SPN SID FMI
Blink
Code
Description
Warning
Light
System
Reaction
Cause Action
1050 1
EAP Sensor
Data Erratic or
Incorrect
ATC WL EAP Disabled
ABS system
pressure is below
set value.
• See EAP maintenance manual MM-1696.
1052 3
EAP Pressure
Sensor
Shorted to
UBATT
ATC WL EAP Disabled
Continuity between
pressure signal
circuit and voltage
supply (short circuit)
is detected.
• Check for continuity between pressure sensor signal circuit and voltage supply.
• Check connectors and pressure sensor for corrosion.
1052 5
EAP Pressure
Sensor
Shorted to
Ground
ATC WL EAP Disabled
Continuity between
pressure signal
circuit and ground
(short circuit) or
an open circuit is
detected.
• Check for continuity between pressure sensor signal circuit and voltage supply.
• Check connectors and pressure sensor for corrosion.
1055 3
EAP Pressure
Sensor
Shorted to
UBATT
ATC WL EAP Disabled
Continuity between
pressure signal
circuit and voltage
supply (short circuit)
is detected.
• Check for continuity between pressure sensor signal circuit and voltage supply.
• Check connectors and pressure sensor for corrosion.
1055 5
EAP Pressure
Sensor
Shorted to
Ground
ATC WL EAP Disabled
Continuity between
pressure signal
circuit and ground
(short circuit) or
an open circuit is
detected.
• Check for continuity between pressure sensor signal circuit and voltage supply.
• Check connectors and pressure sensor for corrosion.
1056 3
ABV Trailer
Shorted to
UBATT
ABS WL
ESC/RSC/ATC
Disabled
E8 version only.
Continuity between
suspect Active
Braking Valve circuit
and voltage supply
(short circuit) 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 ABV ground circuit and voltage supply.
• Check for corroded or damaged wiring between the ECU and ABV.
1056 4
ABV Trailer
Shorted to
Ground
ABS WL
ESC/RSC
Disabled
E8 version only.
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.
1056 5
ABV Trailer
Open Circuit
ABS WL
ESC/RSC
Disabled
E8 version only.
ECU has detected
that the suspect
Active Braking
Valve circuit is not
detected or the
circuit has been
interrupted.
• Verify 7.0-14.0 ohm between ABV supply and ABV common for 12V system (26.3-49.0
ohm for 24V system).
• Verify if connectors are fully seated, check for corroded or damaged wiring between the
ECU and ABV.
4010665a
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