2001 TOYOTA PRIUS Service Repair Manual

DI±204
± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
2001 PRIUS (RM778U)DTC NO.
INF. CodeDetection ItemDetecting Condition
288Motor inverter current sensor malfunction (V phase sub sensor)
289Open in motor inverter current sensor (V phase sub sensor)
290Motor inverter current sensor malfunction (V phase main sensor)
291(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
292Open in motor inverter current sensor (V phase main sensor)
293(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
294Mt I t C tSMotor inverter current sensor V phase performance problem
295
Motor Inverter Current Sen-
sor Malfunction(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
296Motor inverter current sensor malfunction (W phase sub sensor)
297Open in motor inverter current sensor (W phase sub sensor)
298Motor inverter current sensor malfunction (W phase main sensor)
299(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
300Open in motor inverter current sensor (W phase main sensor)
301(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
302Mt I t C tSMotor inverter current sensor W phase performance problem
303
Motor Inverter Current Sen-
sor Malfunction(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
304Motor Gate Shutdown Signal+B short in motor gate shutdown signal circuit
P3125305
Motor Gate Shutdown Signal
Line Connection MalfunctionOpen or GND short in motor gate shutdown signal circuitP3125
306Failure in Monitoring Motor
Torque PerformanceFailure in monitoring motor torque performance
307Abnormal Current Value of
MotorAbnormal current value of motor
308Detection of Collision SignalInput of collision signal from airbag or inverter
309Motor PWM Line Connection
MalfunctionOpen or short in generator inverter switching wiring (GUU, GVU, GWU)
311Generator Inverter Malfunc-
tionGenerator inverter malfunction
312Open or +B short in generator inverter temperature sensor
313Generator Inverter Tempera-GND short in generator inverter temperature sensor
314
Generator Inverter Tem era
ture Sensor MalfunctionGenerator inverter temperature sensor malfunction
315Generator inverter temperature sensor performance problem
316+B short in generator inverter stop signal circuit
317Over voltage of inverter
318Generator Inverter SinvOpen or GND short in generation inverter stop signal circuit
319
Generator Inverter Sinv
Voltage drop of inverter power source
320Inverter circuit broken
321+B short in generator inverter fail signal circuit
322Inverter overheating
323Generator Inverter FinvOpen or GND short in generator inverter fail signal circuit
324
Generator Inverter Finv
Inverter circuit broken
325Inverter internal short

± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±205
2001 PRIUS (RM778U)DTC NO.
INF. CodeDetection ItemDetecting Condition
326Generator inverter current sensor malfunction (V phase sub sensor)
327Open in generator inverter current sensor (V phase sub sensor)
328Generator inverter current sensor malfunction (V phase main sensor)
329(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
330Open in generator inverter current sensor (V phase main sensor)
331(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
332Generator inverter current sensor V phase performance problem
333Generator Inverter Current
(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
334
Generator Inverter Current
Sensor MalfunctionGenerator inverter current sensor malfunction (W phase sub sensor)
335Open in generator inverter current sensor (W phase sub sensor)
P3125336Generator inverter current sensor malfunction (W phase main sensor)P3125
337(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
338Open in generator inverter current sensor (W phase main sensor)
339(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
340Generator inverter current sensor W phase performance problem
341(when there is a history that the state of malfunction continued during in-
verter fail safe mode)
342Motor Gate Shutdown Signal+B short in generator gate shutdown signal circuit
343
Motor Gate Shutdown Signal
Line ConnectionOpen or GND short in generator gate shutdown signal circuit
344Failure in Monitoring Genera-
tor Torque PerformanceFailure in monitoring generator torque performance
345Abnormal Current Value of
GeneratorAbnormal current value of generator
P3130346Inverter Cooling System Mal-Water pump system malfunctionP3130347
Inverter Cooling System Mal
functionElectric cooling fan system malfunction
P3135348Circuit Breaker Sensor Mal-GND short in circuit breaker sensorP3135349
Circuit Breaker Sensor Mal
functionOpen or +B short in circuit breaker sensor
P3140350It l kMlf tiSafety devices operating with vehicle is stopped (ILK signal ON)P3140351Interlock MalfunctionOpen circuit in interlock signal circuit while vehicle is running
P3145352Vehicle Speed Sensor Circuit
MalfunctionNo input of vehicle speed signal during cruise control driving

DI82N±02
A02508A04997
HV ECU Terminals
H12 H13 H14H11H10
1 2 4 5 6 7 8 93
10 11 12 13 14 1615 19 20 1718 21
22 23 24 25 26 27 28 29 30 311 2 4 5 63 7
8 9 10 11 12 13 14 16 15
19 20 1718 21 22 23 241 2 4 5 63
7 8 9 10 11 12
14 13 15 16 171 2 3 4 65 7 8 9
10 11 12 13 14 16 15 19 1718
20 21 22 25 26 27 28 23241 2 3 4 5 6 7
8 9 10 11 12 13 14 15
17 18 16 19 20 21 22
± DIAGNOSTICSHYBRID VEHICLE CONTROL SYSTEM
DI±207
2001 PRIUS (RM778U)
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
BATT (H14±3) e GND1
(H14±31)G±Y eW±BAlways9 ± 14
+B1 (H14±4) e GND1
(H14±31)W±G e W±BIgnition switch ON and ºREADYº light ON9 ± 14
+B2 (H14±5) e GND1
(H14±31)W±G e W±BIgnition switch ON and ºREADYº light ON9 ± 14
IGSW (H13±7) e GND1
(H14±31)B±W e W±BIgnition switch ON9 ± 14
ST2 (H13±6) e GND1
(H14±31)R±W e W±BIgnition switch ST9 ± 14
ST1 (H14±2) e GND1BYWBBrake pedal is depressedBelow 0.5ST1 (H14 2) e GND1
(H14±31)B±Y e W±BBrake pedal is released9 ± 14
STP (H14±1) e GND1GWWBBrake pedal is depressed9 ± 14STP (H14 1) e GND1
(H14±31)G±W e W±BBrake pedal is releasedBelow 0.5
VCP1 (H14±13) e GND1
(H14±31)Y e W±BIgnition switch ONApprox. 5
VPA1 (H14±14) e GND1GWBIgnition switch ON and accelerator pedal is releasedApprox. 1VPA1 (H14 14) e GND1
(H14±31)G eW±BIgnition switch ON and accelerator pedal is fully depressedApprox. 4
EP1 (H14±12) e GND1
(H14±31)L e W±BIgnition switch ONBelow 0.5
VCP2 (H14±23) e GND1
(H14±31)B e W±BIgnition switch ONApprox. 5
VPA2 (H14±15) e GND1WWBIgnition switch ON and accelerator pedal is releasedApprox. 1VPA2 (H14 15) e GND1
(H14±31)W eW±BIgnition switch ON and accelerator pedal is fully depressedApprox. 4
EP2 (H14±22) e GND1
(H14±31)R e W±BIgnition switch ONBelow 0.5
P (H13 15)GND1 (H14 31)LRWBShift lever is P positionBelow 1P (H13±15) e GND1 (H14±31)L±R eW±BExcept shift lever is P position4 or more
R (H13 14)GND1 (H14 31)RBWBShift lever is R positionBelow 1R (H13±14) e GND1 (H14±31)R±B eW±BExcept shift lever is R position4 or more
N (H13 13)GND1 (H14 31)LWWBShift lever is N positionBelow 1N (H13±13) e GND1 (H14±31)L±W eW±BExcept shift lever is N position4 or more
D (H13 23)GND1 (H14 31)LBWBShift lever is D positionBelow 1D (H13±23) e GND1 (H14±31)L±B eW±BExcept shift lever is D position4 or more
B (H13 22)GND1 (H14 31)LG RWBShift lever is B positionBelow 1B (H13±22) e GND1 (H14±31)LG±R eW±BExcept shift lever is B position4 or more