AutoCodes – Mercury – P151A Mercury

P151A Mercury Code - Intake Manifold Runner Controller Performance

Quick Answer

The Intake Manifold Runner Control (IMRC) system is monitored for failures. Common causes include Intake Manifold Runner Control (IMRC) control circuit open, Mechanical concern, bind, seize, damage, or obstruction of IMRC hardware. 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: P151A Mercury indicates Intake Manifold Runner Controller Performance.
Common causes: Common causes include Intake Manifold Runner Control (IMRC) control circuit open, Mechanical concern, bind, seize, damage, or obstruction of IMRC hardware.
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 1,048

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 Jul 04, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P151A Mercury Description

The Intake Manifold Runner Control (IMRC) system is monitored for failures. The test fails when the system detects a loss of bi-directional communication or signal(s) between the Powertrain Control Module (PCM) and the IMRC solenoid.

OBDII Code P151A Mercury - Intake Manifold Runner Controller Performance - AutoCodes.com — P151A Mercury Code - Intake Manifold Runner Controller Performance

What does this mean?

What are the Possible Causes of the DTC P151A Mercury?

Intake Manifold Runner Control (IMRC) control circuit open
Mechanical concern
bind, seize, damage, or obstruction of IMRC hardware
IMRC control circuit short to voltage
IMRC VPWR circuit open
IMRC GND circuit open
Damaged IMRC actuator

How to Fix the DTC P151A Mercury?

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 does this mean?

Code Tech Notes

There is a Factory Service Bulletin for the 2006 Mercury Mountaineer:
2006 Mercury Mountaineer Factory Service Bulletin OBDII Code P151A

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P151A Mercury 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.