Volvo MID 130, MID 223 DTC Service Manual

ServiceManual

MID130/223DTCGuide

Trucks

Group43

PV776-88946390

Foreword

Thedescriptionsandserviceprocedurescontainedinthismanualarebasedondesignsand
methodsstudiescarriedoutuptoOctober2009.

Theproductsareundercontinuousdevelopment.Vehiclesandcomponentsproducedafterthe
abovedatemaythereforehavedifferentspecicationsandrepairmethods.Whenthisisbelieved
tohaveasignicantbearingonthismanual,supplementaryservicebulletinswillbeissuedtocover
thechanges.

Theneweditionofthismanualwillupdatethechanges.

Inserviceprocedureswherethetitleincorporatesanoperationnumber,thisisareferencetoan
V.S.T.(VolvoStandardTimes).

Serviceprocedureswhichdonotincludeanoperationnumberinthetitleareforgeneralinformation
andnoreferenceismadetoanV .S.T.

Eachsectionofthismanualcontainsspecicsafetyinformationandwarningswhichmustbe
reviewedbeforeperforminganyprocedure.Ifaprintedcopyofaprocedureismade,besureto
alsomakeaprintedcopyofthesafetyinformationandwarningsthatrelatetothatprocedure.The
followinglevelsofobservations,cautionsandwarningsareusedinthisServiceDocumentation:

Note:Indicatesaprocedure,practice,orconditionthatmustbefollowedinordertohavethe
vehicleorcomponentfunctioninthemannerintended.

Caution:Indicatesanunsafepracticewheredamagetotheproductcouldoccur.

Warning:Indicatesanunsafepracticewherepersonalinjuryorseveredamagetotheproduct

couldoccur.

Danger:Indicatesanunsafepracticewhereseriouspersonalinjuryordeathcouldoccur.

VolvoTrucksNorthAmerica,adivisionofV olvoGroupNorthAmerica,Inc.

Greensboro,NCUSA

Ordernumber:PV776-88946390

Repl:PV776-20184637

©2009VolvoGroupNorthAmerica,Inc.,Greensboro,NCUSA

Allrightsreserved.Nopartofthispublicationmaybereproduced,storedinretrievalsystem,
ortransmittedinanyformsbyanymeans,electronic,mechanical,photocopying,recordingor
otherwise,withoutthepriorwrittenpermissionofVolvoTrucksNorthAmerica,adivisionofVolvo
GroupNorthAmerica,Inc.

USA38721

Contents

DesignandFunction....................................................................................................................3

MID130TransmissionControlUnit...............................................................................................3

MID223GearSelectorControlUnit..............................................................................................6

Troubleshooting..........................................................................................................................7

MID130TransmissionControlUnit,FaultCodes............................................................................7

MID223GearSelectorControlUnit,FaultCodes...........................................................................54

1

2

Group43

DesignandFunction

MID130TransmissionControlUnit

Themanufacturerdiagnostictoolisthepreferredtoolfor
performingdiagnosticwork.Contactyourlocaldealerfor
moreinformationorvisit“www.premiumtechtool.com”.

SystemOverview

MID130TransmissionControlUnit

TheI-Shifttransmissionisatechnologicallyadvanced
automatedmechanicaltransmission,designedspecically
toworkinconjunctionwithVolvo’snewfamilyofheavy-duty
dieselengines.Inordertoworkasatotalpackage,theI-Shiftis
programmedwitheachengines’efciencymapandisoffered
withdifferentsoftwareoptionstofullleachoperatorsneeds.

AllvariantsoftheVolvoI-Shifthave12forwardspeedsandup
to4reversespeedsdependingonprogramming.Itisasingle
countershafttransmissionbuiltupwithasplittersection,amain
sectionwiththreeforwardandonereversegear,andarange
gearsection.Itisanautomatedmechanicaltransmissionand
usessynchronizersinitssplitterandrangegearsbutnotinthe
mainsection.Themainsectionutilizesacountershaftbraketo
meshgearsandequalizeshaftspeedsasneeded.Asingle

Transmission

Model

Operation

Forward

Speeds

Engines

Available

OverallRatio

TopRatioDirect1.00:1

Weightlbs

(kg)

AT2512CATO2512C

TwoPedalTwoPedalTwoPedalTwoPedalTwoPedalTwoPedal

121212121212

D11/D13D11/D13D11/D13D11/D13

14.94:115.04:114.94:115.04:114.94:115.04:1

Overdrive

0.78:1

597(275)597(275)597(275)597(275)610(281)610(281)

discautomatedclutchsystemisutilized.TheI-Shiftisa"two
pedal"transmissionanddoesnotrequireaclutchpedal.

TheI-Shiftusescompressedairandelectricalsolenoidsto
performshiftfunctions,clutchcontrolandcountershaftbrake
functions.Allofthesefunctionsaretimedandcontrolledby
theTransmissionControlModule(TCM).Adedicatedairtank
isneededonthevehicletosupplyairforthesecomponents.
Theairisplumbedtothetransmissionviaasupplylineandis
distributedtotheothercomponentsinternally.Theaircontrol
solenoidsarehousedintheTransmissionControlHousingand
intheClutchControlValveAssembly.

AllVolvoTruckmodelswillbeavailablewiththistransmission
includingtheVT,VNSeries&VHDvocationaltrucks.Four
I-Shiftmodelswillbeofferedtosupportthepowerrangesof
theenginesaswellasofferingdifferentgeararrangements:

AT2612D

Direct1.00:1

ATO2612DAT2812CATO3112C

ATO3112D

D16D16

Overdrive

0.78:1

Direct1.00:1

Overdrive

0.78:1

3

Group43

TransmissionIdentication

MID130TransmissionControlUnit

Eachtransmissionhastwoidenticationtags.Oneisfoundon
thetopoftheclutchhousingandtheotherisfoundontheback

MakeVolvo

TransmissionModel

DescriptionA–Automatic

AT2512C,ATO2512C,A T2612D,ATO2612D,AT2812C,ATO31 12CandATO3112D

T–Transmission
O–Overdrive
25–T orqueCapacity2500Nm(1850lb-ft)
26–T orqueCapacity2600Nm(2312lb-ft)
28–T orqueCapacity2800Nm(2050lb-ft)
31–T orqueCapacity3100Nm(2300lb-ft)
12–Numberofforwardgears
CorD–DesignLevel

Sensors

ClutchPositionSensor

TheClutchPositionSensorislocatedonthesideoftheclutch
cylinderassembly(insidebellhousing).

oftherangehousing.Thetransmissionversioncanbereadily
identiedbythefollowingnomenclaturetable.

MainShaftSpeedSensor(s)

Thespeedsensorsarelocatedonthecontrolhousingand
measurethespeedofthemainshaftandthespeedofthe
countershaft.

Themainshaftspeedsensorisaelectronicsensorwithahall
element.Usingahallelementmakesitpossibletomeasure
therotationspeedandrotationdirectionoftheshaft.

Thecountershaftspeedsensorisaninductivesensor.
Knowingthespeedofthecountershaftmakesitpossibleto
calculatetheprecisespeedofeverygearinthetransmission.

Thespeedsensor(s)arelocatedinthetransmissiononthe
lowerportionofthecontrolhousing.

OutputShaftSpeedSensor

TheOutputShaftSpeedSensorislocatedonthesideofthe
reartransmissionhousing.

RangeCylinderPositionSensor

Therearefourpositionsensorsinthetransmissioncontrol
housing.Thesesensorsmeasurethepositionofthespecic
aircylinderwithinthecontrolhousing.Thesensorsare
inductiveandtheinductivecharacteristicschangedepending
onthepositionofthemetalpinthatfollowsthemovementsof
theaircylinders.

TheRangeCylinderPositionSensorislocatedinthe
transmissiononthelowerportionofthecontrolhousing.

4

Group43

SplitCylinderPositionSensor

TheSplitCylinderPositionSensorislocatedinthe
transmissiononthelowerportionofthecontrolhousing.

1st/ReverseCylinderPositionSensor

The1st/ReverseCylinderPositionSensorislocatedinthe
transmissiononthelowerportionofthecontrolhousing.

2nd/3rdGearCylinderPositionSensor

The2nd/3rdGearCylinderPositionSensorislocatedinthe
transmissiononthelowerportionofthecontrolhousing.

TransmissionControlModule(TCM)

TheTCMcommunicateswiththeGearSelectorControl
Module(GSCM)andotherECMsinthevehiclethroughthe
SAEJ1939andSAEJ1587datalinks.Thefunctionalityof
theTCMcanbedifferentdependingonthetypeofsoftware
packagesthatareinstalled.TheTCMcontainsthefollowing
components:

•SAEJ1587datalink

•SAEJ1939datalink

•CAN2datalink

•11Powerdrivers

•InclinationSensor

•TemperatureSensor

•9ControllingSolenoidV alves

TheTransmissionControlModulelocatedontheupperportion
ofthecontrolhousing.

MID130TransmissionControlUnit

LubricationSystem

Thetransmissionislubricatedthroughacombinationof
pressurefromanoilpumpandsplashing.Theoilisledintothe
mainshafttolubricateandcooltherangegears,theinputshaft
andmainshaftbearings.Thecountershaftbrakeandoutput
shaftbearings,arealsolubricated.Thelubricationsystemhas
twooverowvalves.Onevalveensuresthatthetransmission
islubricatediftheltergetsblockedwhiletheotherprevents
excessivepressureinthesystem,e.g.duringcoldstart.The
valvesaremadeupofacompressionspringandavalvepeg.

5

Group43

MID223GearSelectorControlUnit

Themanufacturerdiagnostictoolisthepreferredtoolfor
performingdiagnosticwork.Contactyourlocaldealerfor
moreinformationorvisit“www.premiumtechtool.com”.

SystemOverview

MID223GearSelectorControlUnit

Thegearselectorisattachedtothedriversseatandcan
befoldedawaytoaidinenteringthecabin.Therearetwo
availableselectorcongurations,abasicandapremium.The
selectorinthevehicleisdependantonwhichprogrampackage
levelthevehicleisbuiltwith.Bothselectorshavegearpositions
ofR(Reverse),N(Neutral),D(Drive),andM(Manual).With
theselectorinthedrivepositionthetransmissionwillshiftas
anautomatic,performinggearselectionsandshiftingwithout
driverinput.Wheninthemanualposition,thedrivereither
selectsthegearsusingthegearselectorbutton(premium
selector)orwilllockthegearthatthetransmissionispresently
operatinginandholdthatgearuntiltheselectorisplacedinthe
drivepositionagain(basicselector).Withthebasicselector,if

SelectorFolding

Thegearselectoriscapableoffoldingforwardtoaidincab
entryandisalsousedtoidentifywhichsoftwarelevelthat
isprogrammedintheTCM.Withtheselectorintheneutral
position(N)pressinthefoldbuttonandthelevercanbefolded

LimpHomeMode

themanualpositionisengagedatastopthevehiclewillstartin
rstandholdthatgear.Thebasicselectorisn’tequippedwith
agearselectorbuttonoraeconomy/performancedivemode
button.InsituationswheretheI-Shiftisunintentionallyleftin
gearwiththeparkingbrakeapplied,thetransmissioncontrol
module(TCM)willautomaticallygotoneutralwhenthekey
switchisturnedoff.Thisisdonetoavoidthetransmission
gettingstuckingearduetodriveline“torqueup”.Thereis
agearselectorcontrolmodule(GSCM)thatislocatedin
thecenterofthedash.TheGSCMreceivessignalsfrom
theselectorandinterpretsthesesignalsintocommunication
informationthatistransmittedtotheTCM.

forward.Thedisplaywillthenshowtheprogrampackagelevel
inplaceofthedrivingmode.Thisisfoundjusttotherightof
thepresentgearwithinthedisplay.

Note:LimpHomeModeshouldonlybeusedtogetavehicle
toasafeorsecurelocation.Itisnotmeantfordrivingany
distance.

Attimeswhenasensorfailureorcertaininternaltransmission
damagehasoccurred,“LimpHomeMode”canbeactivated.
Pressthe“L”buttononthegearselectorandmovethegear
levertotheDpositiontoactive“LimpHomeMode”.When

Sensors

GearSelectorControlModule(GSCM)

ThegearselectorcommunicateswiththeGSCMusing8wires.
Thesewiresareusedtodecodeaswitchmatrixinsidethe
GSCM.

Insidethegearselectorleverthereareanumberofswitches.
Someoftheswitchesarenormalandsomearehall-effect
switches.

TheGSCMislocatedinthecenterofthedashjustrearofthe
VehicleECU.

6

activated,LisdisplayedasthedrivingmodeintheDID.In
"LimpHomeMode",onlyforwardgears1,3and5areavailable
forvehicleswiththepremiumselectorandonlyrstgearfor
vehicleswiththebasicselector.Nomatterwhichselectorthe
vehiclehas,reversegear1isavailablealso.Thevehiclemust
bestationarytoshiftgears.The“LimpHomeMode”,willbe
deactivatedwhentheignitionisturnedoff.Thismodeisonly
meanttogetavehicletoasafeorsecurelocation.

Group43

Troubleshooting

MID130TransmissionControlUnit,FaultCodes

Themanufacturerdiagnostictoolisthepreferredtoolfor
performingdiagnosticwork.Contactyourlocaldealerfor
moreinformationorvisit“www.premiumtechtool.com”.

Thecontrolmodulesontheinformationlinkcommunicate
accordingtotheSAEJ1587standard.Thestandardhasbeen
extendedwithVolvo’sownsupplement(PPID,PSID).Thefault
codessetbythecontrolmodulescontaininformationthatis
describedbythefollowingabbreviations.

MID130TransmissionControlUnit,FaultCodes

MIDMessageIdenticationDescription:

Identicationofacontrolmodule.

PIDParameterIdenticationDescription:

Identicationofaparameter(value).

PPIDProprietaryParameterIdentication

DescriptionVolvo:
Uniqueidenticationofaparameter(value).

FMIT able

FMIDisplayT ext

0T oohighvalueDatavalid,butabovethenormalworkrange

1T oolowvalueDatavalid,butbelowthenormalworkrange

2IncorrectdataDataerratic,Intermittentorincorrect

3

4

5

6

7

8

9

10

11

12

13Incorrectcalibration

14

15

Electricalfault

Electricalfault

ElectricalfaultCurrentbelownormaloropencircuit

ElectricalfaultCurrentabovenormalorgroundedcircuit

Mechanicalfault

MechanicalorelectricalfaultAbnormalfrequency,pulsewidthorperiod

Communicationfault

MechanicalorelectricalfaultAbnormalrateofchange

UnknownfaultFailuremodenotidentiable

Componentfault

UnknownfaultSpecialinstructions

UnknownfaultReservedforfutureassignmentbySAEDataFormalSubcommittee

SAET ext

Voltageabovenormalorshortedhigh

Voltagebelownormalorshortedlow

Mechanicalsystemnotrespondingproperly

Abnormalupdaterate

Badintelligentdeviceorcomponent

Outofcalibration

SIDSubsystemIdenticationDescription:

PSIDProprietarySubsystemIdentication

FMIFailureModeIdentier:

Identicationofacomponent.

DescriptionVolvo:
Uniqueidenticationofacomponent.

Identicationoffaulttypes.

7

Group43

MID130Controlmodule,FaultTracing

PID

“MID130PID31RangeCylinder,Position”,page10

“MID130PID32SplitCylinder,Position”,page11

“MID130PID33ClutchCylinder,Position”,page12

“MID130PID36ClutchWear,Status”,page14

“MID130PID37AirPressure,Transmission”,page14

“MID130PID65BrakeSwitch”,page14

“MID130PID158Controlmodule,BatteryVoltage”,page15

“MID130PID160MainShaft,RotationSpeed”,page16

“MID130PID161InputShaft,RotationSpeed”,page20

“MID130PID177OilT emperature,Transmission”,page23

PPID

MID130TransmissionControlUnit,FaultCodes

“MID130PPID10GearSelectorCylinder1,Position”,page24

“MID130PPID11GearSelectorCylinder2,Position”,page24

“MID130PPID50Clutch,Pre-load”,page25

“MID130PPID51ClutchDisc,PullPosition”,page25

“MID130PPID54ECM+5VOutput”,page26

“MID130PPID55ECM,T emperature”,page26

“MID130PPID140InclinationAngle”,page26

8

Group43

MID130TransmissionControlUnit,FaultCodes

PSID

“MID130PSID1PWMV alve,QuickEngagement”,page27

“MID130PSID2PWMV alve,SlowEngagement”,page28

“MID130PSID3PWMValve,QuickDisconnection”,page29

“MID130PSID4PWMV alve,SlowDisconnection”,page30

“MID130PSID5Ground,QuickPWMValves”,page30

“MID130PSID6Ground,SlowPWMValves”,page31

“MID130PSID12SolenoidValve,GearSelectorCylinder1,Inner”,page31

“MID130PSID13SolenoidValve,GearSelectorCylinder1,Outer”,page32

“MID130PSID14SolenoidValve,GearSelectorCylinder2,Inner”,page32

“MID130PSID15SolenoidValve,GearSelectorCylinder2,Outer”,page33

“MID130PSID20SolenoidValve,PowerT ake-off1”,page33

“MID130PSID21SolenoidValve,PowerT ake-off2”,page34

“MID130PSID22SolenoidValve,Brake,CounterShaft”,page35

“MID130PSID23SplitEngagementSystem”,page36

“MID130PSID24RangeEngagementSystem”,page37

“MID130PSID25Gears1/REngagementSystem”,page38

“MID130PSID26Gears2/3EngagementSystem”,page40

“MID130PSID27ClutchSystem”,page42

“MID130PSID28TransmissionBrake”,page44

“MID130PSID200CommunicationInterference,DataLink,EngineControlModule(ECM)”,page44

“MID130PSID201CommunicationInterference,DataLink,V ehicleECU”,page45

“MID130PSID204CommunicationInterference,DataLink,BrakeControlModule”,page46

“MID130PSID207CommunicationInterference,DataLink,GearSelectorControlModule”,page46

“MID130PSID210J1939DataLinkInterruption,LightingECM”,page47

“MID130PSID211J1939DataLinkInterruption,AdaptiveCruiseControlECM”,page47

“MID130PSID232PowertrainCAN”,page48

“MID130PSID254DIEESignal”,page48

SID

“MID130SID35SolenoidV alve,HighRange”,page49

“MID130SID36SolenoidV alve,LowRange”,page50

“MID130SID37SolenoidV alve,HighSplit”,page51

“MID130SID38SolenoidV alve,LowSplit”,page52

“MID130SID231SAEJ1939DataLink”,page53

“MID130SID240ProgramMemory”,page53

“MID130SID250SAEJ1587DataLink”,page53

“MID130SID253CalibrationMemoryEEPROM”,page53

9

Group43

MID130PID31RangeCylinder,Position

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI3

FMI5

FMI6

FMI13

FMI
Description:

•Voltage

above
normal,or
shortedto
highsource

•Current

belownormal
oropen
circuit

•Current

abovenormal
orgrounded
circuit

•Calibration

valueoutof
range

FaultCondition:PossibleSymptoms:PossibleCause:

•StatusfromASIC

isshortcircuitto
U-BATT

•StatusfromASIC

isopencircuit

•StatusfromASIC

isshortcircuitto
ground

•Thechecksum

inNVRAMisnot
corrector,the
sensorhasnot
beencalibrated.

•Slowgearchanges

•Yellowlampissent

•Yellowlampissent

•Slowgearchanges

•Yellowlampissent

•Slowgearchanges

•Yellowlampissent

•Crankingisinhibited

•Enginecannotstart

•N/A

•N/A

•N/A

•N/A

10

Group43

MID130PID32SplitCylinder,Position

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI3

FMI5

FMI6

FMI13

FMI
Description:

•Voltage

above
normal,or
shortedto
highsource

•Current

belownormal
oropen
circuit

•Current

abovenormal
orgrounded
circuit

•Calibration

valueoutof
range

FaultCondition:PossibleSymptoms:PossibleCause:

•StatusfromASIC

isshortcircuitto
U-BATT

•StatusfromASIC

isopencircuit

•StatusfromASIC

isshortcircuitto
ground

•Thechecksum

inNVRAMisnot
corrector,the
sensorhasnot
beencalibrated.

•Slowgearchanges

•Yellowlampissent

•Yellowlampissent

•Slowgearchanges

•Yellowlampissent

•Slowgearchanges

•Yellowlampissent

•Crankingisinhibited

•Enginecannotstart

•N/A

•N/A

•N/A

•N/A

11

Group43

MID130PID33ClutchCylinder,Position

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI2

FMI3

FMI5

FMI
Description:

•Dataerratic,

•Voltage

•Current

intermittent,
orincorrect

above
normal,or
shortedto
highsource

belownormal
oropen
circuit

FaultCondition:PossibleSymptoms:PossibleCause:

•Thedifference

betweenclutch
positions
indicatedbythe
sensorsignal
(SEPoC)and
theinverted
sensorsignal
(SEPoCINV)is
tolargeandboth
signalsarewithin
normalrange

•Sensorsignalis

shortcircuitto
UBATTorsensor
supplywhen:at
leastoneofthe
sensorsignals
isabovenormal
range

•Opencircuit

onanyofthe
sensorsignalsis
detectedwhen:
oneofthesensor
signalsiswithin
normalrangeand
theothersensor
signalisbelow
normalrange

•Yellowlampissent

•Slowclutch

performance

•Roughshiftingatstart

andatslowspeed

•Slowgearchanges

•Yellowlampissent

•Slowclutch

performance

•Roughshiftingatstart

andatslowspeed

•Slowgearchanges

•Yellowlampissent

•Slowclutch

performance

•Roughshiftingatstart

andatslowspeed

•Slowgearchanges

•N/A

•N/A

•N/A

•Opencircuit

ongroundis
detectedwhen
boththesensor
signalsarewithin
thenormalrange
andthesumof
thesensorsignals
isaboveaspecic
value

12

Group43

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI12

FMI13

FMI
Description:

•Faultydevice

orcomponent

•Calibration

valueoutof
range

FaultCondition:PossibleSymptoms:PossibleCause:

Bothsensorsignals
arebelownormal
when:

•Statusofthe

sensorASICis
internalfaulton
thesensoror

•Yellowlampissent

•Slowclutch

performance

•Roughshiftingatstart

andatslowspeed

•Slowgearchanges

•N/A

•Shortcircuitto

groundonanyof
thesensorsignals
or

•Opencircuiton

supplyor

•Shortcircuit

betweenthetwo
sensorsignals

•Thechecksum

inNVRAMisnot
corrector,the
sensorhasnot
beencalibrated.

•Yellowlampissent

•Crankingisinhibited

•Enginecannotstart

•N/A

13

Group43

MID130PID36ClutchWear,Status

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI0

FMIDescription:

•Datavalidbutabove

normaloperational
range

MID130PID37AirPressure,Transmission

Typeof
fault:

FMI0

FMI1

FMI3

FMI5

FMIDescription:

•Datavalidbutabove

normaloperational
range

•Datavalidbutbelow

operationalrange

•Voltageabove

normalorshorted
high

•Currentbelow

normaloropen
circuit

FaultCondition:

•Theclutchwearis

morethanorequal
to"SERVICEDUE
POSITION"

FaultCondition:

•Sensorsignalisin

normalrange

•Pressureisabove

145PSI(10.0bar)

•Sensorsignalisin

normalrange

•Pressureisbelow

72.5PSI(5.0bar)

•Thesensorsignal

isabovenormal
range

•Thesensorsignal

isbelownormal
range

Possible
Symptoms:

•Yellowlampis

sent

•Ifactiveforalong

periodoftime
theclutchmay
completelywear
outandfail

Possible
Symptoms:

•Yellowlampis

sent

•Slowclutch

performance

•Yellowlampis

sent

•Thesymbolfor

compressedair,
transmissionis
sent

•Gearchanges

maybeabsent

•Slowclutch

performance

•Yellowlampis

sent

•Yellowlampis

sent

PossibleCause:

•N/A

PossibleCause:

•N/A

•N/A

•N/A

•N/A

MID130PID65BrakeSwitch

Typeof
fault:

FMI14

14

FMIDescription:

•SpecialInstructions•Thegearlever

FaultCondition:

ismovedfrom
neutralor“FOLD”
positionwithout
priorapplicationof
theservicebrake

Possible
Symptoms:

•Whitelampissent

togetherwithpop
upmessage

•Thetransmission

willnotengage
theselectedgear
(staysinneutral)

PossibleCause:

•N/A

Group43

MID130PID158Controlmodule,BatteryVoltage

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI0

FMI1

FMIDescription:

•Datavalidbutabove

normaloperational
range

•Datavalidbutbelow

operationalrange

FaultCondition:

•12VoltSystem:

Voltageisabove
19V

•12VoltSystem:

Voltageisbelow9
Vandtheengine
hasbeenrunning
for5s

Possible
Symptoms:

•Yellowlampis

sent

•Yellowlampis

sent

•Reduced

transmission
performance

PossibleCause:

•N/A

•N/A

15

Group43

MID130PID160MainShaft,RotationSpeed

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI1

FMIDescription:

•Datavalidbutbelow

operationalrange

FaultCondition:

•Thesensorsignal

iswithinnormal
rangeand,

•Themainshaft

speeddiffersfrom
boththevalueof
thecountershaft
speedandthe
vehiclespeed
receivedfromthe
VehicleECU

Thefollowing
conditionsmustbe
fullledforatime
of2.0sinorderto
activate:

•Agear(not

neutral)is
engagedinthe
transmission

•Thevalueofthe

inputshaftspeed
calculatedfrom
themainshaft
speedsensor
(SESM)ismore
than300rpm

•Thevalueofthe

inputshaftspeed
calculatedfrom
thecountershaft
speedsensor
(SESC)ismore
than300rpm

Possible
Symptoms:

•Yellowlampis

sent

•Slowgear

changes

•Roughgear

changes

PossibleCause:

•N/A

16

Group43

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI1

FMIDescription:

(Continued)

FaultCondition:

•Thevaluesofthe

inputshaftspeed
calculatedfrom
themainshaft
speedsensor
(SESM)andthe
countershaft
speedsensor
(SESC)differ
morethan50rpm

Possible
Symptoms:

PossibleCause:

•Thevaluesofthe

inputshaftspeed
calculatedfrom
themainshaft
speedsensor
(SESM)andthe
vehiclespeed
receivedfromthe
VehicleECUdiffer
morethan30rpm

•Thevaluesofthe

inputshaftspeed
calculatedfrom
thecountershaft
speedsensor
(SESC)andthe
vehiclespeed
receivedfromthe
VehicleECUdiffer
lessthan30rpm

17

Group43

MID130TransmissionControlUnit,FaultCodes

Typeof
fault:

FMI2

FMIDescription:

•Dataerratic,

intermittent,or
incorrect

FaultCondition:

•Thesensor

indicateswrong
direction

Thefollowing
conditionsmustbe
fullledforatime
of2,0sinorderto
activate:

•Theinput

shaftspeed
calculatedfrom
thecountershaft
speedsensor
(SECS)isabove
300rpmandthe
clutchisengaged
or

•Theinput

shaftspeed
calculatedfrom
thecountershaft
speedsensor
(SECS)isabove
600rpmandthe
clutchpositionis
moreengaged
thantheslippoint
andtheengine
speedisreceived
fromtheengine
ECMandabove
600rpm

•Aforwardgear

isengagedin
thetransmission
andthe
mainshaftspeed
sensor(SESM)
indicatesreverse
movementor

•Areversegearis

engagedandthe
mainshaftspeed
sensor(SESM)
indicatesforward
movement

•Thereisnoother

activefaulton
thesensorforthe
mainshaftspeed
(SEMS)

Possible
Symptoms:

•Yellowlampis

sent

•Slowgear

changes

PossibleCause:

•N/A

18