AutoCodes – Generic – P16BD

P16BD Code - Starter Cut Relay 2 Malfunction

Quick Answer

To prevent the starter from continuing to rotate due to a switching failure of the starter cut relay, two starter cut relays are connected in series. Common causes include Faulty Starter Cut Relay 2, Starter Cut Relay 2 harness is open or shorted, Starter Cut Relay 2 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
P16BD indicates Starter Cut Relay 2 Malfunction.
Common causes
Common causes include Faulty Starter Cut Relay 2, Starter Cut Relay 2 harness is open or shorted, Starter Cut Relay 2 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 2,974
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 10, 2020
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Code P16BD Description

To prevent the starter from continuing to rotate due to a switching failure of the starter cut relay, two starter cut relays are connected in series.
When the input voltage of the STRLD terminal drops to a set voltage even when the starter cut relay output (STRLY) is turned off, the Powertrain Control Module (PCM) detects a malfunction of starter cut relay 2 (ST CUT) and a DTC is stored.
OBDII Code P16BD - Starter Cut Relay 2 Malfunction - AutoCodes.com
P16BD Code - Starter Cut Relay 2 Malfunction

What are the Possible Causes of the DTC P16BD?

  • Faulty Starter Cut Relay 2
  • Starter Cut Relay 2 harness is open or shorted
  • Starter Cut Relay 2 circuit poor electrical connection

How to Fix the DTC P16BD?

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 P16BD 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 P16BD code?

Need more information on how to fix the P16BD code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16BD code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P16BD Acura β€” Starter Cut Relay 2 Malfunction
  • P16BD Buick β€” Engine Controls Ignition Relay Feedback Circuit 3 Low Voltage
  • P16BD Cadillac β€” Engine Controls Ignition Relay Feedback Circuit 3 Low Voltage
  • P16BD Chevrolet β€” Engine Controls Ignition Relay Feedback Circuit 3 Low Voltage
  • P16BD GMC β€” Engine Controls Ignition Relay Feedback Circuit 3 Low Voltage
  • P16BD Honda β€” Starter Cut Relay 2 Malfunction
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 P16BD Code

1. What are the common symptoms of OBDII code P16BD (Starter Cut Relay 2 Malfunction)?

- Common symptoms include difficulty starting the vehicle, intermittent starting issues, and the engine not cranking or starting at all.

2. What can cause the OBDII code P16BD to trigger?

- The code P16BD typically triggers due to a malfunction in the starter cut relay 2, which may be caused by relay failure, wiring issues, or a faulty ignition switch.

3. How serious is the OBDII code P16BD (Starter Cut Relay 2 Malfunction)?

- The code P16BD can prevent the vehicle from starting, which can be a serious issue if not addressed promptly. It is recommended to have the problem diagnosed and repaired as soon as possible.

4. How can I diagnose the OBDII code P16BD at home?

- Diagnosing the code P16BD may require checking the starter cut relay 2, inspecting the wiring for any damage or loose connections, and testing the ignition switch for proper functionality. A multimeter can be used to check for continuity and voltage.

5. What are some repair tips for fixing the OBDII code P16BD?

- Repair tips for addressing the code P16BD include replacing the faulty starter cut relay 2, repairing any damaged wiring, and ensuring the ignition switch is working correctly. It is also important to clear the code after completing the repairs.

6. Can I still drive my vehicle with the OBDII code P16BD present?

- It is not recommended to drive the vehicle with the OBDII code P16BD present, as it may lead to starting issues and potential stalling while driving. It is best to address the problem before driving the vehicle again.

7. How much does it typically cost to repair the OBDII code P16BD?

- The cost of repairing the OBDII code P16BD can vary depending on the underlying issue causing the malfunction. The cost may include the price of the replacement relay, wiring repairs, and labor charges if done by a professional mechanic.

8. Can the OBDII code P16BD be triggered by other issues besides the starter cut relay 2?

- While the code P16BD is specifically related to the starter cut relay 2 malfunction, other issues such as a faulty ignition switch, damaged wiring, or a failing starter motor can also cause similar symptoms and trigger the code.

9. How long does it take to repair the OBDII code P16BD?

- The repair time for the OBDII code P16BD can vary depending on the exact cause of the issue and the complexity of the repair. In general, it may take a few hours to diagnose and fix the problem, but this can vary based on the specific circumstances.

10. Can I reset the OBDII code P16BD without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is not recommended to reset the code without addressing the underlying issue causing the starter cut relay 2 malfunction. Ignoring the problem can lead to further complications and potential safety hazards.

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