What does code P1187 mean?

Q: What does code P1187 mean?

Variant Selection. P1187 on Ford vehicles indicates a variant selection fault, meaning the powertrain control module (PCM) has detected an invalid or unrecognized configuration code for the vehicle's emission control system. The PCM expects a specific variant code that matches the vehicle's hardware and software, but the value it reads does not match any known configuration, often due to a mismatch after a module replacement or programming error.

DTC codes / Ford codes / P1187

P1187 · FordVariant Selection

P1187 on Ford vehicles indicates a variant selection fault, meaning the powertrain control module (PCM) has detected an invalid or unrecognized configuration code for the vehicle's emission control system. The PCM expects a specific variant code that matches the vehicle's hardware and software, but the value it reads does not match any known configuration, often due to a mismatch after a module replacement or programming error.

SystemPowertrain

Code typeFord specific

SeverityMedium

Fix difficultyProfessional

AreaFuel and air metering

Guidance is general and written for Ford vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.