| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM100000001T55U |
| Model Year Start: 2021 | Model: Camry HV | Prod Date Range: [10/2020 - ] |
| Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): TERMINALS OF ECU; 2021 - 2024 MY Camry HV [10/2020 - ] | ||
TERMINALS OF ECU
HYBRID VEHICLE CONTROL ECU ASSEMBLY
|
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Input/Output |
Condition |
Specified Condition |
|---|---|---|---|---|---|
|
A28-1 (+B2) - K69-6 (E1) |
W - W-B |
Power source |
Input |
Power switch on (IG) |
11 to 14 V |
|
A28-3 (IG2) - K69-6 (E1) |
B - W-B |
Power source |
Input |
Power switch on (IG) |
11 to 14 V |
|
A28-8 (VCP2) - A28-18 (EPA2) |
SB - P |
Accelerator pedal sensor assembly power source (for VPA2) |
Output |
Power switch on (IG) |
4.5 to 5.5 V |
|
A28-9 (VCPA) - A28-20 (EPA) |
BE - L |
Accelerator pedal sensor assembly power source (for VPA) |
Output |
Power switch on (IG) |
4.5 to 5.5 V |
|
A28-13 (IWP) - K69-6 (E1) |
L - W-B |
Inverter water pump with motor assembly signal |
Output |
Power switch on (READY) |
Pulse generation (Waveform 1) |
|
A28-14 (NIWP) - K69-6 (E1) |
W - W-B |
Inverter water pump with motor assembly signal |
Input |
Power switch on (READY) |
Pulse generation (Waveform 1) |
|
A28-15 (STP) - K69-6 (E1) |
LA-G - W-B |
Stop light switch |
Input |
Brake pedal depressed |
11 to 14 V |
|
Brake pedal released |
0 to 1.5 V |
||||
|
A28-17 (LIN3) - K69-6 (E1) |
L - W-B |
LIN communication signal (A/C inverter, auxiliary battery state sensor) |
Input/Output |
Power switch on (READY) |
Pulse generation |
|
A28-21 (TTA) - A28-31 (ETTA) |
GR - SB |
Transmission fluid temperature sensor |
Input |
Power switch on (IG), temperature 25°C (77°F) |
3.6 to 4.6 V |
|
Power switch on (IG), temperature 60°C (140°F) |
2.2 to 3.2 V |
||||
|
A28-22 (ACCI) - K69-6 (E1) |
P - W-B |
ACC relay |
Input |
Power switch on (ACC) |
11 to 14 V |
|
A28-24 (MMT) - A28-23 (MMTG) |
G - R |
Motor temperature sensor |
Input |
Power switch on (IG), temperature 25°C (77°F) |
3.6 to 4.6 V |
|
Power switch on (IG), temperature 60°C (140°F) |
2.2 to 3.2 V |
||||
|
A28-26 (GMT) - A28-27 (GMTG) |
P - V |
Generator temperature sensor |
Input |
Power switch on (IG), temperature 25°C (77°F) |
3.6 to 4.6 V |
|
Power switch on (IG), temperature 60°C (140°F) |
2.2 to 3.2 V |
||||
|
A28-28 (VPA2) - A28-18 (EPA2) |
GR - P |
Accelerator pedal sensor assembly (for accelerator pedal position detection) |
Input |
Power switch on (IG), accelerator pedal released |
1.0 to 2.2 V |
|
Power switch on (IG), engine stopped, shift lever in P, accelerator pedal fully depressed |
3.4 to 5.3 V |
||||
|
A28-30 (VPA) - A28-20 (EPA) |
G - L |
Accelerator pedal sensor assembly (for accelerator pedal position detection) |
Input |
Power switch on (IG), accelerator pedal released |
0.4 to 1.4 V |
|
Power switch on (IG), engine stopped, shift lever in P, accelerator pedal fully depressed |
2.6 to 4.5 V |
||||
|
A29-1 (PSFT) - K69-6 (E1) |
L - W-B |
Shift lever position sensor power source |
Output |
Power switch on (ACC) |
6.0 to 14 V |
|
A29-2 (BL) - K69-6 (E1) |
BE - W-B |
Back-up light |
Output |
Power switch on (IG), shift lever in R |
11 to 14 V |
|
A29-4 (+B1) - K69-6 (E1) |
R - W-B |
Power source |
Input |
Power switch on (IG) |
11 to 14 V |
|
A29-6 (MREL) - K69-6 (E1) |
G - W-B |
Main relay |
Output |
Power switch on (IG) |
11 to 14 V |
|
A29-7 (IGB) - K69-6 (E1) |
B - W-B |
Power source |
Input |
Power switch on (IG) |
8.5 to 14 V |
|
A29-12 (HSDN) - K69-6 (E1) |
W - W-B |
MG ECU shutdown signal |
Output |
Power switch on (READY) |
0 to 1.5 V |
|
A29-13 (ILK) - K69-6 (E1) |
GR - W-B |
Interlock switch |
Input |
Power switch on (IG), service plug grip installed correctly |
0 to 1.5 V |
|
Power switch on (IG), service plug grip not installed |
11 to 14 V |
||||
|
A29-14 (DB2) - K69-6 (E1) |
V - W-B |
Shift lever position signal |
Input |
Power switch on (IG), shift lever in D or S |
6.0 to 14 V |
|
Power switch on (IG), shift lever not in D or S |
0 to 1.5 V |
||||
|
A29-15 (R) - K69-6 (E1) |
LG - W-B |
Shift lever position signal |
Input |
Power switch on (IG), shift lever in R |
6.0 to 14 V |
|
Power switch on (IG), shift lever not in R |
0 to 1.5 V |
||||
|
A29-17 (PR) - K69-6 (E1) |
R - W-B |
Shift lever position signal |
Input |
Power switch on (IG), shift lever in P or R |
6.0 to 14 V |
|
Power switch on (IG), shift lever not in P or R |
0 to 1.5 V |
||||
|
A29-20 (N) - K69-6 (E1) |
G - W-B |
Shift lever position signal |
Input |
Power switch on (IG), shift lever in N |
6.0 to 14 V |
|
Power switch on (IG), shift lever not in N |
0 to 1.5 V |
||||
|
A29-21 (P) - K69-6 (E1) |
BE - W-B |
Shift lever position signal |
Input |
Power switch on (IG), shift lever in P |
6.0 to 14 V |
|
Power switch on (IG), shift lever not in P |
0 to 1.5 V |
||||
|
A29-26 (DB1) - K69-6 (E1) |
W - W-B |
Shift lever position signal |
Input |
Power switch on (IG), shift lever in D or S |
6.0 to 14 V |
|
Power switch on (IG), shift lever not in D or S |
0 to 1.5 V |
||||
|
A29-28 (ST1-) - K69-6 (E1) |
LG - W-B |
Stop light switch signal |
Input |
Power switch on (IG), brake pedal depressed |
0 to 1.5 V |
|
Power switch on (IG), brake pedal released |
11 to 14 V |
||||
|
A29-30 (HMCL) - K69-6 (E1) |
W - W-B |
MG ECU communication request signal |
Input/Output |
Power switch on (IG) |
Pulse generation (Waveform 2) |
|
A29-31 (HMCH) - K69-6 (E1) |
B - W-B |
MG ECU communication request signal |
Input/Output |
Power switch on (IG) |
Pulse generation (Waveform 2) |
|
A29-34 (PNB) - K69-6 (E1) |
B - W-B |
Shift lever position signal |
Input |
Power switch on (IG), shift lever in P or N |
6.0 to 14 V |
|
K69-1 (SMRG) - K69-5 (E01) |
G - W-B |
System main relay operation signal |
Output |
Power switch on (IG) → Power switch on (READY) |
Pulse generation (Waveform 3) |
|
K69-3 (SMRP) - K69-5 (E01) |
W - W-B |
System main relay operation signal |
Output |
Power switch on (IG) → Power switch on (READY) |
Pulse generation (Waveform 3) |
|
K69-4 (SMRB) - K69-5 (E01) |
GR - W-B |
System main relay operation signal |
Output |
Power switch on (IG) → Power switch on (READY) |
Pulse generation (Waveform 3) |
|
K69-8 (INDR) - K69-6 (E1) |
P - W-B |
Shift position indicator signal |
Input |
Power switch on (IG), shift lever in R |
0 to 3.2 V |
|
Power switch on (IG), shift lever not in R |
11 to 14 V |
||||
|
K69-9 (ST2) - K69-6 (E1) |
L - W-B |
Starter signal |
Input |
Power switch on (IG) |
0 to 1.5 V |
|
K69-10 (NORM) ←→ K69-6(E1) |
LG - W-B |
Normal mode switch (electric parking brake switch assembly) signal |
Input |
Power switch on (IG), normal mode switch (electric parking brake switch assembly) not operated |
11 to 14 V |
|
Power switch on (IG), normal mode switch (electric parking brake switch assembly) operated |
0 to 1.5 V |
||||
|
K69-32 (BTH+) - K69-6 (E1) |
LG - W-B |
Communication signal from battery voltage sensor to hybrid vehicle ECU assembly |
Input |
Power switch on (IG) |
Pulse generation (Waveform 4) |
|
K69-33 (BTH-) - K69-6 (E1) |
W - W-B |
Communication signal from battery voltage sensor to hybrid vehicle ECU assembly |
Input |
Power switch on (IG) |
Pulse generation (Waveform 4) |
|
K70-1 (M) - K69-6 (E1) |
B - W-B |
Transmission control |
Input |
Power switch on (IG), shift lever in S |
11 to 14 V |
|
Power switch on (IG), shift lever not in S |
0 to 1.5 V |
||||
|
K70-3 (BATT) - K69-6 (E1) |
B - W-B |
Constant power source |
Input |
Power switch on (IG) |
11 to 14 V |
|
Power switch on (READY) |
11 to 15.5 V |
||||
|
K70-6 (SPRT) - K69-6 (E1) |
R - W-B |
Sport mode switch (electric parking brake switch assembly) signal |
Input |
Power switch on (IG), sport mode switch (electric parking brake switch assembly) not operated |
11 to 14 V |
|
Power switch on (IG), sport mode switch (electric parking brake switch assembly) operated |
0 to 1.5 V |
||||
|
K70-7 (PLKC) - K69-6 (E1) |
L - W-B |
Shift lock release request signal |
Output |
Power switch on (READY), brake pedal depressed |
11 to 14 V |
|
Power switch on (READY), brake pedal released |
0 to 1.5 V |
||||
|
K70-8 (SFTD) - K69-6 (E1) |
W - W-B*1 G - W-B*2 |
Transmission control |
Input |
Power switch on (IG), shift lever in S |
11 to 14 V |
|
Power switch on (IG), shift lever in (-) or shift paddle switch LH (-) operated |
0 to 1.5 V |
||||
|
K70-9 (SFTU) - K69-6 (E1) |
LG - W-B*1 L - W-B*2 |
Transmission control |
Input |
Power switch on (IG), shift lever in S |
11 to 14 V |
|
Power switch on (IG), shift lever in (+) or shift paddle switch RH (+) operated |
0 to 1.5 V |
||||
|
K70-10 (INDM) - K69-6 (E1) |
GR - W-B |
Shift position indicator signal |
Input |
Power switch on (IG), shift lever in S |
0 to 3.2 V |
|
Power switch on (IG), shift lever not in S |
11 to 14 V |
||||
|
K70-11 (INDD) - K69-6 (E1) |
W - W-B |
Shift position indicator signal |
Input |
Power switch on (IG), shift lever in D |
0 to 3.2 V |
|
Power switch on (IG), shift lever not in D |
11 to 14 V |
||||
|
K70-12 (INDN) - K69-6 (E1) |
R - W-B |
Shift position indicator signal |
Input |
Power switch on (IG), shift lever in N |
0 to 3.2 V |
|
Power switch on (IG), shift lever not in N |
11 to 14 V |
||||
|
K70-13 (INDP) - K69-6 (E1) |
L - W-B |
Shift position indicator signal |
Input |
Power switch on (IG), shift lever in P |
0 to 3.2 V |
|
Power switch on (IG), shift lever not in P |
11 to 14 V |
||||
|
K70-14 (ABFS) - K69-6 (E1) |
B - W-B |
Airbag activation signal |
Input |
Power switch on (READY) |
Pulse generation (Waveform 5) |
|
K70-15 (EVSW) - K69-6 (E1) |
G - W-B |
EV drive mode switch (electric parking brake switch assembly) signal |
Input |
Power switch on (IG), EV drive mode switch (electric parking brake switch assembly) not operated |
11 to 14 V |
|
Power switch on (IG), EV drive mode switch (electric parking brake switch assembly) operated |
0 to 1.5 V |
||||
|
K70-24 (CA1L) - K69-6 (E1) |
W - W-B |
CAN communication signal |
Input/Output |
Power switch on (IG) |
Pulse generation (Waveform 6) |
|
K70-25 (CA1H) - K69-6 (E1) |
L - W-B |
CAN communication signal |
Input/Output |
Power switch on (IG) |
Pulse generation (Waveform 6) |
|
K70-29 (SI0) - K69-6 (E1) |
L - W-B |
HV battery cooling blower assembly operation signal |
Output |
Cooling fans operating |
Pulse generation (Waveform 7) |
|
Cooling fans not operating |
4.5 to 5.5 V |
||||
|
K70-30 (CA3N) - K69-6 (E1) |
W - W-B |
CAN communication signal |
Input/Output |
Power switch on (IG) |
Pulse generation (Waveform 8) |
|
K70-31 (CA3P) - K69-6 (E1) |
V - W-B |
CAN communication signal |
Input/Output |
Power switch on (IG) |
Pulse generation (Waveform 8) |
*1: w/ Shift Paddle Switch
*2: w/o Shift Paddle Switch
(a) Oscilloscope waveforms
HINT:
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: A28-13 (IWP) - K69-6 (E1) CH2: A28-14 (NIWP) - K69-6 (E1) |
|
Equipment Setting |
5 V/DIV., 20 ms./DIV. |
|
Condition |
Power switch on (READY) |
HINT:
The duty of the IWP signal and the frequency of the NIWP signal change according to the coolant (for inverter) temperature.
(2) Waveform 2 (MG ECU communication request signal)
|
Item |
Content |
|---|---|
|
Terminal |
CH1: A29-31 (HMCH) - K69-6 (E1) CH2: A29-30 (HMCL) - K69-6 (E1) |
|
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).
(3) Waveform 3 (System main relay operation signal)
|
Item |
Content |
|---|---|
|
Terminal |
CH1: K69-3 (SMRP) - K69-5 (E01) CH2: K69-4 (SMRB) - K69-5 (E01) CH3: K69-1 (SMRG) - K69-5 (E01) |
|
Equipment Setting |
10 V/DIV., 200 ms./DIV. |
|
Condition |
Power switch on (IG) → Power switch on (READY) |
(4) Waveform 4 (Communication signal from battery voltage sensor to hybrid vehicle control ECU assembly)
|
Item |
Content |
|---|---|
|
Terminal |
CH1: K69-32 (BTH+) - K69-6 (E1) CH2: K69-33 (BTH-) - K69-6 (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).
(5) Waveform 5 (Airbag activation signal)
|
Item |
Content |
|---|---|
|
Terminal |
K70-14 (ABFS) - K69-6 (E1) |
|
Equipment Setting |
5 V/DIV., 150 ms./DIV. |
|
Condition |
Power switch on (READY) |
(6) Waveform 6 (CAN communication signal)
|
Item |
Content |
|---|---|
|
Terminal |
CH1: K70-25 (CA1H) - K69-6 (E1) CH2: K70-24 (CA1L) - K69-6 (E1) |
|
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).
(7) Waveform 7 (HV battery blower fan operation signal)
|
Item |
Content |
|---|---|
|
Terminal |
K70-29 (SI0) - K69-6 (E1) |
|
Equipment Setting |
10 V/DIV., 1 ms./DIV. |
|
Condition |
Cooling fans operating |
HINT:
The waveform will vary with the operating speed of the battery cooling blower assembly.
(8) Waveform 8 (CAN communication signal)
|
Item |
Content |
|---|---|
|
Terminal |
CH1: K70-31 (CA3P) - K69-6 (E1) CH2: K70-30 (CA3N) - K69-6 (E1) |
|
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).
BATTERY VOLTAGE SENSOR
|
Terminal No. (Symbol) |
Wiring Color |
Input/Output |
Terminal Description |
Condition |
Specified Condition |
|---|---|---|---|---|---|
|
z17-1 (TC0) - z17-7 (GC0) |
G - G |
IN |
Intake air temperature sensor |
Power switch on (IG), HV battery intake air temperature: -40 to 90°C (-40 to 194°F) |
4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
|
z17-2 (TB2) - z17-8 (GB2) |
R - R |
IN |
Battery temperature sensor 2 |
Power switch on (IG), HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
|
z17-3 (TB1) - z17-9 (GB1) |
W - W |
IN |
Battery temperature sensor 1 |
Power switch on (IG), HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
|
z17-4 (TB0) - z17-10 (GB0) |
L - L |
IN |
Battery temperature sensor 0 |
Power switch on (IG), HV battery temperature: -40 to 90°C (-40 to 194°F) |
4.8 (-40°C (-40°F)) to 1.0 V (90°C (194°F)) |
|
z17-5 (IB0) - z17-12 (GIB) |
Y - B |
IN |
Battery current sensor |
Power switch on (IG) |
0.5 to 4.5 V |
|
z17-6 (VIB) - z17-12 (GIB) |
BR - B |
OUT |
Power source for battery current sensor |
Power switch on (IG) |
4.5 to 5.5 V |
|
R21-1 (IGCT) - R21-5 (GND) |
BE - W-B |
IN |
Control signal |
Power switch on (IG) |
11 to 14 V |
|
R21-2 (BTH+) - R21-5 (GND) |
GR - W-B |
OUT |
Serial communication |
Power switch on (IG) |
Pulse generation (waveform 1) |
|
R21-3 (BTH-) - R21-5 (GND) |
W - W-B |
OUT |
Serial communication |
Power switch on (IG) |
Pulse generation (waveform 2) |
|
R21-5 (GND) - Body ground |
W-B |
- |
Ground |
Always (continuity check) |
Below 1 Ω |
|
R21-8 (FP0) - R21-5 (GND) |
B - W-B |
IN |
Battery cooling blower monitor signal |
Battery cooling blower assembly stopped |
0 Hz |
|
Battery cooling blower assembly operating (Active Test of cooling fan being performed) |
Pulse generation (waveform 3) |
(a) Oscilloscope waveforms
HINT:
Oscilloscope waveform samples are provided here for informational purposes. Noise and fluttering waveforms have been omitted.
(1) Waveform 1 (Serial communication)
|
Item |
Content |
|---|---|
|
Terminal |
R21-2 (BTH+) - R21-5 (GND) |
|
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).
(2) Waveform 2 (Serial communication)
|
Item |
Content |
|---|---|
|
Terminal |
R21-3 (BTH-) - R21-5 (GND) |
|
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).
(3) Waveform 3 (Battery cooling blower monitor signal)
|
Item |
Content |
|---|---|
|
Terminal |
R21-8 (FP0) - R21-5 (GND) |
|
Equipment Setting |
2 V/DIV., 2 ms/DIV. |
|
Condition |
Battery cooling blower assembly operating (Active Test of cooling fan being performed) |
HINT:
The frequency of the waveform will vary with the operating speed of the battery cooling blower assembly.
|
|