AutoCodes – Buick – P216B Buick

P216B Buick Code - Cylinder 5 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 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 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: P216B Buick indicates Cylinder 5 Injector High Control Circuit Low Voltage.
Common causes: Common causes include Faulty Fuel Injector 5, Fuel Injector 5 harness is open or shorted, Fuel Injector 5 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 889

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
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Code P216B Buick 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 P216B Buick - Cylinder 5 Injector High Control Circuit Low Voltage - AutoCodes.com — P216B Buick Code - Cylinder 5 Injector High Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P216B Buick?

Faulty Fuel Injector 5
Fuel Injector 5 harness is open or shorted
Fuel Injector 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P216B Buick?

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 P216B Buick 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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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 P216B Buick Code

1. What are the common symptoms of OBDII code P216B in a Buick related to the Cylinder 5 Injector High Control Circuit Low Voltage?

- Common symptoms include rough idling, engine misfires, reduced engine performance, and in some cases, the Check Engine light may illuminate.

2. What are the possible causes of the OBDII code P216B in a Buick indicating an issue with the Cylinder 5 Injector High Control Circuit Low Voltage?

- Possible causes may include a faulty fuel injector, wiring or connector issues in the injector circuit, a malfunctioning Engine Control Module (ECM), or a problem with the injector driver circuit.

3. How can I diagnose the OBDII code P216B in a Buick related to the Cylinder 5 Injector High Control Circuit Low Voltage?

- Diagnosis typically involves using a scan tool to retrieve the fault code, conducting a visual inspection of the injector and its wiring, performing resistance and continuity tests on the circuit, and checking for any other related issues.

4. What are some repair tips for addressing the OBDII code P216B in a Buick indicating Cylinder 5 Injector High Control Circuit Low Voltage?

- Repair tips may include repairing or replacing damaged wiring or connectors, testing and replacing the faulty fuel injector, checking and potentially replacing the ECM if necessary, and clearing the code after the repairs are completed.

5. Can driving with the OBDII code P216B in a Buick indicating Cylinder 5 Injector High Control Circuit Low Voltage cause further damage to the vehicle?

- Continuing to drive with this issue can potentially lead to poor engine performance, decreased fuel efficiency, and further damage to the engine over time. It is recommended to address the problem promptly.

6. How much does it typically cost to repair the OBDII code P216B in a Buick related to the Cylinder 5 Injector High Control Circuit Low Voltage?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $150 to $500 or more, including parts and labor.

7. Is it safe to continue driving my Buick with the Check Engine light on due to the OBDII code P216B indicating Cylinder 5 Injector High Control Circuit Low Voltage?

- While the vehicle may still be operable, it is recommended to have the issue diagnosed and repaired as soon as possible to prevent any potential damage to the engine or other components.