Engine-CodesGeneric – P0A87

P0A87 Code - 14 Volt Power Module Current Sensor Circuit Range/Performance

Quick Answer

The P0A87 code refers to a 14 Volt Power Module Current Sensor Circuit Range/Performance issue. Common causes include Faulty current sensor circuit, Loose or damaged wiring connections, Corrosion or damage to the power module. 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
P0A87 indicates 14 Volt Power Module Current Sensor Circuit Range/Performance.
Common causes
Common causes include Faulty current sensor circuit, Loose or damaged wiring connections, Corrosion or damage to the power module.
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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0A87 Description

The P0A87 code refers to a 14 Volt Power Module Current Sensor Circuit Range/Performance issue. This code indicates a problem with the current sensor circuit in the 14-volt power module of the vehicle. The 14-volt power module is responsible for regulating the voltage and current flow in the vehicle's electrical system, ensuring that the various components receive the correct amount of power. The current sensor circuit is designed to monitor the current flowing through the power module and provide feedback to the vehicle's computer system.

OBDII Code P0A87 - 14 Volt Power Module Current Sensor Circuit Range/Performance
P0A87 Code - 14 Volt Power Module Current Sensor Circuit Range/Performance

Common Causes of P0A87

  1. Faulty current sensor circuit
  2. Loose or damaged wiring connections
  3. Corrosion or damage to the power module
  4. Issues with the vehicle's battery
  5. Software or programming issues with the vehicle's computer system

Symptoms of P0A87

  1. Check engine light is illuminated on the dashboard
  2. Erratic voltage readings on the vehicle's voltmeter
  3. Electrical components not functioning properly or intermittently
  4. Vehicle stalling or difficulty starting
  5. Reduced fuel efficiency

How to Fix P0A87

  1. Diagnose the issue by using a diagnostic scanner to retrieve the specific code and pinpoint the exact cause of the problem.
  2. Inspect the current sensor circuit, wiring connections, and power module for any damage or loose connections.
  3. Replace the current sensor circuit if it is found to be faulty or damaged.
  4. Repair or replace any damaged wiring connections.
  5. Clear the code from the vehicle's computer system and test the vehicle to ensure that the issue has been resolved.

Cost to Fix P0A87

The repair costs for a P0A87 code can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the parts and labor for this repair could range from $200 to $500. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's best to check with local shops for a more accurate estimate.

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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.

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