Spicer TPCS Troubleshooting Guide: Older Systems (ECU Manuel d'utilisateur

Troubleshooting GuideSpicer® TPCS(Tire Pressure Control System)Older Systems (ECU’s w/Dual Connectors, p/n 673782 & 673277) AXTS0010October 2007

10Operator InstructionsDigital DisplayThe display shows either tire pressure or fault codes for the channel indicated by the illuminated inner tire ri

11Operator InstructionsLoaded IndicatorThe small arrow pointing to the drive wheels indicates whether you have selected loaded or unloaded pres sures.

12Configuration IndicatorsThe tractor / trailer outline show(s) whether the vehicle is configured with a two channel (tractor or straight truck) or thre

13Operator InstructionsTire Pressure Control System ProgrammingSpicer’s Tire Pressure Control System features on location programming through the Oper

14Operator Instructions

15Operator Instructions

16General Service GuidelinesService GuidelinesThe Tire Pressure Control System requires normal mainte nance much the same as other systems on the vehi

17General Service GuidelinesAir Filter Change Figure 5 shows the location of the air filter in each wheel valve. This filter must be replaced whenever t

18DiagnosticsThis section covers the equipment and procedures used to find and correct Tire Pressure Control System problems.Test EquipmentTire Pressur

19DiagnosticsHand-Held TestersAn OTC or MPSI hand-held tester may be used to read and clear fault codes and to obtain a short description of failures.

2The description and specifications contained in this service publication are current at the time of printing.Spicer® reserves the right to discontinue

20TroubleshootingTroubleshooting TipsThis checklist outlines some general hints and guide lines that will be helpful in tracking down and correcting

21TroubleshootingFault CodesWhen an exclamation point(!) follows the digital display, the display is reporting a system fault. The following chart pro

22TroubleshootingCode DescriptionCode 1C! indicates a power fault and sets when the system power is outside the acceptable range of 9 to 32 Volts. The

23Troubleshooting TreeCode: 1C!Type: Power

24TroubleshootingCode DescriptionCode 3C! indicates a faulty speed sensor signal which can be set by one of two conditions:• A wiring or sensor conne

25Troubleshooting TreeCode: 3C!Type: Speed Sensor

26TroubleshootingCode DescriptionCode 4C! indicates a communication problem between the Electronic Control Unit (ECU) and the Operator Control Panel (

27Troubleshooting TreeCode: 4C!Type: Control Communications

28TroubleshootingCode DescriptionCode 5C! displays when the Electronic Control Unit (ECU) receives an unusually high or low reading from the pressure

29Troubleshooting TreeCode: 5C!Type: Pressure Transducer

3Section 1: IntroductionTire Pressure Control System ...

30TroubleshootingCode DescriptionCodes 7C! through 12C! indicate an electrical fault in the Pressure Control Unit (PCU). System operation is disabled

31Each of the codes 7C! through 12C! matches one specific solenoid. When the troubleshooting instructions refer to connector test points, use Chart A t

32TroubleshootingCode DescriptionCode 13C! indicates a relay problem. Likely causes are either a blown VBATT fuse, the relay itself, or problems wit

33Troubleshooting TreeCode: 13C!Type: Relay

34TroubleshootingCode DescriptionCode 1P! indicates inadequate vacuum in the Pneu matic Control Unit (PCU) prior to channel selection or failure to su

35Troubleshooting TreeCode: 1P!Type: No Deate Signal

36TroubleshootingCode DescriptionCode 3P! displays when the system is generating a vacuum at a time when the Electronic Control Unit (ECU) is not requ

37Troubleshooting TreeCode: 3P!Type: Vacuum Fault

38TroubleshootingCode DescriptionCode 4P! displays if a channel inflates or deflates too slowly. The maximum allotted time for each channel is 40 minute

39Troubleshooting TreeCode: 4P!Type: Channel Between Modes

4Tire Pressure Control SystemSpicer’s Tire Pressure Control System features dash board control of tire air pressure through:• Simple push button oper

40TroubleshootingAir Pressure CheckNote that the Tire Pressure Control System is not continuously pressurized; pressure checks occur on a periodic bas

41Troubleshooting TreeCode: 5P!Type: Low Pressure Reading

42TroubleshootingAir Pressure CheckNote that the Tire Pressure Control System is not continuously pressurized; pressure checks occur on a periodic bas

43Troubleshooting TreeCode: 7P!Type: Inadequate Air Pressure

44TroubleshootingAir Pressure CheckNote that the Tire Pressure Control System is not continuously pressurized; pressure checks occur on a periodic bas

45Troubleshooting TreeCode: 8P!Type: Atmospheric

46TroubleshootingCode DescriptionCode 9P! displays when system pressure is dropping while in inflate mode. The air leak that is causing 9P! is large e

47Troubleshooting TreeCode: 9P!Type: Trend Fault

48TroubleshootingAir Pressure CheckNote that the Tire Pressure Control System is not continuously pressurized; pressure checks occur on a periodic bas

49Troubleshooting TreeCode: 10P!Type: Tire Leak (Conrm)

5Component DescriptionThe following describes how each component of the Tire Pressure Control System functions. Figure 1 shows the approximate loca

50TroubleshootingAir Pressure CheckNote that the Tire Pressure Control System is not continuously pressurized; pressure checks occur on a periodic bas

51Troubleshooting TreeCode: 11P!Type: Tire Leak (Imbalance)

52TroubleshootingCode: No CodeType: MiscellaneousAlthough the Tire Pressure Control System is self-diagnosing, there are some operating problems tha

53TroubleshootingCode: No CodeType: Miscellaneous(Page 2 of 2)

54Appendix A

55Appendix A

AXTS-0010 Printed in U.S.A.Copyright Dana Limited, 2012. All rights reserved. Dana Limited.Dana Aftermarket GroupPO Box 321Toledo, Ohio 43697-0321Wa

6Air Lines The Tire Pressure Control System uses a dedicated pneumatic system plumbed from the vehicle’s existing wet tank.WiringAll electric cables

7System OperationA vehicle equipped with the Tire Pressure Control System will seem to operate the same as a vehicle without the Tire Pressure Control

8Operation

9Operator ControlsThe dash-mounted Operator Control Panel is the sole interface for display of operator information and for key entry of system instr