Terminals Of Ecu [08/2020 - ]
WARNING: This page is about a different car, the 2022 Toyota Avalon and 2021 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
*1 Inverter with Converter Assembly HINT:
Since the inverter with converter assembly uses waterproof connectors, the voltage and waveforms cannot be inspected directly. Standard voltage readings and waveforms are indicated for reference only.
INVERTER WITH CONVERTER ASSEMBLYTerminal No.
(Symbol)Wiring Color Input/Output Terminal Description Condition Standard Condition A42-1 (CANH) - A42-24 (GND1) V - W-B Input/Output CAN communication signal Power switch on (IG) Pulse generation
(Waveform 1)A42-5 (+B2) - A42-24 (GND1) GR - W-B Input Motor generator control ECU (MG ECU) power source Power switch on (IG) 11 to 14 V A42-6 (+B) - A42-24 (GND1) W - W-B Input Motor generator control ECU (MG ECU) power source Power switch on (IG) 11 to 14 V A42-7 (CANL) - A42-24 (GND1) W - W-B Input/Output CAN communication signal Power switch on (IG) Pulse generation
(Waveform 1)A42-10 (GI) - A42-24 (GND1) W - W-B Input Camshaft position sensor signal Power switch on (READY), engine running Pulse generation
(Waveform 2)A42-12 (IGCT) - A42-24 (GND1) BE - W-B Input Motor generator control ECU (MG ECU) power source Power switch on (IG) 11 to 14 V A42-17 (NE) - A42-24 (GND1) B - W-B Input Crankshaft position sensor signal Power switch on (READY), engine running Pulse generation
(Waveform 3)A42-19 (HMCL) - A42-24 (GND1) W - W-B Input/Output Communication signal Power switch on (IG) Pulse generation
(Waveform 4)A42-20 (HMCH) - A42-24 (GND1) B - W-B Input/Output Communication signal Power switch on (IG) Pulse generation
(Waveform 4)A42-22 (HSDN) - A42-24 (GND1) W - W-B Input MG shutdown signal Power switch on (READY) 0 to 1 V C61-1 (MSN) - C61-2 (MSNG) G - Y Input Motor resolver signal Motor resolver running Pulse generation
(Waveform 5)C61-3 (MCSG) - C61-4 (MCS) B - L Input Motor resolver signal Motor resolver running Pulse generation
(Waveform 5)C61-5 (MRF) - C61-6 (MRFG) W - R Output Motor resolver reference signal Motor resolver running Pulse generation
(Waveform 5)C61-8 (GRF) - C61-9 (GRFG) SB - V Output Generator resolver reference signal Generator resolver running Pulse generation
(Waveform 6)C61-10 (GSN) - C61-11 (GSNG) GR - P Input Generator resolver signal Generator resolver running Pulse generation
(Waveform 6)C61-12 (GCSG) - C61-13 (GCS) BR - LG Input Generator resolver signal Generator resolver running Pulse generation
(Waveform 6)NOTE:Do not measure the voltage or waveform on the sealed side of the inverter with converter assembly connector. Doing so may damage the connector because the connector is waterproof.
- Oscilloscope waveforms
HINT:
Oscilloscope waveforms shown in the illustrations are examples for reference only. Noise, chattering, etc. are not shown.
- Waveform 1 (CAN communication signal)
Item Content Terminal CH1: A42-1 (CANH) - A42-24 (GND1)
CH2: A42-7 (CANL) - A42-24 (GND1)Equipment Setting 1 V/DIV., 50 μs./DIV. Condition Power switch on (IG) - Waveform 2 (camshaft position sensor signal)
Item Content Terminal A42-10 (GI) - A42-24 (GND1) Equipment Setting 5 V/DIV., 20 ms./DIV. Condition Power switch on (READY), engine running HINT:
The wavelength becomes shorter as the engine speed increases.
- Waveform 3 (crankshaft position sensor signal)
Item Content Terminal A42-17 (NE) - A42-24 (GND1) Equipment Setting 5 V/DIV., 20 ms./DIV. Condition Power switch on (READY), engine running HINT:
The wavelength becomes shorter as the engine speed increases.
- Waveform 4 (communication signal)
Item Content Terminal CH1: A42-19 (HMCL) - A42-24 (GND1)
CH2: A42-20 (HMCH) - A42-24 (GND1)Equipment Setting 1 V/DIV., 50 μs./DIV. Condition Power switch on (IG) HINT:
The waveform will vary depending on the content of the digital communication (digital signal).
- Waveform 5 (motor resolver signal)
Item Content Terminal CH1: C61-5 (MRF) - C61-6 (MRFG)
CH2: C61-1 (MSN) - C61-2 (MSNG)
CH3: C61-4 (MCS) - C61-3 (MCSG)Equipment Setting CH1: 10 V/DIV., 1 ms./DIV.
CH2: 5 V/DIV., 1 ms./DIV.
CH3: 5 V/DIV., 1 ms./DIV.Condition Motor resolver running HINT:
The width indicated by (A) becomes shorter as the rotor speed increases.
- Waveform 6 (generator resolver signal)
Item Content Terminal CH1: C61-8 (GRF) - C61-9 (GRFG)
CH2: C61-10 (GSN) - C61-11 (GSNG)
CH3: C61-13 (GCS) - C61-12 (GCSG)Equipment Setting CH1: 10 V/DIV., 1 ms./DIV.
CH2: 5 V/DIV., 1 ms./DIV.
CH3: 5 V/DIV., 1 ms./DIV.Condition Generator resolver running HINT:
The width indicated by (A) becomes shorter as the rotor speed increases.
- Waveform 1 (CAN communication signal)