P0270-11: Cylinder 4 Injector Circuit Low - Circuit short to ground: Action
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check fuel injector circuit for short circuit to ground
- Using the manufacturer approved diagnostic system clear all stored DTCs using the `Diagnosis Menu' tab and retest
- Check fuel injector resistance
- Check and install a new fuel injector as required