P2687

Fuel Supply Heater Control Circuit/Open

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Diagnostic scanner shows code P2687
Problems starting the engine in cold weather
Unstable engine operation at low temperatures
Check Engine Light Illuminates

Causes

Broken fuel heater circuit wiring
Heater relay malfunction
Failure of the heating element
Problems in the engine control unit
Corrosion of contacts or connectors

How to Fix

Check the continuity of the heater circuit using a multimeter
Check the condition of the heater control relay
Test the heating element for resistance
Inspect connectors and wiring harness for damage
If necessary, replace faulty components

Related codes

P2688 P2686 P2689