Toyota Corolla (E120): Data list/active test
1. Data list
Hint
: using the data list displayed by the hand–held tester or the obd ii scan tool, you can read the value of the switches, sensors, actuators and so on without parts removal. Reading the data list as a first step of troubleshooting is one method to shorten diagnostic time.
Notice
: the values given below for ”normal condition” are representative values. A vehicle may still be normal even if its value differs from those listed here. Do not solely depend on the ”normal condition” here when deciding whether a part is faulty or not.
- Warm up the engine.
- turn the ignition switch off.
- connect the hand–held tester or the obd ii scan tool to the dlc3.
- turn the ignition switch on.
- push the ”on” button of the hand–held tester or the obd ii scan tool.
- select the item ”diagnosis / enhanced obd ii / data list”.
- according to the display on the tester, read the ”data list”.



*1: If no conditions are specifically stated for ”ldling”, it means the shift lever is in the n or p position, the a/c switch is off and all accessory switches are off.
*2: A/t only
2. Active test
Hint
: performing the active test using the hand–held tester or the obd ii scan tool allows the relay, vsv, actuator and so on to operate without parts removal. Performing the active test as a first step of troubleshooting is one method to shorten diagnostic time.
It is possible to display the data list during the active test.
- warm up the engine.
- turn the ignition switch off.
- connect the hand–held tester or the obd ii scan tool to the dlc3.
- turn the ignition switch on.
- push the ”on” button of the hand–held tester or the obd ii scan tool.
- select the item ”diagnosis / enhanced obd ii / active test”.
- according to the display on the tester, perform the ”active test”.


Other materials:
Audio unit
1 Bluetooth® connection status
If “BT” is not displayed, the Bluetooth® audio/phone cannot be used.
2 Display
A message, name, number, etc. is displayed.
Lower-case characters and special characters cannot be displayed.
3 Displays the set up menu
4 Selects items such as menu and number
...
Check dlc3
The vehicle’s ecm uses the iso 9141–2 for communication
protocol. The terminal arrangement of the dlc3 complies
with sae j1962 and matches the iso 9141–2 format.
Hint:
if the display shows unable to connect to vehicle
when you have connected the cable of the obd ii scan tool or
the h ...
Inspection procedure
1 Inspect dlc3 terminal voltage
Turn the ignition switch to on.
measure voltage between terminals 13 (tc) and 4 (cg) of
dlc3.
Ok:
voltage: 10 – 16 v
2 Check harness and connector(between cruise control ecu assy
and dlc3)
Check for open and short circuit in harness ...


