AutoCodes – Generic – P16EA

P16EA Code - Control Module Serial Peripheral Interface Bus 3

Quick Answer

This diagnostic applies to internal microprocessor integrity conditions within the device. Common causes include Low battery voltage, Reprogram Powertrain Control Module (PCM), Faulty Powertrain Control Module. 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: P16EA indicates Control Module Serial Peripheral Interface Bus 3.
Common causes: Common causes include Low battery voltage, Reprogram Powertrain Control Module (PCM), Faulty Powertrain Control Module.
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 13,934

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 26, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P16EA Description

This diagnostic applies to internal microprocessor integrity conditions within the device. This diagnostic also addresses if the device is not programmed. The device monitors its ability to read and write to the memory. It also monitors a timing function. No external circuits are involved. The Diagnostic Trouble Code (DTC) will be set when the device detects an internal malfunction or incomplete programming.

OBDII Code P16EA - Control Module Serial Peripheral Interface Bus 3 - AutoCodes.com — P16EA Code - Control Module Serial Peripheral Interface Bus 3

What does this mean?

What are the Possible Causes of the DTC P16EA?

Low battery voltage
Reprogram Powertrain Control Module (PCM)
Faulty Powertrain Control Module
Powertrain Control Module harness is open or shorted
Powertrain Control Module circuit poor electrical connection

How to Fix the DTC P16EA?

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 P16EA 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 P16EA code?

Need more information on how to fix the P16EA code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16EA code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P16EA BMW — Internal Control Module Watchdog Error
P16EA Buick — Control Module Serial Peripheral Interface Bus 3
P16EA Cadillac — Control Module Serial Peripheral Interface Bus 3
P16EA Chevrolet — Control Module Serial Peripheral Interface Bus 3
P16EA GMC — Control Module Serial Peripheral Interface Bus 3
P16EA MINI — Internal Control Module Watchdog Error

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 P16EA Code

1. What are the common symptoms of OBDII code P16EA?

The common symptoms of OBDII code P16EA include rough idling, engine misfires, decreased fuel efficiency, and potential stalling of the vehicle.

2. What can cause the OBDII code P16EA to trigger?

The OBDII code P16EA is typically triggered by issues with the Control Module Serial Peripheral Interface Bus 3, such as faulty wiring, damaged connectors, or a malfunctioning control module.

3. How serious is the OBDII code P16EA?

While the OBDII code P16EA may not cause immediate drivability issues, it is important to address it promptly to prevent further damage to the vehicle's engine or emissions system.

4. Can I drive my vehicle with the OBDII code P16EA illuminated?

It is generally not recommended to drive your vehicle with the OBDII code P16EA illuminated, as it can lead to reduced engine performance and potential long-term damage if left unaddressed.

5. How can I diagnose and repair the OBDII code P16EA?

Diagnosing and repairing the OBDII code P16EA usually involves checking the wiring and connectors related to the Control Module Serial Peripheral Interface Bus 3, testing the control module for faults, and replacing any damaged components as needed.

6. Is it possible to reset the OBDII code P16EA without fixing the underlying issue?

While you can clear the code using an OBDII scanner, the underlying issue causing the code will persist until it is properly diagnosed and repaired.

7. Can a DIY enthusiast fix the OBDII code P16EA at home?

Depending on your skill level and access to tools, it is possible to address the OBDII code P16EA at home by following diagnostic procedures and replacing any faulty components.

8. How much does it typically cost to repair the OBDII code P16EA at a mechanic?

The cost of repairing the OBDII code P16EA at a mechanic can vary depending on the extent of the issue, but it may range from $100 to $500 or more, including parts and labor.

9. Will the OBDII code P16EA cause my vehicle to fail an emissions test?

If left unresolved, the OBDII code P16EA can cause your vehicle to fail an emissions test due to increased emissions and potential malfunctions in the engine control system.

10. How long can I safely drive with the OBDII code P16EA before getting it repaired?

It is advisable to address the OBDII code P16EA as soon as possible to avoid any further complications or damage to your vehicle. Driving with this code present for an extended period is not recommended.