Scan Tool Data Definitions
This is the exact OEM manual section for the path above. Use the breadcrumb to move up or down the tree until you reach the precise year, make, model, and subsystem you need.
Need a step-by-step guide?
Get an AI-powered repair guide with parts lists, cost estimates, and clear instructions for your Chevrolet hyperlink.
Revenue RailIntent: manual
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
More supporting gear
Torque wrench
Use the factory procedure with the right tightening tool.
Manual-based work becomes much easier when you can torque correctly.
Shop on Amazon →Trim tool set
Useful for clips, covers, and trim pieces called out by the manual.
Most manual procedures assume you have a good trim removal kit.
Shop on Amazon →Multimeter kit
Great for electrical troubleshooting and manual-tested circuits.
Electrical work in manuals often needs a meter more than another wrench.
Shop on Amazon →Scan Tool Data Definitions
Use the scan tool data display values and definitions information in order to assist in diagnosing vehicle malfunctions. Compare the vehicles actual scan tool data display with the typical data value in the table. Use the data in order to aid in understanding the nature of the concern when the vehicle data display does not match the typical data values. Refer to Scan Tool Data List. Scan Tool Data List
Washer Fluid Level
- The scan tool displays OK/Low. Low is displayed when the fluid level is below the switch threshold and OK is displayed if fluid level is above the switch threshold.
Washer Relay Cmd.
- The scan tool displays Off/On. When the windshield washer system is active, the scan tool displays the BCM the commanded output state of the windshield washer relay as On.
Windshield Washer Switch
- The scan tool displays Active/Inactive. When the washer switch is pressed, the scan tool displays the switch input to the BCM as Active. The BCM then commands the wiper relay ON and keeps it ON until 2 wipe cycles have completed after the switch has been released.
Windshield Wiper Switch
- The scan tool displays Off/Intermittent/Low/Switch Fault. When the windshield wiper system is active, the scan tool will display Intermittent or Low as selected. The scan tool will display Switch Fault if the BCM senses an invalid wiper switch input.
Wiper Delay Setting
- The scan tool displays 0/1-5. When the wiper switch is in the Delay mode, the scan tool will display the wiper switch delay position 1-5 as selected.
Wiper High Speed Relay Cmd.
- The scan tool displays Off/On. When the wiper system is in the active state, the scan tool displays the BCM commanded output to the wiper high relay as On.
Wiper High Speed Switch
- The scan tool displays Active/Inactive. When the wiper switch is in the high speed position, this parameter displays the switch input to the BCM as Active.
Wiper Park Switch
- The scan tool displays Active/Inactive. The body control module (BCM) uses this input to determine the position of the wipers. When the wipers are in the PARK or down position, the wiper motor park switch signal circuit of the BCM is pulled low and the scan tool will display Active.
Wiper Relay Cmd.
- The scan tool displays Off/On. When the windshield wiper system is active, the scan tool displays the BCM commanded output state of the wiper relay as On.