08 GRP08a EBCM

7/28/2019 08 GRP08a EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

Brake Pressure

Sensor

C1101 vehicle speed >~40 kph Run/Crank ignition in range Two

base brake pressure Engine Status running Trips

No active DTCs C1102C1103

Vehicle Speed DTCs not activeTransmission state drive

C1102 BPS voltage 97% of Vref Run/Crank ignition in range Two(4.85 Volts) Trips

Wheel SpeedSensors

C1221 Secondary Parameter TwoNone TripsExceptions:None

Normal ModeDVT Mode

Base BrakePressure Sensor

(BPS)Performance

This DTC Detects aBPS Input Value

stuck in the validrange below thethreshold thatindicates the brake ison. Approximatethreshold is 10% offull scale input.

6 samples,where a

sampleconsists oftravelingabove 40 kph

8

volts at the 2 samples @10 ms loopECU

Operational

4) One or both wheelspeed input wires This code is set when

either of the following

fault conditions is detectedcontinuously for 20

08 GRP08a BAS

Hybrid EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

4.25 VoltsC1222 Secondary Parameter Two

None TripsExceptions:None

Normal ModeDVT Mode



Normal ModeDVT Mode

An open circuit or shortto ground fault isdetected when the lowside voltage is

A short to battery on thelow side circuit isdetected when the lowside voltage is

Right FrontWheel SpeedSensor Circuit

This DTC indicates afailure in the left frontwheel speed sensorcircuit either due to:

An open circuit or shortto ground on either thehigh or low side circuitwill cause the low sidevoltage to go to ground.

A short to battery on thehigh input circuit is notdiagnosed. Batteryvoltage on the high sidecircuit is normal and isrequired for propersensor operation.

Vehicle PowerMode

1) One or both wheelspeed input wires2) One or both wheelspeed input wiresshorted to ground3) Wheel speedsensor open

Continuous /Latched forignition cycleIgnition is >8


Operational


either of the followingfault conditions is detected

continuously for 20

An open circuit or shortto ground fault isdetected when the lowside voltage isA short to battery on thelow side circuit isdetected when the lowside voltage is

Left Rear WheelSpeed SensorCircuit

This DTC indicates afailure in the left frontwheel speed sensorcircuit either due to:

An open circuit or shortto ground on either thehigh or low side circuitwill cause the low sidevoltage to go to ground.A short to battery on the

high input circuit is notdiagnosed. Battery

Vehicle PowerMode

1) One or both wheel

speed input wires2) One or both wheel

Continuous /Latched forignition cycleIgnition is >8


Operational

08 GRP08a BAS

Hybrid EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum



Normal ModeDVT Mode

8


Operational


either of the following

fault conditions is detected

continuously for 20

An open circuit or shortto ground fault isdetected when the lowside voltage isA short to battery on the

low side circuit isdetected when the low

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Hybrid EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

>4.25 Volts

C1225 SecondaryParameters: Two1) The brake pedal is

not depressed Trips2) A left front wheelspeed sensor circuitmalfunction is notpresent

1) Brake switchalways off or open

This code is set whenthe change occurs 4times and the timebetween occurrences is

less than 100

Vehicles prone topowerhop have thefollowing additionalsecondary

parameters.

OR

3) Vehicle speed >45kph.or4) Engine_RPM 8 kphOR

8 volts

OR 0 kph

ECU Operational

Mode Condition:Normal Mode

side voltage is

Left Front WheelSpeed SensorCircuit Range/

Performance

This DTC representsa left front wheelspeed sensor circuit

malfunction that mebe causes due to:

A fault is present if theleft front wheel speedsignal indicates an

increase in wheel speedthat exceeds

16 kphbetween10ms

samples

Vehicle PowerModeCondition:

Continuous /Latched forignition cycle

Ignition is >8volts

2) External orinternal wheel speedcircuit intermittentopen

ECUOperationalModeCondition:This code sets by itself

when the followingconditions exist for3) Intermittent wheel

speed high and lowinputs shorted

together (passivesensors)

4) Internal integralbearing malfunction(i.e. damaged toothon speed ring)

2) The other threewheel speeds are

5) Worn suspensionor drive traincomponents

3) The differencebetween any of theother three wheelspeeds is

1) The left front and

another wheel speed =1) Wheel speed high

08 GRP08a BAS Hybrid EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

DVT Mode

>16 kphSecondaryParameters:1) ABS is inactive2) The brake pedal isnot depressed

3) The differencebetween the remainingtwo wheel speeds is

45kph.or4) Engine_RPM 8volts




speed high and lowinputs shortedtogether (passivesensors)

4) Internal integralbearing malfunction


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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

None

>8 kphOR

8 volts

OR 0 kph

ECU OperationalMode Condition:

Normal ModeDVT Mode

>16 kph

SecondaryParameters:1) ABS is inactive2) The brake pedal isnot depressed

3) The differencebetween the remaining

two wheel speeds is8volts


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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

1) Brake switchalways off or open

This code is set whenthe change occurs 4times and the timebetween occurrences is

less than 100

Vehicles prone topowerhop have thefollowing additionalsecondaryparameters.

OR

3) Vehicle speed >45kph.or4) Engine_RPM 8 kphOR

8 volts

OR 0 kph

ECU OperationalMode Condition:Normal ModeDVT Mode

>16 kph

SecondaryParameters:1) ABS is inactive2) The brake pedal isnot depressed




speed high and lowinputs shorted

together (passivesensors)



5) Worn suspensionor drive train

components

3) The differencebetween any of the

other three wheelspeeds is

1) The left front andanother wheel speed =

1) Wheel speed highand low inputsshorted together(passive sensor)

2) The remaining twowheel speeds are

2) Internal sensorfault


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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

3) The differencebetween the remainingtwo wheel speeds is

45kph.or4) Engine_RPM 8 kphOR

8volts




speed high and lowinputs shortedtogether (passivesensors)



5) Worn suspensionor drive train

components

3) The differencebetween any of the

other three wheelspeeds is


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08 GRP08 BAS

H b id EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

6) Electrical noisecoupled onto wheelspeed wires

This code sets inconjunction with anotherwheel speed 0 code ifthe following conditionsexist for 20000 ms

Ignition is >8 volts

OR 0 kph

ECU OperationalMode Condition:Normal ModeDVT Mode

>16 kph

SecondaryParameters:1) ABS is inactive2) The brake pedal is

not depressed3) The differencebetween the remainingtwo wheel speeds is

8voltsECUOperationalModeCondition:

A fault exists if the valueread from any RAM cell

does not match thevalue that was written to


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08 GRP08 BAS

H b id EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

C1256 Secondary Parameter TwoNone TripsExceptions:None

Normal ModeDVT Mode

C1FFF Secondary Parameter TwoNone TripsExceptions:None

Normal ModeDVT Mode

Secondary ParameterNoneExceptions:None

Normal ModeDVT Mode

Secondary ParameterNone

Exceptions:None

it.EBCM ControllerROM Error

This DTC indicatesan EBCM ROM Error

A fault exists if thechecksum calculated bythe controller does notmatch thepredetermined two bytechecksum.



Ignition is >8voltsECUOperationalModeCondition:

EBCM HardwareFault

MCU ManufacturingData AreaChecksum Fault

OR

This fault is set if thechecksum calculated bythe controller for theCustomer Data AreaEEPROM block doesnot match the block'spredeterminedchecksum.


Run oneduringcontrollerinitializationIgnition is >8

voltsECUOperationalModeCondition:

MCU CalibrationData AreaChecksum FaultOR

This fault is set if thechecksum calculated bythe controller for theCalibration Data Areablock does not matchthe block'spredeterminedchecksum.




MCU EEPROMDynamic High Write

Checksum Fault

This fault is set if thechecksum calculated by

the controller for theHigh Frequency Write

Vehicle PowerMode

Condition:

Run oneduring

controllerinitializationIgnition is >8


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Hybrid EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

Normal ModeDVT Mode


Normal ModeDVT Mode

Secondary ParameterNone

Exceptions:None

Normal ModeDVT Mode

Secondary ParameterThe FLTLK bit is NOTset in the EDCTSTregister.Exceptions:None

OR Data Area EEPROMblock does not matchthe block'spredeterminedchecksum.


MCU EEPROMDynamic Low WriteChecksum Fault

OR

This fault is set if thechecksum calculated bythe controller for theLow Frequency WriteData Area EEPROM

block does not matchthe block'spredeterminedchecksum.



volts

ECUOperationalModeCondition:

MCU EEPROMCustomer Data

Checksum Fault

OR

This fault is set if thechecksum calculated by

the controller for theCustomer Data AreaEEPROM block doesnot match the block'spredeterminedchecksum.

Vehicle PowerMode

Condition:

Run oneduring

controllerinitializationIgnition is >8


MCU CPU FailsafeFault

OR

1) COP Service Test

Upon initial power-up a COP shall be

forced and the controller shall verify that

a non Power Up Reset condition occurs

during the COP invoked initialization

process and prior to completion of

initialization. At the completion of

initialization if it was determined that a

non POR reset condition had not

occurred, then this test will fail.

2) Initialization Vector Test

This test shall be conducted to verify

that forced good test patterns introduced


Run oneduringcontrollerinitialization

Ignition is >8


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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

Normal ModeDVT Mode

Secondary ParameterThe FLTLK bit is NOTset in the EDCTSTregister.Exceptions:

None

Normal Mode

DVT Mode


Normal ModeDVT Mode

into the processor do not result in a dual

processor hardware fault.

The CFLT bit and all seven EDC fault

bits in the EDCFLT register, the STKFLT

and STKERR bits within the EDCTST

register shall be read and verified to be

low. Additionally the FLT* bit in theEDCPORT register shall be read and

verified to be high. If any of the bits are

not correct, then this test shall fail and

the remaining dual processor tests shall


RAM Stack Overflow

OR

The last used byte ofRAM shall contain a pre-determined value of0xA5A5. Uponinitialization, and once

every 10 ms loop, thislocation and value shallbe verified. If the valuehas changedunexpectedly this faultwill set.




MCU Wheel SpeedH/W Fault

OR An output of the MCU isscaled to the frequencydefined by the calibration500 s with a 50% duty

cycle. This signal testseach of the 4 wheelspeeds. The test for eachchannel runs to allow for15 pulseaccumulator edge counts(both rising and fallingedges are captured) or amaximum of 8 times. If 1

ms elapses (with referenceto the assertion of the test



voltsECUOperational

ModeCondition:


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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

Secondary Paramaters:

None

Exceptions:

None

Normal ModeDVT Mode


None

Exceptions:

None

Normal ModeDVT Mode

signal) and 0 edges arereceived by a wheel speedinput, the fault is set,otherwise the period isverified to equal 500 s

plus or minus 52 s. If thecaptured signal does NOTverify correctly then thefault is set.

MCU Clock Fault

OR

The SCG PLL Loss OfLock bit (LOCKIF) andLoss of Clock (LOCIF)flags shall be monitored. If

either of these flags areset this fault will be set.The RDX 20 KHz TIMP7input capture shall be readand verified. Initially theperiod shall be sampledand verified to be between41 and 63 us. The inputshall be continuallymonitored and comparedto the original measuredvalue and shall not deviatebeyond 6.25%. If it doesnot verify correctly, thisfault will set.



Ignition is >8


MCU CPU Fault

OR

the EDCFLT register,then this test will fail.Upon an XIRQ interrupt

(i.e. the CFLT bit is setin the EDCFLT register)the following 13 bytesecondary CPU registercontent information shallbe stored to EEPROM -A (1byte), B (1 byte), X(2 bytes), and Y (2

bytes)registers, Program





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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum


NoneExceptions:

None

Normal Mode

DVT Mode


None

Exceptions:

None

Normal Mode

Counter (PC) (2 bytes);Stack Pointer (SP) (2bytes), Condition Code(CC) (1 byte), EDCFLTfault register (1 byte),and the STKFLT andSTKERR contents fromthe EDCTST register (1byte). An immediateCOP reset shall then beinitiated.

MCU A/D H/W Fault

(Initialization)

OR

Each of the two ATD

modules shall select theVRH, VRL, and (VRH +VRL)/2 special channelsto verify the expecteddigital result codes of$3FF, $000, and $200plus or minus 3 countseach respectively. If thecounts do

NOT verify, then thisfault will set.

Vehicle Power

ModeCondition:

Initialization


MCU A/D H/W Fault

OR

Each time theSensor_Supply_1_Output_Cmd changes fromON to OFF or OFF toON and after a delay of10ms, the VREF inputsat ATD0P3 andATD1P3 shall be read

with no greater than 100us delay between reads



Ignition is >8voltsECUOperationalMode

Condition:


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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

DVT Mode


None

Exceptions:

None

Normal ModeDVT Mode


None

Exceptions:

None

Normal ModeDVT Mode

and compared. If theinputs are not within 30counts ofeach other, then thisfault will set

MCU COP Fault

OR

This fault is set after themicroprocessor hasgone through a resetdue to a COP timer time

out.



Ignition is >8


MCU EEPROMDynamic High WriteFault

OR

The RAM image for thedynamic high data blockthat was written to EE

memory shall becompared to the writtenEE memory to verify avalid write cycle. If thecomparison fails, thewrite and verificationprocess shall berepeated. If the

verification processshows an error after the


After aDynamic HighData NVM

WriteIgnition is >8voltsECUOperationalModeCondition:

y

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t F lt M it t t M l ti Th h ld d E bl Ti MIL08 GRP08a BAS

Hybrid EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum


None

Exceptions:

None

Normal ModeDVT Mode


None

Exceptions:

None

Normal ModeDVT Mode

retry, then this fault willset.


After aDynamic LowData NVMWriteIgnition is >8

voltsECUOperational

ModeCondition:

MCU EEPROMCustomer Data WriteFault

OR

The RAM image for thecustomer data blockthat was written to EEmemory shall becompared to the writtenEE memory to verify a

valid write cycle. If thecomparison fails, thewrite and verificationprocess shall berepeated.If the verificationprocess shows an errorafter the retry, then thisfault will set.


After aCustomerNVM datawrite hasIgnition is >8

voltsECU

OperationalModeCondition:

MCU EEPROMDynamic Low WriteFault

OR

The RAM image for thedynamic low data blockthat was written to EEmemory shall becompared to the writtenEE memory to verify avalid write cycle. If the

comparison fails, thewrite and verificationprocess shall berepeated. If theverification processshows an error after theretry, then this fault willset.

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omponent Fault Monitor trategy Mal unction Threshold econdary Enable Time MIL08 GRP08a BAS

Hybrid EBCM

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omponent

System

Fault

Code

Monitor trategy

Description

Mal unction

Criteria

Threshold

Value

econdary

Parameters

Enable

Conditions

Time

Req'd

MIL

Illum

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08 GRP08a EBCM