NHTSA ID Number: 10057460
Manufacturer Communication Number: SD-13-4986
TSB/Document Date: 2015-06-01
Summary
BENDIX
ESP ES-80 CONTROLLER: INFORMATION TO ENHANCE BRAKING OF AIR-BRAKED HEAVY, MEDIUM-DUTY TRUCKS, TRACTORS & BUSES, ELECTRONIC CONTROL UNIT, WHICH ARE ONE OUT OF THREE ABS DEVICES, WHICH IS USED. *LJ
4 to Voltage &
Ground
Verify open circuit (no
continuity)
3 to Voltage &
Ground
Verify open circuit (no
continuity)
5. Follow the prompts to perform a calibration of the Yaw
Rate Sensor.
6. To test the Yaw Rate Sensor, ACom V6.7.2.5, or higher,
is required. Using Bendix ACom V6.7.2.5 or higher,
select the “Component Test” option, followed by the
“ESP Test” option. The following screen should be
displayed.
7. Follow the prompts to perform a test of the Yaw Rate
Sensor.
41
Troubleshooting Diagnostic Trouble Codes (DTCs):
Lateral Acceleration Sensor (LAS)
1st. Blink
Code
23
Location:
Lateral Acceleration
Sensor
2nd.
Blink
Code
Diagnostic Trouble
Code Description
Repair Information
1
LAS Signal Out of
Range
LAS signal incorrect. Verify the proper installation of the YRS/LAS. Verify
proper wiring between the Electronic Control Unit (ECU) and the YRS/LAS.
Check YRS/LAS output. Perform LAS calibration procedure.
2
LAS Calibration in
Progress
LAS calibration procedure is underway.
3
LAS Static
Calibration Error
LAS calibration error. Verify the proper installation of the YRS/LAS. Verify
proper wiring between the ECU and the YRS/LAS. Check YRS/LAS output.
Verify that correct YRS/LAS is being used. Verify proper ECU programming.
Perform LAS calibration procedure.
4
LAS Long Term
Calibration Error
LAS calibration error. Verify the proper installation of the YRS/LAS. Verify
proper wiring between the ECU and the YRS/LAS. Check YRS/LAS output.
Verify that correct YRS/LAS is being used. Verify proper ECU programming.
Perform LAS calibration procedure.
5
LAS Plausibility
Error (Inside ECUspecific Limits)
ECU has detected an incorrect LAS signal. Verify the proper installation of the
YRS/LAS. Verify proper wiring between the ECU and the YRS/LAS. Check
YRS/LAS output. Verify that correct YRS/LAS is being used. Verify proper
ECU programming. Perform LAS calibration procedure.
6
LAS Plausibility
Error (Outside ECU
–specific Limits)
ECU has detected an incorrect LAS signal. Verify the proper installation of the
YRS/LAS. Verify proper wiring between the ECU and the YRS/LAS. Check
YRS/LAS output. Verify that correct YRS/LAS is being used. Verify proper
ECU programming. Perform LAS calibration procedure.
7
Erratic ESP Sensor
Signal
ECU has detected an erratic signal. Verify the proper installation of the YRS/
LAS. Verify proper wiring between the ECU and the YRS/LAS. Check YRS/
LAS output. Verify that correct YRS/LAS is being used. Verify proper ECU
programming. Perform LAS calibration procedure.
(Note: When checking for voltage at YRS/LAS & SAS, the voltage will only be present momentarily at key ON.).
1. Follow the steps shown in the Yaw Rate Sensor
t r o ub l e sh o ot in g s e c t i o n fo r c a lib r at i o n an d
troubleshooting of the Lateral Acceleration Sensors
(previous page).
42
Troubleshooting Diagnostic Trouble Codes (DTCs):
Brake Demand/Load Sensors
1st. Blink
Code
24
2nd.
Blink
Code
1
2
3
4
5
6
7
8
9
Location:
Brake Demand/
Load Sensor
Diagnostic Trouble
Code Description
PS1 Open or
Shorted
PS2 Open or
Shorted
PS3 Open or
Shorted
PS1/2
Plausibility Error
PS Supply
Voltage Error
PS Not
Calibrated
PS Error
Repair Information
Check wiring between Brake Demand Sensor (primary brake circuit) and
Electronic Control Unit (ECU). Verify operation of pressure sensor.
Check wiring between Brake Demand Sensor (secondary brake circuit) and ECU.
Verify operation of pressure sensor.
Check wiring between Load Sensor and ECU. Verify operation of pressure sensor.
ECU has detected an invalid pressure sensor signal from one of the Brake
Demand Sensors.
Incorrect supply voltage to the sensors. Verify the proper voltage at sensor
connectors. Verify wiring between the ECU and the sensors. Verify the proper
output voltage from the ECU (Specifically, ensure that X4-4 PS_SPL is not
shorted to ground).
Perform static sensor calibration procedure. (NOTE: When replacing an ECU,
this DTC may occur.)
Verify operation of pressure sensor.
Incorrect supply voltage to sensors. Verify the proper voltage at sensor connectors.
Verify wiring between ECU and the sensors. Verify the proper output voltage from ECU.
PS Supply
Voltage Error
PS Not
Configured
Check for presence of pressure sensors. Make sure ESP is enabled.
3. Verify wiring between the Load Sensor and power/
ground.
Looking into wire
harness connector
Brake Demand/Load Sensor Tests
1. Verify continuity between the ECU and the pressure
sensor power and ground.
Power and Ground Input Test Measurement
B = Power Input
X4 - 4 Power
A = Ground Input
X4 - 1 Common
2. Verify wiring between the Load Sensor and the ECU.
Load Sensor
Wire Harness
Terminal
C
Measurement
X4 - 2 Brake Demand
Sensor (primary brake circuit)
Verify Continuity
Load Sensor
Harness Terminal
Measurement
C to Voltage & Ground
Verify open circuit (no continuity)
4. To perform a calibration procedure of the Brake Demand
Sensor(s), ensure that the air system is fully charged.
Apply ignition power, and wait 30 seconds. Perform
a full application of the service brake and hold for 5
seconds. Release the service brake.
5. To test the Brake Demand Sensor and/or the Load
Sensor, Bendix® ACom® Diagnostic Software V6.7.2.5
or higher is required. Using the program, select the
“Component Test” option, followed by the “ESP Test”
option. The following screen should be displayed.
X4 - 5 Brake Demand Sensor
Verify Continuity
(secondary brake circuit)
X4 - 3 Load Sensor
Verify Continuity
6. Follow the prompts to test the Brake Demand Sensor(s)
and/or the Load Sensor.
43
Troubleshooting Diagnostic Trouble Codes (DTCs):
Valves Miscellaneous
1st. Blink
Code
25
2nd.
Blink
Code
44
Location:
Valves
Diagnostic Trouble
Code Description
Repair Information
1
Differential Lock
Solenoid Open
Verify resistance between Diff solenoid and Diff common. Check for corroded
/damaged wriing or connectors between the Electronic Control Unit (ECU)
and the Diff solenoid.
2
Differential Lock
Solenoid Shorted to
Ground
Verify no continuity between the Diff Lock Solenoid and ground. Check for
corroded/damaged wiring or connectors between the ECU and Diff Lock
Solenoid.
3
Differential Lock
Solenoid Shorted to
Voltage
Verify no continuity between the Diff Lock Solenoid and voltage. Check for
corroded/damaged wiring or connectors between the ECU and Diff Lock
Solenoid.
4
I/O 3 Open Circuit
Verify resistance for I/O3 circuit. Check for corroded / damaged wiring or
connector between ECU and I/O.
5
I/O 3 shorted to
Ground
Check for a short circuit condition between ground and the I/O 3 circuit
Verify resistance between Input /Output and ground is open
6
I/O 3 Shorted to
Battery
Check for a short circuit condition between voltage and the I/O 3 circuit
Verify resistance between Input /Output and voltage is open
7
Output Configuration
Error - Diff
Mismatch between ECU configuration and Diff valve
8
Output Configuration
Error - I/O 3
Mismatch between ECU configuration and I/O3
Troubleshooting Diagnostic Trouble Codes (DTCs):
Bendix® ESP® system-related
1st. Blink
Location:
Code 2nd. J1939 Bendix® ESP®
Diagnostic Trouble Code
26 Blink system-related
Description
Code
Repair Information
1
J1939 CAN Time‑out of ESP
Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify message is being transmitted on J1939 link.
Verify the Electronic Control Unit (ECU) configuration
2
Time‑out or Invalid CAN data
–CCVS 2 ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify message is being transmitted on J1939 link.
Verify the ECU configuration
3
Time‑out or Invalid CAN data
–Electronic Engine Controller 1
ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of engine ECU on J1939 link.
Verify message is being transmitted on J1939 link. Verify data for driver's
demand torque, actual engine torque, engine speed is correct. Verify the
ECU configuration
4
Time‑out or Invalid CAN data
–EEC2 ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of engine ECU on J1939 link.
Verify message is being transmitted on J1939 link. Verify acceleration
pedal position and acceleration pedal status is correct. Verify the ECU
configuration
5
Time‑out or Invalid CAN data
– Driveline Line Retarder ESP
Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 Link.
Verify that the message is being transmitted. Verify that the data is correct
for torque / speed control. Verify the ECU configuration
6
Time‑out or Invalid CAN data –
Engine Retarder ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 Link.
Verify that the message is being transmitted. Verify that the data is correct
for torque / speed control. Verify the ECU configuration
7
Time‑out or Invalid CAN
data – Exhaust Retarder ESP
Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 Link.
Verify that the message is being transmitted. Verify that the data is correct
for torque / speed control. Verify the ECU configuration
8
Time‑out or Invalid CAN data –
PROP XBR ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of Radar on J1939 link. Verify
message is being transmitted. Verify the ECU configuration
9
Time‑out or Invalid CAN data
– Transmission Retarder ESP
Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 Link. Verify
that the message is being transmitted. Verify that the data in torque/speed
control. Verify the ECU configuration
10
Time‑out or Invalid CAN data
–Electronic Transmission
Controller 1 ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of transmission ECU on J1939
link. Verify that the message is being transmitted. Verify that the data for
shift in process, torque configuration lock , driveline engaged is correct.
Verify the ECU configuration
11
Time‑out or Invalid AUXI/O –
ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify that the message is being transmitted. Verify
that the data for reference torque is correct. Verify the ECU configuration
45
Troubleshooting Diagnostic Trouble Codes (DTCs):
J1939 Bendix® ESP® system-related (continued)
1st. Blink
Code
26
Location:
J1939 Bendix® ESP®
system-related
2nd.
Blink
Code
46
Diagnostic Trouble Code
Description
Repair Information
12
Time‑out or invalid data for
Configuration of Electronic
Engine Controller 1 ESP
Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of engine on J1939 link. Verify
that the message is being transmitted. Verify that the data for reference
torque is correct. Verify the Electronic Control Unit (ECU) configuration
13
Invalid Data Transfer Time‑out
of EC1 ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of engine on J1939 link. Verify
that the message is being transmitted. Verify that the data for reference
torque is correct. Verify the ECU configuration
14
Time‑out or invalid data for
Configuration of Driveline Line
Retarder ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 link. Verify
that the message is being transmitted. Verify that the data for reference
torque is correct. Verify the ECU configuration
15
Time‑out or invalid CAN data
–Electronic Engine Controller
ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or corroded
connectors. Verify the presence of engine ECU on J1939 link. Verify the
presence of engine ECU on J1939 link. Verify the ECU configuration
16
Time‑out or invalid CAN data
–Electrionic Transmission
Controller 2- message required
for ESP
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of transmission ECU on J1939
link. Verify that the message is being transmitted. Verify that the data for
current gear is correct. Verify the ECU configuration
17
Time‑out or invalid data
for Configuration of Engine
Retarder ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 link. Verify
message is being transmitted. Verify the ECU configuration
18
Time‑out or invalid data for
Configuration of Exhaust
Retarder ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 link. Verify
message is being transmitted. Verify the ECU configuration
19
Time‑out or invalid data for
Configuration of Transmission
Retarder ESP Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of Radar on J1939 link. Verify
the ECU configuration
20
Invalid Data Transfer Time‑out
of Driveline Line Retarder ESP
Message
Check for damaged or reversed J1939 wiring. Check for damaged or
corroded connectors. Verify the presence of a retarder on J1939 link. Verify
message is being transmitted. Verify the ECU configuration
21
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TSB/Document ID: SD-13-4986
Replacement Service Bulletin Number:
MFR Communication Date: 2015-01-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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