CAN Link ECM/ABS Circuit Fault
2016-2016 Ford Explorer 3.5L V6 EcoBoost
The 2016 Ford Explorer is equipped with a 3.5L V6 turbocharged gasoline engine. Below you'll find detailed p1637 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The Controller Area Network (CAN) communication link between the Engine Control Module and the ABS module has a fault. The modules cannot exchange data properly.
Symptoms
- Check Engine Light
- ABS warning light
- Traction control disabled
- Possible limp mode
Common Causes
- Damaged CAN bus wiring
- Faulty ABS module
- Faulty PCM
- Corroded CAN connector
- CAN bus termination issue
Diagnostic Steps
- Check for ABS DTCs as well
- Inspect CAN bus wiring for damage
- Test CAN bus resistance (should be ~60 ohms between CAN-H and CAN-L)
- Check connectors at PCM and ABS module
Repair Notes
Repair CAN bus wiring. Replace faulty module if communication is lost.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1637 on Other Vehicles
Common Questions
What does code P1637 mean on a 2016-2016 Ford Explorer?
P1637 stands for "CAN Link ECM/ABS Circuit Fault". The Controller Area Network (CAN) communication link between the Engine Control Module and the ABS module has a fault. The modules cannot exchange data properly.
What are the symptoms of P1637 on a Ford Explorer?
Common symptoms of P1637 include: Check Engine Light, ABS warning light, Traction control disabled, Possible limp mode.
What causes P1637 on a 2016-2016 Ford Explorer?
Common causes of P1637 include: Damaged CAN bus wiring, Faulty ABS module, Faulty PCM, Corroded CAN connector, CAN bus termination issue.
Last updated: March 2026
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