Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Chevrolet Suburban 2WD V8-5.3LFACTORY OEM SERVICE PROCEDURE
Scan Tool Data Definitions
Scan Tool Data Definitions
ASC Disable Switch:This parameter displays the state of the ASC switch it will be active or inactive
ASC Learn Status:This parameter displays the learned status of the ASC module it will display running, passed or cancelled.
ASC System Status:This parameter displays the status of the ASC system it will display unknown, normal, disabled or locked.
Battery Voltage:This parameter displays the battery voltage at the ASC module.
Driver Door Ajar Sw.:This parameter displays the status of the driver door ajar switch it will display door closed or door ajar.
Passenger Door Ajar Sw:This parameter displays the status of the passenger door ajar switch it will display door closed or door ajar.
Left Rear Door Ajar Sw:This parameter displays the status of the left rear door ajar switch it will display door closed or door ajar.
Right Rear Door Ajar Sw:This parameter displays the status of the right rear door ajar switch it will display door closed or door ajar.
Left ASC Board Commanded:This parameter displays the commanded position of the left running board.
Left ASC Board Learned:This parameter will display yes or no to let you know if it has learned it's fully extended and fully retracted limits
Left ASC Board Position:This parameter displays the running boards position in counts 0-255
Right ASC Board Commanded:This parameter displays the commanded position of the right running board.
Right ASC Board Learned:This parameter will display yes or no to let you know if it has learned it's fully extended and fully retracted limits
Right ASC Board Position:This parameter displays the running boards position in counts 0-255
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.