Engine-CodesHonda – P1587 Honda

P1587 Honda Code - Motor Power Inverter Module Current Signal Circuit Low Input

Quick Answer

The P1587 Honda diagnostic trouble code indicates a problem with the Motor Power Inverter Module Current Signal Circuit having a low input. Common causes include Faulty motor power inverter module, Damaged wiring or connectors in the current signal circuit, Issues with the battery pack. 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
P1587 Honda indicates Motor Power Inverter Module Current Signal Circuit Low Input.
Common causes
Common causes include Faulty motor power inverter module, Damaged wiring or connectors in the current signal circuit, Issues with the battery pack.
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 10, 2024
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Code P1587 Honda Description

The P1587 Honda diagnostic trouble code indicates a problem with the Motor Power Inverter Module Current Signal Circuit having a low input. This module is a crucial component in hybrid and electric vehicles, as it is responsible for converting high-voltage DC power from the battery into AC power for the electric motor. When the current signal circuit has a low input, it means that the module is not receiving the expected amount of current, which can lead to a variety of performance issues.

OBDII Code P1587 Honda - Motor Power Inverter Module Current Signal Circuit Low Input
P1587 Honda Code - Motor Power Inverter Module Current Signal Circuit Low Input

Common Causes of P1587 Honda

  1. Faulty motor power inverter module
  2. Damaged wiring or connectors in the current signal circuit
  3. Issues with the battery pack
  4. Malfunctioning electric motor

Symptoms of P1587 Honda

  1. Reduced power output from the electric motor
  2. Decreased fuel efficiency
  3. Jerky or uneven power delivery
  4. Limp mode activation
  5. Check Engine Light illuminated on the dashboard

How to Fix P1587 Honda

  1. Begin by conducting a comprehensive diagnosis using a diagnostic scan tool to pinpoint the exact cause of the issue.
  2. Inspect the motor power inverter module, wiring, and connectors for any visible damage or signs of wear.
  3. Test the battery pack and electric motor to ensure they are functioning correctly.
  4. Replace any faulty components, such as the motor power inverter module or damaged wiring, to resolve the low input signal issue.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure that the problem has been successfully resolved.

Cost to Fix P1587 Honda

The cost of repairing a P1587 Honda code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, you can expect to pay between $200 and $800 for parts and labor. However, it's important to note that diagnosis time and labor rates can vary between auto repair shops, so it's advisable to obtain quotes from multiple sources to get a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive prices.

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Information for Specific Honda Models

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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