AutoCodes – Ford – P1667 Ford

P1667 Ford Code - IDM Circuit Malfunction

Quick Answer

P1667 Ford indicates IDM Circuit Malfunction. Common causes include Open fuse, Faulty Injector Driver Module (IDM) Relay, Injector Driver Module (IDM) Relay harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1667 Ford indicates IDM Circuit Malfunction.
Common causes: Common causes include Open fuse, Faulty Injector Driver Module (IDM) Relay, Injector Driver Module (IDM) Relay harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 13,886

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1667 Ford Description

OBDII Code P1667 Ford - IDM Circuit Malfunction - AutoCodes.com — P1667 Ford Code - IDM Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P1667 Ford?

Open fuse
Faulty Injector Driver Module (IDM) Relay
Injector Driver Module (IDM) Relay harness is open or shorted
Injector Driver Module (IDM) Relay circuit poor electrical connection
Faulty Injector Driver Module (IDM)

How to Fix the DTC P1667 Ford?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1667 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.