TERMINALS OF ECU
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
(a) Disconnect the H45 and H46 certification ECU (smart key ECU assembly) connectors.
(b) Measure the resistance and voltage according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Tester Connection | Terminal Description | Condition | Specified Condition | Related Data List Item/DTC |
---|---|---|---|---|
H45-15 (NE) - Body ground | Engine speed signal | Always | 10 kΩ or higher | Power Source Control
|
H46-6 (+B) - H46-29 (E) | Power source | Always | 11 to 14 V | - |
H45-22 (CUTB) - Body ground | Dark current cut pin*1 | Always | 11 to 14 V | - |
H46-29 (E) - Body ground | GND | Always | Below 1 Ω | - |
H46-23 (SSW3) - Body ground | SSW3 contact signal | Engine switch pushed → Engine switch not pushed | Below 15 Ω → 10 kΩ or higher | Power Source Control
|
H46-27 (SSW2) - Body ground | SSW2 contact signal | Engine switch pushed → Engine switch not pushed | Below 15 Ω → 10 kΩ or higher | Power Source Control
|
H46-19 (SSW1) - Body ground | SSW1 contact signal | Engine switch pushed → Engine switch not pushed | Below 15 Ω → 10 kΩ or higher | Power Source Control
|
H45-13 (SPD) - Body ground | Vehicle speed signal | Always | 30 kΩ or higher | Power Source Control
|
(c) Connect the H45 and H46 certification ECU (smart key ECU assembly) connectors.
(d) 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 |
---|---|---|---|---|
H45-3 (STA) - H46-29 (E) | When starting the engine, this monitors the voltage sent from terminal STAR to the starter relay to judge whether the engine is "being started". | Engine switch pressed and held with clutch pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off) | 6 V → 1.0 V or less | - |
H45-10 (STAR) - H46-29 (E) | Outputs voltage to the starter relay
HINT: When Hi is selected, a start request signal (STAR) will not be output even though a start request signal (STSW) is input. | Engine switch pressed and held with clutch pedal depressed (starter on) → Approximately 1 second after engine switch released (starter off) | 6 V → 1.0 V or less | - |
H45-15 (NE) - Body ground | Engine speed signal | Idling (engine warmed up) | Pulse generation (See waveform 5) | Power Source Control
|
H46-11 (SLP) - H46-29 (E) | Steering lock position signal | Steering locked → Steering unlocked | 11 to 14 V → 1.5 V or less | Power Source Control
|
H46-24 (SLR+) - H46-29 (E) | Steering lock motor operation command signal (Steering lock motor operation permission signal sent from the certification ECU (smart key ECU assembly)) | When a door is opened, the steering lock motor will be operated if all of the following conditions are met:
| Pulse generation (See waveform 1) | - |
H46-8 (LIN) - H46-29 (E) | LIN communication line | Ignition switch ON | Pulse generation | Smart Key
|
H46-23 (SSW3) - H46-29 (E) | SSW3 contact signal | Engine switch not pushed → Engine switch pushed | 9 V or higher → 1 V or less | Power Source Control
|
H46-27 (SSW2) - H46-29 (E) | SSW2 contact signal | Engine switch not pushed → Engine switch pushed | 9 V or higher → 1 V or less | Power Source Control
|
H46-19 (SSW1) - H46-29 (E) | SSW1 contact signal | Engine switch not pushed → Engine switch pushed | 9 V or higher → 1 V or less | Power Source Control
|
H46-21 (ACCD) - H46-29 (E) | ACC signal | Ignition switch off → Ignition switch ACC | 1 V or less → 8.5 V or higher | Power Source Control
|
H45-11 (IGRD) - H46-29 (E) | IG signal | Ignition switch off → Ignition switch ON | 1 V or less → 9 V or higher | Power Source Control
|
H45-24 (IGPD) - H46-29 (E) | IG signal | Ignition switch off → Ignition switch ON | 1 V or less → 9 V or higher | Power Source Control
|
H45-13 (SPD) - H46-29 (E) | Vehicle speed signal | Vehicle being driven at approx. 5 km/h (3 mph) | Pulse generation (See waveform 2) | Power Source Control
|
H46-4 (CLG5) - H46-29 (E) | Output to No. 1 indoor electrical key antenna assembly (front floor) | Procedure:
| Pulse generation (See waveform 3) | - |
H46-5 (CG5B) - H46-29 (E) | Output to No. 1 indoor electrical key antenna assembly (front floor) (terminal on opposite side of component from CLG5 output terminal) | Procedure:
| Pulse generation (See waveform 3) | - |
O47-10 (CLG7) - H46-29 (E) | Output to No. 2 indoor electrical key antenna assembly (rear floor) | Procedure:
| Pulse generation (See waveform 3) | - |
O47-9 (CG7B) - H46-29 (E) | Output to No. 2 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG7 output terminal) | Procedure:
| Pulse generation (See waveform 3) | - |
H46-30 (AGND) - Body ground | Transponder key amplifier ground | Always | Below 1 Ω | - |
H46-12 (ANT1) - H46-30 (AGND) | Signal input / output from transponder key coil (transponder key coil built into engine switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed | Pulse generation (See waveform 4) | Smart Key
|
H46-13 (ANT2) - H46-30 (AGND) | Signal input / output from transponder key coil (transponder key coil built into engine switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed | Pulse generation (See waveform 4) | |
H46-25 (IND) - H46-29 (E) | Security indicator output | Ignition switch off → ON | Pulse generation → Below 2 V | - |
HINT:
(e) Using an oscilloscope, check the waveform of the ECU.
NOTICE:
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
(1) Waveform 1
*a | Steering lock motor not operating |
*b | Steering lock motor operating |
Item | Content |
---|---|
Tester Connection | H46-24 (SLR+) - H46-29 (E) |
Tool Setting | 2 V/DIV., 200 ms./DIV. |
Condition | When a door is opened, the steering lock motor will be operated if all of the following conditions are met:
|
(2) Waveform 2
Item | Content |
---|---|
Tester Connection | H45-13 (SPD) - H46-29 (E) |
Tool Setting | 5 V/DIV., 20 ms./DIV. |
Condition | Vehicle being driven at approx. 5 km/h (3 mph) |
HINT:
The wavelength becomes shorter as the vehicle speed increases.
(3) Waveform 3
*a | For 30 seconds after any door closed |
*b | After 30 seconds or more have elapsed since any door closed |
Item | Content |
---|---|
Tester Connection | H46-4 (CLG5) - H46-29 (E) H46-5 (CG5B) - H46-29 (E) O47-10 (CLG7) - H46-29 (E) O47-9 (CG7B) - H46-29 (E) |
Tool Setting | 5 V/DIV., 500 ms./DIV. |
Condition | Procedure:
|
(4) Waveform 4
Item | Content |
---|---|
Tester Connection | H46-12 (ANT1) - H46-30 (AGND) H46-13 (ANT2) - H46-30 (AGND) |
Tool Setting | 20 V/DIV., 200 ms./DIV. |
Condition | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed |
(5) Waveform 5
Item | Content |
---|---|
Tester Connection | H45-15 (NE) - Body ground |
Tool Setting | 2 V/DIV., 2 ms./DIV. |
Condition | Idling (engine warmed up) |
HINT:
The wavelength becomes shorter as the engine speed increases.
CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)
(a) Disconnect the H71 steering lock ECU (steering lock actuator or upper bracket assembly) connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition | Related Data List Item/DTC |
---|---|---|---|---|
H71-1 (GND) - Body ground | Ground | Always | Below 1 Ω | - |
H71-7 (B) - Body ground | Constant power supply | Ignition switch off | 11 to 14 V | - |
(c) Connect the H71 steering lock ECU (steering lock actuator or upper bracket assembly) connector.
(d) 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 |
---|---|---|---|---|
H71-3 (IGE) - H71-1 (GND) | Steering lock motor operation permission signal (motor operation permission signal supplied by certification ECU (smart key ECU assembly)) | Steering lock motor operating when all conditions met, and then door opened:
| Pulse generation (See waveform 1) | Smart Key
|
H71-4 (SLP1) - H71-1 (GND) | Steering lock bar position signal (signal output from steering unlock sensor) | Steering locked → unlocked | 11 to 14 V → Below 1.5 V | Smart Key
|
H71-5 (LIN) - H71-1 (GND) | LIN communication line | Ignition switch ON | Pulse generation | Smart Key
|
H71-6 (SLA) - H71-1 (GND) | Steering lock motor operation permission signal (motor operation permission signal supplied by certification ECU (smart key ECU assembly)) | Ignition switch off → ON | Below 1 V → 11 to 14 V | - |
HINT:
(e) Using an oscilloscope, check the waveform of the ECU.
NOTICE:
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
Waveform 1
*a | Steering lock motor not operating |
*b | Steering lock motor operating |
Item | Content |
---|---|
Tester Connection | H71-3 (IGE) - H71-1 (GND) |
Tool Setting | 2 V/DIV., 200 ms./DIV. |
Condition | Steering lock motor operating when all conditions met, and then door opened:
|
CHECK ID CODE BOX (IMMOBILISER CODE ECU)
(a) Disconnect the H67 ID code box (immobiliser code ECU) connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Tester Connection | Terminal Description | Condition | Specified Condition | Related Data List Item |
---|---|---|---|---|
H67-1 (+B) - Body ground | Power source | Ignition switch off | 11 to 14 V | - |
H67-5 (GND) - Body ground | Ground | Always | Below 1 Ω |
(c) Reconnect the H67 ID code box (immobiliser code ECU) connector.
(d) 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 |
---|---|---|---|---|
H67-3 (EFII) - H67-5 (GND) | EFI communication input (Signal input from ECM to ID code box (immobiliser code ECU)) | Ignition switch off | 11 to 14 V | Smart Key
|
H67-3 (EFII) - H67-5 (GND) | EFI communication input (Signal input from ECM to ID code box (immobiliser code ECU)) | Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery | Pulse generation (See waveform 1) | |
H67-4 (EFIO) - H67-5 (GND) | EFI communication output (Signal output from ID code box (immobiliser code ECU) to ECM) | Ignition switch off | Below 1 V | |
H67-4 (EFIO) - H67-5 (GND) | EFI communication output (Signal output from ID code box (immobiliser code ECU) to ECM) | Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery | Pulse generation (See waveform 2) | |
H67-2 (LIN1) - H67-5 (GND) | LIN communication line | Ignition switch ON | Pulse generation | Smart Key
|
(e) Using an oscilloscope, check the waveform.
NOTICE:
The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
(1) Waveform 1
*a | Approximately 160 ms. | *b | Approximately 270 ms. |
Item | Content |
---|---|
Tester Connection | H67-3 (EFII) - H67-5 (GND) |
Tool Setting | 2 V/DIV., 500 ms./DIV. |
Condition | Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery |
(2) Waveform 2
*a | Approximately 160 ms. | *b | Approximately 270 ms. |
Item | Content |
---|---|
Tester Connection | H67-4 (EFIO) - H67-5 (GND) |
Tool Setting | 2 V/DIV., 500 ms./DIV. |
Condition | Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery |
CHECK ECM
(a) 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 |
---|---|---|---|---|
A106-13 (IGR) - A106-10 (E1) | Ignition power supply | Ignition switch ON | 11 to 14 V | - |
A106-1 (BATT) - A106-10 (E1) | +B power supply | Always | 11 to 14 V | - |
A106-10 (E1) - Body ground | Ground | Always | Below 1 Ω | - |
A106-47 (IMO) - A106-10 (E1) | EFI communication input (Signal input from ECM to ID code box (immobiliser code ECU)) | Ignition switch off | 11 to 14 V | Smart Key
|
EFI communication input (Signal input from ECM to ID code box (immobiliser code ECU)) | Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery | Pulse generation (See waveform 1) | ||
A106-61 (IMI) - A106-10 (E1) | EFI communication input (Signal output from ID code box (immobiliser code ECU) to ECM) | Ignition switch off | 1 V or less | |
EFI communication input (Signal output from ID code box (immobiliser code ECU) to ECM) | Ignition switch turned to ON using registered electrical key transmitter sub-assembly | Pulse generation (See waveform 2) | ||
A106-16 (NEO) - A106-10 (E1) | Engine speed signal | Idling (engine warmed up) | Pulse generation (See waveform 3) | Power Source Control
|
A106-30 (STA) - A106-10 (E1) | When starting the engine, this monitors the voltage sent from terminal STAR to the starter relay to judge whether the engine is "being started". | Engine is cranking | 6 V or higher | - |
A106-23 (NSW) - A106-10 (E1) | Clutch start switch signal | Ignition switch ON (Clutch pedal fully depressed) | Below 1.5 V | - |
Ignition switch ON (Clutch pedal released) | 11 to 14 V | - |
(b) Using an oscilloscope, check the waveform.
NOTICE:
The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
(1) Waveform 1 (Reference)
*a | Approximately 160 ms. | *b | Approximately 270 ms. |
Item | Content |
---|---|
Tester Connection | A106-47 (IMO) - A106-10 (E1) |
Tool Setting | 2 V/DIV., 500 ms./DIV. |
Condition | Within 3 seconds of engine start or within 3 seconds of ignition switch turned to ON after cable disconnected and reconnected to auxiliary battery |
(2) Waveform 2 (Reference)
*a | Approximately 160 ms. | *b | Approximately 270 ms. |
Item | Content |
---|---|
Tester Connection | A106-61 (IMI) - A106-10 (E1) |
Tool Setting | 2 V/DIV., 500 ms./DIV. |
Condition | Ignition switch turned to ON using registered electrical key transmitter sub-assembly |
(3) Waveform 3
Item | Content |
---|---|
Tester Connection | A106-16 (NEO) - A106-10 (E1) |
Tool Setting | 5 V/DI., 20 ms./DIV. |
Condition | Idling (engine warmed up) |
HINT:
The wavelength becomes shorter as the engine speed increases.
CHECK ENGINE SWITCH
(a) 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 |
---|---|---|---|---|
H68-3 (GND) - Body ground | Transponder key amplifier ground | Always | Below 1 Ω | - |
H68-11 (SS3) - H68-3 (GND) | SS3 contact signal HINT: Backup for SS1. Behaves the same way as SS1. | Engine switch not pushed → Engine switch pushed | 9 V or higher → Below 1 V | Power Source Control
|
H68-6 (SS2) - H68-3 (GND) | SS2 contact signal HINT: Backup for SS1. Behaves the same way as SS1. | Engine switch not pushed → Engine switch pushed | 9 V or higher → Below 1 V | Power Source Control
|
H68-12 (SS1) - H68-3 (GND) | SS1 contact signal | Engine switch not pushed → Engine switch pushed | 9 V or higher → Below 1 V | Power Source Control
|
(b) 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 |
---|---|---|---|---|
H68-1 (ANT1) - H68-3 (GND) | Signal input / output from transponder key coil (transponder key coil built into engine switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed | Pulse generation (See waveform 1) | Smart Key
|
H68-7 (ANT2) - H68-3 (GND) | Signal input / output from transponder key coil (transponder key coil built into engine switch) | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed | Pulse generation (See waveform 1) |
(c) Using an oscilloscope, check the waveform.
NOTICE:
The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
(1) Waveform 1 (Reference)
Item | Content |
---|---|
Tester Connection | H68-1 (ANT1) - H68-3 (GND) H68-7 (ANT2) - H68-3 (GND) |
Tool Setting | 20 V/DIV., 200 ms./DIV. |
Condition | Ignition switch off, electrical key transmitter sub-assembly not in cabin, within 30 seconds of engine switch pressed |
SMART KEY SYSTEM (for Entry Function)
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The front seat belt pretensioners are designed to deploy in moderate or severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision or a rollover accident is detected. The pretensioners operate differently depending on what types of air bags are equipped. For more details about the seat belt pretensioner operation, refer to the SRS Air Bag Deployment Criteria.