When performing an inspection, make sure that "ACC Customize" is set to "ON" using the multi-display.
When "ACC Customize" is set to "ON" (ACC supply power enabled), the certification ECU (smart key ECU assembly) controls the ACC relay on and off. When "ACC Customize" is set to "OFF" (ACC supply power disabled), the certification ECU (smart key ECU assembly) and radio and display receiver assembly control the ACC relay on and off.
Therefore, inspection conditions and results may differ depending on whether "ACC customize" is set to ON or OFF when inspecting ACC related terminals.
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Disconnect the I197 and I196 certification ECU (smart key ECU assembly) connectors.
Measure the resistance and voltage according to the value(s) in the table below.
Measure the values on the wire harness side with the connector disconnected.
| Tester Connection | Terminal Description | Condition | Specified Condition | Related Data List Item/DTC |
|---|---|---|---|---|
| I197-21 (STP1) - Body ground | Stop light switch signal | Brake pedal depressed → Brake pedal released | 9 V or higher → 1 V or less | Power Source Control
Stop Light Switch |
| I196-6 (+B) - I196-29 (E) | Power source | Ignition switch off | 11 to 14 V | - |
| I196-14 (P) - I196-29 (E) | P position signal | Shift position in P → Shift position not in P | 30 kΩ or higher → Below 200 Ω | Power Source Control
Shift P Signal |
| I197-22 (CUTB) - Body ground | Dark current cut pin* | Ignition switch off | 11 to 14 V | - |
| I196-29 (E) - Body ground | GND | Always | Below 1 Ω | - |
| I196-11 (SLP) - I196-29 (E) | GND | Always | Below 1 Ω | - |
| I196-23 (SSW3) - Body ground | SSW3 contact signal | Power switch pushed → Power switch not pushed | Below 15 Ω → 10 kΩ or higher | Power Source Control
Push Start Switch 3 |
| I196-27 (SSW2) - Body ground | SSW2 contact signal | Power switch pushed → Power switch not pushed | Below 15 Ω → 10 kΩ or higher | Power Source Control
Push Start Switch 2 |
| I196-19 (SSW1) - Body ground | SSW1 contact signal | Power switch pushed → Power switch not pushed | Below 15 Ω → 10 kΩ or higher | Power Source Control
Push Start Switch 1 |
*: In order to prevent the vehicle auxiliary battery from being depleted when the vehicle is shipped long distances, a fuse that cuts unnecessary electrical load while the vehicle is being shipped is installed in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle auxiliary battery and terminal CUTB is removed and the circuit is open, the certification ECU (smart key ECU assembly) changes to a certain control mode (example: the transmission of radio waves every 0.25 seconds, which form the detection area, stops).
Connect the I197 and I196 certification ECU (smart key ECU assembly) connectors.
Measure the voltage and resistance, and check for pulses according to the value(s) in the table below.
| Tester Connection | Terminal Description | Condition | Specified Condition | Related Data List Item/DTC |
|---|---|---|---|---|
| I196-8 (LIN) - I196-29 (E) | LIN communication line | Ignition switch ON | Pulse generation | - |
| I196-14 (P) - I196-29 (E) | P position signal | Shift position in P → Shift position not in P | 9 V or higher → 2.76 V or less | Power Source Control
Shift P Signal |
| I196-23 (SSW3) - I196-29 (E) | SSW3 contact signal | Power switch not pushed → Power switch pushed | 9 V or higher → 1 V or less | Power Source Control
Push Start Switch 3 |
| I196-27 (SSW2) - I196-29 (E) | SSW2 contact signal | Power switch not pushed → Power switch pushed | 9 V or higher → 1 V or less | Power Source Control
Push Start Switch 2 |
| I196-19 (SSW1) - I196-29 (E) | SSW1 contact signal | Power switch not pushed → Power switch pushed | 9 V or higher → 1 V or less | Power Source Control
Push Start Switch 1 |
| I196-21 (ACCD) - I196-29 (E) | ACC signal | Ignition switch off → Ignition switch ACC | 1 V or less → 8.5 V or higher | Power Source Control
ACC Relay Monitor |
| I197-11 (IGRD) - I196-29 (E) | IG signal | Ignition switch off → Ignition switch ON | 1 V or less → 9 V or higher | Power Source Control
IGR Relay Circuit (Outside) Monitor |
| I197-24 (IGPD) - I196-29 (E) | IG signal | Ignition switch off → Ignition switch ON | 1 V or less → 9 V or higher | Power Source Control
IGP Relay Circuit (Outside) Monitor |
| I197-13 (SPD) - I196-29 (E) | Vehicle speed signal | Vehicle being driven at approx. 5 km/h (3 mph) | Pulse generation
(See waveform 1) |
Power Source Control
Vehicle Running Condition (Line) |
| I197-2 (ST2) - I196-29 (E) | STSW signal | With the brake pedal depressed, the power switch is pressed and held → After approx. 3 sec. has elapsed, the power switch is released | 8.5 V or higher → 1 V or less | - |
| I196-4 (CLG5) - I196-29 (E) | Output to No. 1 indoor electrical key antenna assembly (front floor) | Procedure:
1.
Ignition switch off 2.
Electrical key transmitter sub-assembly not inside vehicle 3.
Within 30 seconds of closing any door |
Pulse generation
(See waveform 2) |
- |
| I196-5 (CG5B) - I196-29 (E) | Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal) | Procedure:
1.
Ignition switch off 2.
Electrical key transmitter sub-assembly not inside vehicle 3.
Within 30 seconds of closing any door |
Pulse generation
(See waveform 2) |
- |
| I196-30 (AGND) - Body ground | Transponder key amplifier ground | Always | Below 1 Ω | - |
| I196-12 (ANT1) - I196-30 (AGND) | Signal input / output from transponder key coil (transponder key coil built into power switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of power switch pressed | Pulse generation
(See waveform 3) |
Entry&Start
Encrypt Code Difference |
| I196-13 (ANT2) - I196-30 (AGND) | Signal input / output from transponder key coil (transponder key coil built into power switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of power switch pressed | Pulse generation
(See waveform 3) |
|
| I196-25 (IND) - I196-29 (E) | Security indicator output | Ignition switch off → ON | Pulse generation → Below 2 V | - |
| O174-20 (WCSW) - I196-29 (E)* | Wireless charger system stop signal | Procedure:
1.
Ignition switch off 2.
Electrical key transmitter sub-assembly inside vehicle 3.
Ignition switch off → ACC or ON |
Below 1 V → 4.5 to 6 V
(For 1 second after ignition switch to ACC or ON) |
- |
*: w/ Wireless Charger System
Using an oscilloscope, check the waveform of the ECU.
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
Waveform 1
| Item | Content |
|---|---|
| Tester Connection | I197-13 (SPD) - I196-29 (E) |
| Tool Setting | 5 V/DIV., 20 ms./DIV. |
| Condition | Vehicle being driven at approx. 5 km/h (3 mph) |
The wavelength becomes shorter as the vehicle speed increases.
| *a | For 30 seconds after any door closed |
| *b | After 30 seconds or more have elapsed since any door closed |
Waveform 2
| Item | Content |
|---|---|
| Tester Connection | I196-4 (CLG5) - I196-29 (E)
I196-5 (CG5B) - I196-29 (E) |
| Tool Setting | 5 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
1.
Ignition switch off 2.
Electrical key transmitter sub-assembly not inside vehicle 3.
Within 30 seconds of closing any door |
Waveform 3
| Item | Content |
|---|---|
| Tester Connection | I196-12 (ANT1) - I196-30 (AGND)
I196-13 (ANT2) - I196-30 (AGND) |
| Tool Setting | 5 V/DIV., 200 ms./DIV. |
| Condition | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of power switch pressed |
CHECK ID CODE BOX (IMMOBILISER CODE ECU)
Disconnect the I20 ID code box (immobiliser code ECU) connector.
Measure the voltage and resistance according to the value(s) in the table below.
Measure the values on the wire harness side with the connector disconnected.
| Tester Connection | Terminal Description | Condition | Specified Condition | Related Data List Item |
|---|---|---|---|---|
| I20-1 (+B) - Body ground | Power source | Ignition switch off | 11 to 14 V | - |
| I20-5 (GND) - Body ground | Ground | Always | Below 1 Ω |
Reconnect the I20 ID code box (immobiliser code ECU) connector.
Measure the voltage and check for pulses according to the value(s) in the table below.
| Tester Connection | Terminal Description | Condition | Specified Condition | Related Data List Item |
|---|---|---|---|---|
| I20-3 (EFII) - I20-5 (GND) | EFI communication input
(Signal input from hybrid vehicle control ECU to ID code box (immobiliser code ECU)) |
Ignition switch off | 11 to 14 V | Entry&Start
·
EFI Code Receive ·
Start Request |
| I20-3 (EFII) - I20-5 (GND) | EFI communication input
(Signal input from hybrid vehicle control ECU to ID code box (immobiliser code ECU)) |
Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery | Pulse generation
(See waveform 1) |
|
| I20-4 (EFIO) - I20-5 (GND) | EFI communication output
(Signal output from ID code box (immobiliser code ECU) to hybrid vehicle control ECU) |
Ignition switch off | Below 1 V | |
| I20-4 (EFIO) - I20-5 (GND) | EFI communication output
(Signal output from ID code box (immobiliser code ECU) to hybrid vehicle control ECU) |
Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery | Pulse generation
(See waveform 2) |
|
| I20-2 (LIN1) - I20-5 (GND) | LIN communication line | Ignition switch ON | Pulse generation | - |
Using an oscilloscope, check the waveform.
The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
Waveform 1
| *a | Approximately 160 ms. | *b | Approximately 270 ms. |
| Item | Content |
|---|---|
| Tester Connection | I20-3 (EFII) - I20-5 (GND) |
| Tool Setting | 2 V/DIV., 500 ms./DIV. |
| Condition | Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery |
Waveform 2
| *a | Approximately 160 ms. | *b | Approximately 270 ms. |
| Item | Content |
|---|---|
| Tester Connection | I20-4 (EFIO) - I20-5 (GND) |
| Tool Setting | 2 V/DIV., 500 ms./DIV. |
| Condition | Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery |
CHECK HYBRID VEHICLE CONTROL ECU
Measure the voltage and resistance, and check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition | Related Data List Item/DTC |
|---|---|---|---|---|
| I3-8 (+B1) - I3-1 (E1) | Ignition power supply | Ignition switch ON | 11 to 14 V | - |
| I3-1 (E1) - Body ground | Ground | Always | Below 1 Ω | - |
| I3-39 (IMO) - I3-1 (E1) | EFI communication output
(Signal output from hybrid vehicle control ECU to ID code box (immobiliser code ECU)) |
Ignition switch off | 11 to 14 V | ·
EFI Code Receive ·
Start Request |
| I3-39 (IMO) - I3-1 (E1) | EFI communication output
(Signal output from hybrid vehicle control ECU to ID code box (immobiliser code ECU)) |
Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery | Pulse generation
(See waveform 1) |
|
| I3-53 (IMI) - I3-1 (E1) | EFI communication input
(Signal input from ID code box (immobiliser code ECU) to hybrid vehicle control ECU) |
Ignition switch off | 11 to 14 V → 1 V or less | |
| I3-53 (IMI) - I3-1 (E1) | EFI communication input
(Signal input from ID code box (immobiliser code ECU) to hybrid vehicle control ECU) |
Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery | Pulse generation
(See waveform 2) |
|
| I3-11 (ST2) - I3-1 (E1) | Hybrid control system start request signal | With the brake pedal depressed, the power switch is pressed and held → After approx. 3 sec. has elapsed, the power switch is released | 8.5 V or higher → 1.0 V or less | - |
Using an oscilloscope, check the waveform.
The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
Waveform 1 (Reference)
| *a | Approximately 160 ms. | *b | Approximately 270 ms. |
| Item | Content |
|---|---|
| Tester Connection | I3-39 (IMO) - I3-1 (E1) |
| Tool Setting | 2 V/DIV., 500 ms./DIV. |
| Condition | Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery |
Waveform 2 (Reference)
| *a | Approximately 160 ms. | *b | Approximately 270 ms. |
| Item | Content |
|---|---|
| Tester Connection | I3-53 (IMI) - I3-1 (E1) |
| Tool Setting | 2 V/DIV., 500 ms./DIV. |
| Condition | Within 3 seconds of hybrid control system start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery |
CHECK POWER SWITCH
Measure the resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition | Related Data List Item/DTC |
|---|---|---|---|---|
| I119-3 (GND) - Body ground | Transponder key amplifier ground | Always | Below 1 Ω | - |
Measure the voltage and check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition | Related Data List Item/DTC |
|---|---|---|---|---|
| I119-1 (ANT1) - I119-3 (GND) | Signal input / output from transponder key coil (transponder key coil built into power switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of power switch pressed | Pulse generation
(See waveform 1) |
Entry&Start
Encrypt Code Difference
|
| I119-7 (ANT2) - I119-3 (GND) | Signal input / output from transponder key coil (transponder key coil built into power switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of power switch pressed | Pulse generation
(See waveform 1) |
|
| I119-11 (SS3) - I119-3 (GND) | SS3 contact signal
|
Power switch not pushed → Power switch pushed | 9 V or higher → Below 1 V | Power Source Control
·
Push Start Switch 3 |
| I119-6 (SS2) - I119-3 (GND) | SS2 contact signal
|
Power switch not pushed → Power switch pushed | 9 V or higher → Below 1 V | Power Source Control
·
Push Start Switch 2 |
| I119-12 (SS1) - I119-3 (GND) | SS1 contact signal | Power switch not pushed → Power switch pushed | 9 V or higher → Below 1 V | Power Source Control
·
Push Start Switch 1 |
Using an oscilloscope, check the waveform.
The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
Waveform 1 (Reference)
| Item | Content |
|---|---|
| Tester Connection | I119-1 (ANT1) - I119-3 (GND)
I119-7 (ANT2) - I119-3 (GND) |
| Tool Setting | 5 V/DIV., 200 ms./DIV. |
| Condition | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of power switch pressed |
SMART ENTRY AND START SYSTEM (for Entry Function) (w/ Entry Function)