P0205
High SeverityInjector Circuit Malfunction - Cylinder 5
Fuel System
What Does P0205 Mean?
Cylinder 5 injector circuit fault. Only applies to 5+ cylinder engines.
Common Fix
Replace cylinder 5 injector
Estimated Cost (DIY)
$40 - $150
Symptoms
- ⚠️Cylinder 5 misfire
- ⚠️Rough running
- ⚠️Loss of power
Common Causes
How to Diagnose P0205
- 1Check connector and wiring
- 2Test injector resistance
- 3Swap with known good injector
- 4Replace if confirmed
OEM Diagnostic Flowchart
Scroll to load technician if/then branches.
Read live data and freeze frame for P0205 to pinpoint the cause before buying parts.
Related Resources
Repair guides, symptom pages, and wiring diagrams related to P0205.
OEM Manual Evidence
Browse →A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali AWD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL Denali 2WD V8-6.2L Service Manual | Operation CHARM Operation CHARM : Car...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-6.0L Service Manual | Operation CHARM Operation CHARM : Car repair...
A L L Diagnostic Trouble Codes ( DTC ) — 2013 GMC Truck Yukon XL 4WD V8-5.3L Service Manual | Operation CHARM Operation CHARM : Car repair...
Exact Vehicle Hubs
Browse →Open the exact vehicle hub grounded by OEM manual evidence related to P0205.
Open the exact vehicle hub grounded by OEM manual evidence related to P0205.
Open the exact vehicle hub grounded by OEM manual evidence related to P0205.
Open the exact vehicle hub grounded by OEM manual evidence related to P0205.
Related Codes
General fuel injector circuit fault. The ECM detected an issue with the injector driver circuit.
Cylinder 5 is misfiring. Only on 5+ cylinder engines.
Cylinder 6 injector circuit fault. Only on 6+ cylinder engines.
Frequently Asked Questions
- Do I need to replace all injectors?
- No — only replace the one that has failed. The others may be fine for many more miles.
- What does injector resistance tell me?
- Compare to specs (typically 11-18 ohms for high-impedance injectors). Out of range means the injector is bad.

