AutoCodes – Honda – P1D79 Honda

P1D79 Honda Code - Generator Motor I1 Current Sensor Circuit High Voltage

Quick Answer

The motor control module protects the power element with the I1 current sensor (primary side current) within the voltage control unit (VCU). Common causes include Faulty Generator Motor I1 Current Sensor, Generator Motor I1 Current Sensor harness is open or shorted, Generator Motor I1 Current Sensor 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: P1D79 Honda indicates Generator Motor I1 Current Sensor Circuit High Voltage.
Common causes: Common causes include Faulty Generator Motor I1 Current Sensor, Generator Motor I1 Current Sensor harness is open or shorted, Generator Motor I1 Current Sensor 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 847

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 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1D79 Honda Description

The motor control module protects the power element with the I1 current sensor (primary side current) within the voltage control unit (VCU). The motor control module detects a malfunction and stores a DTC when the output voltage of the I1 current sensor is equal to or more than the prescribed value for the prescribed time or more.

OBDII Code P1D79 Honda - Generator Motor I1 Current Sensor Circuit High Voltage - AutoCodes.com — P1D79 Honda Code - Generator Motor I1 Current Sensor Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1D79 Honda?

Faulty Generator Motor I1 Current Sensor
Generator Motor I1 Current Sensor harness is open or shorted
Generator Motor I1 Current Sensor circuit poor electrical connection
Faulty Motor Control Module (Generator)

How to Fix the DTC P1D79 Honda?

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 P1D79 Honda 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 P1D79 Honda code?

Need more information on how to fix the P1D79 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1D79 Honda 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 P1D79 Honda Code

1. What are common symptoms of OBDII code P1D79 in a Honda related to the Generator Motor I1 Current Sensor Circuit High Voltage?

- Common symptoms include the check engine light being illuminated, decreased fuel efficiency, and potential issues with the hybrid system.

2. What are possible causes of OBDII code P1D79 in a Honda?

- Possible causes may include a faulty generator motor I1 current sensor, damaged wiring or connectors in the sensor circuit, or issues with the hybrid battery.

3. How can I diagnose the Generator Motor I1 Current Sensor Circuit High Voltage issue in my Honda?

- Diagnosing this issue typically involves using a scan tool to read the OBDII code, checking the sensor and its connections for any visible damage, and performing electrical tests to pinpoint the problem.

4. Can I drive my Honda with the P1D79 code present?

- It is not recommended to drive your vehicle with this code present, as it can lead to further damage to the hybrid system and potentially impact the vehicle's performance.

5. What are the repair options for OBDII code P1D79 in a Honda?

- Repair options may include replacing the faulty generator motor I1 current sensor, repairing damaged wiring or connectors, or addressing any issues with the hybrid battery as needed.

6. Is it possible to reset the OBDII code P1D79 in a Honda without fixing the underlying issue?

- While it is possible to clear the code temporarily, it will likely reappear until the root cause of the Generator Motor I1 Current Sensor Circuit High Voltage problem is addressed.

7. How much does it typically cost to repair OBDII code P1D79 in a Honda?

- The cost of repair can vary depending on the specific issue causing the code, but it may involve parts and labor expenses ranging from a few hundred to over a thousand dollars.

8. Can a DIY enthusiast fix the Generator Motor I1 Current Sensor Circuit High Voltage issue in a Honda?

- Depending on your skill level and access to the necessary tools, a DIY enthusiast may be able to address this issue by following repair guides and instructions specific to their Honda model.

9. Will ignoring OBDII code P1D79 in a Honda cause further damage?

- Ignoring this code can potentially lead to more severe issues with the hybrid system, decreased fuel efficiency, and possibly even engine performance problems over time.

10. How often does the Generator Motor I1 Current Sensor Circuit High Voltage issue occur in Honda vehicles?

- While not extremely common, this issue can occur in Honda vehicles equipped with hybrid systems, particularly in older models or those with higher mileage.