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.
A Module Cannot Communicate With The PSCM
2015 Lincoln MKS Base, AWDSECTION A Module Cannot Communicate With The PSCM
WARNING: This page is about a different car, the 2016 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
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NOTE: Service Information diagnostics for another module not communicating with the PSCM must be carried out prior to entering this test. REFER to Service Information for an index of all DTC charts and follow the diagnostics for the DTCs present.
Possible Source Action - Fuse(s)
- Wiring, terminals or connectors
- HS-CAN concern
- PSCM
Go to PINPOINT TEST A The PSCM Cannot Communicate With The Diagnostic Scan Tool
Possible Source Action - Fuse(s)
- Wiring, terminals or connectors
- HS-CAN concern
- PSCM
Go to PINPOINT TEST A
RENDER: 1.0x
NO RELATED
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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.