SPN SID FMI
Blink
Code
Description
Warning
Light
System
Reaction
Cause Action
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.
• Repair all other active faults and road test vehicle over 4 mph.
• Check sensor adjustment, condition of tone rings, wheel end play. This fault is
generated by speed signal issues and usually is a wheel end issue.
• Once sensor issue has been corrected, may try to perform “Reset Memorized” to clear
code.
811 23 5 7 + 4
Warning Light
Relay
(E-Frame)
ABS WL if
grounded.
Off if
burned out
N/A
Output detects no
load to battery or is
permanently
grounded.
• Verify ABS WL is working correctly during self test.
• Verify wire and/or bulb is not damaged.
• Blink code activation via switch longer than 16 sec could cause. Verify blink code switch
is not permanently grounded.
1045 55 3 7 + 7
Pressure
Sensor
Shorted to
UBATT
ABS WL
ESC/RSC/ATC/
HSA Disabled
Continuity between
pressure signal
circuit and voltage
supply (short circuit)
is detected.
• Verify if connectors are fully seated, check for corroded, damaged or shorted
connectors or wiring between the ABS ECU and the pressure sensor.
• Verify there is no continuity between pressure sensor signal circuit and voltage supply.
• It could also be possible that the ECU has detected a permanent braking signal from
the pressure sensor between zero to 30 mph.
• If all wiring and connector checks pass, may indicate a pressure sensor failure.
• If DTC persists after completing previous checks and repairs, may indicate the ECU
has failed.
1045 55 5 7 + 7
Pressure
Sensor
Shorted to
Ground
ABS WL
ESC/RSC/ATC/
HSA Disabled
Continuity between
pressure signal
circuit and ground
(short circuit) or an
open circuit is
detected.
• Verify if connectors are fully seated, check for corroded, damaged or shorted
connectors or wiring between the ABS ECU and the pressure sensor.
• Verify there is no continuity between pressure sensor signal circuit and ground.
• Verify there is 8.0-16.0 volts across pins 1-2 at the pressure sensor harness connector.
• If all wiring and connector checks pass, may indicate a pressure sensor failure.
• If no voltage is found, verify if the ECU will self-test.
• If no self-test, verify power and ground to the ECU.
• If DTC persists after completing previous checks and repairs, may indicate the ECU
has failed.
1045 55 7 7 + 7
CAN BLS
(Brake light
Switch) Signal
Faulty
ABS WL RSC Disabled
Fault only for RSC
systems with ECU
E440. ECU has
detected the brake
light switch signal is
faulty.
• Refer to OEM Brake light switch troubleshooting.
• Check the BLS switch (installation, wire, connector).
• Only relevant for RSC systems without Pressure Sensor installed, with BLS over CAN
Bus and ECU E440 only.
1049 3
Pressure
Sensor
Shorted to
UBATT
ABS WL
ESC/RSC/ATC/
HSA Disabled
Permanent positive
pressure signal
detection.
• Check for continuity between pressure sensor signal circuit and voltage supply.
• Check connectors and pressure sensor for corrosion.
• It could also be possible that the ECU has detected a permanent braking signal from
the pressure sensor between zero to 30 mph.
1049 5
Pressure
Sensor Open
Circuit or
Shorted to
Ground
ABS WL
ESC/RSC/ATC/
HSA Disabled
Permanent 0 psi
pressure detection.
• Verify if connectors are fully seated, check for corroded or damaged wiring between the
ECU and component.
• Check for continuity between pressure sensor signal circuit and ground.
• The pressure sensor supply line could be also clogged or frozen up.
• Call WABCO North America Customer Care at 855-228-3203 with the part
number to ensure ECU is correct for the application.
4010664a
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