P216B Cadillac 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 Cadillac 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.
Code P216B Cadillac Description
What are the Possible Causes of the DTC P216B Cadillac?
- 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 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 P216B 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 P216B Cadillac code?
Need more information on how to fix the P216B Cadillac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P216B Cadillac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P216B Cadillac Code
What does the OBDII code P216B mean on a Cadillac?
The P216B code indicates a problem with the high control circuit for the fuel injector in cylinder 5, specifically a low voltage condition.
What are the common symptoms of code P216B in a Cadillac?
Symptoms may include rough idling, reduced engine performance, misfires, poor fuel economy, and an illuminated check engine light.
What causes the P216B code to appear on a Cadillac?
Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a bad injector driver in the PCM, or a weak battery.
Can I drive my Cadillac with a P216B code?
Driving with this code is not recommended as it may lead to engine misfires, damage to the catalytic converter, and reduced performance.
How can I diagnose the P216B code on my Cadillac?
Start by inspecting the wiring and connectors for cylinder 5's injector, check for signs of corrosion or damage, and use a multimeter to test for proper voltage in the circuit.
What tools are needed to diagnose and repair P216B?
You’ll need an OBDII scanner, a multimeter, and possibly a fuel injector testing kit to diagnose and repair this code.
How do I fix the P216B code on my Cadillac?
Repairs may involve replacing the cylinder 5 fuel injector, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the PCM.
Can a bad fuel injector cause the P216B code?
Yes, a faulty fuel injector can cause the P216B code as it may not function correctly, resulting in low voltage in the high control circuit.
What should I check first when troubleshooting a P216B code?
Begin by inspecting the wiring and connectors for cylinder 5's fuel injector for any visible damage, corrosion, or loose connections.
How much does it cost to fix a P216B code on a Cadillac?
Repair costs can vary depending on the cause but typically range from $150 to $500, with fuel injector replacement being the most expensive repair.
Discuss the causes and fixes for P216B Cadillac OBDII Code
Code P216B Cadillac comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
