Temperature Sensor Low (Diesel)

Category
Powertrain - Fuel/Air Metering
Severity
Check Engine Light
Applies to
F-250/F-350 Super Duty diesel models
Related
No single generic twin. See OBD Codes List

Findings, check these first

  • Open pump temperature circuit
  • Failed sensor reading low
  • Damaged wiring
  • Connector corrosion
  • Module reference fault

Standard procedure

  1. Test circuit continuity
  2. Measure sensor resistance
  3. Inspect the connector
  4. Repair wiring faults
  5. Replace the sensor if the circuit is intact

Code lookup

Type a code above, or start from a symptom or a common code.

Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.

Sources and review

Review: checked against the recorded source material.

  • OBDII.pro: P1186 Ford definition

    live reference page (obdii.pro)

    Supports: Ford-family meaning for P1186: FTS Low - Fuel Pump Temperature Sensor Low

    Fetched directly. obdii.pro is a publisher independent of the engine-codes family.

  • P1186 FORD Code: Meaning, Causes, and Symptoms | OBD2 Codes

    live reference page (obd2-codes.co)

    Supports: Ford meaning for P1186: Fuel Pump Temperature Sensor Low

    Fetched directly. obd2-codes.co phrasing matches the engine-codes family, so it counts as one publisher.

Last updated 2026-09-05.

Report a correction for P1186. Include your vehicle, the issue and a source if you have one.

Related Fuel/Air Metering codes