Table 3-5. Component Tests Menu Display Definitions
Monitor ignition and battery voltage signals.
Verify proper ABS valve function and location (LF = left front; RF = right front;
RR = right rear; and LR = left rear). Allow exercise of ABS valves individually
by changing chamber pressures. Default activation time values (DEFAULT)
are generally used, but custom values can be selected for special
This test can only be used if Automatic Traction Control (ATC) is installed
Verify proper ATC valve function and location (LR = left rear and RR = right
rear). Allow exercise of ATC valves individuality.
Monitor on and off status of ABS and ATC indicator lamps.
Verify proper sensor functions and location (LP = left front; RF = right front;
RR = right rear; and LR = left rear), and monitor data provided to ECU from
Using a jack, lift individual wheel ends from ground and spin tire to verify
displayed. Speeds less than 7 rpm cannot be measured and will be
displayed as <7.00. If speeds less than 10 rpm cannot be displayed, the
sensor air gap should be checked.
This test can only be used if ATC with J-1922 engine datalink is installed.
Activates engine datalink. Engine speed should be increased to 1000 rpm to
activate this function. Select this test to reduce engine speed.
Activates retarder relay function. When actived, contacts of retarder relay
are opened and retarder is desabled when property installed.
This test can only be used if an electronic retarder with J-1922 datalink
Activates retarder datalink function. When activated, retarder is disabled.
l This test can only be used if ABS or ATC switches are installed.
l If no ABS or ATC switch is installed, me status will display OFF.
Monitor on and off status of ABS and ATC switches.
4. Press the FUNC key to exit each test and return to the Component Tests Menu.