CHECK POWER DISTRIBUTION BOX ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.
Reconnect the power distribution box assembly connectors.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| MB-13 (GND1) - Body ground | Ground | Always | Below 1 Ω |
| MB-14 (GND2) - Body ground | Ground | Always | Below 1 Ω |
| MB-25 (SBAT) - Body ground | Auxiliary battery power supply | Ignition switch off*1
Always*2 |
11 to 14 V |
| MB-26 (BECU) - Body ground | Auxiliary battery power supply | Ignition switch off*1
Always*2 |
11 to 14 V |
| MB-27 (IGR) - Body ground | IG power supply | Ignition switch ON | 11 to 14 V |
| Ignition switch off | Below 1 V |
*1: for HV Model
*2: for Gasoline Model
Install the main body ECU (multiplex network body ECU) to the power distribution box assembly.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| 4E-3 (FLCY) - Body ground | Front door courtesy light switch assembly (LH) input | Front door LH open → closed | Below 1 V → 11 to 14 V |
| 4C-9 (FRCY) - Body ground | Front door courtesy light switch assembly (RH) input | Front door RH open → closed | Below 1 V → 11 to 14 V |
| 4E-26 (LCTY) - Body ground | Rear door courtesy light switch assembly (LH) input | Rear door LH open → closed | Below 1 V → 11 to 14 V |
| 4E-1 (RCTY) - Body ground | Rear door courtesy light switch assembly (RH) input | Rear door RH open → closed | Below 1 V → 11 to 14 V |
| 4E-2 (BCTY) - Body ground | Back door courtesy light switch input | Back door open → closed | Below 1 V → 11 to 14 V |
| E37-9 (LSFL) - Body ground | Front door LH unlock detection switch input | Front door LH unlocked → locked | Below 1 V → Pulse generation |
| E37-3 (LSFR) - Body ground | Front door RH unlock detection switch input | Front door RH unlocked → locked | Below 1 V → Pulse generation |
| E37-10 (LSWL) - Body ground | Rear door LH unlock detection switch input | Rear door LH unlocked → Rear door LH locked | Below 1 V → Pulse generation |
| E36-23 (LSWR) - Body ground | Rear door RH unlock detection switch input | Rear door RH unlocked → Rear door RH locked | Below 1 V → Pulse generation |
| 4C-36 (ACT-) - Body ground | Door lock motor unlock drive output | Door control switch or driver door key cylinder off → on (unlock) | Below 1 V → 11 to 14 V → Below 1 V |
| 4E-36 (ACT-) - Body ground | Door lock motor unlock drive output | Door control switch or driver door key cylinder off → on (unlock) | Below 1 V → 11 to 14 V → Below 1 V |
| 4E-37 (ACT-) - Body ground | Door lock motor unlock drive output | Door control switch or driver door key cylinder off → on (unlock) | Below 1 V → 11 to 14 V → Below 1 V |
| 4E-14 (ACT+) - Body ground | Door lock motor lock drive output | Door control switch or driver door key cylinder off → on (lock) | Below 1 V → 11 to 14 V → Below 1 V |
| 4E-15 (ACT+) - Body ground | Door lock motor lock drive output | Door control switch or driver door key cylinder off → on (lock) | Below 1 V → 11 to 14 V → Below 1 V |
| 4B-19 (ACT+) - Body ground | Door lock motor lock drive output | Door control switch or driver door key cylinder off → on (lock) | Below 1 V → 11 to 14 V → Below 1 V |
| 4B-34 (ACT+) - Body ground | Door lock motor lock drive output | Door control switch or driver door key cylinder off → on (lock) | Below 1 V → 11 to 14 V → Below 1 V |
| 4B-20 (ACTD) - Body ground | Door lock motor unlock drive output | Door control switch or driver door key cylinder off → on (unlock) | Below 1 V → 11 to 14 V → Below 1 V |
| E37-4 (UL3) - Body ground | Driver door key-linked unlock input | Driver door key cylinder in neutral position → on (unlock) | Pulse generation → Below 1 V |
| E37-28 (L2) - Body ground | Driver door key-linked lock input | Driver door key cylinder in neutral position → on (lock) | Pulse generation → Below 1 V |
| 4C-43 (GSW) - Body ground | Airbag sensor signal (collision detection signal) | Ignition switch ON with airbag sensor assembly connector disconnected | 4.3 to 5.5 V |
| 4E-39 (TR+) - Body ground*4 | Back door lock motor unlock drive output | Back door opener switch off → on | Below 1 V → 11 to 14 V → Below 1 V |
| E36-2 (ACTG) - Body ground*1 | Collision door lock release signal | Collision door lock release function does not operate | Below 2 V*2
7.3 to 9.9 V*3 |
| Collision door lock release function operates | Below 1 V |
*1: for Gasoline Model
*2: Door control battery not charged
*3: Door control battery charging or charged
*4: w/o Power Back Door System
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
Disconnect the E52 certification ECU (smart key ECU assembly) 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.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| E52-6 (+B) - Body ground | Auxiliary battery power supply | Ignition switch off*1
Always*2 |
11 to 14 V |
| E52-29 (E) - Body ground | Ground | Always | Below 1 Ω |
*1: for HV Model
*2: for Gasoline Model
Reconnect the E52 certification ECU (smart key ECU assembly) connector.
Measure the voltage and check for pulses according to the value(s) in the table below.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| K6-16 (TSW5) - E52-29 (E) | Back door opener switch input | Back door opener switch (open switch) off → on | Pulse generation → Below 1 V |