P16E8 Chevrolet Code - Engine Controls Ignition Relay Signal Message Counter Incorrect
Quick Answer
Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Engine Controls Ignition Relay, Engine Controls Ignition Relay harness is open or shorted, Engine Controls Ignition Relay 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
- P16E8 Chevrolet indicates Engine Controls Ignition Relay Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty Engine Controls Ignition Relay, Engine Controls Ignition Relay harness is open or shorted, Engine Controls Ignition Relay 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.
Code P16E8 Chevrolet Description
What are the Possible Causes of the DTC P16E8 Chevrolet?
- Faulty Engine Controls Ignition Relay
- Engine Controls Ignition Relay harness is open or shorted
- Engine Controls Ignition Relay circuit poor electrical connection
How to Fix the DTC P16E8 Chevrolet?
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 P16E8 Chevrolet 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.
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Information for Specific Chevrolet Models
- P16E8 2014 Chevrolet Silverado — Engine Controls Ignition Relay Signal Message Counter Incorrect
- P16E8 2015 Chevrolet Silverado — Engine Controls Ignition Relay Signal Message Counter Incorrect
- P16E8 2016 Chevrolet Silverado — Engine Controls Ignition Relay Signal Message Counter Incorrect
- P16E8 2017 Chevrolet Silverado — Engine Controls Ignition Relay Signal Message Counter Incorrect
- P16E8 2018 Chevrolet Silverado — Engine Controls Ignition Relay Signal Message Counter Incorrect
Frequently Asked Questions about P16E8 Chevrolet Code
1. What does the OBDII code P16E8 mean on a Chevrolet?
P16E8 indicates an issue where the Engine Controls Ignition Relay Signal Message Counter is incorrect, suggesting a communication error between the ignition relay and the Engine Control Module (ECM).
2. What are the common symptoms of a P16E8 code on a Chevrolet?
Symptoms may include difficulty starting the engine, stalling, reduced engine performance, and the Check Engine Light being illuminated.
3. What causes the P16E8 code to appear on a Chevrolet?
Common causes include a faulty ignition relay, wiring or connector issues, a malfunctioning ECM, or communication errors in the CAN bus system.
4. Can I drive my Chevrolet with a P16E8 code?
It’s not recommended, as this code can cause intermittent engine performance issues or stalling, which may compromise safety.
5. How do I diagnose the P16E8 code on my Chevrolet?
Start by inspecting the ignition relay, wiring, and connectors for damage or corrosion. Use a scan tool to check live data and ensure proper communication between modules.
6. How can I fix the P16E8 code on my Chevrolet?
Repairs may include replacing a faulty ignition relay, repairing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.
7. Is the P16E8 code specific to certain Chevrolet models?
While it can appear on various Chevrolet models, it’s more common in vehicles that use advanced communication systems for ignition control.
8. Will clearing the P16E8 code fix the problem?
Clearing the code may temporarily remove the Check Engine Light, but the underlying issue must be resolved to prevent the code from returning.
9. How much does it cost to repair a P16E8 code on a Chevrolet?
Repair costs can vary depending on the root cause, ranging from $50 for a simple relay replacement to $500 or more for ECM repairs or replacements.
10. Can a weak battery cause the P16E8 code on a Chevrolet?
Yes, a weak or failing battery can cause communication issues in the vehicle’s electrical system, potentially triggering the P16E8 code.
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