P216B
PPowertrainFuel Injector Group E Supply Voltage Low
What does this code mean?
Severity : HighP216B reports a low supply voltage on fuel injector group E. The control module powers injectors in groups and sees that the voltage supplied to group E is too low to drive them correctly. The affected cylinders may then run poorly or stop receiving fuel.
Symptoms
- Check engine light on or flashing.
- Misfires and rough running.
- Loss of power or limp mode.
- Hard start or stalling.
Possible causes
- Injector supply circuit shorted to ground.
- Internally shorted injector in the group.
- Damaged or chafed injector harness.
- Faulty supply fuse or relay.
- Faulty driver stage in the control module.
Diagnosis and repair
- Identify the injectors in group E in the manufacturer documentation.
- Check the fuse, relay and battery voltage.
- Inspect the injector harness and unplug injectors one by one to isolate a short.
- Measure each injector resistance with a multimeter, then replace the faulty part.
- Clear the code and road test.
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Code
P216B
Category
Powertrain
Prefix
P
Standard
OBD-II / SAE J2012