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.
Circuit/System Verification
- Verify there are no immobilizer DTCs set in the K9 Body Control Module.
- If any immobilizer DTCs are set in the K9 Body Control Module
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If no immobilizer DTCs are set in the K9 Body Control Module
- If any immobilizer DTCs are set in the K9 Body Control Module
- Perform the K20 Engine Control Module immobilizer learn using the engine control module IMMO Learn in SPS. Refer to Immobilizer System Component Programming .
- Verify the engine starts after the K20 Engine Control Module completes the learn procedure.
- If the engine does not start
Replace the K20 Engine Control Module.
- If the engine starts
- If the engine does not start
- All OK
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.