DTC P1521: POWER STEERING SWITCH 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 will set when power steering switch remains on. Check for following possible problems

1. Open between power steering switch and Engine Control Module (ECM).
2. Short between power steering switch and ECM.
3. Faulty Power steering switch.