
3 Diagnostics, Troubleshooting and Testing
15
Meritor WABCO Maintenance Manual MM-0112 (Revised 05-13)
Figure 3.8
Figure 3.9
7. A description of the fault, the number of times the fault
occurred, the system identifier (SID), the failure mode (FMI) and
Suspect Parameter Number (SPN) are all displayed in the fault
information window. Basic repair instructions for each fault are
also provided. More detailed information about SID and FMI
troubleshooting and repair is provided in the following section
as well as the SID FMI table.
Double-clicking on the fault, or clicking on Details, will provide
troubleshooting and detailed repair instructions. TOOLBOX™
Software version 11 also provides links to the appropriate
system schematic which are also provided in this maintenance
manual.
NOTE: If you are using TOOLBOX™ Software version 11,
Internet Explorer is required to load files containing repair
information, maintenance manual and schematics.
Faults that may occur after the screen is displayed will not
appear until screen is manually updated. Use the Update
button to refresh the fault information table.
After making the necessary repairs, use the clear faults
button to clear the fault. Use the Update button to refresh the
fault information table and display the new list of faults. Some
faults may require vehicle ignition to be cycled and vehicle
speed over 4 mph (6.4 kph) to clear them.
Use the Save or Print button to save or print the fault
information data.
Blink Code Diagnostics (ABS Only)
Definitions
Blink codes can be used to obtain fault information for ABS
components, however, due to the advanced level of complexity of
ESC, RSC and HSA, it is recommended to use Meritor WABCO
TOOLBOX™ Software for detailed troubleshooting of any of these
systems.
Before using blink code diagnostics, you should be familiar with a
few basic terms. If you used previous versions of Meritor WABCO’s
blink code diagnostics, review these definitions to identify major
changes.
ABS Indicator Lamp: This lamp serves two purposes: it alerts
drivers to an ABS tractor fault and it is used during diagnostics to
display the blink code.
Blink Code: A series of blinks or flashes that describe a particular
ABS fault or condition. Codes are displayed in two-digit blink codes.
Blink Code Cycle: Two sets of flashes with each set separated by a
one-and-one-half second pause. Blink codes are defined in the blink
code identification information in this section.
Blink Code Switch: A momentary switch that activates blink code
diagnostic capabilities. Switch types and locations vary, depending
on the make and model of the vehicle.
Clear: The process of erasing faults from the ECU.
Figure 3.8
Figure 3.9
Comentarios a estos manuales