CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Disconnect the A34 and N93 certification ECU (smart key ECU assembly) connectors.
Measure the voltage and resistance according to the value(s) in the table below.
Tech Tips
Measure the values on the wire harness side with the connector disconnected.
| Tester Connection | Input/Output | Wiring Color | Terminal Description | Condition | Specified Condition | Related Data List Item |
|---|---|---|---|---|---|---|
| A34-11 (E) - Body ground | - | W-B - Body ground*1 BR - Body ground*2 |
Ground | Always | Below 1 Ω | - |
| A34-2 (+B) - A34-11 (E) | Input | W - W-B*1 W - BR*2 |
+B power supply | Always | 11 to 14 V | - |
| N93-6 (IG1D) - Body ground | Output | B - Body ground | IG1 signal | 20°C (68°F) | 40.74 to 59.49 Ω | IG1 Relay Monitor(Outside) |
| A34-9 (IG2D) - Body ground | Output | B - Body ground | IG2 signal | 20°C (68°F) | Approximately 302.97 Ω | IG2 Relay Monitor(Outside) |
| N93-4 (ACCD) - Body ground | Output | B - Body ground | ACC signal | 20°C (68°F) | 81.49 to 118.98 Ω | ACC Relay Monitor |
| A34-10 (CUTB) - A34-11 (E) | Input | P - W-B*1 P - BR*2 |
Dark current cut pin* | Always | 11 to 14 V | - |
*1: for LHD
*2: for RHD
*: In order to prevent the vehicle 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 set in the circuit. If the fuse is removed, the circuit becomes open. If the fuse that is between the vehicle 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 electric waves every 0.25 seconds. that form the detection area stops).
If the result is not as specified, there may be a malfunction on the wire harness side or the fuse is removed.
Reconnect the A34 and N93 certification ECU (smart key ECU assembly) connectors.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Input/Output | Wiring Color | Terminal Description | Condition | Specified Condition | Related Data List Item |
|---|---|---|---|---|---|---|
| N93-5 (IG) - A34-11 (E) | Input | B - W-B*4 B - BR*5 |
IG power supply | Engine switch off → on (IG) | Below 1 V → 11 to 14 V | Engine Switch |
| N93-12 (CLG1) - A34-11 (E) | Output | P - W-B*4 W - BR*5 |
Output to driver door electrical key antenna (request signal [challenge] is sent to door electrical key antenna from certification ECU [smart key ECU assembly] to form detection area) |
Procedure:
|
Pulse generation (See waveform 1) | Over Head + Driver Side (key diagnostic mode) |
| Procedure:
|
Pulse generation (See waveform 2) | Over Head + Driver Side (key diagnostic mode) | ||||
| N93-13 (CG1B) - A34-11 (E) | Output | R - W-B*4 R - BR*5 |
Output to driver door electrical key antenna (terminal on opposite side of component from CLG1 output terminal) | Procedure:
|
Pulse generation (See waveform 2) | Over Head + Driver Side (key diagnostic mode) |
| N93-11 (CLG2) - A34-11 (E) | Output | W - W-B*4 P - BR*5 |
Output to front passenger door electrical key antenna (request signal [challenge] is sent to door electrical key antenna from certification ECU [smart key ECU assembly] to form detection area) |
Procedure:
|
Pulse generation (See waveform 1) | Over Head + Passenger Side (key diagnostic mode) |
| Procedure:
|
Pulse generation (See waveform 2) | Over Head + Passenger Side (key diagnostic mode) | ||||
| N93-10 (CG2B) - A34-11 (E) | Output | R - W-B*4 R - BR*5 |
Output to front passenger door electrical key antenna (terminal on opposite side of component from CLG2 output terminal) | Procedure:
|
Pulse generation (See waveform 2) | Over Head + Passenger Side (key diagnostic mode) |
|
Output | P - W-B*4 W - BR*5 |
Output to rear door electrical key antenna (request signal [challenge] is sent to door electrical key antenna from certification ECU [smart key ECU assembly] to form detection area) |
Procedure:
|
Pulse generation (See waveform 1) | Over Head + Rear Side (key diagnostic mode) |
| Procedure:
|
Pulse generation (See waveform 2) | Over Head + Rear Side (key diagnostic mode) | ||||
|
Output | R - W-B*4 R - BR*5 |
Output to rear door electrical key antenna (terminal on opposite side of component from CLG3 output terminal) | Procedure:
|
Pulse generation (See waveform 2) | Over Head + Rear Side (key diagnostic mode) |
|
Output | W - W-B*4 P - BR*5 |
Output to rear door electrical key antenna (request signal [challenge] is sent to door electrical key antenna from certification ECU [smart key ECU assembly] to form detection area) |
Procedure:
|
Pulse generation (See waveform 1) | Over Head + Rear Side (key diagnostic mode) |
| Procedure:
|
Pulse generation (See waveform 2) | Over Head + Rear Side (key diagnostic mode) | ||||
|
Output | R - W-B*4 R - BR*5 |
Output to rear door electrical key antenna (terminal on opposite side of component from CLG4 output terminal) | Procedure:
|
Pulse generation (See waveform 2) | Over Head + Rear Side (key diagnostic mode) |
| N93-3 (CLG5) - A34-11 (E) | Output | GR - W-B*4 GR - BR*5 |
Output to No. 1 indoor electrical key antenna assembly (front floor) | Procedure:
|
Pulse generation (See waveform 3) | Over Head + Front Room (key diagnostic mode) |
| N93-2 (CG5B) - A34-11 (E) | Output | B - W-B*4 B - BR*5 |
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) | Over Head + Front Room (key diagnostic mode) |
| N93-20 (TSW1) - A34-11 (E) | Input | LG - W-B*4 Y - BR*5 |
Driver door lock sensor signal input (Sends signal from door lock sensor on front door outside handle assembly to certification ECU [smart key ECU assembly]. Certification ECU [smart key ECU assembly] send 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.) |
Procedure:
|
Pulse generation (See waveform 6) | D-Door Trigger Switch |
| N93-8 (TSW2) - A34-11 (E) | Input | Y - W-B*4 LG - BR*5 |
Front passenger door lock sensor signal input (Sends signal from door lock sensor on front door outside handle assembly to certification ECU [smart key ECU assembly]. Certification ECU [smart key ECU assembly] sends 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.) |
Procedure:
|
Pulse generation (See waveform 6) | P-Door Trigger Switch |
|
Input | V - W-B*4 G - BR*5 |
Rear door lock sensor signal input (Sends signal from door lock sensor on rear door outside handle assembly to certification ECU [smart key ECU assembly]. Certification ECU [smart key ECU assembly] send 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.) |
Procedure:
|
Pulse generation (See waveform 6) | Dr-Door Trigger Switch |
|
Input | G - W-B*4 V - BR*5 |
Rear door lock sensor signal input (Sends signal from door lock sensor on rear door outside handle assembly to certification ECU [smart key ECU assembly]. Certification ECU [smart key ECU assembly] sends 12 V pulse waveform every 40 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded.) |
Procedure:
|
Pulse generation (See waveform 6) | Pr-Door Trigger Switch |
| N93-22 (SEN1) - A34-11 (E) | Input | B - W-B*4 V - BR*5 |
Driver door unlock sensor signal input (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal [sensing] to certification ECU [smart key ECU assembly]) |
Procedure:
|
Pulse generation (See waveform 6) | D-Door Touch Sensor |
| N93-23 (SEN2) - A34-11 (E) | Input | V - W-B*4 B - BR*5 |
Front passenger door unlock sensor signal input (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal [sensing] to certification ECU [smart key ECU assembly]) |
Procedure:
|
Pulse generation (See waveform 6) | P-Door Touch Sensor |
|
Input | L - W-B*4 R - BR*5 |
Rear door unlock sensor signal input (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal [sensing] to certification ECU [smart key ECU assembly]) |
Procedure:
|
Pulse generation (See waveform 6) | Dr-Door Touch Sensor |
|
Input | R - W-B*4 L - BR*5 |
Rear door unlock sensor signal input (when system is in unlock standby mode and touch sensor is touched, door electrical key antenna sends touch sensor input signal [sensing] to certification ECU [smart key ECU assembly]) |
Procedure:
|
Pulse generation (See waveform 6) | Pr-Door Touch Sensor |
|
Input | SB- W-B*4 SB - BR*5 |
Luggage door opening switch assembly signal input | Luggage door opening switch assembly off → on | Pulse generation (See waveform 6) | Tr/B-Door Unlock SW |
|
Output | Y - W-B*4 Y - BR*5 |
Output to No. 2 indoor electrical key antenna assembly (rear floor) | Procedure:
|
Pulse generation (See waveform 3) | Over Head + Rear Room (key diagnostic mode) |
|
Output | L - W-B*4 L - BR*5 |
Output to No. 2 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal) | Proceed:
|
Pulse generation (See waveform 3) | Over Head + Rear Room (key diagnostic mode) |
|
Output | P - W-B*4 P - BR*5 |
Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) | Proceed:
|
Pulse generation (See waveform 4) | Over Head + Luggage (inside) (key diagnostic mode) |
|
Output | W - W-B*4 W - BR*5 |
Output to No. 3 indoor electrical key antenna assembly (inside luggage compartment) (terminal on opposite side of component from CLG7 output terminal) | Proceed:
|
Pulse generation (See waveform 4) | Over Head + Luggage (inside) (key diagnostic mode) |
| N93-19 (POS1) - A34-11 (E) | Output | GR - W-B*4 W - BR*5 |
Driver door unlock sensor power source (12 V [drops when engine switch turned on (IG)]) | Engine switch off → on (IG) | 9 to 14 V → Below 2 V | - |
| N93-21 (POS2) - A34-11 (E) | Output | W - W-B*4 GR - BR*5 |
Front passenger door unlock sensor power source (12 V [drops when engine switch turned on (IG)]) | Engine switch off → on (IG) | 9 to 14 V → Below 2 V | - |
|
Output | SB - W-B*4 P - BR*5 |
Rear door unlock sensor power source (12 V [drops when engine switch turned on (IG)]) | Engine switch off → on (IG) | 9 to 14 V → Below 2 V | - |
|
Output | P - W-B*4 SB - BR*5 |
Rear door unlock sensor power source (12 V [drops when engine switch turned on (IG)]) | Engine switch off → on (IG) | 9 to 14 V → Below 2 V | - |
|
Output | G - W-B*4 LG - BR*5 |
Output to door control receiver (Power supply for door control receiver. Certification ECU [smart key ECU assembly] outputs 5 V when receiver starts operating.) |
Procedure:
|
Pulse generation (See waveform 7) | - |
|
Input | R - W-B*4 R - BR*5 |
Door control receiver verifies data received from electrical key transmitter sub-assembly. Door control receiver sends data to ECU and intermittently grounds 12 V signal from certification ECU (smart key ECU assembly). | Proceed:
|
Pulse generation (See waveform 8) | - |
|
Output | P - W-B*4 P - BR*5 |
Communication channel switching circuit. | Procedure:
|
Below 1 V → 4.5 to 6 V → Below 1 V | Key diagnostic mode |
|
Output | Y - W-B*4 Y - BR*5 |
Output to electrical key antenna (outside luggage) | Procedure:
|
Pulse generation (See waveform 5) | Over Head + Luggage or Luggage + Luggage (key diagnostic mode) |
|
Output | B - W-B*4 B - BR*5 |
Output to electrical key antenna (outside luggage) (terminal on opposite side of component from CLG8 output terminal) | Procedure:
|
Pulse generation (See waveform 5) | Over Head + Luggage or Luggage + Luggage (key diagnostic mode) |
*1: For details about the areas that are inside the entry function detection area, refer to Operation Check Click here.
*2: For details about the areas that are outside the entry function detection area, refer to Operation Check Click here.
*3: For details about the areas that are inside the wireless function operational area, refer to Operation Check Click here.
*4: for LHD
*5: for RHD
Using an oscilloscope, check waveform 1.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
*3: For details about the areas that are inside the entry function detection area, refer to Operation Check Click here.
Using an oscilloscope, check waveform 2.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
*3: For details about the areas that are outside the entry function detection area, refer to Operation Check Click here.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
| *a | Door open |
| *b | After approximately 30 seconds from when the door is closed |
Using an oscilloscope, check waveform 3.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
| *a | Before driver door lock sensor touched |
| *b | After driver door lock sensor touched |
Using an oscilloscope, check waveform 4.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Proceed:
|
*1: for LHD
*2: for RHD
| *a | Engine switch off, all doors closed and luggage door opening switch assembly off → on |
Using an oscilloscope, check waveform 5.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
| *a | In actuality, sampling is being performed |
Using an oscilloscope, check waveform 6.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection | N93-20 (TSW1) - A34-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection | N93-8 (TSW2) - A34-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
| Item | Content |
|---|---|
| Tester Connection | N93-22 (SEN1) - A34-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection | N93-23 (SEN2) - A34-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV |
| Condition | Luggage door opening switch assembly off → on |
*1: for LHD
*2: for RHD
| *a | Before lock or unlock switches of electrical key transmitter sub-assembly pressed |
| *b | After lock or unlock switches of electrical key transmitter sub-assembly pressed |
Using an oscilloscope, check waveform 7.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: for LHD
*2: for RHD
*3: For details about the areas that are outside the entry function detection area, refer to Operation Check Click here.
*4: For details about the areas that are inside the wireless function operational area, refer to Operation Check Click here.
| *a | Before lock or unlock switches of electrical key transmitter sub-assembly pressed |
| *b | After lock or unlock switches of electrical key transmitter sub-assembly pressed |
Using an oscilloscope, check waveform 8.
Tech Tips
The oscilloscope waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.
| Item | Content |
|---|---|
| Tester Connection |
|
| Tool Setting | 5 V/DIV., 500 ms/DIV. |
| Condition | Proceed:
|
*1: for LHD
*2: for RHD
*3: For details about the areas that are outside the entry function detection area, refer to Operation Check Click here.
*4: For details about the areas that are inside the wireless function operational area, refer to Operation Check Click here.
CHECK COWL SIDE JUNCTION BLOCK LH AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
| *1 | Main Body ECU (Multiplex Network Body ECU) | - | - |
Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH Click here.
Connect the cowl side junction block LH connectors.
Measure the voltage and resistance according to the value(s) in the table below.
| Tester Connection | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A-11 (GND1) - Body ground | None - Body ground | Ground | Always | Below 1 Ω |
| A-29 (ACC) - Body ground | None - Body ground | ACC power supply | Engine switch on (ACC) | 11 to 14 V |
| Engine switch off | Below 1 V | |||
| A-30 (BECU) - Body ground | None - Body ground | Battery power supply | Always | 11 to 14 V |
| A-31 (ALTB) - Body ground | None - Body ground | Battery power supply | Always | 11 to 14 V |
| A-32 (IG) - Body ground | None - Body ground | IG power supply | Engine switch on (IG) | 11 to 14 V |
| Engine switch off | Below 1 V |
Install the main body ECU (multiplex network body ECU) to the cowl side junction block LH Click here.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| 5A-11 (ACT-) - Body ground | LG - Body ground | Door lock motor unlock drive output signal (front passenger side door and rear door RH) | Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off | Below 1 V |
| Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked | 11 to 14 V | |||
| 5A-13 (ACT+) - Body ground | G - Body ground | Door lock motor lock drive output signal (front passenger side door and and rear door RH) | Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off | Below 1 V |
| Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked | 11 to 14 V | |||
| 5A-33 (FRCY) - Body ground | R - Body ground | Front door courtesy light switch assembly RH input signal | Front door RH open | Below 1 V |
| Front door RH closed | Pulse generation | |||
| 5C-8 (ACT+) - Body ground | G - Body ground | Door lock motor lock drive output signal (rear door LH) | Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off | Below 1 V |
| Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked | 11 to 14 V | |||
| 5C-9 (ACT+) - Body ground | G - Body ground | Door lock motor lock drive output signal (driver ) | Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off | Below 1 V |
| Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked | 11 to 14 V | |||
| 5C-10 (ACTD) - Body ground*1 5A-1 (ACTD) - Body ground*2 |
L - Body ground | Door lock motor lock drive output signal (driver door) | Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off | Below 1 V |
| Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder locked | 11 to 14 V | |||
| 5C-12 (ACT-) - Body ground | LG - Body ground | Door lock motor unlock drive output signal (rear door LH) | Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder off | Below 1 V |
| Multiplex network master switch assembly (door control switch), power window regulator switch assembly (door control switch) or driver door key cylinder unlocked | 11 to 14 V | |||
| 5C-30 (LSWL) - Body ground | B - Body ground*1 GR - Body ground*2 |
Rear door LH unlock detection switch input signal | Rear door LH unlocked | Below 1 V |
| Engine switch off, all doors closed and rear door LH locked | Pulse generation | |||
| 5C-44 (FLCY) - Body ground | R - Body ground | Front door courtesy light switch assembly LH input signal | Front door LH open | Below 1 V |
| Front door LH closed | Pulse generation | |||
| 5D-27 (BZR) - Body ground | G - Body ground | Wireless door lock buzzer output signal | Engine switch off, all doors closed and electrical key transmitter sub-assembly switch OFF → ON | Below 1 V → Pulse generation |
| N11-3 (LCTY) - Body ground | G - Body ground | Rear door courtesy light switch assembly LH input signal | Rear door LH open | Below 1 V |
| Rear door LH closed | Pulse generation | |||
| N12-6 (RCTY) - Body ground | G - Body ground | Rear door courtesy light switch assembly RH input signal | Rear door RH open | Below 1 V |
| Rear door RH closed | Pulse generation | |||
| N12-7 (LSFL) - Body ground | SB - Body ground | Front door LH unlock detection switch input signal | Front door LH unlocked | Below 1 V |
| Engine switch off, all doors closed and front door LH locked | Pulse generation | |||
| N12-18 (LSFR) - Body ground | SB - Body ground | Front door RH unlock detection switch input signal | Front door RH unlocked | Below 1 V |
| Engine switch off, all doors closed and front door RH locked | Pulse generation | |||
| N13-2 (LSWR) - Body ground | B - Body ground*1 P - Body ground*2 |
Rear door RH unlock detection switch input signal | Rear door RH unlocked | Below 1 V |
| Engine switch off, all doors closed and rear door RH locked | 11 to 14 V |
*1: for LHD
*2: for RHD