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.

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HOMESERVICE MANUALSCHEVROLET2016IMPALA LS, 3.6L ENG VIN NREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK20 ENGINE CONTROL MODULE: PROGRAMMING AND SETUPUNSUCCESSFUL PROGRAMMING RECOVERY

2016 Chevrolet Impala LS, 3.6L Eng VIN N

Unsuccessful Programming Recovery

2016 Chevrolet Impala LS, 3.6L Eng VIN NSECTION Unsuccessful Programming Recovery

If programming a control module is not successful, perform the following procedure:

Verify the control module, data link connector and programming tool connections are secure and the SPS software is up to date.
Ignition» On / Vehicle» In Service Mode
Perform one of the following SPS Programming functions:
NOTE: If both controller options below are listed, select K20/K71 Engine and Transmission Control Modules.
- K20/K71 Engine and Transmission Control Modules and follow the on-screen instructions.
- K20 Engine Control Module and follow on-screen instructions.
Verify the control module programming is successful.
- If the programming is not successful
1. Ignition/Vehicle» Off - For greater than 1 min
2. Ignition» On / Vehicle» In Service Mode
3. Perform one of the following SPS Programming functions:
  NOTE: If both controller options below are listed, select K20/K71 Engine and Transmission Control Modules.
  - K20/K71 Engine and Transmission Control Modules and follow the on-screen instructions.
  - K20 Engine Control Module and follow on-screen instructions.
  - If the programming is not successful. Replace the appropriate component: K20 Engine Control Module or K71 Transmission Control Module
  - If the programming is successful
4. All OK.
- If the programming is successful
All OK.

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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.