OBD-II code · Powertrain (generic, extended)
P2699 Exhaust Aftertreatment Fuel Injector A Circuit Low
Voltage on the 7th injector control line is below the expected window. Usually a short to ground or a shorted solenoid coil.
Is it safe to drive with P2699?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyControl wire shorted to ground
- PossibleInternal short in injector coil
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- Hc Dosing Injector, Injector Solenoid, Wiring Harness
Related codes
- P2696Injector Data Incompatible
- P2697Exhaust Aftertreatment Fuel Injector A Circuit / Open
- P2698Exhaust Aftertreatment Fuel Injector A Performance
- P269AExhaust Aftertreatment Fuel Injector A Circuit High
- P269BExhaust Aftertreatment Glow Plug Control Circuit / Open
- P269CExhaust Aftertreatment Glow Plug Control Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.