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
W
arning
Light
System
Reaction
Cause
Action
630
253
12
8 + 4
EEPR
O
M
Chec
ksum
ABS WL
ABS Wheel
Disab
led
ESC/RSC/A
TC/
HSA Disab
led
There is an incorrect
chec
ksum in the
EEPR
O
M.
A
diagnostic tool ma
y
ha
v
e
been
disconnected dur
ing
activ
e diagnosis or
prog
ramming.
•
Reset ECU b
y
cycling the ignition or b
y
using the reset option in
T
O
OLBO
X™.
•
Retr
y the prog
ra
mming that w
a
s being attempted.
630
253
13
8 + 4
ABS System
F
ault
ABS WL
ABS Wheel
Disab
led
ESC/RSC/A
TC/
HSA Disab
led
The ECU
memor
iz
ed system
is not in accordance
with the har
ness
.
•
Chec
k n
u
mber of sensors and modulators and correct wir
ing compared to ECU type
.
630
253
14
8 + 6
EEPR
O
M
ESC
P
a
rameter
Incorrect
ABS WL
ESC
Disab
led
The stability control
par
ameters set in
the ECU are not in
accordance with
what is detected or
lear
ned on the
v
ehicle
.
•
Contact v
ehicle OEM to obtain correct ECU par
t n
u
mber f
o
r v
ehicle
.
629
254
5
8
+ 4
No Loads
Detected
ABS WL
ABS Wheel
Disab
led
ESC/RSC/A
TC/
HSA Disab
led
The ECU detects
that no modulators
are connected.
This
is a common f
ault
dur
ing end of line
testing or
prog
ramming if only
the X1 connector is
connected.
•
Chec
k har
ness to ensure that modulators are connected and chec
k fuses
.
629
254
8
7
+ 1
Excessiv
e Slip
ABS
WL
ABS Wheel
Disab
led
ESC/RSC/A
TC/
HSA Disab
led
One axle is detected
to be rotating m
uch
faster than another
.
This f
ault is common
if v
ehicle has been
on a dyno and
detection is not
disab
led via
diagnostic
command.
It is also
possib
le that there
are e
xcessiv
e
sensor air gaps on
m
ultiple wheel ends
.
•
Use the
“Disab
le A
T
C”
diagnostic command when the v
ehicle is on a Dyno
.
•
Chec
k f
o
r e
xcessiv
e ABS sensor gap on m
u
ltiple wheel ends
.
4012657
a