AutoCodes – Honda – P1658 2010 Honda Accord

P1658 2010 Honda Accord Code - Electronic Throttle Control System Control Relay ON Malfunction

Quick Answer

The Powertrain Control Module (PCM) controls the throttle valve opening. Common causes include Faulty Electronic Throttle Control System (ETCS) Relay, Electronic Throttle Control System Relay harness is open or shorted, Electronic Throttle Control System Relay 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: P1658 2010 Honda Accord indicates Electronic Throttle Control System Control Relay ON Malfunction.
Common causes: Common causes include Faulty Electronic Throttle Control System (ETCS) Relay, Electronic Throttle Control System Relay harness is open or shorted, Electronic Throttle Control System Relay 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 6,213

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 20, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1658 2010 Honda Accord Description

The Powertrain Control Module (PCM) controls the throttle valve opening. The system includes the throttle actuator, the throttle valve, Throttle Position (TP) sensors A and B, the Accelerator Pedal Position (APP) sensor, the Electronic Throttle Control System (ETCS) control relay, and the PCM. The APP sensor is operated via the throttle cable to determine the accelerator opening value when the driver presses the accelerator pedal. The accelerator pedal opening value is converted to a signal in the APP sensor and transmitted to the PCM to compute the target position. The PCM determines the throttle valve target position according to the signal received and operates the throttle actuator to move the throttle valve to the target position. The actual throttle valve position is determined by TP sensor A (installed in the throttle body). When the voltage is applied from the ETCS control relay to the IG1ETCS terminal for a set time after the ETCS control relay is turned off, the PCM detects a malfunction in the ETCS control relay power switch, and a DTC is stored.

OBDII Code P1658 2010 Honda Accord - Electronic Throttle Control System Control Relay ON Malfunction - AutoCodes.com — P1658 2010 Honda Accord Code - Electronic Throttle Control System Control Relay ON Malfunction

What does this mean?

What are the Possible Causes of the DTC P1658 2010 Honda Accord?

Faulty Electronic Throttle Control System (ETCS) Relay
Electronic Throttle Control System Relay harness is open or shorted
Electronic Throttle Control System Relay circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P1658 2010 Honda Accord?

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 P1658 2010 Honda Accord 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 P1658 2010 Honda Accord code?

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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 P1658 2010 Honda Accord Code

1. What are common symptoms of OBDII code P1658 on a 2010 Honda Accord?

The common symptoms of code P1658 include the Check Engine light illuminating on the dashboard, engine stalling or rough idling, and reduced engine performance.

2. What does the OBDII code P1658 "Electronic Throttle Control System Control Relay ON Malfunction" mean?

Code P1658 indicates a malfunction in the electronic throttle control system's control relay, which can affect the engine's performance and throttle response.

3. What are possible causes of OBDII code P1658 on a 2010 Honda Accord?

Possible causes of code P1658 include a faulty electronic throttle control relay, damaged wiring or connectors in the relay circuit, or issues with the electronic throttle control system itself.

4. How can I diagnose the cause of OBDII code P1658 on my 2010 Honda Accord?

Diagnosing code P1658 may involve checking the electronic throttle control relay, inspecting the wiring and connectors for damage, and conducting a thorough scan of the electronic throttle control system for any other issues.

5. Can I continue driving my 2010 Honda Accord with OBDII code P1658?

It is not recommended to continue driving your vehicle with code P1658 present, as it can lead to further damage to the electronic throttle control system and potentially affect the safety and performance of the vehicle.

6. How can I repair OBDII code P1658 on my 2010 Honda Accord?

Repairing code P1658 may involve replacing the electronic throttle control relay, repairing any damaged wiring or connectors, and clearing the code from the vehicle's ECU using an OBDII scanner.

7. Is it necessary to reset the ECU after repairing OBDII code P1658?

Yes, it is recommended to reset the ECU after repairing code P1658 to clear the fault code and allow the vehicle's system to relearn the electronic throttle control parameters.

8. Can a DIY enthusiast fix OBDII code P1658 on a 2010 Honda Accord?

Depending on your level of automotive knowledge and experience, you may be able to diagnose and repair code P1658 yourself by following the appropriate repair procedures and using the necessary tools.

9. How much does it cost to repair OBDII code P1658 at a professional mechanic?

The cost of repairing code P1658 at a professional mechanic can vary based on the specific issue causing the code, the labor rates in your area, and any replacement parts that may be needed. It's recommended to obtain a quote from a trusted mechanic.

10. How long does it take to repair OBDII code P1658 on a 2010 Honda Accord?

The time required to repair code P1658 can vary depending on the cause of the malfunction, the availability of replacement parts, and the expertise of the person performing the repair. In general, it may take a few hours to a full day to diagnose and fix the issue.