Specifications

CONFIDENTIAL
Bendix Commercial Vehicle Systems LLC
Elyria, OH 44036
PRODUCT SPECIFICATION - BW-283-PR
SPEC. BW-283-PR
73 SHEETS
SHEET NO. 45
1st
Digit
2nd
Digit
Fault Description Repair Information
J1587
(SID)
J1587
(FMI)
Common
10 1
Valve MOD1/2 low-side switch shorted
to ground
7 4
10 2
Valve MOD3 (AUX5) low-side switch
shorted to ground
• Check for corroded/damaged wiring or connectors
between the ECU and MOD (AUX).
• At the MOD (AUX) harness connector, verify:
• No continuity from modulator/AUX leads to ground
• After repairs or if no issues found, then clear faults.
• If faults return, replace the TABS6 Module.
9 4
10 3
ABS modulator dynamic error - all
valves
• No wheel response to ABS command between the ECU
and MOD1.
• Verify proper MOD activation with brake pressure
applied, at power-up (Chuff Test) and/or using diagnostic
tool.
• For MOD2 or MOD3, verify correct wiring (not reversed)
between 18-pin ECU and MOD harness connectors
• Possible slow brake release, check for:
- Dragging brakes
- Dry bearings
- Faulty return springs
- Parking brake system faults
- Restricted brake air lines
- Over adjusted slacks
- Out of round drums
- Damaged/ loose tone rings.
• Repair/replace MOD2/3 wiring/valve, TABS6 module or
any other brake component as required.
7 7
10 4 Excessive ABS activity
• Check for corroded/damaged wiring or connectors
between the ECU and the WSS.
• Check the air gap between the sensor and pole wheel,
pushing-in sensor(s) if needed.
• Rotate wheel and verify a min. of 0.25 VAC sensor
output @ ~ 0.5 RPS.
• Verify condition of sensor head.
• Verify condition and retention of clamping sleeve.
• Verify proper mounting of exciter ring and condition of
teeth.
• Check wheel bearings for correct adjustment.
• Verify sensor lead routing and clamping.
1 7
Electronic Control Unit (ECU)
11 1 ECU internal error
• Check for damaged or corroded connectors.
• Check for damaged wiring.
• After repairs or if no issues found, then clear faults.
• If faults return, replace the TABS6 Module.
254 12
11 2 ECU configuration error
• Verify correct ABS configuration using blink codes, PC-
diagnostics or other off-board diagnostic tools
• If needed, reset to the default ABS configuration and
power-up to initiate auto-configuration.
254 13
Table 12: Blink Code – Fault Description & Repair Information (Cont.)
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