OBD-II code · Powertrain (generic)
P0209 Injector Circuit Malfunction — Cylinder 9
An electrical fault has been detected in the cylinder 9 injector circuit — open winding, short to ground or short to supply. This typically disables that injector to protect the driver stage in the ECU; the cylinder runs without fuel and triggers a misfire code as well.
Is it safe to drive with P0209?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyInjector winding failed open
- PossibleWiring or connector fault
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–3.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Fuel Injector, Injector Wiring
Related codes
- P0201Injector Circuit Malfunction — Cylinder 1
- P0202Injector Circuit Malfunction — Cylinder 2
- P0203Injector Circuit Malfunction — Cylinder 3
- P0204Injector Circuit Malfunction — Cylinder 4
- P0205Injector Circuit Malfunction — Cylinder 5
- P0206Injector Circuit Malfunction — Cylinder 6
- P0207Injector Circuit Malfunction — Cylinder 7
- P0208Injector Circuit Malfunction — Cylinder 8
- P0210Injector Circuit Malfunction — Cylinder 10
- P0211Injector Circuit Malfunction — Cylinder 11
- P0212Injector Circuit Malfunction — Cylinder 12
- P020ACylinder 1 Injection Timing
- P020BCylinder 2 Injection Timing
- P020CCylinder 3 Injection Timing
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.