Engine-CodesInfiniti – P0616 Infiniti

P0616 Infiniti Code - Starter Relay Circuit Low

Quick Answer

The P0616 Infiniti code refers to an issue with the starter relay circuit being detected as low. Common causes include Faulty starter relay, Weak or failing battery, Poor electrical connections. 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
P0616 Infiniti indicates Starter Relay Circuit Low.
Common causes
Common causes include Faulty starter relay, Weak or failing battery, Poor electrical connections.
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 P0616 Infiniti Description

The P0616 Infiniti code refers to an issue with the starter relay circuit being detected as low. The starter relay is a critical component that controls the flow of electrical current to the starter motor, which is responsible for cranking the engine. When this circuit is detected as low, it means that there is an insufficient amount of voltage reaching the starter motor. This can result in the engine either cranking slowly or failing to start altogether.

OBDII Code P0616 Infiniti - Starter Relay Circuit Low
P0616 Infiniti Code - Starter Relay Circuit Low

Common Causes of P0616 Infiniti

  1. Faulty starter relay.
  2. Weak or failing battery.
  3. Poor electrical connections.
  4. Damaged wiring harness.
  5. Issues with the ignition switch.

Symptoms of P0616 Infiniti

  1. Engine cranks slowly or fails to start.
  2. Clicking sound when attempting to start the engine.
  3. Dashboard warning lights related to the starting system.
  4. Intermittent starting issues.

How to Fix P0616 Infiniti

  1. Perform a thorough inspection of the starter relay, battery, and electrical connections to identify any visible damage or corrosion.
  2. Test the voltage output of the battery to ensure it is within the manufacturer's specifications.
  3. Check the wiring harness for any signs of damage or fraying and repair or replace as needed.
  4. Test the ignition switch to determine if it is functioning properly and replace if necessary.
  5. Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0616 Infiniti

The cost of repairing a starter relay circuit low issue can vary depending on the specific cause of the problem and the extent of the repair needed. In general, replacing a faulty starter relay can cost anywhere from $50 to $150, while a new battery can range from $100 to $200. Labor costs for diagnosing and repairing the issue can add an additional $100 to $200, depending on the shop's hourly rates and the complexity of the repair. It's important to consult with a trusted mechanic to get an accurate estimate for your specific vehicle.

When is the Code Detected?

The P0616 code is detected when the Engine Control Module (ECM) has detected an intermittent short to ground on the starter relay control circuit.

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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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