OBD-II Diagnostic Trouble Code
P3402
Cylinder 1 Deactivation Control Performance
P
Powertrain
engine / trans
engine / trans
3
Mfr
manufacturer code
manufacturer code
4
Auxiliary emission controls
02
Cylinder 1 Deactivation Control Performance
Severity · general guide
Moderate
Fix soon — usually won't strand you
Code type
Jeep
System
Powertrain
Model
Grand Cherokee
Years
2011