2001 TOYOTA PRIUS Service Repair Manual

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Page 785 of 1943

TOYOTA PRIUS 2001 Service Repair Manual DI±188
± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
2001 PRIUS (RM778U)
127Limited driving
128Limited driving
134Impossible to drive
135Impossible to drive
136Normal driving
137Normal driving
138Lim

Page 786 of 1943

TOYOTA PRIUS 2001 Service Repair Manual ± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±189
2001 PRIUS (RM778U)
179Impossible to drive
180Impossible to drive
181Impossible to drive
182Impossible to drive
183Impossible to drive
184Impossib

Page 787 of 1943

TOYOTA PRIUS 2001 Service Repair Manual DI±190
± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
2001 PRIUS (RM778U)
218Regenerative brake ineffective
219Regenerative brake ineffective
P3109220Battery ECU Communication
Circuit MalfunctionRegen

Page 788 of 1943

TOYOTA PRIUS 2001 Service Repair Manual ± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±191
2001 PRIUS (RM778U)
263Normal driving
264Normal driving
265Normal driving
266Limited driving
267Limited driving
268Limited driving
269Limited driv

Page 789 of 1943

TOYOTA PRIUS 2001 Service Repair Manual DI±192
± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
2001 PRIUS (RM778U)
309Limited driving
311Normal driving
312Normal driving
313Normal driving
314Normal driving
315Normal driving
316Limited drivin

Page 790 of 1943

TOYOTA PRIUS 2001 Service Repair Manual ± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±193
2001 PRIUS (RM778U)
5. CHECK FOR INTERMITTENT PROBLEMS
(a) Perform a simulation test (See page IN±41).
In the simulation test, reproduce the driv

± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±193
2001 PRIUS (RM778U)
5. CHECK FOR INTERMITTENT PROBLEMS
(a) Perform a simulation test (See page IN±41).
In the simulation test, reproduce the driving condition at the trouble occurrence according to the cus-
tomer 's comments and freeze frame data recorded with DTC, such as an opening angle of the acceler-
ator pedal, SOC, engine coolant temperature, engine rpm, and MG/1MG2 rpm and torque.
(b) Check the connector and terminal (See page IN±41).
(c) Handle the connector (See page IN±41).
6. TOYOTA HAND±HELD TESTER DISPLAY ITEMS
TOYOTA Hand±held tester displayMeasurement Item
1 BEF LATST ORNumber of operation of 1 trip before last
1 BEF LATST TRPNumber of trips before last
2 BEF LATST ORNumber of operation 2 trips before last
2 BEF LATST TRPNumber of trips 2 before last
ABNML CON BR±HVCommunication malfunction between HV ECU and brake
ACC SENSOR MAINMain accelerator sensor
ACC SENSOR SUBSub accelerator sensor
ACC TENT TRBLETentative trouble of accelerator
ACC THROTTLEAccelerator throttle
ACCEL MODEHistory of acceleration and reduction
AIR CON REQUESTAir conditioner request
AUX. BATT LOWAuxiliary battery becomes week
AUX. BATT VVoltage of auxiliary battery
BATT HIGH TEMPTemperature of the battery is too high
BATT HIGH VOLTVoltage of the battery is too high
BATT LOW BOLTVoltage of the battery is low
BATT OVER LOADBattery is overloaded
BATT SAVE RQSTRequest to save the main battery
BATTERY FULLBattery full
BRAKE TORQBrake torque
CELL TEMP±MAXHighest temperature of all battery cells
CELL TEMP±MINLowest temperature of all battery cells
CHG RESTRICTIONCharge restriction
COOLANT TEMPWater temperature
CRUISE CONTROLCondition of the cruise control
DC/DC CONV STOPDC/DC converter stop signal
DC/DC CONV STOPFactors causing DC/DC converter to stop
DC/DC STOP FACTDC/DC converter has stopped at least once
DC/DC V UNSETDC/DC voltage is unsettled
DCHG RQST SOCDischarge request to adjust SOC
DISCHAG INHIBITBattery is inhibited to discharge

Page 791 of 1943

TOYOTA PRIUS 2001 Service Repair Manual DI±194
± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
2001 PRIUS (RM778U)
0: When engine is stopped
1: When stopping engine
2: When starting engine
DRIVE CONDITION3: When cranking engine or engine is

Page 792 of 1943

TOYOTA PRIUS 2001 Service Repair Manual ± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±195
2001 PRIUS (RM778U) MG1 CURRENT W
Electric current of MG1 W phase
MG1 INV TEMP HITemperature of inverter MG1 is high
MG1 REVMG1 revolution
MG1 TEM

± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±195
2001 PRIUS (RM778U) MG1 CURRENT W
Electric current of MG1 W phase
MG1 INV TEMP HITemperature of inverter MG1 is high
MG1 REVMG1 revolution
MG1 TEMPMotor temperature of MG1
MG1 TEMP HIGHTemperature fo MG1 is too high
MG2 TEMP HIGHTemperature fo MG2 is too high
MG1 CURRENT VElectric cuurent of MG1 is V phase
MG1 CURRENT WElectric cuurent of MG1 is W phase
MG1 INV TEMP HITemperature of inverter MG1 is higt
MG1 REVMG1 revolution
MG1 TEMPMotor temperature of MG1
MG1 TEMP HIGHTemperature of MG1 is high
MG1 TORQMG1 torque
MG2 CURRENT VElectric cuurent of MG2 is V phase
MG2 CURRENT WElectric cuurent of MG2 is W phase
MG2 INV TEMP HITemperature of inverter MG2 is higt
MG2 REVMG2 revolution
MG2 TEMPMotor temperature of MG2
MG2 TEMP HIGHTemperature of MG2 is high
MG2 TORQMG2 torque
N RANGE OVR TIMELeaving shift gear into N position over a period of time
N RANGE CTRL1N position control due to incomplete shift gears
N RANGE CTRL2N position control due to rapid shift gear (D±R)
OCCURRENCE ORDROrder in which the trouble occurs
OCCURRNCE TRIPNumber of trips when this error occurred
OUTPUT STOPOutput stop
OUTPUT V OVEROutput voltage is too high
OVER CURRENTElectric current of the batytery is too high
OVER VOLTAGEVoltage of the battery is too high
OVR HEAT PRTECTOverheat protection
POWER RQSTPower output requested by HV ECU
PWR RESOURCE IBPower resource IB
PWR RESOURCE VMpower resource VM
RAPID SPD CHANGVehicle speed is changed too rapidly
REGEN EXEC TORQTorque volue of regenerative brake
REGEN IH FACTORInhibiting factor of regeneration
REGEN RQST TORQTorque valueof regenerative brake requested by HV ECU
REGN BRK INEFCTRegenerative brake is ineffective
RESIST OVR HEATRestriction resist is overheating
SG B IN REDUCINShifting gear into ºBº in reducing the speed
SG N IN REDUC/PShifting gear into ºNº reducing the speed
SHIFT BEF READYShifting gear before ºREADYº light turns on
SHIFT POSITIONShift position
SHIFT SENSOR1Shift sensor 1
SHIFT SENSOR2Shift sensor 2
SOCStated of charge

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