5-60 
 
5.4.2 One-to-one Correspondence between the Sensors & 
Valves on the Valves-test Tool Screen and the Components 
 
To use the valves-test tool to troubleshoot the sensors or valves related failures, you must be 
familiar with the one-to-one correspondence between the menu options on the valves-test 
tool screen and the actual pneumatic circuit and hardware components. 
 
5.4.2.1 Correspondence with Pneumatic Circuit Components 
 
The following figure shows the one-to-one correspondence between the sensors & valves 
on the valves-test tool screen and the actual components in the pneumatic circuit diagram.