From Ross-Tech Wiki

17624/P1216 - Fuel Injector for Cylinder 4 (N33): Short to B+

Possible Symptoms

  • MIL On
  • Poor engine performance

Possible Causes

  • Fuse for injector
  • Wiring harness issue
  • Failed injector
  • Failed ECM

Possible Solutions

  • Ohm test injector, replace if needed, see repair manual
  • Inspect wiring to and from injector, see repair manual