Scan Tool Testing and Procedures

DATA LIST / ACTIVE TEST
1. DATA LIST

HINT:
Using the intelligent tester to read the DATA LIST allow the values or states of switches, sensor, 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.

NOTICE:
In the table, 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.

(a) Turn the engine switch off.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the engine switch on (IG) and the tester ON.
(d) Following the display on the intelligent tester, read the "DATA LIST".

Tire pressure warning ECU (Part 1):

Tire pressure warning ECU (Part 2):

Tire pressure warning ECU (Part 3):

HINT:
*1: Displayed only when the ID No. is not registered.
*2: It may take about 2 or 3 minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24. C2121

2. ACTIVE TEST

HINT:
Performing the ACTIVE TEST using the intelligent tester allows the relay, actuator, etc. to operate without parts removal. Performing the ACTIVE TEST as the first step of troubleshooting is one way to save time.
It is possible to display the DATA LIST during the ACTIVE TEST.

(a) Turn the engine switch off.
(b) Connect the intelligent tester to the DLC3.
(c) Turn the engine switch on (IG) and the tester on.
(d) According to the display on the tester, perform the "ACTIVE TEST".

Combination meter: