2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2977
DTC Descriptors
DTC P3401
- Cylinder 1 Deactivation Solenoid Control Circuit
DTC P3425
- Cylinder 4 Deactivation Solenoid Control Circuit
DTC P3441
- Cylinder 6 Deactivation Solenoid Control Circuit
DTC P3449
- Cylinder 7 Deactivation Solenoid Control Circuit
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The cylinder deactivation system is used to deactivate 4 cylinders of the engine under light load driving conditions. The engine control module
(ECM) commands the cylinder deactivation solenoids ON to deactivate engine cylinders 1, 7, 6, and 4, switching to 4 cylinders or V4 mode. The
cylinder deactivation solenoids controls the oil flow to the appropriate valve lifters. The engine operates on 8 cylinders or V8 mode, during engine
starting, engine idling, and medium to heavy throttle conditions.
Ignition voltage is supplied directly to the 4 cylinder deactivation solenoids. The engine control module (ECM) controls the 4 cylinder deactivation
solenoids by grounding the control circuit with a solid state device called a driver.
Conditions for Running the DTC
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Wednesday, March 11, 2020
2010 Cadillac Truck Escalade RWD V8-6.0L Hybrid Page 2977
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