7 SPN, SID, FMI Fault Codes
94
WABCO Maintenance Manual MM-0112 (Revised 07-18)
Figure 7.28
Figure 7.28
SPN SID FMI
Blink
Code
Description
Warning
Light
System
Reaction
Cause Action
630 253 12 8 + 4
EEPROM
Checksum
ABS WL
ABS Wheel
Disabled
ESC/RSC/ATC/
HSA Disabled
There is an incorrect
checksum in the
EEPROM. A
diagnostic tool may
have been
disconnected during
active diagnosis or
programming.
• Reset ECU by cycling the ignition or by using the reset option in TOOLBOX™.
• Retry the programming that was being attempted.
630 253 13 8 + 4
ABS System
Fault
ABS WL
ABS Wheel
Disabled
ESC/RSC/ATC/
HSA Disabled
The ECU
memorized system
is not in accordance
with the harness.
• Check number of sensors and modulators and correct wiring compared to ECU type.
630 253 14 8 + 6
EEPROM
ESC
Parameter
Incorrect
ABS WL ESC Disabled
The stability control
parameters set in
the ECU are not in
accordance with
what is detected or
learned on the
vehicle.
• Contact vehicle OEM to obtain correct ECU part number for vehicle.
629 254 5 8 + 4
No Loads
Detected
ABS WL
ABS Wheel
Disabled
ESC/RSC/ATC/
HSA Disabled
The ECU detects
that no modulators
are connected. This
is a common fault
during end of line
testing or
programming if only
the X1 connector is
connected.
• Check harness to ensure that modulators are connected and check fuses.
629 254 8 7 + 1 Excessive Slip ABS WL
ABS Wheel
Disabled
ESC/RSC/ATC/
HSA Disabled
One axle is detected
to be rotating much
faster than another.
This fault is common
if vehicle has been
on a dyno and
detection is not
disabled via
diagnostic
command. It is also
possible that there
are excessive
sensor air gaps on
multiple wheel ends.
• Use the “Disable ATC” diagnostic command when the vehicle is on a Dyno.
• Check for excessive ABS sensor gap on multiple wheel ends.
4012657a
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