AutoCodes – Honda – P1659 2010 Honda Accord

P1659 2010 Honda Accord Code - Electronic Throttle Control System Control Relay OFF 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: P1659 2010 Honda Accord indicates Electronic Throttle Control System Control Relay OFF 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 18,301

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 P1659 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 P1659 2010 Honda Accord - Electronic Throttle Control System Control Relay OFF Malfunction - AutoCodes.com — P1659 2010 Honda Accord Code - Electronic Throttle Control System Control Relay OFF Malfunction

What does this mean?

What are the Possible Causes of the DTC P1659 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 P1659 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 P1659 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 P1659 2010 Honda Accord code?

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Need Help with the 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 P1659 2010 Honda Accord Code

1. What are the common symptoms of OBDII code P1659 in a 2010 Honda Accord?

When the Electronic Throttle Control System Control Relay OFF Malfunction occurs, common symptoms may include a lack of throttle response, engine stalling, and the vehicle going into limp mode.

2. What usually causes the P1659 code in a 2010 Honda Accord?

The P1659 code in a 2010 Honda Accord is usually caused by a malfunction in the electronic throttle control system relay or a related component.

3. How serious is the Electronic Throttle Control System Control Relay OFF Malfunction in a 2010 Honda Accord?

The P1659 code should be addressed promptly as it can lead to unsafe driving conditions, reduced engine performance, and potential engine damage if left unresolved.

4. Can I still drive my 2010 Honda Accord with the P1659 code present?

It is not recommended to drive your vehicle with the P1659 code active, as it can affect the throttle control and engine operation, potentially leading to safety hazards.

5. How can I diagnose the Electronic Throttle Control System Control Relay OFF Malfunction in my 2010 Honda Accord?

Diagnosing the P1659 code typically involves using an OBDII scanner to retrieve the code, inspecting the throttle control system components, and testing the electronic throttle control relay.

6. What are some DIY repair tips for fixing the P1659 code on a 2010 Honda Accord?

DIY repair tips for the P1659 code may include checking and cleaning throttle control connections, inspecting wiring for damage, and replacing the electronic throttle control relay if necessary.

7. Is it recommended to reset the OBDII code P1659 in a 2010 Honda Accord after making repairs?

After addressing the underlying issue causing the P1659 code in your 2010 Honda Accord, it is recommended to reset the code using an OBDII scanner to see if the problem has been resolved.

8. Can a faulty throttle position sensor trigger the OBDII code P1659 in a 2010 Honda Accord?

Yes, a faulty throttle position sensor can potentially trigger the P1659 code in a 2010 Honda Accord, as it is a critical component of the electronic throttle control system.

9. How much does it typically cost to repair the Electronic Throttle Control System Control Relay OFF Malfunction in a 2010 Honda Accord?

The cost of repairing the P1659 code in a 2010 Honda Accord can vary depending on the underlying issue, but it may range from a few hundred to a thousand dollars at a dealership or repair shop.

10. Can a failed electronic throttle body cause the OBDII code P1659 in a 2010 Honda Accord?

Yes, a failed electronic throttle body can potentially trigger the P1659 code in a 2010 Honda Accord, as it is a crucial component of the electronic throttle control system that can lead to malfunctions if not functioning properly.