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
Warning
Light
System
Reaction
Cause Action
807 19 6 7 + 6
ABV Trailer
Control.
Shorted to
Ground
ABS WL
ESC/RSC
Disabled
Continuity between
suspect Active
Braking Valve circuit
and ground is
detected.
• Verify 7.0-14.0 ohm between ABV supply and ABV common for 12V system (26.3-49.0
ohm for 24V system).
• Check for continuity between suspect Active Braking Valve circuit and ground.
• Check for corroded or damaged wiring between the ECU and ABV.
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 are checked as
learned in TOOLBOX™ Software and this fault is present, the operator should perform
“Reset Memorized Components” through TOOLBOX™ Software procedure.
• If SLC ECU may indicate issue with Diff lock solenoid or transfer case lock solenoid.
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 correctly 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 correctly 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 correctly 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.
4010663a
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