P1395
FordGlow Plug Monitor Fault (Bank #1)
The glow plug system warms the combustion chambers to help a diesel engine start and run smoothly when cold. This code means the monitor has detected a fault associated with Bank #1; it does not prove that a glow plug itself has failed. Cold starting or running may be affected, though the vehicle may show no obvious symptoms.
⚠️ Before You Begin (Safety First)
This fault does not automatically mean the vehicle is unsafe to drive. If the engine is difficult to start, stalls, or runs severely rough, avoid relying on it until diagnosed. Stop driving if another serious warning, loss of power, or unsafe running condition occurs.
Common Symptoms
- The check-engine light may be on because the monitor has recorded a fault.
- Cold starting may take longer if the glow plug system is not heating as expected.
- The engine may run roughly just after a cold start if cold combustion is affected.
- White exhaust smoke may occur during a cold start if fuel does not burn completely.
- There may be no noticeable symptoms, especially once the engine is warm.
Common Causes
- A Bank #1 glow plug may have an electrical or heating fault.
- Wiring or a connector in the Bank #1 glow plug or monitor circuit may be damaged, loose, or corroded.
- A fuse, power supply, ground, or glow plug control component may not be operating correctly.
- The monitor circuit may detect a fault even when the glow plugs themselves are functional.
Diagnostic Steps
- Confirm the vehicle's year, engine, and exact code, and note any other stored codes; glow plug system details vary by application.
- With the engine off and cool, visually check accessible Bank #1 glow plug wiring and connectors for looseness, corrosion, or damage.
- Check the owner's manual for relevant fuse information and inspect only accessible fuses; replace a blown fuse only with the specified type and rating.
- If the code returns or wiring damage is not obvious, arrange testing of the glow plugs and monitor circuit rather than replacing parts by guesswork.
When to Call a Professional
Confirm the exact engine and review all stored codes and available freeze-frame data. Test the Bank #1 glow plug system and its monitor circuit, including wiring, connectors, power and ground, using model-, year- and engine-specific service information. Do not replace glow plugs solely because this code is present.
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Commonly Asked Questions
Does P1395 prove that a Bank #1 glow plug has failed?
No. It identifies a Bank #1 glow plug monitor fault. A glow plug, wiring, connector, power or ground supply, control component, or monitor circuit may be involved.
Can I drive with this code?
Often the vehicle can be driven if it starts and runs normally, but cold starting may be affected. Have it diagnosed promptly if starting or running becomes unreliable.
Why might there be no symptoms?
The fault may be most noticeable during cold starting, and a warm engine may run normally. Some monitor faults also do not cause obvious changes in everyday driving.
How is the cause distinguished from a failed glow plug?
A technician checks the glow plugs and the Bank #1 monitor circuit, including its wiring and electrical supply, using procedures appropriate to the exact engine.
Browse Available Code Guides
Previous and next available guides in database record order, across makes. Adjacent entries may share a code number and do not necessarily describe related faults.