Yukon/Denali 4WD V8-5.3L VIN T (2004)
Left Rear Damper Actuator-ON/OFF: This data refers to the state of the suspension damper solenoid contained within the shock absorber.
LF Position Sensor-Range 0.25-.75 volts: This data refers to the vehicle height measured in volts.
LR Position Sensor-Range 0.25-.75 volts: This data refers to the vehicle height measured in volts.
Marker Pulse-High Low: This data indicates the state of marker pulse in the steering wheel position sensor.
Rear Leveling Air Pressure, if equipped-psi/kpa: This data indicates the system pressure in psi.
Rear Leveling Air Pressure, if equipped-Volts: This data indicates the system pressure in volts.
Right Front Damper Actuator-ON/OFF: This data refers to the state of the suspension damper solenoid contained within the shock absorber.
Right Rear Damper Actuator-ON/OFF: This data refers to the state of the suspension damper solenoid contained within the shock absorber.
RF Position Sensor-Range 0.25-4.75 volts: This data refers to the vehicle height measured in volts.
RR Position Sensor-Range 0.25-4.75 volts: This data refers to the vehicle height measured in volts.
Sensor Supply Voltage-Volts: This data indicates the voltage being supplied to the sensors from the ESC module.
Vehicle Speed-Range-193 km/h (0-120 mph): This is the ESC module measurement of the vehicle's speed from a discrete output from the powertrain
control module (PCM)
Scan Tool Data List - ESC
Scan Tool Data List
The electronic suspension control (ESC) scan tool data list contains all the electronic suspension control system related parameters that are available
on the scan tool. The parameters in the list are arranged in alphabetical order. The column, Data List, indicates the location of the parameter within the
scan tool menu selections.
Use the ESC scan tool data list as directed by a diagnostic table or in order to supplement the diagnostic procedures. Begin all of the diagnostic
procedures with the Diagnostic System Check. Use the ESC scan tool data list only after the following is determined:
^
The ESC Diagnostic System Check is complete.
^
The on board diagnostics are operating correctly.
^
No diagnostic trouble codes (DTCs) are displayed.
The typical scan tool data values are an average of the displayed values recorded from normally operating vehicles. The typical scan tool data values
are intended to represent what a normally functioning system would display with certain preliminary settings. The values you get may vary slightly due
to a low battery charge or other reasons. But the values should be very close.
Use only the parameters listed in the tables for diagnosis. If a scan tool reads other parameters, the values are not recommended for use in diagnosis.
Refer to Scan Tool Data Definitions for further detailed information. See: Scan Tool Testing - Electronic Suspension Control (ESC)/Scan Tool Data
Definitions - ESC
Data Display
The scan tool's input display function can be helpful in determining if the electronic suspension control (ESC) module is receiving the correct input
status. This
can assist in determining if the ESC system is actually commanding a suspension damper solenoid.
Cycle Outputs
A scan tool may be used in order to command the suspension damper solenoids and SERVICE RIDE CONTROL message ON or OFF. This can be
very helpful in determining if a certain portion of a circuit or a component is in working order.
The following tests are available under the Special Functions selection. The following can be commanded ON or OFF:
^
Suspension damper solenoids
^
SERVICE RIDE CONTROL message
