What does code P1320 mean?

Q: What does code P1320 mean?

IC Module 4X Ref Circuit Intermittent No Pulses. P1320 on a Chrysler vehicle means the powertrain control module (PCM) is not receiving a steady 4X reference signal from the ignition coil (IC) module, which is the module that houses the coil packs on many Chrysler engines. The PCM expects a series of pulses from the 4X reference circuit as the engine turns, and this code sets when those pulses become intermittent or disappear entirely while the engine is running or cranking.

DTC codes / Chrysler codes / P1320

P1320 · ChryslerIC Module 4X Ref Circuit Intermittent No Pulses

P1320 on a Chrysler vehicle means the powertrain control module (PCM) is not receiving a steady 4X reference signal from the ignition coil (IC) module, which is the module that houses the coil packs on many Chrysler engines. The PCM expects a series of pulses from the 4X reference circuit as the engine turns, and this code sets when those pulses become intermittent or disappear entirely while the engine is running or cranking.

SystemPowertrain

Code typeChrysler specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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