LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2001 >> Rio Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0601: Engine Control Module Random Check Sum Error & DTC P0605: Engine Control Module ROM Error >> Test Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Test Procedure

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.
  1. There is no inspection or service possible for this diagnostic trouble code. Temporarily install a known-good ECM and check for proper operation. If problem is corrected, replace ECM. Go to next step.
  2. After repair, return vehicle to original condition. Clear codes using Hi-Scan Pro/Kia Data Pro Scan tool or equivalent. Verify repairs by driving vehicle and monitoring for pending codes. If DTC is set during test drive, follow appropriate DTC test procedure.