What does code P1358 mean?

Q: What does code P1358 mean?

Ignition Diagnostic Monitor Signal Out of Self-Test Range. P1358 on Ford vehicles means the powertrain control module (PCM) has detected that the ignition diagnostic monitor (IDM) signal is outside the self-test range during the key-on engine-off self-test. The IDM circuit is used by the PCM to confirm that the ignition control module (ICM) or coil driver is functioning correctly, and this code indicates the feedback voltage is not within the expected window.

DTC codes / Ford codes / P1358

P1358 · FordIgnition Diagnostic Monitor Signal Out of Self-Test Range

P1358 on Ford vehicles means the powertrain control module (PCM) has detected that the ignition diagnostic monitor (IDM) signal is outside the self-test range during the key-on engine-off self-test. The IDM circuit is used by the PCM to confirm that the ignition control module (ICM) or coil driver is functioning correctly, and this code indicates the feedback voltage is not within the expected window.

SystemPowertrain

Code typeFord specific

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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