DTC P0320: IGNITION FAILURE SYSTEM CIRCUIT MALFUNCTION Kia Sedona I

Note. Before performing any diagnostic test, refer toWARNINGS, CAUTIONS and NOTES under DIAGNOSTIC TESTS .

Note. Testing individual components does not isolate shorts or opens. Perform all voltage tests using a Digital Volt-Ohmmeter Meter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. Use ohmmeter to isolate wiring harness shorts or opens.

Diagnostic Aids

Malfunction code enable criteria not available from manufacturer. Check for following possible problems

1. Open or short between Ignition Failure Sensor (IFS) and Engine Control Module (ECM).
2. Open or short between IFS and ignition coil.
3. Open between IFS and ground.
4. Faulty IFS.