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.
Data List / Active Test
- READ DATA LIST
HINT:
Using the Techstream's DATA LIST allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.
- Connect the Techstream to the DLC3.
- Turn the power switch ON (IG).
- Read the DATA LIST according to the display on the tester.
Body ECU
DATA LISTTester Display Measurement Item / Range Normal Condition Diagnostic Note D DOR CTY SW Driver side door courtesy switch signal / ON or OFF ON: Driver side door is open
OFF: Driver side door is closed- P DOR CTY SW Passenger side door courtesy switch signal / ON or OFF ON: Passenger side door is open
OFF: Passenger side door is closed-
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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