After Warming Up, Idle Speed Drops When Steering Wheel is Turned (MIL Works OK, No DTCs Set) (Without EPS)

After warming up, idle speed drops when steering wheel is turned (MIL works OK, no DTCs set) (Without EPS)

After warming up, idle speed drops when steering wheel is turned
(MIL works OK, no DTCs set)
(Without EPS)

Do the ECM/PCM idle learn procedure ECM/PCM Idle Learn Procedure.

Troubleshoot the PSP switch signal circuit PSP Switch Signal Circuit Troubleshooting (R18A1 And R18A4 Engine).

Do the carbon accumulation check.

Also check for

Power steering system problems