AutoCodes – Honda – P1587 2003 Honda Civic Hybrid

P1587 2003 Honda Civic Hybrid Code - Motor Power Inverter Module Current Signal Circuit Low Input

Quick Answer

Motor Power Inverter (MPI) Module control the DC/AC conversion (From the Integrated Motor Assisted (IMA) battery's 144 V DC to the IMA motor's 3-phase AC and vice versa). Common causes include Faulty Battery Module, Motor Power Inverter Module harness is open or shorted, Motor Power Inverter Module circuit poor electrical connection. 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 2003 Honda Civic Hybrid indicates Motor Power Inverter Module Current Signal Circuit Low Input.
Common causes: Common causes include Faulty Battery Module, Motor Power Inverter Module harness is open or shorted, Motor Power Inverter Module circuit poor electrical connection.
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 6,144

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 May 20, 2019

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P1587 2003 Honda Civic Hybrid Description

Motor Power Inverter (MPI) Module control the DC/AC conversion (From the Integrated Motor Assisted (IMA) battery's 144 V DC to the IMA motor's 3-phase AC and vice versa).

The MPI module is air cooled. The heat fed through the heat sink is exhausted to the trunk compartment by the Intelligent Power Unit (IPU) module fan. The MPI module has a built-in temperature sensor. The sensor transmits temperature data to the Motor Control Module (MCM) for protection

OBDII Code P1587 2003 Honda Civic Hybrid - Motor Power Inverter Module Current Signal Circuit Low Input - AutoCodes.com — P1587 2003 Honda Civic Hybrid Code - Motor Power Inverter Module Current Signal Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P1587 2003 Honda Civic Hybrid?

Faulty Battery Module
Motor Power Inverter Module harness is open or shorted
Motor Power Inverter Module circuit poor electrical connection

How to Fix the DTC P1587 2003 Honda Civic Hybrid?

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

Start by checking the 12V battery.

Honda Civic Hybrid High Voltage System Operation

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1587 2003 Honda Civic Hybrid 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.

Frequently Asked Questions about P1587 2003 Honda Civic Hybrid Code

1. What are the common symptoms of OBDII code P1587 in a 2003 Honda Civic Hybrid?

- Common symptoms include loss of power, decreased fuel efficiency, and the illumination of the check engine light.

2. What does the OBDII code P1587 in a 2003 Honda Civic Hybrid indicate?

- This code indicates a low input signal in the motor power inverter module current circuit.

3. What are the possible causes of OBDII code P1587 in a 2003 Honda Civic Hybrid?

- Possible causes include a faulty motor power inverter module, damaged wiring or connectors, or a malfunctioning power inverter control module.

4. How can I diagnose OBDII code P1587 in my 2003 Honda Civic Hybrid?

- Diagnostic steps may include checking for loose or damaged wiring, inspecting connectors for corrosion, and testing the motor power inverter module.

5. Can I continue driving my 2003 Honda Civic Hybrid with OBDII code P1587?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety issues.

6. How can I repair OBDII code P1587 in my 2003 Honda Civic Hybrid?

- Repair may involve replacing the motor power inverter module, repairing damaged wiring, or addressing any issues with the power inverter control module.

7. Is it possible to reset the OBDII code P1587 in a 2003 Honda Civic Hybrid without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is important to address the root cause to prevent the code from reoccurring.

8. Will fixing OBDII code P1587 improve the performance of my 2003 Honda Civic Hybrid?

- Yes, resolving this code can restore normal power delivery and fuel efficiency to your vehicle.

9. How much does it typically cost to repair OBDII code P1587 in a 2003 Honda Civic Hybrid?

- Repair costs can vary depending on the exact cause of the issue, but it is recommended to consult a professional for an accurate estimate.

10. Can a DIY enthusiast with automotive experience fix OBDII code P1587 in a 2003 Honda Civic Hybrid?

- While some DIY enthusiasts may be able to address this code themselves, it is important to have the necessary tools and knowledge to ensure a proper repair.