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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2021EXPEDITION PLATINUM, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 301 (FOUR-WHEEL DRIVE SYSTEMS)
2021 Ford Expedition Platinum, RWD
Section 301 (Four-Wheel Drive Systems)
2021 Ford Expedition Platinum, RWDSECTION Section 301 (Four-Wheel Drive Systems)
WARNING: This page is about a different car, the 2019 Lincoln Nautilus. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Four-Wheel Drive Systems - Overview
- Four-Wheel Drive Systems - System Operation and Component Description
- Diagnosis And Testing
- Four-Wheel Drive Systems
- Notes
- Inspection and Verification
- AWD module DTC Chart
- Pinpoint Tests
- Pinpoint Test A : DTC (Diagnostic Trouble Code) : C0090:16, C0090:18, C0090:19, C0090:71 And C00A2:19
- Pinpoint Test B : DTCS C0091:17, C0091:32, C0091:33, C0091:38, C0091:92 And C00A2:1C
- Pinpoint Test C : DTCS C0092:17, C0092:32, C0092:33 And C0092:38
- Pinpoint Test D : C0093:16, C0093:17 And C0093:92
- Pinpoint Test E : DTCS P0603:00, P060A:00, P060C:00 And P1397:00
- Pinpoint Test F : U0126:00, U0212:00
- Pinpoint Test G : U0140:00
- Pinpoint Test H : U0146:00
- Pinpoint Test I : U0164:00
- Pinpoint Test J : U0155:00
- Pinpoint Test K : U0121:00
- Pinpoint Test L : The AWD (All-Wheel Drive) System Does Not Activate From The 4WD/AWD Power Transfer Unit Position Sensor
- Pinpoint Test M : P261A:00, P261B:00, P261C::00 And P261D:00
- Pinpoint Test N : C0099:14, C0099:16, C0099:17, C009A:14, C009A:17, C009B:14, C009B:16, C009B:17 And C009C
- PINPOINT TEST O : DTC's C05F0:00, C05F1:00, C05F3:00 and C05F4:00
- PINPOINT TEST P : DTC's C0095:07, C0095:18, C0095:19, C00945:44, C90095:71, C0095:92 and C0095:99
- Pinpoint Test Q : DTC C00A3:1C
- Four-Wheel Drive Systems
- Removal And Installation
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.