DTC P0601: Engine Control Module Random Check Sum Error & DTC P0605: Engine Control Module ROM Error: Notes

WARNING: This page is about a different car, the 2002 Kia Rio. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before performing any diagnostic test, refer toWARNINGS, CAUTIONS and NOTES underDIAGNOSTIC 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.