Terminals Of Ecu

HINT:

Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.

1. Waveform 1 (System main relay operation signal)
   WAVEFORM 1 (SYSTEM MAIN RELAY OPERATION SIGNAL)
   
   

   Item	Contents
   Terminal	CH1: SMRP-E1 CH2: SMRB - E1 CH3: SMRG - E1
   Equipment Setting	10 V/DIV., 500 ms./DIV.
   Condition	Power switch on (IG) → Power switch on (READY)

   Fig 2: Identifying Signal Waveform 1 (System Main Relay Operation Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Waveform 2 (Immobilizer communication signal)
   WAVEFORM 2 (IMMOBILIZER COMMUNICATION SIGNAL)
   
   

   Item	Contents
   Terminal	CH1: IMO-E1 CH2: IMI - E1
   Equipment Setting	5 V/DIV., 200 ms./DIV.
   Condition	Power switch off → Power switch on (IG) → Power switch on (READY)

   HINT:

   The waveform will vary depending on the content of the digital communication (digital signal).

   Fig 3: Identifying Signal Waveform 2 (Immobilizer Communication Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Waveform 3 (CAN communication signal)
   WAVEFORM 3 (CAN COMMUNICATION SIGNAL)
   
   

   Item	Contents
   Terminal	CH1: CANH-E1 CH2: CANL - E1
   Equipment Setting	1 V/DIV., 20 μs./DIV.
   Condition	Power switch on (IG)

   HINT:

   The waveform will vary depending on the content of the digital communication (digital signal).

   Fig 4: Identifying Signal Waveform 3 (CAN Communication Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Waveform 4 (Vehicle speed signal)
   WAVEFORM 4 (VEHICLE SPEED SIGNAL)
   
   

   Item	Contents
   Terminal	SPDI - E1
   Equipment Setting	5 V/DIV., 20 ms./DIV.
   Condition	Driving at approximately 20 km/h (12 mph) with power switch on (READY)

   HINT:

   The higher the vehicle speed, the shorter the cycle.

   Fig 5: Identifying Signal Waveform 4 (Vehicle Speed Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Waveform 5 (VLO signal)
   WAVEFORM 5 (VLO SIGNAL)
   
   

   Item	Contents
   Terminal	VLO - E1
   Equipment Setting	5 V/DIV., 50 ms./DIV.
   Condition	Power switch on (IG)

   Fig 6: Identifying Signal Waveform 5 (VLO Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   The cycle will vary depending on the specified voltage of the hybrid vehicle converter (DC/DC converter).

6. Waveform 6 (HV battery blower fan operation signal)
   WAVEFORM 6 (HV BATTERY BLOWER FAN OPERATION SIGNAL)
   
   

   Item	Contents
   Terminal	SI0-E1
   Equipment Setting	5V/DIV., 100ms./DIV.
   Condition	Power switch on (IG) during active test

   Fig 7: Identifying Signal Waveform 6 (HV Battery Blower Fan Operation Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Waveform 7 (HV water pump signal)
   WAVEFORM 7 (HV WATER PUMP SIGNAL)
   
   

   Item	Contents
   Terminal	IWP - E1
   Equipment Setting	5V/DIV., 100ms./DIV.
   Condition	Power switch on (READY)

   Fig 8: Identifying Signal Waveform 7 (HV Water Pump Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
8. Waveform 8 (Communication signal from hybrid vehicle control ECU to MG ECU)
   WAVEFORM 8 (COMMUNICATION SIGNAL FROM HYBRID VEHICLE CONTROL ECU TO MG ECU)
   
   

   Item	Contents
   Terminal	CH1: HTM+ - E1 CH2: HTM- - E1
   Equipment Setting	1 V/DIV., 200 μs./DIV.
   Condition	Power switch on (READY)

   HINT:

   The waveform will vary depending on the content of the digital communication (digital signal).

   Fig 9: Identifying Signal Waveform 8 (Communication Signal From Hybrid Vehicle Control ECU To MG ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
9. Waveform 9 (Communication signal from MG ECU to hybrid vehicle control ECU)
   WAVEFORM 9 (COMMUNICATION SIGNAL FROM MG ECU TO HYBRID VEHICLE CONTROL ECU)
   
   

   Item	Contents
   Terminal	CH1: MTH+ - E1 CH2: MTH- - E1
   Equipment Setting	1 V/DIV., 200 HS./DIV.
   Condition	Power switch on (READY)

   HINT:

   The waveform will vary depending on the content of the digital communication.

   Fig 10: Identifying Signal Waveform 9 (Communication Signal From MG ECU To Hybrid Vehicle Control ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
10. Waveform 10 (MG communication clock signal)
    WAVEFORM 10 (MG COMMUNICATION CLOCK SIGNAL)
    
    

    Item	Contents
    Terminal	CH1: CLK+ - E1 CH2: CLK- - E1
    Equipment Setting	1 V/DIV., 1 (μs./DIV.
    Condition	Power switch on (READY)

    Fig 11: Identifying Signal Waveform 10 (MG Communication Clock Signal)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
11. Waveform 11 (MG communication request signal)
    WAVEFORM 11 (MG COMMUNICATION REQUEST SIGNAL)
    
    

    Item	Contents
    Terminal	CH1: REQ+ - E1 CH2: REQ- - E1
    Equipment Setting	1 V/DIV., 1 ms./DIV.
    Condition	Power switch on (READY)

    Fig 12: Identifying Signal Waveform 11 (MG Communication Request Signal)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
12. Waveform 12 (Communication signal from battery smart unit to hybrid vehicle control ECU)
    WAVEFORM 12 (COMMUNICATION SIGNAL FROM BATTERY SMART UNIT TO HYBRID VEHICLE CONTROL ECU)
    
    

    Item	Contents
    Terminal	CH1: BTH+ - E1 CH2: BTH- - E1
    Equipment Setting	2 V/DIV., 500 μs./DIV.
    Condition	Power switch on (IG)

    HINT:

    The waveform will vary depending on the content of the digital communication (digital signal).

    Fig 13: Identifying Signal Waveform 12 (Communication Signal From Battery Smart Unit To Hybrid Vehicle Control ECU)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
13. Waveform 13 (Airbag deployment signal)
    WAVEFORM 13 (AIRBAG DEPLOYMENT SIGNAL)
    
    

    Item	Contents
    Terminal	ABFS - E1
    Equipment Setting	5 V/DIV., 500 ms./DIV.
    Condition	Power switch on (READY)

    Fig 14: Identifying Signal Waveform 13 (Airbag Deployment Signal)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
14. Waveform 14 (READY signal)
    WAVEFORM 14 (READY SIGNAL)
    
    

    Item	Contents
    Terminal	RDY - E1
    Equipment Setting	10V/DIV., 10ms./DIV.
    Condition	Power switch on (IG) / Power switch on (READY)

    Fig 15: Identifying Signal Waveform 14 (READY Signal)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
15. Waveform 15 (A/C communication signal)
    WAVEFORM 15 (A/C COMMUNICATION SIGNAL)
    
    

    Item	Contents
    Terminal	CH1: CLK - E1 CH2: ITE - E1 CH3: ETI - E1 CH4: STB - E1
    Equipment Setting	10V/DIV., 100ms./DIV.
    Condition	Power switch on (READY) with air conditioning system stopped

    HINT:

    The waveform will vary depending on the content of the digital communication (digital signal).

    Fig 16: Identifying Signal Waveform 15 (A/C Communication Signal)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
16. Waveform 16 (GO signal)
    WAVEFORM 16 (GO SIGNAL)
    
    

    Item	Contents
    Terminal	GO - E1
    Equipment Setting	5 V/DIV., 20 ms./DIV.
    Condition	Power switch on (READY) with engine running

    HINT:

    The pulse cycle becomes shorter as the engine speed increases.

    Fig 17: Identifying Signal Waveform 16 (GO Signal)

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 18: Identifying MG ECU Connector Terminals

    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TERMINAL DESCRIPTION AND SYMBOL REFERENCE
    
    

    Symbols (Terminals No.)	Wiring Color	Terminal Description	Condition	Standard Voltage (V)
    +B (A62-31) - GND1 (A62-11)	Y - W	MG ECU power source	Power switch on (IG)	10 to 14
    +B2 (A62-30) - GND1 (A62-11)	Y - W	MG ECU power source	Power switch on (IG)	10 to 14
    CLK+ (A62-28) - GND1 (A62-11)	B - W	Communication clock signal	Power switch on (IG)	10 to 14
    CLK- (A62-19) - GND1 (A62-11)	W - W	Communication clock signal	Power switch on (IG)	10 to 14
    ILKO (A62-32) - GND1 (A62-11)	B - W	Interlock switch signal	Power switch on (IG), A/C fuse cover and service plug grip installed correctly	Below 1
    ILKO (A62-32) - GND1 (A62-11)	B - W	Interlock switch signal	Power switch on (IG), A/C fuse cover and service plug grip detached	10 to 14
    REQ+ (A62-25) - GND1 (A62-11)	B - W	Communication request signal	Power switch on (IG)	Pulse generation (Waveform 2)
    MTH+ (A62-24) - GND1 (A62-11)	B - W	Communication signal from MG to HV	Power switch on (IG)	Pulse generation (Waveform 3)
    MTH- (A62-15) - GND1 (A62-11)	W - W	Communication signal from MG to HV	Power switch on (IG)	Pulse generation (Waveform 3)
    ILKI (A62-33) - GND1 (A62-11)	SB - W	Interlock switch signal	Power switch on (IG), A/C fuse cover and service plug grip installed correctly	Below 1
    ILKI (A62-33) - GND1 (A62-11)	SB - W	Interlock switch signal	Power switch on (IG), A/C fuse cover and service plug grip detached	10 to 14
    REQ- (A62-16) - GND1 (A62-11)	W - W	Communication request signal	Power switch on (IG)	Pulse generation (Waveform 2)
    GI(A62-13) - GND1 (A62-11)	B - W	GI signal	Power switch on (READY), engine started	Pulse generation (Waveform 4)
    HTM+ (A62-26) - GND1 (A62-11)	B - W	Communication signal from HV to MG	Power switch on (IG)	Pulse generation (Waveform 6
    HTM- (A62-17) - GND1 (A62-11)	W - W	Communication signal from HV to MG	Power switch on (IG)	Pulse generation (Waveform 6)
    HSDN (A62-12) - GND1 (A62-11)	L - W	MG shutdown signal	Power switch on (READY)	0 to 1
    GRF (C58-6) - GRFG (C58-5)	BR - G	Generator resolver signal	Generator resolver stopped or running	Pulse generation (Waveform 5)
    MRF (C58-13) - MRFG (C58-12)	BR - G	Motor resolver signal	Motor resolver stopped or running	Pulse generation (Waveform 1)
    MCS (C58-8) - MCSG (C58-9)	W - Y	Motor resolver signal	Motor resolver stopped or running	Pulse generation (Waveform 1)
    MSN (C58-11) - MSNG (C58-7)	L - R	Motor resolver signal	Motor resolver stopped or running	Pulse generation (Waveform 1)
    GSN (C58-1) - GSNG (C58-2)	L - R	Generator resolver signal	Generator resolver stopped or running	Pulse generation (Waveform 5)
    GCS (C58-3) - GCSG (C58-4)	W - Y	Generator resolver signal	Generator resolver stopped or running	Pulse generation (Waveform 5)

    NOTE: Do not measure voltage or waveform directly at the sealed side of the inverter with converter assembly connectors. Doing so may damage the connectors because these connectors are waterproof.

HINT:

Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.

1. Waveform 1 (Motor resolver signal)
   WAVEFORM 1 (MOTOR RESOLVER SIGNAL)
   
   

   Item	Contents
   Terminal	CH1: MRF - MRFG CH2: MSN - MSNG CH2: MCS - MCSG
   Equipment Setting	CH1: 10 V/DIV., 1 ms./DIV. CH2, CH3: 5 V/DIV., 1 ms./DIV.
   Condition	Resolver running

   HINT:

   Pulse cycle A becomes shorter as the rotor speed increases.

   Fig 19: Identifying Signal Waveform 1 (Motor Resolver Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Waveform 2 (MG ECU communication request signal)
   WAVEFORM 2 (MG ECU COMMUNICATION REQUEST SIGNAL)
   
   

   Item	Contents
   Terminal	CH1: REQ+ - GND1 CH2: REQ- - GND1
   Equipment Setting	1 V/DIV., 1 ms./DIV.
   Condition	Power switch on (IG)

   Fig 20: Identifying Signal Waveform 2 (MG ECU Communication Request Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Waveform 3 (Communication signal from MG ECU to hybrid vehicle control ECU)
   WAVEFORM 3 (COMMUNICATION SIGNAL FROM MG ECU TO HYBRID VEHICLE CONTROL ECU)
   
   

   Item	Contents
   Terminal	CH1: MTH+ - GND1 CH2: MTH- - GND1
   Equipment Setting	1 V/DIV., 200 HS./DIV.
   Condition	Power switch on (IG)

   HINT:

   The waveform will vary depending on the content of the digital communication (digital signal).

   Fig 21: Identifying Signal Waveform 3 (Communication Signal From MG ECU To Hybrid Vehicle Control ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Waveform 4 (GI signal)
   WAVEFORM 4 (GI SIGNAL)
   
   

   Item	Contents
   Terminal	CH1: GI - GND1
   Equipment Setting	5 V/DIV., 20 ms./DIV.
   Condition	Power switch on (READY) with engine running

   HINT:

   The pulse cycle becomes shorter as the engine speed increases.

   Fig 22: Identifying Signal Waveform 4 (GI Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Waveform 5 (Generator resolver signal)
   WAVEFORM 5 (GENERATOR RESOLVER SIGNAL)
   
   

   Item	Contents
   Terminal	CH1: GRF - GRFG CH2: GSN - GSNG CH2: GCS - GCSG
   Equipment Setting	CH1: 10V/DIV., 1 ms./DIV. CH2, CH3: 5 V/DIV., 1 ms./DIV.
   Condition	Resolver running

   HINT:

   Pulse cycle A becomes shorter as the rotor speed increases.

   Fig 23: Identifying Signal Waveform 5 (Generator Resolver Signal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Waveform 6 (Communication signal from hybrid vehicle control ECU to MG ECU)
   WAVEFORM 6 (COMMUNICATION SIGNAL FROM HYBRID VEHICLE CONTROL ECU TO MG ECU)
   
   

   Item	Contents
   Terminal	CH1: HTM+ - GND1 CH2: HTM- - GND1
   Equipment Setting	1 V/DIV., 200 ms./DIV.
   Condition	Power switch on (IG)

   HINT:

   The waveform will vary depending on the content of the digital communication (digital signal).

   Fig 24: Identifying Signal Waveform 6 (Communication Signal From Hybrid Vehicle Control ECU To MG ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002