Pinpoint Test A : DTCS P2681 And P2683: Notes
WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Refer to ELECTRONIC ENGINE CONTROLS - 5.0L for schematic and connector information.
Normal Operation and Fault Conditions
The PCM provides power to the transmission fluid warmer engine coolant bypass valve when the transmission fluid is below a calibrated temperature. When the valve is energized, the valve opens allowing warm coolant to flow to the transmission fluid warmer.
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| P2681 | Engine Coolant Bypass Valve A Control Circuit/Open | Open in the engine coolant bypass valve circuitry |
| P2683 | Engine Coolant Bypass Valve A Control Circuit High | Engine coolant bypass valve or PCM inoperable |
- Connectors damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals
- Transmission fluid warmer engine coolant bypass valve
- PCM