AutoCodes – Cadillac – P216F Cadillac

P216F Cadillac Code - Cylinder 6 Injector High Control Circuit High 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: P216F Cadillac indicates Cylinder 6 Injector High Control Circuit High 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 819

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 Mar 23, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P216F Cadillac 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 voltage for greater than 2 s.

OBDII Code P216F Cadillac - Cylinder 6 Injector High Control Circuit High Voltage - AutoCodes.com — P216F Cadillac Code - Cylinder 6 Injector High Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P216F Cadillac?

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 P216F Cadillac?

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 P216F Cadillac 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 P216F Cadillac code?

Need more information on how to fix the P216F Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P216F Cadillac code diagnosed by a professional: Find a repair shop in your area

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 P216F Cadillac Code

1. What does the OBDII code P216F mean on a Cadillac?

P216F indicates that the Engine Control Module (ECM) has detected a high voltage condition in the control circuit of cylinder 6's fuel injector.

2. What are the common symptoms of code P216F on a Cadillac?

Symptoms may include engine misfires, reduced engine performance, hesitation during acceleration, poor fuel economy, or an illuminated Check Engine Light.

3. What causes the P216F code to appear in a Cadillac?

Common causes include a faulty fuel injector for cylinder 6, damaged or corroded wiring in the injector circuit, a malfunctioning ECM, or a poor electrical connection.

4. Can I drive my Cadillac with the P216F code active?

Driving with this code is not recommended, as it can lead to poor engine performance, increased emissions, and potential damage to other components over time.

5. How do I diagnose the P216F code in a Cadillac?

Diagnosis involves inspecting the wiring and connectors for cylinder 6's injector, testing the injector for proper resistance, and using a scan tool to monitor the injector circuit voltage.

6. How is the P216F code fixed on a Cadillac?

Repairs may include replacing the faulty injector, repairing or replacing damaged wiring, cleaning corroded connections, or reprogramming or replacing the ECM if necessary.

7. How much does it cost to fix the P216F code on a Cadillac?

Repair costs vary, but replacing a fuel injector can range from $200 to $500, while wiring repairs or ECM replacement may increase the cost.

8. Can a dirty fuel injector cause the P216F code in a Cadillac?

A dirty injector is unlikely to cause this specific code. The P216F code is related to electrical issues, not clogging or contamination.

9. Will resetting the Check Engine Light fix the P216F code?

Resetting the light may clear the code temporarily, but the underlying issue must be addressed to prevent the code from returning.

10. What tools are needed to troubleshoot the P216F code on a Cadillac?

Tools may include a digital multimeter, an OBDII scan tool, wiring diagrams, and potentially an injector tester or noid light for further diagnostics.