CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Disconnect the E33 and E34 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 |
|---|---|---|---|---|---|---|
| E33-11 (E) - Body ground | - | W-B - Body ground | Ground | Always | Below 1 Ω | - |
| E33-2 (+B) - E33-11 (E) | Input | L - W-B | +B power supply | Always | 11 to 14 V | - |
| E33-10 (CUTB) - E33-11 (E) | Input | LG - W-B | Dark current cut pin* | Always | 11 to 14 V | - |
*: 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 radio 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 E33 and E34 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 |
|---|---|---|---|---|---|---|
| E35-5 (IG) - E33-11 (E) | Input | GR - W-B | GR power supply | Engine switch off → on (IG) | Below 1 V → 11 to 14 V | Ignition Switch |
| E35-12 (CLG1) - E33-11 (E) | Output | R - W-B | 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) | ||||
| E35-13 (CG1B) - E33-11 (E) | Output | W - W-B | 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) |
| E35-11 (CLG2) - E33-11 (E) | Output | B - W-B | 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) | ||||
| E35-10 (CG2B) - E33-11 (E) | Output | Y - W-B | 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) |
| E35-3 (CLG5) - E33-11 (E) | Output | P - W-B | Output to NO. 1 indoor electrical key antenna assembly (front floor) | Procedure:
|
Pulse generation (See waveform 3) | Over Head + Front Room (key diagnostic mode) |
| E35-2 (CG5B) - E33-11 (E) | Output | G - W-B | 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) |
| E35-20 (TSW1) - E33-11 (E) | Input | R - W-B | Driver door lock sensor signal input (Sends signal from door lock sensor on front door outside handle assembly LH to certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) sends 12 V pulse waveform every 20 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded. |
Procedure:
|
Pulse generation (See waveform 5) | D-Door Trigger Switch |
| E35-8 (TSW2) - E33-11 (E) | Input | R - W-B | Front passenger door lock sensor signal input (Sends signal from door lock sensor on front door outside handle assembly RH to certification ECU (smart key ECU assembly). Certification ECU (smart key ECU assembly) sends 12 V pulse waveform every 20 ms. from terminal TSW. When door lock sensor is touched, the pulse is grounded. |
Procedure:
|
Pulse generation (See waveform 5) | P-Door Trigger Switch |
| E35-22 (SEN1) - E33-11 (E) | Input | L - W-B | 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 5) | D-Door Touch Sensor |
| E35-23 (SEN2) - E33-11 (E) | Input | W - W-B | 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 5) | P-Door Touch Sensor |
| E34-27 (TSW5) - E33-11 (E) | Input | V - W-B | Back door opener switch assembly (unlock switch) signal input | Back door opener switch assembly (unlock switch) off → on | Pulse generation (See waveform 5) | Tr/B-Door Unlock SW |
| E34-28 (TSW6) - E33-11 (E) | Input | L - W-B | Back door opener switch assembly (lock switch) signal input | Back door opener switch assembly (lock switch )off → on | Pulse generation (See waveform 5) | Tr/B-Door Lock SW |
| E34-11 (CLG6) - E33-11 (E) | Output | W - W-B | Output to NO. 2 indoor electrical key antenna assembly (rear floor) | Procedure:
|
Pulse generation (See waveform 3) | Over Head + Rear Room (key diagnostic mode) |
| E34-10 (CG6B) - E33-11 (E) | Output | LG - W-B | Output to NO. 2 indoor electrical key antenna assembly (rear floor) (terminal on opposite side of component from CLG6 output terminal) | Procedure:
|
Pulse generation (See waveform 3) | Over Head + Rear Room (key diagnostic mode) |
| E34-9 (CLG7) - E33-11 (E) | Output | R - W-B | Output to NO. 3 indoor electrical key antenna assembly (inside luggage) | Procedure:
|
Pulse generation (See waveform 3) | Over Head + Back Door (inside) (key diagnostic mode) |
| E34-8 (CG7B) - E33-11 (E) | Output | G - W-B | Output to NO. 3 indoor electrical key antenna assembly (inside luggage) (terminal on opposite side of component from CLG7 output terminal) | Procedure:
|
Pulse generation (See waveform 3) | Over Head + Back Door (inside) (key diagnostic mode) |
| E35-19 (POS1) - E33-11 (E) | Output | Y - W-B | 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 | - |
| E35-21 (POS2) - E33-11 (E) | Output | LG - W-B | 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 | - |
| E34-5 (RCO) - E33-11 (E) | Output | V - W-B | 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 6) | - |
| E34-17 (RDAM) - E33-11 (E) | Input | Y - W-B | 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 7) | - |
| E34-6 (CSEL) - E33-11 (E) | Output | L - W-B | Communication channel switching circuit | Procedure:
|
Below 1 V → 4.5 to 6 V → Below 1 V | Key diagnostic mode |
| E34-2 (CLG8) - E33-11 (E) | Output | LG - W-B | Output to electrical key antenna (outside luggage) | Procedure:
|
Pulse generation (See waveform 4) | Over Head + Back Door |
| E34-1 (CG8B) - E33-11 (E) | Output | P - W-B | Output to electrical key antenna (outside luggage) (terminal on opposite side of component from CLG8 output terminal) | Procedure:
|
Pulse generation (See waveform 4) | Over Head + Back Door |
*1: For details about the areas that are inside the entry function detection area, refer to Operation Check.
*2: For details about the areas that are outside the entry function detection area, refer to Operation Check.
*3: For details about the areas that are inside the wireless function operational area, refer to Operation Check.
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 | E35-12 (CLG1) - E33-11 (E) E35-11 (CLG2) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*: For details about the areas that are inside the entry function detection area, refer to Operation Check.
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 | E35-12 (CLG1) - E33-11 (E) E35-11 (CLG2) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*: For details about the areas that are outside the entry function detection area, refer to Operation Check.
| Item | Content |
|---|---|
| Tester Connection | E35-13 (CG1B) - E33-11 (E) E35-10 (CG2B) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*: For details about the areas that are outside the entry function detection area, refer to Operation Check.
| *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 | E35-3 (CLG5) - E33-11 (E) E35-2 (CG5B) - E33-11 (E) E34-11 (CLG6) - E33-11 (E) E34-10 (CG6B) - E33-11 (E) E34-9 (CLG7) - E33-11 (E) E34-8 (CG7B) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| *a | Engine switch off, all doors closed and back door opener switch assembly off → on |
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 | E34-2 (CLG8) - E33-11 (E) E34-1 (CG8B) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| *a | In actuality, sampling is being performed |
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 | E35-20 (TSW1) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection | E35-8 (TSW2) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection | E35-22 (SEN1) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection | E35-23 (SEN2) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
| Item | Content |
|---|---|
| Tester Connection | E34-27 (TSW5) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV |
| Condition | Back door opener switch assembly (unlock switch) off → on |
| Item | Content |
|---|---|
| Tester Connection | E34-28 (TSW6) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV |
| Condition | Back door opener switch assembly (lock switch) off → on |
| *a | Before lock or unlock switch of electrical key transmitter sub-assembly pressed |
| *b | After lock or unlock switch of electrical key transmitter sub-assembly pressed |
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 | E34-5 (RCO) - E33-11 (E) |
| Tool Setting | 2 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: For details about the areas that are outside the entry function detection area, refer to Operation Check.
*2: For details about the areas that are inside the wireless function operational area, refer to Operation Check.
| *a | Before lock or unlock switch of electrical key transmitter sub-assembly pressed |
| *b | After lock or unlock switch 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 | E34-17 (RDAM) - E33-11 (E) |
| Tool Setting | 5 V/DIV., 500 ms/DIV. |
| Condition | Procedure:
|
*1: For details about the areas that are outside the entry function detection area, refer to Operation Check.
*2: For details about the areas that are inside the wireless function operational area, refer to Operation Check.
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
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 |
|---|---|---|---|---|---|---|
| MB-11 (GND1) - Body ground | - | - | Ground | Always | Below 1 Ω | - |
| MB-30 (BECU) - Body ground | Input | - | Battery power supply (for CPU) | Always | 11 to 14 V | - |
| MB-29 (ACC) - Body ground | Input | - | ACC power supply | Engine switch on (ACC) | 11 to 14 V | ACC SW |
| MB-32 (IG) - Body ground | Input | - | Engine switch power supply | Engine switch on (IG) | 11 to 14 V | IG SW |
If the result is not as specified, there may be a malfunction in the wire harness.
Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.
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 |
|---|---|---|---|---|---|---|
| 3E-25 (FLCY) - Body ground | Input | W - Body ground | Front door LH courtesy light switch input | Front door LH closed → open | Pulse generation (See waveform 2) | FL Door Courtesy SW |
| E22-19 (FRCY) - Body ground | Input | V - Body ground | Front door RH courtesy light switch input | Front door RH closed → open | Pulse generation (See waveform 1) | FR Door Courtesy SW |
| E22-24 (LCTY) - Body ground | Input | SB - Body ground | Rear door LH courtesy light switch input | Rear door LH closed → open | Pulse generation (See waveform 2) | RL Door Courtesy SW |
| E22-6 (RCTY) - Body ground | Input | LG - Body ground | Rear door RH courtesy light switch input | Rear door RH closed → open | Pulse generation (See waveform 2) | RR Door Courtesy SW |
| 3E-34 (BCTY) - Body ground | Input | LG - Body ground | Back door courtesy light switch input | Back door open | Below 1 V | Back Door Courtesy SW |
| Engine switch off, all doors closed and back door closed | 11 to 14 V | |||||
| E22-11 (L2) - Body ground | Input | SB - Body ground | Driver door key-linked lock input | Engine switch off, all doors closed and driver door key cylinder in neutral position → lock position | Pulse generation (See waveform 1) | Door Key SW-Lock |
| E22-12 (UL2) - Body ground | Input | P - Body ground | Driver door key-linked unlock input | Engine switch off, all doors closed and driver door key cylinder in neutral position → unlock position | Pulse generation (See waveform 2) | D Door Key SW-UL |
| 3C-14 (ACT+) - Body ground | Output | R - Body ground | Door lock motor lock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Lock side of driver door control switch pushed or driver door key cylinder in lock position | 11 to 14 V | |||||
| 3C-13 (ACT+) - Body ground | Output | BE - Body ground | Door lock motor lock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Lock side of driver door control switch pushed or driver door key cylinder in lock position | 11 to 14 V | |||||
| 3E-8 (ACT+) - Body ground | Output | BE - Body ground | Door lock motor lock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Lock side of driver door control switch pushed or driver door key cylinder in lock position | 11 to 14 V | |||||
| 3E-9 (ACT+) - Body ground | Output | R - Body ground | Door lock motor lock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Lock side of driver door control switch pushed or driver door key cylinder in lock position | 11 to 14 V | |||||
| 3E-39 (TR+) - Body ground | Output | P - Body ground | Driver door lock motor unlock drive output | Back door closed | Below 1 V | - |
| Back door open | 11 to 14 V | |||||
| 3C-5 (ACT-) - Body ground | Output | SB - Body ground | Door lock motor unlock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Unlock side of driver door control switch pushed or driver door key cylinder in unlock position | 11 to 14 V | |||||
| 3C-4 (ACT-) - Body ground | Output | LG - Body ground | Door lock motor unlock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Unlock side of driver door control switch pushed or driver door key cylinder in unlock position | 11 to 14 V | |||||
| 3E-1 (ACT-) - Body ground | Output | SB - Body ground | Door lock motor unlock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Unlock side of driver door control switch pushed or driver door key cylinder in unlock position | 11 to 14 V | |||||
| 3E-2 (ACT-) - Body ground | Output | SB - Body ground | Door lock motor unlock drive output | Driver door control switch not pushed and driver door key cylinder in neutral position | Below 1 V | - |
| Unlock side of driver door control switch pushed or driver door key cylinder in unlock position | 11 to 14 V | |||||
| E22-7 (LSFL) - Body ground | Input | Y - Body ground | Front door LH unlock detection switch input | Engine switch off, all doors closed and front door LH locked → unlocked | Pulse generation (See waveform 1) | FL Door Lock Pos |
| E22-18 (LSFR) - Body ground | Input | LG - Body ground | Front door RH unlock detection switch input | Engine switch off, all doors closed and front door RH locked → unlocked | Pulse generation (See waveform 2) | FR Door Lock Pos |
| 3E-37 (LSR) - Body ground | Input | Y - Body ground | Rear door LH unlock detection switch input | Engine switch off, all doors closed and rear door LH and rear door RH locked → unlocked | Pulse generation (See waveform 1) | RL-Door Lock Pos SW |
| 3E-22 (LSR) - Body ground | Input | Y - Body ground | Rear door RH unlock detection switch input | Engine switch off, all doors closed and rear door RH and rear door LH locked → unlocked | Pulse generation (See waveform 1) | RR-Door Lock Pos SW |
If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may be malfunctioning.
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 | E22-19 (FRCY) - Body ground |
| Tool Setting | 2 V/DIV., 200 ms/DIV. |
| Condition | Front door RH closed → open |
| Item | Content |
|---|---|
| Tester Connection | 3E-37 (LSR) - Body ground |
| Tool Setting | 2 V/DIV., 200 ms/DIV. |
| Condition | Engine switch off, all doors closed and rear door LH and rear door RH locked → unlocked |
| Item | Content |
|---|---|
| Tester Connection | 3E-22 (LSR) - Body ground |
| Tool Setting | 2 V/DIV., 200 ms/DIV. |
| Condition | Engine switch off, all doors closed and rear door RH and rear door LH locked → unlocked |
| Item | Content |
|---|---|
| Tester Connection | E22-11 (L2) - Body ground |
| Tool Setting | 2 V/DIV., 200 ms/DIV. |
| Condition | Engine switch off, all doors closed and driver door key cylinder in neutral position → lock position |
| Item | Content |
|---|---|
| Tester Connection | E22-7 (LSFL) - Body ground |
| Tool Setting | 2 V/DIV., 200 ms/DIV. |
| Condition | Engine switch off, all doors closed and front door LH locked → unlocked |
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 | E22-12 (UL2) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, all doors closed and driver door key cylinder in neutral position → unlock position |
| Item | Content |
|---|---|
| Tester Connection | E22-24 (LCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Rear door LH closed → open |
| Item | Content |
|---|---|
| Tester Connection | E22-18 (LSFR) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Engine switch off, all doors closed and front door RH locked → unlocked |
| Item | Content |
|---|---|
| Tester Connection | 3E-25 (FLCY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Front door LH closed → open |
| Item | Content |
|---|---|
| Tester Connection | E22-6 (RCTY) - Body ground |
| Tool Setting | 5 V/DIV., 20 ms/DIV. |
| Condition | Rear door RH closed → open |