P25C2

Alternative Fuel Disable Signal Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Incorrect engine operation
Power reduction
Increased fuel consumption

Causes

Open or short circuit in the circuit
Faulty alternative fuel sensor
Problems with the control module
Wiring harness damage
Contact corrosion

How to Fix

Check the alternative fuel shutdown signal circuit for opens and short circuits
Check alternative fuel sensor
Diagnose the control module
Check and clean contacts
Replace damaged components

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