Engine-CodesInfiniti – P0600 Infiniti

P0600 Infiniti Code - A/T Control Serial Communication Link Malfunction

Quick Answer

The P0600 Infiniti code indicates a malfunction in the automatic transmission control serial communication link. Common causes include Damaged wiring or connectors in the transmission control system, Faulty transmission control module (TCM), Malfunctioning engine control module (ECM). 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
P0600 Infiniti indicates A/T Control Serial Communication Link Malfunction.
Common causes
Common causes include Damaged wiring or connectors in the transmission control system, Faulty transmission control module (TCM), Malfunctioning engine control module (ECM).
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 12, 2024
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Code P0600 Infiniti Description

The P0600 Infiniti code indicates a malfunction in the automatic transmission control serial communication link. In simpler terms, it means that there is an issue with the communication between the various control modules in the vehicle's transmission system. This can have a significant impact on the performance of the vehicle as it can cause erratic shifting, decreased fuel efficiency, and overall poor driving experience.

OBDII Code P0600 Infiniti - A/T Control Serial Communication Link Malfunction
P0600 Infiniti Code - A/T Control Serial Communication Link Malfunction

Common Causes of P0600 Infiniti

  1. Damaged wiring or connectors in the transmission control system
  2. Faulty transmission control module (TCM)
  3. Malfunctioning engine control module (ECM)
  4. Issues with the Controller Area Network (CAN) bus
  5. Water damage or corrosion in the control module connectors

Symptoms of P0600 Infiniti

  1. Erratic shifting or slipping gears
  2. Delayed gear changes
  3. Harsh or rough shifting
  4. Illumination of the Check Engine Light
  5. Reduced fuel efficiency

How to Fix P0600 Infiniti

  1. Perform a thorough inspection of the wiring and connectors in the transmission control system.
  2. Test the TCM and ECM for proper functionality and replace if necessary.
  3. Check for any water damage or corrosion in the control module connectors and address as needed.
  4. Clear the diagnostic trouble codes and perform a road test to ensure the issue has been resolved.
  5. If the problem persists, consider consulting a professional mechanic for further diagnostics and repairs.

Cost to Fix P0600 Infiniti

The cost of repairing a P0600 Infiniti code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, you can expect to pay anywhere from $200 to $800 for parts and labor. Keep in mind that labor rates can vary greatly depending on the location and the shop you choose to take your vehicle to. It's always a good idea to get multiple quotes and compare prices before proceeding with the repairs.

Tech Notes for P0600 Infiniti

For Infiniti vehicles, the problem is usually related to the automatic transmission (A/T) control unit. Either a bad connector o bad control unit itself.

When is the Code Detected?

ECM receives incorrect voltage from A/T control unit continuously

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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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