BENDIX BW2786 User's Manual

BENDIX ABS System User's Manual - BW2786.
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Troubleshooting Bendix

Troubleshooting Bendix® ESP

 ESP® Stability System

 Stability System

See the Service Data sheet for full test and repair procedures:

SD-13-4869 Bendix® EC-60™ Advanced ABS Controllers

Bendix Blink Code

DTC Description

J1587 

SID

J1939 

SPN

FMI

1st digit 2nd digit

1

1

No DTCs 

N/A

N/A

-

Wheel Speed Sensor DTCs 

2

1

SA Left WSS Excessive Air Gap 

1

789

1

3

1

SA Right WSS Excessive Air Gap 

2

790

1

4

1

DA Left WSS Excessive Air Gap 

3

791

1

5

1

DA Right WSS Excessive Air Gap 

4

792

1

14

1

AA Left WSS Excessive Air Gap 

5

793

1

15

1

AA Right WSS Excessive Air Gap 

6

794

1

2

2

SA Left WSS Output Low @ Drive-Off 

1

789

14

3

2

SA Right WSS Output Low @ Drive-Off 

2

790

14

4

2

DA Left WSS Output Low @ Drive-Off 

3

791

14

5

2

DA Right WSS Output Low @ Drive-Off 

4

792

14

14

2

AA Left WSS Output Low @ Drive-Off 

5

793

14

15

2

AA Right WSS Output Low @ Drive-Off 

6

794

14

2

3

SA Left WSS Open or Shorted 

1

789

2

3

3

SA Right WSS Open or Shorted 

2

790

2

4

3

DA Left WSS Open or Shorted 

3

791

2

5

3

DA Right WSS Open or Shorted 

4

792

2

14

3

AA Left WSS Open or Shorted 

5

793

2

15

3

AA Right WSS Open or Shorted 

6

794

2

2

4

SA Left WSS Loss of Sensor Signal 

1

789

10

3

4

SA Right WSS Loss of Sensor Signal 

2

790

10

4

4

DA Left WSS Loss of Sensor Signal 

3

791

10

5

4

DA Right WSS Loss of Sensor Signal 

4

792

10

14

4

AA Left WSS Loss of Sensor Signal 

5

793

10

15

4

AA Right WSS Loss of Sensor Signal 

6

794

10

2

5

SA Left WSS Wheel End 

1

789

7

3

5

SA Right WSS Wheel End 

2

790

7

4

5

DA Left WSS Wheel End 

3

791

7

5

5

DA Right WSS Wheel End 

4

792

7

14

5

AA Left WSS Wheel End 

5

793

7

15

5

AA Right WSS Wheel End 

6

794

7

2

6

SA Left WSS Erratic Sensor Signal 

1

789

8

3

6

SA Right WSS Erratic Sensor Signal 

2

790

8

4

6

DA Left WSS Erratic Sensor Signal 

3

791

8

5

6

DA Right WSS Erratic Sensor Signal 

4

792

8

14

6

AA Left WSS Erratic Sensor Signal 

5

793

8

15

6

AA Right WSS Erratic Sensor Signal 

6

794

8

2

7

SA Left WSS Tire Size Calibration 

1

789

13

3

7

SA Right WSS Tire Size Calibration 

2

790

13

4

7

DA Left WSS Tire Size Calibration 

3

791

13

5

7

DA Right WSS Tire Size Calibration 

4

792

13

14

7

AA Left WSS Tire Size Calibration 

5

793

13

15

7

AA Right WSS Tire Size Calibration 

6

794

13

2

8

SA Left Poor Brake Performance 

82

3534

7

3

8

SA Right Poor Brake Performance 

83

3535

7

4

8

DA Left Poor Brake Performance 

84

3536

7

5

8

DA Right Poor Brake Performance 

85

3537

7

14

8

AA Left Poor Brake Performance 

86

3538

7

15

8

AA Right Poor Brake Performance 

87

3539

7

14

10

AA Left WSS Confi guration Error 

5

793

13

15

10

AA Right WSS Confi guration Error 

6

794

13

Power Supply DTCs 

6

1

Battery Voltage Too Low 

251

627

4

6

2

Battery Voltage Too High 

251

627

3

6

3

Battery Voltage Too Low During ABS 

251

627

4

6

4

Battery Voltage Input Open Circuit 

251

627

5

6

5

Ignition Voltage Too Low 

251

627

4

6

6

Ignition Voltage Too High 

251

627

3

6

7

Ignition Voltage Too Low During ABS 

251

627

4

6

8

Input Voltage Excessive Noise (Temp.) 

251

627

2

6

9

Input Voltage Excessive Noise (Latched) 

251

627

14

Pressure Modulator Valve DTCs 

7

1

SA Left PMV REL Solenoid Shorted to Ground 

48

795

4

8

1

SA Right PMV REL Solenoid Shorted to Ground 

49

796

4

9

1

DA Left PMV REL Solenoid Shorted to Ground 

50

797

4

10

1

DA Right PMV REL Solenoid Shorted to Ground 

51

798

4

16

1

AA Left PMV REL Solenoid Shorted to Ground 

52

799

4

17

1

AA Right PMV REL Solenoid Shorted to Ground 

53

800

4

20

1

Trailer PMV REL Solenoid Shorted to Ground 

66

1056

4

7

2

SA Left PMV REL Solenoid Shorted to Voltage 

48

795

3

8

2

SA Right PMV REL Solenoid Shorted to Voltage 

49

796

3

9

2

DA Left PMV REL Solenoid Shorted to Voltage 

50

797

3

Bendix Blink Code

DTC Description

J1587 

SID

J1939 

SPN

FMI

1st digit 2nd digit

10

2

DA Right PMV REL Solenoid Shorted to Voltage 

51

798

3

16

2

AA Left PMV REL Solenoid Shorted to Voltage 

52

799

3

17

2

AA Right PMV REL Solenoid Shorted to Voltage 

53

800

3

20

2

Trailer PMV REL Solenoid Shorted to Voltage 

66

1056

3

7

3

SA Left PMV REL Solenoid Open Circuit 

48

795

5

8

3

SA Right PMV REL Solenoid Open Circuit 

49

796

5

9

3

DA Left PMV REL Solenoid Open Circuit 

50

797

5

10

3

DA Right PMV REL Solenoid Open Circuit 

51

798

5

16

3

AA Left PMV REL Solenoid Open Circuit 

52

799

5

17

3

AA Right PMV REL Solenoid Open Circuit 

53

800

5

20

3

Trailer PMV REL Solenoid Open Circuit 

66

1056

5

7

4

SA Left PMV HLD Solenoid Shorted to Ground 

42

795

4

8

4

SA Right PMV HLD Solenoid Shorted to Ground 

43

796

4

9

4

DA Left PMV HLD Solenoid Shorted to Ground 

44

797

4

10

4

DA Right PMV HLD Solenoid Shorted to Ground 

45

798

4

16

4

AA Left PMV HLD Solenoid Shorted to Ground 

46

799

4

17

4

AA Right PMV HLD Solenoid Shorted to Ground 

47

800

4

20

4

Trailer PMV HLD Solenoid Shorted to Ground 

66

1056

4

7

5

SA Left PMV HLD Solenoid Shorted to Voltage 

42

795

3

8

5

SA Right PMV HLD Solenoid Shorted to Voltage 

43

796

3

9

5

DA Left PMV HLD Solenoid Shorted to Voltage 

44

797

3

10

5

DA Right PMV HLD Solenoid Shorted to Voltage 

45

798

3

16

5

AA Left PMV HLD Solenoid Shorted to Voltage 

46

799

3

17

5

AA Right PMV HLD Solenoid Shorted to Voltage 

47

800

3

20

5

Trailer PMV HLD Solenoid Shorted to Voltage 

66

1056

3

7

6

SA Left PMV HLD Solenoid Open Circuit 

42

795

5

8

6

SA Right PMV HLD Solenoid Open Circuit 

43

796

5

9

6

DA Left PMV HLD Solenoid Open Circuit 

44

797

5

10

6

DA Right PMV HLD Solenoid Open Circuit 

45

798

5

16

6

AA Left PMV HLD Solenoid Open Circuit 

46

799

5

17

6

AA Right PMV HLD Solenoid Open Circuit 

47

800

5

20

6

Trailer PMV HLD Solenoid Open Circuit 

66

1056

5

7

7

SA Left PMV CMN Open Circuit 

7

795

5

8

7

SA Right PMV CMN Open Circuit 

8

796

5

9

7

DA Left PMV CMN Open Circuit 

9

797

5

10

7

DA Right PMV CMN Open Circuit 

10

798

5

16

7

AA Left PMV CMN Open Circuit 

11

799

5

17

7

AA Right PMV CMN Open Circuit 

12

800

5

20

7

Trailer PMV CMN Open Circuit 

66

1056

5

7

8

SA Left PMV Confi guration Error 

7

795

13

8

8

SA Right PMV Confi guration Error 

8

796

13

9

8

DA Left PMV Confi guration Error 

9

797

13

10

8

DA Right PMV Confi guration Error 

10

798

13

16

8

AA Left PMV Confi guration Error 

11

799

13

17

8

AA Right PMV Confi guration Error 

12

800

13

20

8

Trailer PMV Chuff Test/Confi guration Error 

66

1056

7

J1939 DTCs 

11

1

J1939 Serial Link 

231

639

12

11

2

J1939 Retarder 

231

639

14

11

3

J1939 Engine Communications 

231

639

2

11

4

J1939 Invalid Data (Engine/Retarder) 

231

639

2

11

5

J1939 Supply Pressure 

231

639

2

11

6

J1939 ESP Messages Invalid Data 

231

639

2

Miscellaneous DTCs 

11

7

Time-Out or Invalid Data on ETC7/VP15 (for 

HSA-Function)

231

639

2

11

12

J1939 HSA Switch Error or Unavailable

231

639

2

12

1

Stop Lamp Switch Not Detected 

55

1045

7

12

2

Stop Lamp Switch Always On 

231

639

2

12

3

Dynamometer Test Mode 

17

576

14

12

4

Retarder Relay or HSA Lamp Open Circuit or 

Shorted to Ground 

13

801

2

12

5

Retarder Relay Circuit or HSA Lamp Shorted to 

Voltage 

13

801

3

12

6

ABS Dash Indicator Circuit DTC 

23

811

2

12

7

PMV Common Shorted to Ground 

93

802

4

12

8

PMV Common Shorted to Voltage 

93

802

3

12

9

ATC Disabled to Prevent Brake Fade 

17

614

14

12

10

Tire Size Out of Range (Front to Rear) 

79

1069

13

12

11

Wheel Speed Sensors Reversed on an Axle 

22

810

7

12

12

Diff Lock Solenoid Shorted to Ground or Open 

Circuit 

102

564

5

12

13

Diff Lock Solenoid Shorted to Voltage 

102

564

3

12

14

Sensor CAN Supply Voltage Error  

103

1808

2

12

15-21 Reserved N/A

N/A

N/A 

12

22

ESP Sensor Voltage Out of Range 

103

1808

2

12

23

I/O2 or I/O3 Shorted High 

154

614

3

12

24

HSA Solenoid Shorted to Voltage

94

2622

3

12

25

HSA Solenoid Open or Shorted to Ground

94

2622

5

ECU DTCs 

13

1

ECU (02) 

254

629

12

13

2

ECU (10) 

254

629

12

Bendix Blink Code

DTC Description

J1587 

SID

J1939 

SPN

FMI

1st digit 2nd digit

13

3

ECU (11) 

254

629

12

13

4

ECU (12) 

254

629

2

13

5

ECU (13) 

254

629

2

13

6

ECU (14) 

254

629

12

13

7

ECU (15) 

254

629

2

13

8

ECU (16) 

254

630

13

13

9

ECU (17) 

254

630

13

13

10

ECU (18) 

254

630

12

13

11

ECU (1A) 

254

802

12

13

12

ECU (1B) 

254

802

12

13

13

ECU (80) 

254

629

12

13

14

ECU (04) 

254

629

12

13

15

ECU (06) 

254

629

12

13

16

ECU (0E) 

254

629

12

13

17

ECU (0D) 

254

629

2

13

18

ECU (19) 

254

629

2

13

19

ECU (1C) 

253

630

12

13

20

ECU (27) 

253

630

12

13

21

ECU (1D) 

253

630

13

13

22

ECU (1E) 

253

630

13

13

23

ECU (28) 

253

630

13

13

24

ECU (37) 

254

629

12

13

25

VIN / Chassis Mis-Match 

254

629

12

TCV DTCs 

18

1

TCV DA Solenoid Shorted to Ground 

18

806

4

18

2

TCV DA Solenoid Shorted to Voltage 

18

806

3

18

3

TCV DA Solenoid Open Circuit 

18

806

5

18

4

TCV DA Confi guration Error 

18

806

13

19

1

TCV SA Solenoid Shorted to Ground 

19

807

4

19

2

TCV SA Solenoid Shorted to Voltage 

19

807

3

19

3

TCV SA Solenoid Open Circuit 

19

807

5

19

4

TCV SA Confi guration Error 

19

807

13

Steering Angle Sensor DTCs 

21

1

SAS Not Calibrated 

89

1807

13

21

2

SAS Calibration in Progress 

89

1807

13

21

3

SAS Static Signal  

89

1807

2

21

4

SAS Signal Out of Range 

89

1807

2

21

5

SAS Signal Reversed 

89

1807

2

21

6

SAS Invalid Signal 

89

1807

12

21

7

SAS Gradient Error 

89

1807

2

21

8

SAS CAN Timeout 

89

1807

9

21

9

SAS Long Term Calibration Error 

89

1807

2

21

10

SAS Plausibility Check (Ref Yaw Rate) 

89

1807

2

Yaw Rate Sensor DTCs 

22

1

YRS Signal Out of Range 

103

1808

2

22

2

YRS Sensor Reversed Signal 

103

1808

2

22

3

YRS Invalid Signal 

103

1808

2

22

4

YRS Gradient Error 

103

1808

2

22

5

YRS CAN Timeout 

103

1808

9

22

6

YRS Static BITE Error 

103

1808

2

22

7

YRS Dynamic BITE Error 

103

1808

2

22

8

YRS Fast Calibration Error 

103

1808

2

22

9

YRS Static Calibration Error 

103

1808

2

22

10

YRS Normal Calibration Error 

103

1808

2

22

11

YRS Sensitivity Calibration Error 

103

1808

2

22

12

YRS Plausibility Check (Ref Yaw Rate) 

103

1808

2

22

13

YRS Plausibility Error (Inside Model Based 

Limits) 

103

1808

2

22

14

YRS Plausibility Error (Outside Model Based 

Limits) 

103

1808

2

22

15

YRS Sign Check Not Completed 

89

1808

13

22

16

YRS Vibration Detected 

103

1808

2

Lateral Acceleration Sensor DTCs 

23

1

LAS Signal Out of Range 

99

1809

2

23

2

LAS Calibration in Progress 

99

1809

13

23

3

LAS Static Calibration Error 

99

1809

2

23

4

LAS Long Term Calibration Error 

99

1809

2

23

5

LAS Plausibility Error (Inside Model Based Limits) 

99

1809

2

23

6

LAS Plausibility Error (Outside Model Based 

Limits) 

99

1809

2

23

7

Erratic ESP Sensor Signal 

99

1809

14

Pressure Sensor DTCs 

24

1

PS1 Open or Shorted 

77

1067

2

24

2

PS2 Open or Shorted 

78

1068

2

24

3

PS3 Open or Shorted 

69

1059

2

24

4

PS1/PS2 Plausibility Error 

77

1067

11

24

5

PS Supply Voltage Error 

77

1067

2

24

6

PS Not Calibrated 

77

1067

7

Bendix Blink Code to Description 

and Other Electronic Messaging Standards

(J1587 SID, J1939 SPN & FMI)

DIAGNOSTIC MODES
In order to communicate with the ECU, the controller has several modes that the technician can 
select, allowing information to be retrieved, or other ECU functions to be accessed.
To enter the various diagnostic modes:

No. of Times 

to Press the 

Blink Code 

Switch

System Mode Entered

1

Active diagnostic trouble code retrieval

2

Inactive diagnostic trouble code retrieval

3

Clear active diagnostic trouble codes

4

System confi guration check

5

Dynamometer Test Mode

7*

Reconfi gure ECU (See SD sheet for details.)

To enter the Reconfi guration Mode, the switch must be held in 
before the application of ignition power. Once the power is supplied, 
the switch is released and then pressed seven times.

Active Diagnostic Trouble Code Mode 
For troubleshooting, typically the Active and Inactive Diagnostic Trouble Retrieval Modes are 
used.  The technician presses the blink code switch once and the ABS indicator lamp fl ashes 
a fi rst group of two codes, and if there are more trouble codes recorded, this is followed by a 
second set of codes, etc.  (See this page for a brief directory of these codes.)  

Clearing Diagnostic Trouble Codes
To clear active diagnostic trouble codes (as problems are fi xed), simply clear (or “self-heal”) by 
removing and re-applying ignition power. The only exception is for wheel speed sensor trouble 
codes, which clear when power is removed, re-applied, and the ECU detects valid wheel speed 
from all wheel speed sensors.  Alternately, codes may be cleared by pressing the diagnostic 
blink code switch 3 times (to enter the Clear Active Diagnostic Trouble Code Mode) or by using 
a hand-held or PC-based diagnostic tool. Hand-held or PC-based diagnostic tools are able to 
clear wheel speed sensor trouble codes without the vehicle being driven.

Inactive Diagnostic Trouble Code Mode
The ECU stores past trouble codes and comments (such as confi guration changes) in its memory. 
This record is commonly referred to as “event history.”  When an active trouble code is cleared, 
the ECU stores it in the event history memory as an inactive trouble code. 
Using blink codes, the technician may review all inactive trouble codes stored on the ECU. The 
ABS indicator lamp will display inactive diagnostic blink codes when the diagnostic blink code 
switch is depressed and released two times.  
Inactive trouble codes, and event history, may be retrieved and cleared by using a hand-held or 
PC-based diagnostic tool, such as the Bendix® ACom™ Diagnostics software.

Clearing Active Diagnostic Trouble Codes
The ECU will clear active trouble codes when the diagnostic blink code switch is depressed 
and released three times.

Visit www.bendix.com or www.foundationbrakes.com for Service Data 

Sheets and other literature such as the following:

BW1114   Quick Reference Catalog
BW1231  Tractor & Truck Air Brake System Troubleshooting Wallchart
BW1396  Tractor & Truck Air Brake System Troubleshooting
BW1555   Brake Balance Procedure
BW2780  Troubleshooting Bendix® ESP® Stability System Wallchart version of this piece  
BW5057   Air Brake Handbook
SD-13-4869   Service Data Sheet for EC-60™ ABS/ATC Advanced Controllers

 EXAMPLE OF BLINK CODE MESSAGE

0.765639s