Inspection Procedure: Notes

WARNING: This page is about a different car, the 2010 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Perform the universal trip to clear permanent DTCs. Refer to DTC CHECK / CLEAR .

DATA LIST

HINT:

Using Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Warm up the engine.
Turn the engine switch off.
Connect the Techstream to the DLC3.
Turn the engine switch on (IG) position.
Turn the Techstream on.
Select the item "Powertrain / ECT / Data List".
According to the display on the tester, read the "Data List".

Item	Measurement Item/ Range (display	Normal Condition
SPD (SP2)	Output shaft Speed/ min.: 0 km/h (0 mph) max.: 255 km/h (158 mph)	Vehicle stopped: 0 km/h (0 mph) HINT: Equal to vehicle speed

HINT:

SPD (SP2) is always 0 while driving:
Open or short in the sensor or circuit.
The SPD (SP2) value displayed on the tester is much lower than the actual vehicle speed:
Sensor trouble, improper installation, or intermittent connection trouble of the circuit.