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.
Scan Tool Data Definitions
- Battery 1
-
The scan tool displays volts. The state of the battery voltage supplied to the body control module.
- Washer Switch
-
The scan tool displays On/Off. The scan tool displays ON when the windshield washers are requested.
- Wiper Ground
-
The scan tool displays On/Off. The BCM Displays whether the ground circuit for the windshield wipers are requested.
- Wiper Park Switch
-
The scan tool displays On/Off. This output displays On when the wipers are in park position and Off when the wipers are not in the park position.
- Wiper Relay Cmd
-
The scan tool displays On/Off. This output displays the state of the wiper relay. ON is displayed when the body control module is providing battery voltage for the wiper relay.
- Wiper Switch
-
The scan tool displays volts. This output displays the voltage supplied to the wiper switch.
- Wiper Switch State
-
The scan tool displays Undefined, Off, delay 1, delay 2, delay 3, Mist/High/Low. This output displays the state of the wiper switch.
NO RELATED
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.
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.