Special test descriptions – OTC Wireless switch/hub User Manual
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Special Test Descriptions
ABS / Air Bag 2004 User Guide
Figure 10.2: Special Tests Menu Screen
Note: The screen shown above is only an example. 
Actual screens vary by vehicle and component.
3
From the Special Tests menu screen, select the test you 
want to perform and press the ENTER key. 
4
A group selection screen, test selection screen, several 
step-by-step instruction screens, or bi-directional control 
screen may appear. Read the screens and follow all 
instructions. If necessary, use the function keys to per-
form commands or answer any questions. Use the 
ENTER key as instructed. (See “
Special Test Screen
Examples
” on
page 65
.)
5
When finished, use the EXIT key to return to previous 
screens.
Special Test Descriptions
This section includes brief descriptions of many of the 
special tests. Actual tests vary by vehicle manufac-
turer, year, make, component, etc. For complete test 
instructions and specifications, refer to the vehicle 
service manual for the vehicle being tested.
ABS Manual Control Tests
Manual Control Tests let you use the NGIS tool to man-
ually control the actuators in order to test the following: 
ABS motors, solenoids, solenoid enable relays, EMBs, 
and more.
You can confirm proper operation by comparing what 
you command with the NGIS tool to what the ECU sees 
as a response and to what the actual output is at the 
component.
ABS Motor Test
The Motor Test lets you use the NGIS tool to manually 
control the ABS pump motor. For some vehicles, the 
NGIS tool runs the test automatically; for other vehi-
cles, the tool displays instructional screens for you to 
perform the test manually.
ABS Version Test
The ABS Version test displays the name of the brake 
system and the ABS controller version number, soft-
ware ID, and sequence value.
Actuator Tests
The Actuator Tests let you use the NGIS tool to man-
ually control the actuators in order to test the following: 
AYC valves, inlet valves, outlet valves, pump motors, 
TRACS valves.
You can confirm proper operation by comparing what 
you command with the NGIS tool to what the ECU sees 
as a response and to what the actual output is at the 
component.
