7
SPN, SID, FMI Fault Codes
86
WABCO
Maintenance Manual MM-0112 (Revised 07-18)
Figure 7.20
Figure 7.20
SPN
SID
FMI
Blink
Code
Description
W
arning
Light
System
Reaction
Cause
Action
807
19
6
7
+ 6
ABV T
railer
Control.
Shor
ted to
Ground
ABS WL
ESC/RSC
Disab
led
Contin
uity betw
een
suspect Activ
e
Br
aking V
alv
e
circuit
and g
round is
detected.
•
V
e
ri
fy 7.0-14.0 ohm betw
een ABV supply and ABV common f
o
r 12V system (26.3-49.0
ohm f
o
r 24V system).
•
Chec
k f
o
r contin
uity betw
een suspect Activ
e
Br
aking
V
a
lv
e circuit and g
round.
•
Chec
k f
o
r corroded or damaged wir
ing betw
een the ECU and ABV
.
807
19
7
7
+ 6
A
ux 1, 2, 3 or
4.
Shor
ted to
UBA
T
T
ABS WL
ESC/RSC/A
TC/
HSA Disab
led
Contin
uity betw
een
A
uxiliar
y por
t circuits
and v
oltage supply
(shor
t circuit) is
detected.
•
V
e
ri
fy if v
ehicle is equipped with Dual
T
railer Stability Control Modulator
V
a
lv
e (ABV 3/2
so Modulator v
alv
e) or Hill Star
t Aid s
w
itch and lamp
. Depending on the v
e
hicle
configur
ation, these components use A
u
x 1 through 4.
•
Chec
k f
o
r contin
uity betw
een component and v
o
ltage supply
.
•
Chec
k f
o
r corroded or damaged wir
ing betw
een the ECU and component.
807
19
8
7
+ 6
A
ux 1, 2, 3 or
4.
Open
Circuit
ABS WL
ESC/RSC
Disab
led
ECU has detected
an open circuit in
auxiliar
y por
t circuit
or circuit w
as once
lear
ned and it is no
longer a
v
ailab
le
.
•
V
e
ri
fy if v
e
hicle is equipped with Dual
T
railer Stability Control Modulator
V
a
lv
e (ABV
3/2 so Modulator v
alv
e) or Hill Star
t Aid s
w
itch* and lamp
. Depending on the
v
e
hicle configur
ation, these components use A
u
x 1 through 4.
•
HSA s
w
itch open f
a
ult detection is not activ
ated in ECU as s
w
itch could be m
u
ltiple
x
e
d.
•
Chec
k f
o
r contin
uity betw
een component and ECU
.
•
V
e
ri
fy if connectors are fully seated, chec
k f
o
r corroded or damaged wir
ing betw
een the
ECU and component.
•
If hardwired components f
o
r A
ux 1-4 are not installed on the v
ehicle b
u
t are chec
k
ed as
lear
ned in
T
OOLBO
X™ Softw
are and this f
ault is present, the oper
ator should perf
or
m
“Reset Memor
iz
e
d Components”
through
T
O
OLBO
X™ Softw
a
re procedure
.
•
If SLC ECU ma
y indicate issue with Diff loc
k
solenoid or tr
ansf
er case loc
k
solenoid.
807
19
9
7
+ 6
A
ux 1, 2, 3 or
4.
Shor
ted to
Ground
ABS WL
ESC/RSC
Disab
led
Contin
uity betw
een
auxiliar
y por
t circuit
and g
round is
detected.
•
V
e
ri
fy if v
e
hicle is equipped with Dual
T
railer Stability Control Modulator
V
a
lv
e (ABV
3/2 so Modulator v
a
lv
e) or Hill Star
t Aid s
w
itch* and lamp
. Depending on the
v
e
hicle configur
ation, these components use A
u
x 1 through 4.
•
Chec
k f
o
r contin
uity betw
een A
uxiliar
y por
t component and g
round.
•
V
e
ri
fy if connectors are fully seated, chec
k f
o
r corroded or damaged wir
ing betw
een the
ECU and component.
807
19
10
N/A
SAS & ESC
Module supply
line
. Shor
ted
to UBA
T
T
ABS WL
N/A
Contin
uity betw
een
SAS or ESC supply
line and high v
o
ltage
supply is detected.
•
V
e
ri
fy SAS
, ESC and ECU are correctly connected.
•
Disconnect ECU
, SAS and ESC module and chec
k
wir
ing betw
e
en components f
o
r
contin
u
ity to batter
y v
o
ltage with K
e
y On.
•
Chec
k f
o
r corroded or damaged wir
ing betw
een the ECU
, SAS and ESC
.
807
19
11
8 + 6
SAS & ESC
Module supply
line
. Open
Circuit
ABS WL
N/A
ECU has detected
an open circuit in
betw
een SAS or
ESC supply line and
ECU
.
•
V
e
ri
fy SAS
, ESC and ECU are correctly connected.
•
Chec
k f
o
r corroded or damaged wir
ing betw
een the ECU
, SAS and ESC
.
807
19
12
8 + 6
SAS & ESC
Module supply
line
. Shor
ted
to Ground
ABS WL
ESC/RSC
Disab
led
Contin
uity betw
een
SAS or ESC supply
line and g
round is
detected.
•
V
e
ri
fy SAS
, ESC and ECU are correctly connected.
•
Disconnect ECU
, SAS and ESC module and chec
k
wir
ing betw
e
en components f
o
r
contin
u
ity to g
round.
•
Chec
k f
o
r corroded or damaged wir
ing betw
een the ECU
, SAS and ESC
.
810
22
8
7
+ 1
Tire siz
e
broadcast
error
ABS WL
(Only at
star
t up)
ABS/ESC/RSC/
A
TC/HSA
Disab
led
Tire siz
e data has
not been receiv
e
d
from engine ECU at
star
t up
. E452
v
e
rsion only
.
•
Chec
k a
v
ailability of engine data inf
o
rmation and comm
unication betw
e
en engine ECU
and the ABS ECU
.
•
Contact OEM to v
e
ri
fy engine is correctly broadcasting tire siz
e
.
4010663
a