Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number6 / 99
Possible causes
- Control wire shorted to ground high
- Internal short in injector coil medium
- Connector pins corroded - high contact resistance low
Symptoms
- Check engine light on
- Misfire or rough idle on the affected cylinder
- Increased fuel consumption
- Possible fuel smell or smoke from exhaust
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1–4 h
- Component: hc dosing injector
- Component: injector solenoid
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012