P2689 Possible Causes
- Faulty fuel feed heater
- Fuel feed heater circuit open or shorted
- Poor electrical connection in fuel feed heating circuit
How to Fix Code P2689
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Illuminated engine light (or service engine soon warning light)
P2689 Meaning
The Powertrain Control Module (PCM) monitors the fuel feed heater control circuit. The PCM sets the OBDII code when the fuel feed heater control circuit is outside factory specifications.