Spicer TPCS Troubleshooting Guide Bedienungsanleitung

Spicer® TPCS(Tire Pressure Control System)Troubleshooting GuideAXTS0020April 2007

7Operator Instructions• Service Code Indication - The DDM will not display service codes directly but will exhibit two dashes if service is required.

8Operator InstructionsOperator Control PanelOperator Instructions - Operator Control Panel (OCP)TPCS may be equipped with one of two driver interface

9Operator InstructionsSystem Operation• Display - The OCP uses a graphic display to indicate the selection for both terrain mode and vehicle load. Abo

10Operator InstructionsOperator Control PanelTire Pressure Control System ProgrammingSpicer's Tire Pressure Control System is fully programmable,

11Operator InstructionsOperator Control Panel Programming Sequencemphkphbar psiTire Pressure Controlmphkphbar psiTire Pressure Controlbar psiL/USELECT

12Operator InstructionsOCP Programming ChartOCP Programming ChartStep Setting Metric English IndicatorSpeed- IndicatorTerrain Arrows Loaded ArrowOCP

13DiagnosticsDiagnosticsThis section covers the equipment and procedures used to find and correct Tire Pressure Control System problems.Test Equipment

14DiagnosticsDiagnosticsPC DiagnosticsA battery charger is not an adequate source of power.Visit www.dana.com for free download of Dana DiagnosticTool

15DiagnosticsHandheld TesterA Prolink handheld tester may be used to read and clear service codes and to obtain a short description of failures. The

16DiagnosticsTroubleshooting TipsTroubleshooting TipsThis checklist outlines some general hints and guidelines that will be helpful in tracking down a

General InformationWarnings and CautionsThe descriptions and specifications contained in this service publication are current at the time of printing.

17DiagnosticsService Code SummaryGroup Code System Status Description1C! 17 No Operation Power - battery voltage out of range at the ECU3C! 18 Normal

18DiagnosticsService Code Summary10P! 41 Inflate Only Tire Leak, Front - not passing tire pressure confirm check (multiple attempts)42 Inflate Only Ti

19Service CodesGroup: 1C! (Code 17)Type: PowerCode DescriptionGroup 1C! (17) indicates a power fault and sets when the sys-tem power is outside the ac

20Service CodesGroup: 1C! (Code 17)Power (Code 17)Switch off ignition. Disconnect ECU connector.Switch on ignition.Check SWACC circuit by measuring vo

21Service CodesGroup: 3C! (Codes 18, 76, 77)Type: Speed SignalCode DescriptionGroup 3C! indicates a faulty speed sensor signal. In general, the system

22Service CodesGroup: 3C! (Codes 18, 76, 77)Speed Signal (Codes 18, 76, 77)This fault is set when ECU power has been cycled 50 times without sensing a

23Service CodesGroup: 4C! (Code 15)Type: Display Control CommunicationsCode DescriptionGroup 4C! indicates a communication problem between the Electro

24Service CodesGroup: 4C! (Code 15)Display Control Communications (Code 15)YesTurn on ignition.Is driver interface completely blank?With vehicle runni

25Service CodesGroup: 5C! (Codes 33, 34)Type: PCU SensorCode DescriptionGroup 5C! displays when the Electronic Control Unit (ECU) receives an unusuall

26Service CodesGroup: 5C! (Codes 33, 34)PCU Sensor (Codes 33, 34)With ignition off, inspect socket connections at ECU connector and at PCU sensor 3-wa

iTable of ContentsTable of ContentsGeneral InformationTire Pressure Control System 1Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . .

27Service CodesGroup: 12C! (Codes 51, 52, 53, 54, 55, 56)Type: PCU Solenoids• Front (51)• Rear (52)• Trailer (53)• Supply (54)•Deflate (55)• Control (

28Service CodesGroup: 12C! (Codes 51, 52, 53, 54, 55, 56)PCU Solenoids (Codes 51, 52, 53, 54, 55, 56)Replace ECU. Note: ECUs are not a typical cause o

29Service CodesGroup: 1P! (Codes 11, 12, 13, 16, 22)Type: No Deflate Signal Code DescriptionGroup 1P! indicates inadequate vacuum in the Pneumatic Con

30Service CodesGroup: 1P! (Codes 11, 12, 13, 16, 22)No Deflate Signal (Codes 11, 12, 13, 16, 22)Using the diagnostic tool, test vacuum in isolated PCU

31Service CodesGroup: 2P! (Code 14)Type: Deflate Trend Code DescriptionGroup 2P! is the result of a deflate that did not occur properly. The system me

32Service CodesGroup: 2P! (Code 14)Deflate Trend (Code 14)Use diagnostic tool to manually deflate the tires on each channel.All tires on each channel

33Service CodesGroup: 3P! (Code 21)Type: Vacuum Fault Code DescriptionGroup 3P! displays when the system is generating a vacuum at a time when the El

34Service CodesGroup: 3P! (Code 21)Vacuum Fault (Code 21)Replace or clean PCU. Caution: Verify clean (no oil), dry air system on vehicle. This conditi

35Service CodesGroup: 4P! (Codes 23, 24, 25)Type: Channel Between Modes Code DescriptionGroup 4P! displays if any channel inflates or deflates too slo

36Service CodesGroup: 4P! (Codes 23, 24, 25)Channel Between Modes (Codes 23, 24, 25)YesVerify Tire Pressure Control System air system capacity by chec

1General InformationTire Pressure Control SystemSpicer Tire Pressure Control System features driver control of tire air pressure through:• Simple push

37Service CodesGroup: 5P! (Codes 26, 27, 28)Type: Low Pressure Reading Air Pressure CheckThe Tire Pressure Control System is not continuously pres-sur

38Service CodesGroup: 5P! (Codes 26, 27, 28)Low Pressure Reading (Codes 26, 27, 28)Using the diagnostic tool, check faults to identify the faulty chan

39Service CodesGroup: 7P! (Codes 31, 32)Type: Low Air Supply Air Pressure CheckThe Tire Pressure Control System is not continuously pressurized; pres

40Service CodesGroup: 7P! (Codes 31, 32)Low Air Supply (Codes 31, 32)Is the governor cutout pressure set at 120-125 psig? Reset governor cutout pressu

41Service CodesGroup: 8P! (Code 35)Type: Atmospheric Air Pressure CheckThe Tire Pressure Control System is not continuously pressurized; pressure che

42Service CodesGroup: 8P! (Code 35)Atmospheric (Code 35)Using the diagnostic tool, read the atmospheric pressure. Is the reading between 8 and 20 psia

43Service CodesGroup: 9P! (Codes 36, 37, 38)Type: Inflate Trend Code DescriptionGroup 9P! displays when system pressure is dropping while in inflate m

44Service CodesGroup: 9P! (Codes 36, 37, 38)Inflate Trend (Codes 36, 37, 38)Using the diagnostic tool, check faults to identify the faulty channel:Fro

45Service CodesGroup: 10P! (Codes 41, 42, 43)Type: Tire Leak (Confirm) Air Pressure CheckThe Tire Pressure Control System is not continuously pressur

46Service CodesGroup: 10P! (Codes 41, 42, 43)Tire Leak (Confirm) (Codes 41, 42, 43)Identify affected channels:Front (41)Rear (42)Trailer (43)Tire or a

2General InformationComponent DescriptionComponent DescriptionTire Pressure Control System ComponentsL/U HWY OFF HWYEMER RUN FLATSELECTmphkphbar psiTi

47Service CodesGroup: 11P! (Codes 44, 45, 46)Type: Tire Leak (Imbalance) Air Pressure CheckThe Tire Pressure Control System is not continuously press

48Service CodesGroup: 11P! (Codes 44, 45, 46)Tire Leak (Imbalance) (Codes 44, 45, 46)Using the diagnostic tool, identify the faulty channel:Front (44)

49Service CodesGroup: 12P! (Codes 61, 62, 63, 64, 65, 66)Type: Wheel Valve Shut Off Air Pressure CheckThe Tire Pressure Control System is not continuo

50Service CodesGroup: 12P! (Codes 61, 62, 63, 64, 65, 66)Wheel Valve Shut Off (Codes 61, 62, 63, 64, 65, 66)Codes:Front (61)Rear (62)Trailer (63)Whee

51Service CodesCode: No CodeType: MiscellaneousAlthough the Tire Pressure Control System is self-diagnosing, there are some problems that may not trig

52Service CodesNo CodeCondition Operating problems that do not trigger a service code.Possible Causes* Since a service code was not set, these condit

53Service CodesCondition Operating problems that do not trigger a service code.Possible Causes* Since a service code was not set, these conditions ma

54Service CodesNo CodeThis page intentionally left blank.

55Service ProceduresFinal System CheckoutTest RequirementsThis test requires use of a diagnostic tool (PC or handheld) to control and monitor the fun

56Service ProceduresFinal System CheckoutUse Diagnostic tool to MONITOR SYSTEM.• Deflate the system by selecting Highway-Unloaded. Upon successfully a

3General InformationWheel ValveAll axles use a Wheel Valve (WV) at each end. Dual wheels are typically connected through one WV to provide tire pressu

57Service ProceduresPneumatic Control Unit - Cleaning and InspectionThe following describes the procedure for disassembly, cleaning, and inspection o

58Service ProceduresPCU - Cleaning and InspectionNote: It is necessary to position both covers on the body at the same time.18. Carefully tighten cove

59Service ProceduresSolenoid Assembly and CartridgeTypical Pneumatic Control Unit Assembly3a287c7b810d10c10b10a10e163b3cOptional Trailer Channel910e7a

60Service ProceduresSolenoid Assembly & CartridgeTypical Solenoid AssemblyTypical Cartridge121116141513PCU Cleaning& InspectionCARTRIDGE 0-RIN

61Service ProceduresService GuidelinesThe Tire Pressure Control System requires normal mainte-nance much the same as other systems on the vehicle. Fol

62Service ProceduresAir Filter ChangeAir Filter ChangeThe "Air Filter Change" illustration shows the location of the air filter in each whee

63Service ProceduresTroubleshooting Wheel End SealsPerform an air seal pressure check as follows (refer to "Wheel End Seals" illustration).

64Service ProceduresWheel End SealsWheel End SealsShop AirSupplyReservoir2" I.D. Pipe, 12" LongAir Port Plugged for TestOil Fill PlugBackup

65Service ProceduresHose and Supply Tank Selection ChartThe following hose lengths and sizes are necessary for correct TPCS operation. Any deviation

66Service ProceduresHose Selection ChartTrailer Channel Plumbing RequirementsNotes:1. Air line sizes shown with an outer diameter measurement are for

4General InformationSimplified System SchematicSimplified System SchematicWheelValveWheelValveWheelValveAir DryerCompressorWheelValveWheelValvePneumat

67Wire HarnessConnector Illustrations (All views shown looking into connector)ABCDABABABCDHarness ComponentPCU SensorPressure SwitchABABSpeed SensorCo

68Wire HarnessElectrical SchematicElectrical SchematicNote: Schematic is shown for "point- to-point" troubleshoot-ing only. Actual OEM imple

69Wire HarnessDriver Interface OptionsDriver Display Module (DDM)DisplayLoad SwitchTerrain Switch871392B1045763212B1093187GROUNDPOWERCOMM+COMM-DIMMERC

70Wire HarnessConfiguration ConnectionsConfiguration ConnectionsABDCWITH OPTIONAL TRAILER:ORORWITH OPTIONAL TRAILER:ORORCONFIG 1(BOTH STEERS NON-DRIVE

71Wire HarnessConfiguration ConnectionsWITH OPTIONAL TRAILER:ORWITH OPTIONAL TRAILER:ORORORORWITH OPTIONAL TRAILER:CONFIG 5ABDCGROUND AHARNESSCONN

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All applications must be approved by the Application Engineering Department. Specifications and/or design are subject to change without notice or obli

5Operator InstructionsOperator Instructions - Driver Display Module (DDM)TPCS may be equipped with one of two driver interface devices: a Driver Displ

6Operator InstructionsDriver Display ModuleTerrain and Load Pressure SelectionTPCS displays both the selected terrain and load, and may be configured