AutoCodes – Acura – P1D0C Acura

P1D0C Acura Code - Generator Motor Control Module Lost Communication With VCU

Quick Answer

The Voltage Control Unit (VCU) uses an internal timer to measure the intervals between serial communication data updates. Common causes include Faulty Generator Motor Control Module, Generator Motor Control Module harness is open or shorted, Generator Motor Control 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: P1D0C Acura indicates Generator Motor Control Module Lost Communication With VCU.
Common causes: Common causes include Faulty Generator Motor Control Module, Generator Motor Control Module harness is open or shorted, Generator Motor Control 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 1,153

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 Apr 15, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1D0C Acura Description

The Voltage Control Unit (VCU) uses an internal timer to measure the intervals between serial communication data updates. When an update is not received for a specified time, a serial communication reception malfunction is detected and a DTC is stored.

OBDII Code P1D0C Acura - Generator Motor Control Module Lost Communication With VCU - AutoCodes.com — P1D0C Acura Code - Generator Motor Control Module Lost Communication With VCU

What does this mean?

What are the Possible Causes of the DTC P1D0C Acura?

Faulty Generator Motor Control Module
Generator Motor Control Module harness is open or shorted
Generator Motor Control Module circuit poor electrical connection

How to Fix the DTC P1D0C Acura?

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 P1D0C Acura 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.

Need more information about the P1D0C Acura code?

Need more information on how to fix the P1D0C Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1D0C Acura code diagnosed by a professional: Find a repair shop in your area

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 P1D0C Acura Code

1. What does the OBDII code P1D0C mean on an Acura?

P1D0C indicates that the Generator Motor Control Module (MGCM) has lost communication with the Vehicle Control Unit (VCU).

2. What are the common symptoms of the P1D0C code on an Acura?

Symptoms may include a check engine light, reduced hybrid system performance, poor fuel economy, or the vehicle operating in a limited functionality mode.

3. What causes the P1D0C code to appear?

The code is typically caused by issues such as a faulty Generator Motor Control Module, a defective VCU, damaged wiring or connectors, or software glitches in the communication system.

4. Can I still drive my Acura with the P1D0C code?

While the vehicle may still operate, driving with this code can reduce performance and fuel efficiency, and itâ€™s best to address the issue promptly to avoid further damage.

5. How do you diagnose the P1D0C code on an Acura?

Diagnosing involves using a scan tool to confirm the code, inspecting the wiring and connectors between the MGCM and VCU, and testing the communication signals with specialized equipment.

6. How can the P1D0C code be fixed?

Repairs may include replacing damaged wiring, cleaning or reconnecting loose connectors, updating software, or replacing a faulty MGCM or VCU if necessary.

7. Is the P1D0C code specific to Acura vehicles?

While it is most commonly associated with Acura hybrid models, similar codes may appear on other vehicles with comparable hybrid systems.

8. How much does it cost to repair the P1D0C code on an Acura?

Repair costs vary depending on the cause but can range from $100 for simple wiring repairs to over $1,000 if a module replacement is required.

9. Can a software update fix the P1D0C code on an Acura?

Yes, if the issue is related to a software glitch, updating the control modules with the latest Acura software may resolve the problem.

10. What tools are needed to troubleshoot the P1D0C code?

Troubleshooting requires an OBDII scan tool, a multimeter to test electrical connections, and possibly a factory diagnostic tool for advanced module testing.