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.
2021 Lincoln Nautilus Base, 4WDFACTORY OEM SERVICE PROCEDURE
Automatic Transmission External Controls
- Description And Operation
- Diagnosis And Testing
- External Controls
- Notes
- Inspection and Verification
- Diagnostic Trouble Code (DTC) Chart
- Global Customer Symptom Code (GCSC) Chart
- Pinpoint Tests
- Pinpoint Test A: DTC P0562
- Pinpoint Test B: DTC P0563
- Pinpoint Test C: DTC P166B
- Pinpoint Test D: DTC P0814
- Pinpoint Test E: DTCS P07EC, P07ED
- Pinpoint Test F: Internal Module Diagnostic Trouble Codes (DTCS)
- Pinpoint Test G: DTC U0100:87
- Pinpoint Test H: DTC U0301
- Pinpoint Test I: DTCS U1011, U101F
- Pinpoint Test J: Lost Communication With Another Module
- Pinpoint Test K: Invalid Data Received From Another Module
- Pinpoint Test L: Paddle Shift Does Not Operate Correctly
- Pinpoint Test M: Transmission Stuck In Park Position
- Pinpoint Test N: Park Does Not Engage
- Pinpoint Test O: Transmission Returns To Park Automatically
- External Controls
- General Procedures
- Removal And Installation
Factory Service Tools
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.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.