BENDIX BW2832 User Manual download pdf

Blink Codes (BC)

Description

Go To

Action

1st code 2nd code

2 any Left Steer Axle WSS

3 any Right Steer Axle WSS

4 any Left Drive Axle WSS

5 any Right Drive Axle WSS

7 any Left Steer Axle PMV

8 any Right Steer Axle PMV

9 any Left Drive Axle PMV

10 any Right Drive Axle PMV

11 7 Transmission / Hill Start Link

11 Any (except 7) J1939

12 4, 5 Retarder Relay or Hill Start Lamp

12 24, 25, or 26 Hill Start Solenoid

Action

Key Troubleshooting Steps for the Blink Codes Shown Above

Quick Checks to Make Next Steps

c Verify that the number of WSSs found in step 1 match the stored conguration

c Verify, for the wheel end identied in the description, that all WSS electrical connections and

wiring, from the wheel end through to the ECU, are properly installed and free from damage

c Check that the WSS’s face is touching the exciter ring/tone ring face

c Verify 1500-2500 ohms across sensor leads. Reading: ........ ohms*

c While turning the wheel at 0.5 revs/sec, verify a minimum of 0.25 AC volts across the sensor

leads. Reading: ........ volts* (* Out of range? – go to BW2453 WSS inspection guide.)

• Clear the Blink Codes (BCs)

• Is the same BC back?

c Yes – see the

Service Data sheet

Troubleshooting section

and/or contact the Bendix

Tech Team

c No – follow the actions

above for any other

remaining BCs

c Verify that the number of modulators found in step 1 match the stored conguration

c Verify, for the wheel end identied in the description, that all PMV electrical connections and

wiring, from the wheel end through to the ECU, are properly installed and free from damage

c Verify 9.8 to 11.0 ohms from the release to hold. (12 volt systems.) Reading: ........ ohms

c With the brakes applied**, verify the chuff test runs at power-up (vehicle cannot be moving). Listen

for the sequence: right steer; left steer; right drive; left drive; right add’l; left add’l

** Do not apply the brakes when testing the BC “20-any” trailer PMV blink code

The ECU is expecting the transmission to be congured for Hill Start, but is not receiving the correct message from the transmission.

Contact the OEM support line

Bendix Technical

Help Line:

1‑800‑AIR‑BRAKE,

(1-800-247-2725)

option 2-1,

Mon. - Fri.,

8 a.m. - 6 p.m. EST.

Step 2: What Blink Code (BC) numbers are showing as active?

We recommend that you use Bendix

ACom

Diagnostics Software (with associated RP1210 harnesses,

etc.) to look up the BCs, but the blink code switch may also be used — see the info in the right column.

Use the BC Event History feature in ACom Diagnostics to view any recurring or intermittent BCs that

are not currently active, but may need attention. (visit www.bendix.com for a free software download)

Record here the BCs found:

(For example, 13-25) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Step 3: For blink codes starting with 13 followed by a second code of 1 through 7, 9 through 17, or

19 through 24, replace the ECU (go to Step 5).

Step 4: For each BC, use the tables below and take the actions suggested for the code; typically the

steps shown will resolve the issue. See the Service Data Sheet for complete troubleshooting information,

and for any other BCs not listed. Only go to Step 5 (over) in cases where the troubleshooting suggested,

and any actions the technical help line(s) recommend, do not resolve the issue.

Blink Codes (BC)

Description

Go To

Action

1st code 2nd code

13 1-7, 9 -17, 19-24 Go to Step 5

13 8, or 18 ECU (16) or (19) - Call the Tech Team

13 25 ECU “VIN Check”

14 any Left Additional Axle WSS

15 any Right Additional Axle WSS

16 any Left Additional Axle PMV

17 any Right Additional Axle PMV

20 any Trailer PMV

21 any Steering Angle Sensor

22 any Yaw Rate Sensor

23 any Lateral Acceleration Sensor

24 6 Brake Demand

c R. Steer Axle WSS

c R. Steer Axle PMV

c L. Steer Axle WSS

c L. Steer Axle PMV

c L. Drive Axle WSS

c L. Drive Axle PMV

c R. Drive Axle WSS

c R. Drive Axle PMV

c L. Add’l Axle WSS

c L. Add’l Axle PMV

c R. Add’l Axle WSS

c R. Add’l Axle PMV

(Locations vary for PMVs

and ATC valves)

Step 1: What equipment does

the vehicle have?

Total of checked boxes:

........ Wheel Speed Sensors (WSSs),

........ Pressure Modulator Valves (PMVs).

........ Automatic Traction Control Valves (ATCs).

Bendix

EC-60

™

ABS Controller Checklist

• This checklist only takes a few minutes.

Follow all General Safety Guidelines (see back page.)

How to use the dash Blink Code

switch to retrieve active BCs:

1. Wait at least two seconds after

“ignition on.”

2. Toggle the blink code switch once.

3. After a pause of 3.5 seconds, the ECU

will begin responding with active BCs.

For example twelve blinks, pause, ve

blinks = 12-5. There is a long pause

before any further BCs.

Note:

• Depress and release the BC switch

three times to clear BCs.

• Depress and release the BC switch

two times to see inactive BCs.

c Steer

Axle

ATC

Valve

c Drive Axle ATC Valve

1 2

GENERAL SAFETY GUIDELINES 2

Summary of Contents

Page 1

Blink Codes (BC)DescriptionGo To Action1st code 2nd code2 any Left Steer Axle WSS3 any Right Steer Axle WSS4 any Left Drive Axle WSS5 any Right Drive

Page 2 - GENERAL SAFETY GUIDELINES

GENERAL SAFETY GUIDELINESWARNING! PLEASE READ AND FOLLOW THESE INSTRUCTIONS TO AVOID PERSONAL INJURY OR DEATH: When working on or around a vehicle, th

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