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424
Revision A
Fault
Codes
Telltale
Short
Description
Full
Fault
Description
Recommended
Fix/Check
Message
SA
SPN
FMI
104
521501
8
Electrical
Sys
te
m
Swath
Compressor
Vref
Err
or
Reference
voltage
err
or
.
Check
sensor
wiring
for
damage.
104
521502
3
Electrical
Sys
te
m
AHHC
Left
-out
Sensor
Low
Alarm
Sensor
voltage
below
0.35V.
Check
sensor
power
supply
.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521502
4
Electrical
Sys
te
m
AHHC
Left
-out
Sensor
High
Alarm
Sensor
voltage
above
4.5
V.
Check
for
wiring
damage.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521502
5
Electrical
Sys
te
m
AHHC
Left
-out
Sensor
Low
Err
or
Sensor
voltage
below
0.175V.
Check
sensor
power
supply
.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521502
6
Electrical
Sys
te
m
AHHC
Left
-out
Sensor
High
Err
or
Sensor
voltage
above
4.75
V.
Check
for
wiring
damage.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521502
8
Electrical
Sys
te
m
AHHC
Left
-out
Sensor
Vref
Err
or
Reference
voltage
err
or
.
Check
sensor
wiring
for
damage.
104
521503
3
Electrical
Sys
te
m
AHHC
Left
-in
Sensor
Low
Alarm
Sensor
voltage
below
0.35V.
Check
sensor
power
supply
.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521503
4
Electrical
Sys
te
m
AHHC
Left
-in
Sensor
High
Alarm
Sensor
voltage
above
4.5
V.
Check
for
wiring
damage.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521503
5
Electrical
Sys
te
m
AHHC
Left
-in
Sensor
Low
Err
or
Sensor
voltage
below
0.175V.
Check
sensor
power
supply
.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521503
6
Electrical
Sys
te
m
AHHC
Left
-in
Sensor
High
Err
or
Sensor
voltage
above
4.75
V.
Check
for
wiring
damage.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521503
8
Electrical
Sys
te
m
AHHC
Left
-in
Sensor
Vref
Err
or
Reference
voltage
err
or
.
Check
sensor
wiring
for
damage.
104
521504
3
Electrical
Sys
te
m
AHHC
Right
-in
Sensor
Low
Alarm
Sensor
voltage
below
0.35V.
Check
sensor
power
supply
.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521504
4
Electrical
Sys
te
m
AHHC
Right
-in
Sensor
High
Alarm
Sensor
voltage
above
4.5
V.
Check
for
wiring
damage.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.
104
521504
5
Electrical
Sys
te
m
AHHC
Right
-in
Sensor
Low
Err
or
Sensor
voltage
below
0.175V.
Check
sensor
power
supply
.
Adjus
t
and
re-calibrat
e
o
r
replace
sensor
if
necessary
.