Autel DS708 is a powerful diagnostic scanner capable of in-depth vehicle analysis. However, its ability to check transmission pressure directly isn’t a straightforward yes or no answer. While the DS708 can read transmission-related data, including trouble codes, sensor readings, and some live data parameters, it may not explicitly provide transmission pressure readings on all vehicle makes and models. This capability depends heavily on the specific vehicle’s communication protocols and the data that the vehicle’s Transmission Control Module (TCM) makes available.
The DS708 excels at retrieving Diagnostic Trouble Codes (DTCs) related to transmission issues, which can indirectly point to pressure problems. For instance, codes related to solenoid performance, shift issues, or slipping can suggest underlying pressure irregularities. By analyzing these codes in conjunction with live data parameters like shift solenoid duty cycles and turbine speed, experienced technicians can infer potential pressure issues.
However, for a definitive transmission pressure reading, a dedicated mechanical gauge connected directly to the transmission’s test port is often necessary. This method provides a direct, real-time measurement.
Why might the DS708 not show direct transmission pressure?
Many manufacturers don’t include transmission pressure as a readily accessible data point through the OBD-II port. This is often due to the need for specialized equipment and safety concerns related to accessing high-pressure hydraulic systems.
How to use the DS708 for transmission diagnostics:
- Connect the DS708 to the vehicle’s OBD-II port.
- Select the correct vehicle make and model.
- Choose “Transmission” or “Powertrain” from the diagnostic menu.
- Read and interpret any stored DTCs.
- Access live data parameters related to the transmission. Look for data like:
- Shift solenoid duty cycles
- Turbine speed sensor readings
- Vehicle speed sensor readings
- Transmission fluid temperature
Alternative solutions for checking transmission pressure:
- Dedicated transmission pressure gauge: This provides the most accurate reading.
- More advanced scan tools: Higher-end diagnostic tools, often used by professional mechanics, may offer direct transmission pressure readings for specific vehicle models. Consider researching Autel’s newer models for potentially enhanced capabilities.
In summary: While the Autel DS708 might not always display explicit transmission pressure readings, it provides valuable data that, when interpreted correctly, can indicate potential pressure-related problems. If a direct pressure reading is required, a dedicated mechanical gauge or a more advanced scan tool is recommended.
