AutoCodes – Mercury – P2072 Mercury

P2072 Mercury Code - Throttle Actuator Control System - Ice Blockage

Quick Answer

The P2072 code only identifies that the strategy has carried out several open and close cycles to remove potential ice build up. Common causes include Ice or oil in the intake air system could be the result of a positive crankcase ventilation (PCV) system concern. 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: P2072 Mercury indicates Throttle Actuator Control System - Ice Blockage.
Common causes: Common causes include Ice or oil in the intake air system could be the result of a positive crankcase ventilation (PCV) system concern.
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 1,518

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 24, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P2072 Mercury Description

The P2072 code only identifies that the strategy has carried out several open and close cycles to remove potential ice build up. This code does not imply any system concerns, only that the mode has occurred, and that mode may be causing a long start time.

OBDII Code P2072 Mercury - Throttle Actuator Control System - Ice Blockage - AutoCodes.com — P2072 Mercury Code - Throttle Actuator Control System - Ice Blockage

What does this mean?

What are the Possible Causes of the DTC P2072 Mercury?

Ice or oil in the intake air system could be the result of a positive crankcase ventilation (PCV) system concern

How to Fix the DTC P2072 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

Do not install a new electronic throttle body (ETB) for this DTC. Check the PCV system for evidence of water or ice. Disconnect the intake air fresh air plenum from the throttle body. Check for water or oily residue at the PCV fresh air port. Disconnect the tube at the valve cover and check the tube for ice obstruction/ice. Start the engine and, to check the PCV system, place a piece of cardboard on the crankcase vent in the rocker cover. If the cardboard is held on the crankcase vent and fumes are not exiting, reconnect the tube to the valve cover and the intake air port. If the test passes, the PCV system is OK. If the cardboard is not held in place, turn off the engine and check the PCV valve side of the system for ice or obstruction and repair as necessary. If no obstruction is found there, isolate and repair any obstruction in the intake manifold connection. If no obstruction is found there, make sure the PCV coolant heater is functional and repair as necessary. If no concern is present, make sure the PCV valve is allowing the correct vacuum flow and repair as necessary.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2072 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.