Powertrain
generic or reserved
P3455
Cylinder 7 Exhaust Valve Control Circuit Low
The engine control module has detected a low voltage condition in the control circuit of the cylinder 7 exhaust valve deactivation solenoid. A short to ground or low-side driver fault prevents proper actuation of the exhaust valve during cylinder deactivation events on cylinder 7.
SystemPowertrain
Typegeneric or reserved
GroupP3
Range / number4 / 55
Possible causes
- Solenoid or wiring shorted to ground high
- ECM low-side driver failed medium
- Connector corrosion or pin damage low
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 150–1200 €
- Estimated time: 1–6 h
- Component: cylinder deactivation solenoid
- Component: engine wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012