Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
PCM Idle Learn Procedure (2013-18): Procedure
The idle learn procedure must be done so the PCM can learn the engine idle characteristics.
Do the idle learn procedure whenever you do any of these actions:
- Replace the PCM.
- Reset the PCM.
- Update the 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.
- PCM Idle - Learn
Procedure
1. Make sure all electrical items (the A/C, the audio, the lights, etc.) are off
2. Reset the PCM with the HDS
3. Press the engine start/stop button to select the ON mode, and wait 2 seconds
4. Start the engine. Hold the engine speed at 3, 000 rpm without load (P or N) until the radiator fan comes on, or until the engine coolant temperature reaches 194 °F (90 °C)
5. Let the engine idle for about 5 minutes with the throttle fully closed.NOTE: If the radiator fan comes on, do not include its running time in the 5 minutes.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.