Fault Code Guide

Configuration Errors Troubleshooting (SID 253)
MID SID FMI Problem Test Test Result Action
136 253 01 ATC configuration
error
NOTE: ATC valve
is detected
without engine
datalink (J1939).
Check J1939 for proper wiring.
Check engine ECU for
communication. Repair as
necessary, then reconfigure ECU.
136 253 02 ABS
configuration/
wheel parameter
incorrect.
Reconfigure ECU. If fault repeats
then the wrong ECU is installed.
Replace with the correct ECU.
136 253 12 Check sum error. Check parameter setting. Check if
diagnostic device was
disconnected during active
diagnosis.
Table 16, Configuration Errors Troubleshooting (SID 253)
Miscellaneous Faults Troubleshooting (SID 254)
MID SID FMI Problem Test Test Result Action
136 254 05 ABS/ATC ECU,
no loads
No modulator valve connected.
Fault may have resulted from end
of line test at factory.
136 254 08 Excessive wheel
slip.
Check wheel speed sensor air
gaps. One wheel was much faster
than the other. May have been
caused by testing vehicle on a
dynamometer.
136 254 09 Modulator valve
actuated too long.
Modulator valve was activated too
long (more than 75% of 5
minutes). After a delay, function
will return to normal.
136 254 12 Internal error If fault persists, replace the ABS
ECU.
136 254
13
Accelerometer out
of range
If fault persists, replace the ABS
ECU.
Meritor WABCO Pneumatic Antilock Braking System
(ABS)
42.00
ABS System Troubleshooting
Business Class M2 Workshop Manual, Supplement 2, June 2002300/16