Fix P216C: STEP-BY-STEP diagnostic GUIDE!

The P216C: Fuel Injector Group ‘E’ Supply Voltage Circuit High refers to a condition where the voltage supplied to fuel injector group ‘E’ is higher than expected. This could be caused by excessive voltage in the circuit, faulty fuel injectors, or issues with the wiring or power supply.

P216C – Quick Overview

CodeInformation
MeaningP216C: Fuel Injector Group ‘E’ Supply Voltage Circuit High
Is it serious?Yes, this can affect engine performance, leading to improper fuel injection or even damage to components.
Possible causes– High voltage in the fuel injector group ‘E’ supply circuit
– Faulty fuel injector group ‘E’
– Wiring or power supply issues
How to diagnose?– Measure voltage in the fuel injector group ‘E’ supply circuit
– Test the fuel injector group ‘E’
– Inspect wiring and connections for faults

P216C Meaning

The P216C: Fuel Injector Group ‘E’ Supply Voltage Circuit High code indicates that the engine control module (ECM) has detected a high voltage in the supply circuit for fuel injector group ‘E’. High voltage can lead to improper operation of the fuel injectors, resulting in incorrect fuel delivery to the engine, which may cause performance issues such as misfires, rough idling, or even damage to the injectors or other components.

Step-by-step diagnostic guide

ActionDescriptionTools Needed
Check for Other CodesUse an OBD-II scanner to check for other related codes that may give further information about the issue.OBD-II Scanner
Measure Voltage in Supply CircuitUse a multimeter to measure the voltage in the fuel injector group ‘E’ supply circuit. Ensure that the voltage is within manufacturer specifications and not too high.Multimeter, Vehicle Manual
Test Fuel Injector Group ‘E’Use a diagnostic tool to test the functionality of the fuel injectors in group ‘E’. Verify that they are operating correctly and not being affected by the high voltage.Multimeter, Diagnostic Tool
Inspect Wiring and ConnectionsInspect the wiring and connections leading to fuel injector group ‘E’ for damage, loose connections, or corrosion that could be causing high voltage.Flashlight, Safety Gloves
Check Power SupplyInspect the power supply to the fuel injector group ‘E’. Ensure the voltage regulator or related components are functioning properly and not causing over-voltage.Multimeter, Wiring Diagram
Repair or Replace Faulty ComponentsRepair or replace any faulty wiring, connections, or injectors as needed to resolve the high voltage issue.Replacement Parts, Tools
Clear the Code and Test DriveAfter completing repairs, clear the P216C code using an OBD-II scanner and take the vehicle for a test drive to verify that the issue is resolved.OBD-II Scanner
Recheck for CodesAfter the test drive, re-scan the vehicle to ensure the P216C code does not return.OBD-II Scanner
Bluetooth OBD-II scanners

OBD-II scanner Buyer’s Guide

  • Scanner features explained
  • Different types of scanners
  • Scanners for coding/odometer/ECU/checks
  • Best picks + discount codes

Download PDF FREE

    Leave a Comment