HYBRID CONTROL SYSTEM TERMINALS OF ECU

*1: w/ Vehicle Proximity Notification System

1. Oscilloscope waveforms

   Tech Tips

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

   
   

   1. 

      Waveform 1 (Inverter water pump assembly signal)

      Item	Content
      Terminal	CH1: A80-14 (NIWP) ←→ O141-6 (E1) CH2: A80-13 (IWP) ←→ O141-6 (E1)
      Equipment Setting	5 V/DIV., 50 ms./DIV.
      Condition	Power switch on (READY)

   2. 

      Waveform 2 (DC/DC operation monitor / voltage change signal)

      Item	Content
      Terminal	A80-16 (VLO) ←→ O141-6 (E1)
      Equipment Setting	5 V/DIV., 50 ms./DIV.
      Condition	Power switch on (IG)

      Tech Tips

      The cycle will vary depending on the specified voltage of the DC/DC converter.

   3. 

      Waveform 3 (A/C communication signal)

      Item	Content
      Terminal	CH1: A81-10 (CLK) ←→ O141-6 (E1) CH2: A81-9 (ITE) ←→ O141-6 (E1) CH3: A81-8 (ETI) ←→ O141-6 (E1) CH4: A80-11 (STB) ←→ O141-6 (E1)
      Equipment Setting	10 V/DIV., 100 ms./DIV.
      Condition	Power switch on (READY), air conditioning system stopped

      Tech Tips

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

   4. 

      Waveform 4 (communication signal from MG ECU to hybrid vehicle control ECU assembly)

      Item	Content
      Terminal	CH1: A81-22 (MTH-) ←→ O141-6 (E1) CH2: A81-23 (MTH+) ←→ O141-6 (E1)
      Equipment Setting	1 V/DIV., 200 μs./DIV.
      Condition	Power switch on (READY)

      Tech Tips

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

   5. 

      Waveform 5 (communication signal from hybrid vehicle control ECU assembly to MG ECU)

      Item	Content
      Terminal	CH1: A81-25 (HTM-) ←→ O141-6 (E1) CH2: A81-24 (HTM+) ←→ O141-6 (E1)
      Equipment Setting	1 V/DIV., 200 μs./DIV.
      Condition	Power switch on (READY)

      Tech Tips

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

   6. 

      Waveform 6 (MG ECU communication request signal)

      Item	Content
      Terminal	CH1: A81-30 (REQ-) ←→ O141-6 (E1) CH2: A81-31 (REQ+) ←→ O141-6 (E1)
      Equipment Setting	1 V/DIV., 1 ms./DIV.
      Condition	Power switch on (READY)

   7. 

      Waveform 7 (MG communication clock signal)

      Item	Content
      Terminal	CH1: A81-32 (CLK-) ←→ O141-6 (E1) CH2: A81-33 (CLK+) ←→ O141-6 (E1)
      Equipment Setting	1 V/DIV., 1 μs./DIV.
      Condition	Power switch on (READY)

   8. 

      Waveform 8 (system main relay operation signal)

      Item	Content
      Terminal	CH1: O141-3 (SMRP) ←→ O141-5 (E01) CH2: O141-4 (SMRB) ←→ O141-5 (E01) CH3: O141-1 (SMRG) ←→ O141-5 (E01)
      Equipment Setting	10 V/DIV., 200 ms./DIV.
      Condition	Power switch on (IG) → Power switch on (READY)

   9. 

      Waveform 9 (communication signal from battery voltage sensor to hybrid vehicle control ECU assembly)

      Item	Content
      Terminal	CH1: O141-33 (BTH-) ←→ O141-6 (E1) CH2: O141-32 (BTH+) ←→ O141-6 (E1)
      Equipment Setting	2 V/DIV., 500 μs./DIV.
      Condition	Power switch on (IG)

      Tech Tips

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

   10. 

       Waveform 10 (CAN communication signal)

       Item	Content
       Terminal	CH1: O141-35 (CA2L) ←→ O141-6 (E1) CH2: O141-34 (CA2H) ←→ O141-6 (E1)
       Equipment Setting	1 V/DIV., 50 μs./DIV.
       Condition	Power switch on (IG)

       Tech Tips

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

   11. 

       Waveform 11 (airbag activation signal)

       Item	Content
       Terminal	O142-14 (ABFS) ←→ O141-6 (E1)
       Equipment Setting	5 V/DIV., 500 ms./DIV.
       Condition	Power switch on (READY)

   12. 

       Waveform 12 (CAN communication signal)

       Item	Content
       Terminal	CH1: O142-24 (CA1L) ←→ O141-6 (E1) CH2: O142-25 (CA1H) ←→ O141-6 (E1)
       Equipment Setting	1 V/DIV., 50 μs./DIV.
       Condition	Power switch on (IG)

       Tech Tips

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

   13. 

       Waveform 13 (HV battery blower fan operation signal)

       Item	Content
       Terminal	O142-29 (SI0) ←→ O141-6 (E1)
       Equipment Setting	5 V/DIV., 500 ms./DIV.
       Condition	Power switch on (IG), during Active Test

       Tech Tips

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

   14. 

       Waveform 14 (CAN communication signal)

       Item	Content
       Terminal	CH1: O142-30 (CA3N) ←→ O141-6 (E1) CH2: O142-31 (CA3P) ←→ O141-6 (E1)
       Equipment Setting	1 V/DIV., 50 μs./DIV.
       Condition	Power switch on (IG)

       Tech Tips

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

   

   *A	for LHD	*B	for RHD
   *a	Inverter with Converter Assembly	-	-

   Tech Tips

   Since the inverter with converter assembly uses waterproof connectors, the voltage and waveform cannot be inspected directly. Standard voltage readings and waveforms are indicated for reference only.

   Inverter with Converter Assembly (for LHD)

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Standard Condition
   A83-2 (MTH-) ←→ A83-30 (GND1)	W - W-B	Communication signal from MG ECU to hybrid vehicle control ECU assembly	Power switch on (READY)	Pulse generation (Waveform 3)
   A83-3 (MTH+) ←→ A83-30 (GND1)	B - W-B	Communication signal from hybrid vehicle control ECU assembly to MG ECU	Power switch on (READY)	Pulse generation (Waveform 3)
   A83-10 (+B) ←→ A83-30 (GND1)	L - W-B	MG ECU power source	Power switch on (IG)	11 to 14 V
   A83-11 (+B2) ←→ A83-30 (GND1)	L - W-B	MG ECU power source	Power switch on (IG)	11 to 14 V
   A83-13 (CLK-) ←→ A83-30 (GND1)	W - W-B	MG ECU communication clock signal	Power switch on (READY)	Pulse generation (Waveform 2)
   A83-14 (CLK+) ←→ A83-30 (GND1)	B - W-B	MG ECU communication clock signal	Power switch on (READY)	Pulse generation (Waveform 2)
   A83-16 (GI) ←→ A83-30 (GND1)	B - W-B	Camshaft position sensor signal	Power switch on (READY), with engine running	Pulse generation (Waveform 1)
   A83-17 (GCS) ←→ A83-6 (GCSG)	R - W	Generator resolver signal	Generator resolver running	Pulse generation (Waveform 6)
   A83-18 (GSN) ←→ A83-7 (GSNG)	Y - G	Generator resolver signal	Generator resolver running	Pulse generation (Waveform 6)
   A83-20 (GRF) ←→ A83-9 (GRFG)	L - B	Generator resolver signal	Generator resolver running	Pulse generation (Waveform 6)
   A83-22 (HTM-) ←→ A83-30 (GND1)	W - W-B	Communication signal from hybrid vehicle control ECU assembly to MG ECU	Power switch on (READY)	Pulse generation (Waveform 4)
   A83-23 (HTM+) ←→ A83-30 (GND1)	B - W-B	Communication signal from hybrid vehicle control ECU assembly to MG ECU	Power switch on (READY)	Pulse generation (Waveform 4)
   A83-24 (ILKO) ←→ A83-30 (GND1)	B - W-B	Interlock switch signal	Power switch on (IG), inverter cover, high voltage input cables and service plug grip installed correctly	Below 1 V
   			Power switch on (IG), inverter cover, high voltage input cables or service plug grip not installed	11 to 14 V
   A83-25 (HSDN) ←→ A83-30 (GND1)	B - W-B	MG shutdown signal	Power switch on (READY)	0 to 1 V
   A83-33 (REQ-) ←→ A83-30 (GND1)	W - W-B	MG ECU communication request signal	Power switch on (READY)	Pulse generation (Waveform 5)
   A83-34 (REQ+) ←→ A83-30 (GND1)	B - W-B	MG ECU communication request signal	Power switch on (READY)	Pulse generation (Waveform 5)
   A83-35 (ILKI) ←→ A83-30 (GND1)	W-B - W-B	Interlock switch signal	Power switch on (IG), inverter cover, high voltage input cables and service plug grip installed correctly	Below 1 V
   			Power switch on (IG), inverter cover, high voltage input cables or service plug grip not installed	11 to 14 V
   A83-38 (MCS) ←→ A83-27 (MCSG)	R - W	Motor resolver signal	Motor resolver running	Pulse generation (Waveform 7)
   A83-39 (MSN) ←→ A83-28 (MSNG)	Y - G	Motor resolver signal	Motor resolver running	Pulse generation (Waveform 7)
   A83-40 (MRF) ←→ A83-29 (MRFG)	L - B	Motor resolver signal	Motor resolver running	Pulse generation (Waveform 7)
   A84-1 (IGCT) ←→ A83-30 (GND1)	R - W-B	MG ECU power source	Power switch on (IG)	11 to 14 V
   A84-2 (IDH) ←→ A83-30 (GND1)	B - W-B	PTC heater prohibit signal	Power switch on (IG)	4 to 6 V
   A84-3 (S) ←→ A83-30 (GND1)	GR - W-B	Auxiliary battery voltage monitor	Power switch on (IG)	11 to 14 V
   A84-5 (NODD) ←→ A83-30 (GND1)	GR - W-B	DC/DC operation	DC/DC converter operating normally	5 to 7 V
   			DC/DC converter not operating normally	2 to 4 V
   			DC/DC converter operation prohibited	0.1 to 0.5 V
   A84-6 (VLO) ←→ A83-30 (GND1)	L - W-B	DC/DC operation monitor / voltage change signal	Power switch on (IG)	Pulse generation (Waveform 8)

   Inverter with Converter Assembly (for RHD)

   Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Standard Condition
   A26-2 (MTH-) ←→ A26-30 (GND1)	W - W-B	Communication signal from MG ECU to hybrid vehicle control ECU assembly	Power switch on (READY)	Pulse generation (Waveform 3)
   A26-3 (MTH+) ←→ A26-30 (GND1)	B - W-B	Communication signal from hybrid vehicle control ECU assembly to MG ECU	Power switch on (READY)	Pulse generation (Waveform 3)
   A26-10 (+B) ←→ A26-30 (GND1)	L - W-B	MG ECU power source	Power switch on (IG)	11 to 14 V
   A26-11 (+B2) ←→ A26-30 (GND1)	L - W-B	MG ECU power source	Power switch on (IG)	11 to 14 V
   A26-13 (CLK-) ←→ A26-30 (GND1)	W - W-B	MG ECU communication clock signal	Power switch on (READY)	Pulse generation (Waveform 2)
   A26-14 (CLK+) ←→ A26-30 (GND1)	B - W-B	MG ECU communication clock signal	Power switch on (READY)	Pulse generation (Waveform 2)
   A26-16 (GI) ←→ A26-30 (GND1)	B - W-B	Camshaft position sensor signal	Power switch on (READY), with engine running	Pulse generation (Waveform 1)
   A26-17 (GCS) ←→ A26-6 (GCSG)	R - W	Generator resolver signal	Generator resolver running	Pulse generation (Waveform 6)
   A26-18 (GSN) ←→ A26-7 (GSNG)	Y - G	Generator resolver signal	Generator resolver running	Pulse generation (Waveform 6)
   A26-20 (GRF) ←→ A26-9 (GRFG)	L - B	Generator resolver signal	Generator resolver running	Pulse generation (Waveform 6)
   A26-22 (HTM-) ←→ A26-30 (GND1)	W - W-B	Communication signal from hybrid vehicle control ECU assembly to MG ECU	Power switch on (READY)	Pulse generation (Waveform 4)
   A26-23 (HTM+) ←→ A26-30 (GND1)	B - W-B	Communication signal from hybrid vehicle control ECU assembly to MG ECU	Power switch on (READY)	Pulse generation (Waveform 4)
   A26-24 (ILKO) ←→ A26-30 (GND1)	B - W-B	Interlock switch signal	Power switch on (IG), inverter cover, high voltage input cables and service plug grip installed correctly	Below 1 V
   			Power switch on (IG), inverter cover, high voltage input cables or service plug grip not installed	11 to 14 V
   A26-25 (HSDN) ←→ A26-30 (GND1)	B - W-B	MG shutdown signal	Power switch on (READY)	0 to 1 V
   A26-33 (REQ-) ←→ A26-30 (GND1)	W - W-B	MG ECU communication request signal	Power switch on (READY)	Pulse generation (Waveform 5)
   A26-34 (REQ+) ←→ A26-30 (GND1)	B - W-B	MG ECU communication request signal	Power switch on (READY)	Pulse generation (Waveform 5)
   A26-35 (ILKI) ←→ A26-30 (GND1)	W-B - W-B	Interlock switch signal	Power switch on (IG), inverter cover, high voltage input cables and service plug grip installed correctly	Below 1 V
   			Power switch on (IG), inverter cover, high voltage input cables or service plug grip not installed	11 to 14 V
   A26-38 (MCS) ←→ A26-27 (MCSG)	R - W	Motor resolver signal	Motor resolver running	Pulse generation (Waveform 7)
   A26-39 (MSN) ←→ A26-28 (MSNG)	Y - G	Motor resolver signal	Motor resolver running	Pulse generation (Waveform 7)
   A26-40 (MRF) ←→ A26-29 (MRFG)	L - B	Motor resolver signal	Motor resolver running	Pulse generation (Waveform 7)
   A27-1 (IGCT) ←→ A26-30 (GND1)	R - W-B	MG ECU power source	Power switch on (IG)	11 to 14 V
   A27-2 (IDH) ←→ A26-30 (GND1)	B - W-B	PTC heater prohibit signal	Power switch on (IG)	4 to 6 V
   A27-3 (S) ←→ A26-30 (GND1)	GR - W-B	Auxiliary battery voltage monitor	Power switch on (IG)	11 to 14 V
   A27-5 (NODD) ←→ A26-30 (GND1)	GR - W-B	DC/DC operation	DC/DC converter operating normally	5 to 7 V
   			DC/DC converter not operating normally	2 to 4 V
   			DC/DC converter operation prohibited	0.1 to 0.5 V
   A27-6 (VLO) ←→ A26-30 (GND1)	L - W-B	DC/DC operation monitor / voltage change signal	Power switch on (IG)	Pulse generation (Waveform 8)

   Note

   Do not measure the voltage or waveform directly at the sealed side of the inverter with converter assembly connector. Doing so may damage the connector because the connector is waterproof.

2. Oscilloscope waveforms

   Tech Tips

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

   
   

   1. 

      Waveform 1 (camshaft position sensor signal)

      for LHD

      Item	Content
      Terminal	A83-16 (GI) ←→ A83-30 (GND1)
      Equipment Setting	5 V/DIV., 20 ms./DIV.
      Condition	Power switch on (READY), with engine running

      for RHD

      Item	Content
      Terminal	A26-16 (GI) ←→ A26-30 (GND1)
      Equipment Setting	5 V/DIV., 20 ms./DIV.
      Condition	Power switch on (READY), with engine running

      Tech Tips

      The pulse cycle becomes shorter as the engine speed increases.

   2. 

      Waveform 2 (MG ECU communication clock signal)

      for LHD

      Item	Content
      Terminal	CH1: A83-13 (CLK-) ←→ A83-30 (GND1) CH2: A83-14 (CLK+) ←→ A83-30 (GND1)
      Equipment Setting	1 V/DIV., 1 μs./DIV.
      Condition	Power switch on (READY)

      for RHD

      Item	Content
      Terminal	CH1: A26-13 (CLK-) ←→ A26-30 (GND1) CH2: A26-14 (CLK+) ←→ A26-30 (GND1)
      Equipment Setting	1 V/DIV., 1 μs./DIV.
      Condition	Power switch on (READY)

   3. 

      Waveform 3 (communication signal from MG ECU to hybrid vehicle control ECU assembly)

      for LHD

      Item	Content
      Terminal	CH1: A83-2 (MTH-) ←→ A83-30 (GND1) CH2: A83-3 (MTH+) ←→ A83-30 (GND1)
      Equipment Setting	1 V/DIV., 200 μs./DIV.
      Condition	Power switch on (READY)

      for RHD

      Item	Content
      Terminal	CH1: A26-2 (MTH-) ←→ A26-30 (GND1) CH2: A26-3 (MTH+) ←→ A26-30 (GND1)
      Equipment Setting	1 V/DIV., 200 μs./DIV.
      Condition	Power switch on (READY)

      Tech Tips

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

   4. 

      Waveform 4 (communication signal from hybrid vehicle control ECU assembly to MG ECU)

      for LHD

      Item	Content
      Terminal	CH1: A83-22 (HTM-) ←→ A83-30 (GND1) CH2: A83-23 (HTM+) ←→ A83-30 (GND1)
      Equipment Setting	1 V/DIV., 200 μs./DIV.
      Condition	Power switch on (READY)

      for RHD

      Item	Content
      Terminal	CH1: A26-22 (HTM-) ←→ A26-30 (GND1) CH2: A26-23 (HTM+) ←→ A26-30 (GND1)
      Equipment Setting	1 V/DIV., 200 μs./DIV.
      Condition	Power switch on (READY)

      Tech Tips

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

   5. 

      Waveform 5 (MG ECU communication request signal)

      for LHD

      Item	Content
      Terminal	CH1: A83-33 (REQ-) ←→ A83-30 (GND1) CH2: A83-34 (REQ+) ←→ A83-30 (GND1)
      Equipment Setting	1 V/DIV., 1 ms./DIV.
      Condition	Power switch on (READY)

      for RHD

      Item	Content
      Terminal	CH1: A26-33 (REQ-) ←→ A26-30 (GND1) CH2: A26-34 (REQ+) ←→ A26-30 (GND1)
      Equipment Setting	1 V/DIV., 1 ms./DIV.
      Condition	Power switch on (READY)

   6. 

      Waveform 6 (generator resolver signal)

      for LHD

      Item	Content
      Terminal	CH1: A83-20 (GRF) ←→ A83-9 (GRFG) CH2: A83-18 (GSN) ←→ A83-7 (GSNG) CH3: A83-17 (GCS) ←→ A83-6 (GCSG)
      Equipment Setting	CH1: 10 V/DIV., 1 ms./DIV. CH2, 3: 5 V/DIV., 1 ms./DIV.
      Condition	Generator resolver running

      for RHD

      Item	Content
      Terminal	CH1: A26-20 (GRF) ←→ A26-9 (GRFG) CH2: A26-18 (GSN) ←→ A26-7 (GSNG) CH3: A26-17 (GCS) ←→ A26-6 (GCSG)
      Equipment Setting	CH1: 10 V/DIV., 1 ms./DIV. CH2, 3: 5 V/DIV., 1 ms./DIV.
      Condition	Generator resolver running

      Tech Tips

      Pulse cycle A becomes shorter as the rotor speed increases.

   7. 

      Waveform 7 (motor resolver signal)

      for LHD

      Item	Content
      Terminal	CH1: A83-40 (MRF) ←→ A83-29 (MRFG) CH2: A83-39 (MSN) ←→ A83-28 (MSNG) CH3: A83-38 (MCS) ←→ A83-27 (MCSG)
      Equipment Setting	CH1: 10 V/DIV., 1 ms./DIV. CH2, 3: 5 V/DIV., 1 ms./DIV.
      Condition	Motor resolver running

      for RHD

      Item	Content
      Terminal	CH1: A26-40 (MRF) ←→ A26-29 (MRFG) CH2: A26-39 (MSN) ←→ A26-28 (MSNG) CH3: A26-38 (MCS) ←→ A26-27 (MCSG)
      Equipment Setting	CH1: 10 V/DIV., 1 ms./DIV. CH2, 3: 5 V/DIV., 1 ms./DIV.
      Condition	Motor resolver running

      Tech Tips

      Pulse cycle A becomes shorter as the rotor speed increases.

   8. 

      Waveform 8 (DC/DC operation monitor / voltage change signal)

      for LHD

      Item	Content
      Terminal	A84-6 (VLO) ←→ A83-30 (GND1)
      Equipment Setting	5 V/DIV., 50 ms./DIV.
      Condition	Power switch on (IG)

      for RHD

      Item	Content
      Terminal	A27-6 (VLO) ←→ A26-30 (GND1)
      Equipment Setting	5 V/DIV., 50 ms./DIV.
      Condition	Power switch on (IG)

      Tech Tips

      The cycle will vary depending on the specified voltage of the DC/DC converter.