ECM/PCM Idle Learn Procedure: Notes
The idle learn procedure must be done so the ECM/PCM can learn the engine idle characteristics
Do the idle learn procedure whenever you do any of these actions
- Replace the ECM/PCM.
- Reset the ECM/PCM
- Update the ECM/PCM
- Replace or clean the throttle body
- When the engine or transmission is disassembled
NOTE:
Clearing the DTCs with the HDS does not require you to do the idle learn procedure