Service manual

Group 59 Anti-Lock Brake System (Bendix) Troubleshooting
Data Link Instrument Cluster — Diagnostic Display
The integrated multi-function display of the Dixson Data
link instrument cluster can be used to display diagnostic
messages from the ABS. The system uses the SAE
J1708/1587 data link and is installed in most vehicles
with electronically controlled engines.
D
I
A Diagnostic Menu
G
N
The Data Link diagnostic LCD display receives informa-
tion from the ABS ECU. The messages are displayed on
four lines, each line having a specific purpose. Line one
displays the system, such as “ENGINE” or
“TRANSMISSION.” For ABS troubleshooting purposes,
line one will always be “BRAKES.” Line two displays the
faulty component, such as “ABS Snsr Axle 1 L.” Line
three displays the condition of the fault, such as “Voltage
Shorted High.” Line four indicates whether the fault is
currently ACTIVE or INACTIVE, and the count, which is
how many occurrences of that fault have been detected
since the system was last reset.
A typical diagnostic message for ABS is shown here.
D Brakes
I ABS Snsr, Axle 3 L
A Current hi or Short C
G Active, Count:1
N
Operation of the Data-Link diagnostics is covered later in
this chapter.
Refer to Volvo Trucks North America Service Manual,
PV776–381–620SM, Data Link Instrumentation, for more
information.
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