Engine-CodesInfiniti – P1290 Infiniti

P1290 Infiniti Code - Throttle Control Motor Relay Circuit Open Bank 2

Quick Answer

The P1290 Infiniti code refers to an issue with the Throttle Control Motor Relay Circuit Open Bank 2. Common causes include Faulty throttle control motor relay, Wiring or electrical connection issues, Corrosion or damage to relay circuit. 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
P1290 Infiniti indicates Throttle Control Motor Relay Circuit Open Bank 2.
Common causes
Common causes include Faulty throttle control motor relay, Wiring or electrical connection issues, Corrosion or damage to relay circuit.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1290 Infiniti Description

The P1290 Infiniti code refers to an issue with the Throttle Control Motor Relay Circuit Open Bank 2. This means that there is an open circuit in the relay that controls the throttle motor in Bank 2 of the vehicle. The throttle control motor is responsible for controlling the opening and closing of the throttle valve, which regulates the amount of air entering the engine. This code can have significant implications for the vehicle's performance, as it can lead to problems with acceleration, fuel efficiency, and overall engine operation.

OBDII Code P1290 Infiniti - Throttle Control Motor Relay Circuit Open Bank 2
P1290 Infiniti Code - Throttle Control Motor Relay Circuit Open Bank 2

Common Causes of P1290 Infiniti

  1. Faulty throttle control motor relay
  2. Wiring or electrical connection issues
  3. Corrosion or damage to relay circuit
  4. Faulty throttle control motor
  5. Software or programming issues

Symptoms of P1290 Infiniti

  1. Loss of power or acceleration
  2. Engine stalling or hesitation
  3. Check engine light illuminated
  4. Reduced fuel efficiency
  5. Rough idling or erratic engine behavior

How to Fix P1290 Infiniti

  1. Diagnose the issue using a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the throttle control motor relay circuit.
  2. Check the wiring and electrical connections for any signs of damage, corrosion, or loose connections.
  3. Test the throttle control motor relay for proper functionality and replace if necessary.
  4. Inspect the throttle control motor for any faults or malfunctions and replace if needed.
  5. Clear the trouble codes, reset the engine control module, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1290 Infiniti

The typical repair costs for addressing the P1290 Infiniti code can range from $200 to $500, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates can vary depending on the location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships and lower at independent shops. It is recommended to obtain quotes from local shops to get a more accurate estimate for the repair.

When is the Code Detected?

Engine Control Module (ECM) detects a voltage of power source for throttle control motor is excessively low.

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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.

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