Bendix Commercial Vehicle Systems TABS-6 ADVANCED SINGLE CHANNEL - Manual (Page 13)

13
22. DIAGNOSTIC TROUBLE CODES
(DTCS)
1st
Digit
2nd
Digit
Diagnostic Code
Description
Possible Causes / Repair Information
J1587
(SID/
FMI)
J1939
(SPN/
FMI)
1 1 No diagnostic codes
• TABS‑6 Advanced system fully operational – no diagnostic codes
detected
000/00 000/00
Wheel Speed Sensors (WSS); “S-C” & “S-D”
2 1
Large Air Gap:
Sensor “S-C”
Dynamic Wheel Speed Sensor DTC - large air gap between sensor
and tone ring.
Go to Section E, Dynamic Wheel Speed Sensor DTC, on Page 31.
001/00 789/00
3 1
Large Air Gap:
Sensor “S-D”
002/00 790/00
2 2
Shorted or open wire:
Sensor “S-C” Static Wheel Speed Sensor DTC - shorted or open sensor wire.
Go to Section E, Static Wheel Speed Sensor DTC, on Page 31.
001/03
001/04
789/03
789/04
3 2
Shorted or open wire:
Sensor “S-D”
002/03
002/04
790/03
790/04
2 3
Dynamic Issue:
Sensor “S-C” Dynamic Wheel Speed Sensor DTC - incorrect wheel speed signal
detected while vehicle is in motion.
Go to Section E, Dynamic Wheel Speed Sensor DTC, on Page 31.
001/08
001/01
001/02
789/08
789/01
789/02
3 3
Dynamic Issue:
Sensor “S-D”
002/08
002/01
002/02
790/08
790/01
790/02
2 4
Tire Diameter Out of
Range: Sensor “S-C”
• Verify correct tire size and proper tire inflation.
• Verify correct number of exciter/tone ring teeth.
• Verify that the TABS-6 Advanced ECU has been programmed with
the proper tire size and tone ring settings.
001/13 789/13
3 4
Tire Diameter Out of
Range: Sensor “S-D”
002/13 790/13
Trailer Power
6 1 Over-voltage
Power Supply DTC - trailer power above 32 volts.
Go to Section D on Page 30.
251/03 3597/03
6 2 Low-voltage
Power Supply DTC - trailer power below 8 volts.
Go to Section D on Page 30.
251/04 3597/04
6 3
Excessive power line
resistance
Power Supply DTC - possible corroded or shorted trailer power
circuit. Go to Section D on Page 30.
251/13 3597/13
Pressure Sensors (Internal): “P4”, “P42”, & “P21”
7 1
Internal Pressure
Sensor Reading
Incorrect:
Control Port “P4”
• Verify the trailer’s control (service) pressure is < 130 psi.
• After repairs — or if no issues are found — clear the diagnostic
code.
• If the diagnostic code persists, contact your local Bendix
representative before replacing the Bendix ® TABS‑6 ™ Adv module.
077/12 1067/12
7 2
Internal Pressure
Sensor Reading
Incorrect:
Load Port “P42”
• See the suspension manufacturer’s specifications for load versus
pressure. Verify that the trailer’s air suspension pressure is <130
psi and is within the allowable range for the specific suspension/
airbag combination. [below 50% of airbag pressure at the unladen
weight, or above 50% of airbag pressure at GVWR for axles]
• After repairs — or if no issues are found — clear the diagnostic
code.
• If the diagnostic code persists, contact the BCVS local
representative before replacing the TABS‑6 Adv module.
069/12 1059/12
7 3
Internal Pressure
Sensor Reading
Incorrect:
Delivery Port “P21”
• Perform a Pressure Component Test using the Bendix ® ACom ®
diagnostic software (version 6.1 or higher).
• Verify the trailer’s control (service) and brake delivery pressures are
comparable and < 130 psi.
• After repairs — or if no issues are found — clear the diagnostic
code.
• If the diagnostic code persists, contact your local Bendix
representative before replacing the TABS‑6 Adv module.
059/12 1049/12