AutoCodes – GMC – P216E GMC

P216E GMC Code - Cylinder 6 Injector High Control Circuit Low Voltage

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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: P216E GMC indicates Cylinder 6 Injector High Control Circuit Low Voltage.
Common causes: Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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 1,950

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Mar 23, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P216E GMC Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector high voltage supply circuit is shorted to ground for greater than 2 s.

OBDII Code P216E GMC - Cylinder 6 Injector High Control Circuit Low Voltage - AutoCodes.com — P216E GMC Code - Cylinder 6 Injector High Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P216E GMC?

Faulty Fuel Injector 6
Fuel Injector 6 harness is open or shorted
Fuel Injector 6 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P216E GMC?

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 P216E GMC 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 GMC Models

P216E 2014 GMC Sierra — Cylinder 6 Injector High Control Circuit Low Voltage
P216E 2015 GMC Sierra — Cylinder 6 Injector High Control Circuit Low Voltage
P216E 2016 GMC Sierra — Cylinder 6 Injector High Control Circuit Low Voltage
P216E 2017 GMC Sierra — Cylinder 6 Injector High Control Circuit Low Voltage
P216E 2018 GMC Sierra — Cylinder 6 Injector High Control Circuit Low Voltage

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 P216E GMC Code

1. What does the OBDII code P216E mean on a GMC vehicle?

P216E indicates that the powertrain control module (PCM) has detected a low voltage issue in the high control circuit for Cylinder 6's fuel injector.

2. What are the common symptoms of code P216E on a GMC?

Symptoms may include rough idling, misfires, reduced engine performance, poor fuel economy, and the check engine light being illuminated.

3. What causes the P216E code to appear on a GMC?

Possible causes include a faulty fuel injector, damaged wiring or connectors in the Cylinder 6 injector circuit, a malfunctioning PCM, or a blown fuse.

4. Can I drive my GMC with a P216E code?

While the vehicle may still run, driving with this code can cause further damage to the engine or catalytic converter. Addressing the issue promptly is recommended.

5. How is the P216E code diagnosed on a GMC?

A mechanic will use an OBDII scanner to confirm the code, inspect the wiring and connectors for Cylinder 6's injector, test the injector itself, and check for proper voltage and continuity in the circuit.

6. How do you fix the P216E code on a GMC?

Repairs may involve replacing the faulty fuel injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the PCM if necessary.

7. What tools are needed to diagnose and fix the P216E code?

Tools may include an OBDII scanner, a digital multimeter to test voltage and continuity, and possibly specialized tools for injector removal and installation.

8. Will resetting the check engine light fix the P216E code?

Simply resetting the light wonâ€™t fix the underlying issue. The cause of the low voltage in the Cylinder 6 injector circuit must be identified and repaired.

9. How much does it cost to repair a P216E code on a GMC?

Costs can vary depending on the specific repair, ranging from $100 for wiring repairs to $500 or more for injector replacement or PCM repair.

10. Can a dirty fuel injector cause the P216E code?

A dirty injector is unlikely to cause this code, as it specifically relates to an electrical issue. However, itâ€™s important to rule out all potential causes during diagnosis.