P0215: Engine Shutoff Solenoid

What it means

Fault detected on the engine shutoff solenoid (used on diesels and some petrol engines to stop fuel flow at engine off).

At a glance

• Usually lights the check-engine light

How it works

The engine shutoff solenoid controls fuel flow so the engine can stop when commanded. The PCM monitors the solenoid's control circuit and response; P0215 sets when it detects a fault that may prevent the solenoid from operating as expected.

Common causes

Most likely first.

1. Engine shutoff solenoid failure
2. Damaged wiring or loose connector
3. Fault in the solenoid control circuit
4. Fuel supply or mechanical issue preventing shutoff

Symptoms

• Check-engine light
• Engine may be difficult to start or may not start
• Engine may fail to shut off normally

How to diagnose it

1. Use a scan tool to record freeze-frame data and any related codes, noting whether the fault occurred during starting or shutdown.
2. Inspect the shutoff solenoid connector and nearby wiring for loose terminals, corrosion, chafing, or damage.
3. Check the solenoid control circuit for opens, shorts, and poor connections using the manufacturer's procedure.
4. Verify that the solenoid receives the commanded control signal and operates as specified by the manufacturer.
5. If electrical checks pass, investigate fuel delivery or mechanical issues that could keep the engine running after fuel shutoff.

Common fixes

• Secure a loose shutoff-solenoid connector or repair damaged wiring.
• Clean or repair corroded terminals in the solenoid circuit.
• Replace a shutoff solenoid that fails its electrical or operational test.
• Repair a confirmed fuel-delivery or mechanical fault affecting engine shutdown.

Can I keep driving?

If the engine will not shut off normally, stop in a safe place and follow the vehicle's emergency shutdown guidance; do not continue driving with unreliable engine control. A starting failure can also leave you stranded.