AutoCodes – Mercury – P1461 Mercury

P1461 Mercury Code - Air Conditioning Pressure Sensor Circuit High

Quick Answer

Air Conditioning Pressure (ACP) inputs a voltage to the Powertrain Control Module (PCM). Common causes include Faulty Air Conditioning Pressure (ACP) Sensor, Air Conditioning Pressure Sensor Harness is Open or Shorted, Air Conditioning Pressure Sensor Circuit Poor Electrical Connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P1461 Mercury indicates Air Conditioning Pressure Sensor Circuit High.
Common causes: Common causes include Faulty Air Conditioning Pressure (ACP) Sensor, Air Conditioning Pressure Sensor Harness is Open or Shorted, Air Conditioning Pressure Sensor Circuit Poor Electrical Connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 1,384

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1461 Mercury Description

Air Conditioning Pressure (ACP) inputs a voltage to the Powertrain Control Module (PCM). If the voltage is above a calibrated level the P1461 code will set. Verify VREF voltage between 4.0 and 6.0V.

OBDII Code P1461 Mercury - Air Conditioning Pressure Sensor Circuit High - AutoCodes.com — P1461 Mercury Code - Air Conditioning Pressure Sensor Circuit High

What does this mean?

What are the Possible Causes of the DTC P1461 Mercury?

Faulty Air Conditioning Pressure (ACP) Sensor
Air Conditioning Pressure Sensor Harness is Open or Shorted
Air Conditioning Pressure Sensor Circuit Poor Electrical Connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1461 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1461 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.