Envoy 4WD V8-5.3L (2007)
* Manifold absolute pressure (MAP) sensor fault
* Accelerator pedal position too high, electronic throttle control
* Piston protection active, knock detected
* Engine oil temperature out of range
* Engine oil pressure out of range
* Engine oil aeration present
* Engine metal over temperature protection active
* Accelerator pedal position rate of increase too high, electronic throttle control
* Cylinder deactivation solenoid driver circuit fault
* Engine coolant temperature sensor fault
* Catalytic converter over temperature protection active
* Brake booster vacuum pressure low
* Axle torque limiting active
* Brake torque management active
* Vehicle speed sensor fault
* Engine coolant temperature too high
* Engine not running
* Vehicle speed not zero
* Engine coolant temperature low
* Reduced Engine Power Active, electronic throttle control
* Transmission gear incorrect
* Transmission range incorrect
* Ignition voltage out of range
* Maximum V4 mode time exceeded
Listed below are the powertrain conditions that will inhibit a cylinder deactivation solenoid from being energized, with the ignition ON and the engine
OFF, while using the scan tool output control function:
* Engine speed not zero
* Vehicle speed not zero
* Transmission not in park or neutral
* Ignition voltage out of range
For the system description covering the hydraulic/mechanical system of cylinder deactivation, refer to Cylinder Deactivation (Active Fuel Management)
System Description.