AutoCodes – Nissan – P2103 2009 Nissan Sentra

P2103 2009 Nissan Sentra Code - Throttle Control Motor Relay Circuit Short

Quick Answer

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor Relay, Throttle Actuator Control Motor Relay harness is open. 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: P2103 2009 Nissan Sentra indicates Throttle Control Motor Relay Circuit Short.
Common causes: Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor Relay, Throttle Actuator Control Motor Relay harness is open.
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 2,271

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 Feb 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2103 2009 Nissan Sentra Description

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. The throttle position sensor provides feedback to the ECM. This feedback allows the ECM to control the throttle actuator and monitor the throttle opening angle in response to driver inputs.

OBDII Code P2103 2009 Nissan Sentra - Throttle Control Motor Relay Circuit Short - AutoCodes.com — P2103 2009 Nissan Sentra Code - Throttle Control Motor Relay Circuit Short

What does this mean?

What are the Possible Causes of the DTC P2103 2009 Nissan Sentra?

Dirty throttle body
Faulty Throttle Actuator Control Motor Relay
Throttle Actuator Control Motor Relay harness is open
Throttle Actuator Control Motor Relay circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2103 2009 Nissan Sentra?

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 P2103 2009 Nissan Sentra 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 P2103 2009 Nissan Sentra code?

Need more information on how to fix the P2103 2009 Nissan Sentra code? Get Access to Factory Service Manuals

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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 P2103 2009 Nissan Sentra Code

What does the OBDII code P2103 mean for a 2009 Nissan Sentra?

P2103 indicates a problem with the throttle control motor relay circuit, specifically a short circuit.

What are common symptoms associated with the P2103 code?

Symptoms may include reduced engine power, the check engine light being illuminated, and possible stalling or hesitation during acceleration.

What could cause the P2103 code to trigger in my Nissan Sentra?

Causes may include a faulty throttle control motor relay, damaged wiring, a short circuit in the throttle control circuit, or issues with the throttle body itself.

How can I diagnose the P2103 code?

Start by visually inspecting the throttle control motor relay and associated wiring for damage. Use a multimeter to check for continuity and proper voltage in the circuit.

What repairs are commonly needed for the P2103 code?

Repairs may involve replacing the throttle control motor relay, repairing damaged wiring, or replacing the throttle body if it is faulty.

Can I drive my 2009 Nissan Sentra with the P2103 code?

It is not recommended to drive the vehicle with this code, as it may lead to reduced engine performance and could pose safety risks.

How can I clear the P2103 code after repairs?

You can clear the code by using an OBDII scanner to reset the check engine light, or by disconnecting the battery for a few minutes.

Will the P2103 code reset if the issue is not fixed?

Yes, the code will likely reset after some driving if the issue is still present, as the vehicle's computer continuously monitors the throttle control system.

Is the P2103 code specific to Nissan vehicles?

No, while this code is applicable to various makes and models, the underlying issue may differ. Always refer to the specific service manual for your vehicle for accurate diagnostics.