Envoy 4WD V8-5.3L VIN P (2004)
S/C On, CC Off: When the PCM/ECM detects that the cruise set/coast signal is active and the throttle blade fully closes the cruise control system will
disengage until the PCM/ECM detects that the set/coast signal is inactive. The cruise control system will then engage and set with the new vehicle speed.
S/C On - Speed High: This parameter is displayed when the Set/Coast switch is briefly applied while the current vehicle speed is greater than the set
vehicle speed by more than a calibrated amount.
Stop Lamp Switch: The PCM/ECM detects that the stop lamps have been activated.
TAC Inhibit: The PCM/ECM detects a fault within the TAC system.
Traction: The PCM/ECM detects that the traction control system had been activated. It is also possible that a tire with low air pressure can also set this
disengagement reason.
Traction Loss: The PCM/ECM detects that the traction control system had been activated. It is also possible that a tire with low air pressure can also
set this disengagement reason.
Two Commands: The PCM/ECM detects that the Set/Coast switch and the Resume/Accel switch are active at the same time.
Two CC Commands: The PCM/ECM detects that the Set/Coast switch and the Resume/Accel switch are active at the same time.
Under Speed: The PCM/ECM detects that the vehicle speed is less than the cruise memory speed by more than a calibrated amount.
Under Set Speed: The PCM/ECM detects that the vehicle speed is less than the cruise memory speed by more than a calibrated amount.
Scan Tool Data Definitions - Disengage History
SCAN TOOL DATA DEFINITIONS
DISENGAGE HISTORY
The Cruise Control Scan Tool Definitions - Disengage History is a common list for all of the available cruise control disengagement definitions available
on the scan tool. The cruise control system equipped on the vehicle determines which cruise control disengagement parameters are available on the scan
tool.
One of the following conditions must be present in order for a disengagement parameter to appear:
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The cruise control system is active and disengagement is requested.
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The engagement of the cruise control system is requested while a fault is present.
Accel Rate: The PCM/ECM detects that the vehicle acceleration is greater than the calibrated cruise control threshold.
Bad Sequence: The PCM/ECM detects that a cruise control software execution error is present.
Brake: The PCM/ECM detects that the stop lamps have been activated or the PCM/ECM detects that a stop lamp pedal activation had not occurred
before the cruise control system was requested.
Cancel: The PCM/ECM detects that the cruise control cancel switch has been activated.
CC Sw. Position: The PCM/ECM detects that the acceleration mode is active without the activation of the Accel. switch.
Clutch: The PCM/ECM detects that the clutch pedal switch has been activated.
Clutch Switch: The PCM/ECM detects that the clutch pedal switch has been activated.
Cruise Off: The PCM/ECM detects that the cruise On/Off switch was turned to Off when the cruise control system was enabled.
Coast Low Speed: The PCM/ECM detects that the Set/Coast switch is activated until the vehicle speed is below 37 km/h( 23 mph).
Coast Disengage: When the PCM/ECM detects that the cruise set/coast signal is active and the throttle blade fully closes the cruise control system will
disengage until the PCM/ECM detects that the set/coast signal is inactive. The cruise control system will then engage and set with the new vehicle speed.
Decel Rate: The PCM/ECM detects that the vehicle deceleration is greater than the calibrated cruise control threshold.
DTC Set: The PCM/ECM detects that a DTC has been set which affects the cruise control operation.
Engine Run Time: The PCM/ECM detects that the cruise control system has been requested and the engine run time counter is not active.
