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Home >> Buick >> 2009 >> Allure Super >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System & Fuel System - 5.3L - DTC P0420 To DTC P3449 >> DTC P3401, P3425, P3441, or P3449 >> Typical Scan Tool Data

Typical Scan Tool Data

Cylinder Deactivation System Command

Circuit Short to Ground Open Short to Voltage
Operating Conditions:  Vehicle traveling at 40 mph, under a light load and steady throttle input
Parameter Normal Range:  V4 mode
Cylinder Deactivation System Command V8 mode V8 mode -
Cylinder 1, 4, 6, 7 Deactivation Solenoid Command

Circuit Short to Ground Open Short to Voltage
Operating Conditions:  Vehicle traveling at 40 mph, under a light load and steady throttle input
Parameter Normal Range:  ON
Cylinder 1, 4, 6, 7 Deactivation Solenoid Command OFF OFF -
Cylinder Deactivation Performance

Circuit Short to Ground Open Short to Voltage
Operating Conditions:  Vehicle traveling at 40 mph, under a light load and steady throttle input
Parameter Normal Range:  OK
Cylinder Deactivation Performance Fault Fault -