
7 SPN SID FMI Fault Codes
78
Meritor WABCO Maintenance Manual MM-0112 (Revised 05-13)
Figure 7.19
SPN SID FMI
Blink
Code
Description
Warning
Light
System
Reaction
Cause Action
807 19 7 7 + 6
Aux 1, 2, 3 or
4. Shorted to
UBATT
ABS WL
ESC/RSC/ATC/
HSA Disabled
Continuity between
Auxiliary port circuits
and voltage supply
(short circuit) is
detected.
• Verify if vehicle is equipped with Dual Trailer Stability Control Modulator Valve (ABV
3/2 solenoid + Modulator valve) or Hill Start Aid switch and lamp. Depending on the
vehicle configuration, these components use Aux 1 through 4.
• Check for continuity between component and voltage supply.
• Check for corroded or damaged wiring between the ECU and component.
807 19 8 7 + 6
Aux 1, 2, 3 or
4. Open
Circuit
ABS WL
ESC/RSC
Disabled
ECU has detected
an open circuit in
auxiliary port circuit
or circuit was once
learned and it is no
longer available.
• Verify if vehicle is equipped with Dual Trailer Stability Control Modulator Valve (ABV
3/2 solenoid + Modulator valve) or Hill Start Aid switch* and lamp. Depending on the
vehicle configuration, these components use Aux 1 through 4.
• HSA switch open fault detection is not activated in ECU as switch could be multiplexed.
• Check for continuity between component and ECU.
• Verify if connectors are fully seated, check for corroded or damaged wiring between the
ECU and component.
• If hardwired components for Aux 1-4 are not installed on the vehicle but this fault is
present, the operator should perform “Reset Memorized Components” through
TOOLBOX™ software.
807 19 9 7 + 6
Aux 1, 2, 3 or
4. Shorted to
Ground
ABS WL
ESC/RSC
Disabled
Continuity between
auxiliary port circuit
and ground is
detected.
• Verify if vehicle is equipped with Dual Trailer Stability Control Modulator Valve (ABV
3/2 solenoid + Modulator valve) or Hill Start Aid switch* and lamp. Depending on the
vehicle configuration, these components use Aux 1 through 4.
• Check for continuity between Auxiliary port component and ground.
• Verify if connectors are fully seated, check for corroded or damaged wiring between the
ECU and component.
807 19 10 N/A
SAS & ESC
Module supply
line. Shorted
to UBATT
ABS WL N/A
Continuity between
SAS or ESC supply
line and high voltage
supply is detected.
• Verify SAS, ESC and ECU are properly connected.
• Disconnect ECU, SAS and ESC module and check wiring between components for
continuity to battery voltage with Key On.
• Check for corroded or damaged wiring between 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
between SAS or
ESC supply line and
ECU.
• Verify SAS, ESC and ECU are properly connected.
• Check for corroded or damaged wiring between the ECU, SAS and ESC.
807 19 12 8 + 6
SAS & ESC
Module supply
line. Shorted
to Ground
ABS WL
ESC/RSC
Disabled
Continuity between
SAS or ESC supply
line and ground is
detected.
• Verify SAS, ESC and ECU are properly connected.
• Disconnect ECU, SAS and ESC module and check wiring between components for
continuity to ground.
• Check for corroded or damaged wiring between the ECU, SAS and ESC.
810 22 8 7 + 1
Tire size
broadcast
error
ABS WL
(Only at
start up)
ABS/ESC/RSC/
ATC/HSA
Disabled
Tire size data has
not been received
from engine ECU at
start up. E452
version only
• Check availability of engine data information and communication between Engine ECU
and the ABS ECU.
• Contact OEM to verify Engine is correctly broadcasting tire size.
• Call Meritor WABCO OnTrac at 866-OnTrac1 (668-7221) with part number to ensure
ECU is correct for the application.
810 22 14 3 + 7
ABS
Complete
Shut-off
ABS WL
Complete
Shut-Off
It was detected by
the ABS ECU, that
the number of stored
wheel speed sensor
failures is greater
than 100. An
absence of repair is
the cause of this
failure. If this failure
is detected, ABS
completely shuts-off.
• Check sensor wiring, connectors and sensor adjustment.
• Verify no damage or contamination to tone rings.
• Repair all other active faults and road test vehicle over 4 mph.
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