LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2003 >> Optima SE, 2.7 8 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 2.7L >> Diagnostic Tests >> DTC P1602: Serial Communication Problem With Transaxle Control Module (Time-Out) >> Diagnostic Aids
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Aids

Malfunction code enable criteria not available from manufacturer.

Check for following possible problems: