CHECK MAIN BODY ECU
| *1 | Cowl Side Junction Block LH | - | - |
| *1 | Main Body ECU | - | - |
Remove the main body ECU from the cowl side junction block LH.
for LHD: Click here
for RHD: Click here
Connect the cowl side junction block LH connectors.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| A-11 (GND1) - Body ground | None - Body ground | Ground | Always | Below 1 Ω |
| A-30 (ACC) - Body ground | None - Body ground | ACC power supply | Engine switch on (ACC) | 11 to 14 V |
| Engine switch off | Below 1 V | |||
| A-31 (BECU) - 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 to the cowl side junction block LH.
for LHD: Click here
for RHD: Click here
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| 2I-7 (GSW) - Body ground | B - Body ground | Airbag sensor signal (collision detection signal) |
Engine switch on (IG) with airbag sensor assembly connector disconnected | 2.8 to 4.3 V |
| 2I-9 (ACTD) - Body ground | LA-L - Body ground | Door lock motor unlock 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 unlocked | 11 to 14 V | |||
| 2J-3 (ACT-) - Body ground | LA-L - 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 | |||
| 2J-4 (ACT-) - Body ground | LA-V - Body ground | Door lock motor unlock drive output signal (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 | |||
| 2J-5 (ACT+) - Body ground | LA-B - Body ground*3 LA-R - Body ground*4 |
Door lock motor lock drive output signal (front passenger side 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 | |||
| 2J-6 (ACT+) - Body ground | LA-R - 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 | |||
| 2J-7 (ACT+) - Body ground | LA-GR - Body ground | Door lock motor lock drive output signal (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 | |||
| 2J-16 (LSFR) - Body ground | B - Body ground | Front door RH unlock detection switch input signal | Front door RH unlocked | Below 1 V |
| ignition switch off, all doors closed and front door RH locked | Pulse generation | |||
| 2J-19 (LSFL) - Body ground | G - Body ground | Front door LH unlock detection switch input signal | Front door LH unlocked | Below 1 V |
| ignition switch off, all doors closed and front door LH locked | Pulse generation | |||
| 2J-21 (UL1) - Body ground | LG - Body ground | Door control switch assembly input | Door control switch assembly off | Pulse generation |
| Door control switch assembly on (unlock) | Below 1 V | |||
| 2J-21 (UL1) - Body ground *1 |
LG - Body ground | Master switch (door control switch) input | Master switch (door control switch) off | Pulse generation |
| Master switch (door control switch) on (unlock) | Below 1 V | |||
| 2J-26 (L1) - Body ground | L - Body ground | Door control switch assembly input | Door control switch assembly off | Pulse generation |
| Door control switch assembly on (lock) | Below 1 V | |||
| 2J-26 (L1) - Body ground *1 |
L - Body ground | Master switch (door control switch) input | Master switch (door control switch) off | Pulse generation |
| Master switch (door control switch) on (lock) | Below 1 V | |||
| 2J-28 (KSW) - Body ground*2 | G - Body ground | Key unlock warning switch input | No key in ignition key cylinder | Pulse generation |
| Key in ignition key cylinder | Below 1 V | |||
| 2J-29 (RCTY) - Body ground | BE - Body ground | Rear door courtesy light switch assembly RH input signal | Rear door RH open | Below 1 V |
| Rear door RH closed | Pulse generation | |||
| 2K-7 (ACT+) - Body ground | LA-SB - Body ground*5 SB - Body ground*6 |
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 | |||
| 2K-8 (TR+) - Body ground*7 | G - Body ground | Back door lock motor drive output | Back door closed | Below 1 V |
| Back door open | 11 to 14 V | |||
| 2K-9 (ACT-) - Body ground | LA-P - Body ground*5 P - Body ground*6 |
Door lock motor unlock drive output signal (rear door LH and back door*6) | 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 | |||
| 2K-31 (BCTY) - Body ground*5, *7 | W - Body ground | Back door courtesy light switch input | Back door closed | Below 1 V |
| Back door open | Pulse generation | |||
| 2K-33 (LSWL) - Body ground | L - Body ground | Rear door LH unlock detection switch input signal | Rear door LH unlocked | Below 1 V |
| ignition switch off, all doors closed and rear door LH locked | Pulse generation | |||
| 2K-34 (LCTY) - Body ground | BE - Body ground | Rear door courtesy light switch assembly LH input signal | Rear door LH open | Below 1 V |
| Rear door LH closed | Pulse generation | |||
| E117-2 (LSWR) - Body ground | W - Body ground | Rear door RH unlock detection switch input signal | Rear door RH unlocked | Below 1 V |
| ignition switch off, all doors closed and rear door RH locked | 11 to 14 V | |||
| E117-3 (ACTG) - Body ground*5 | B - Body ground | Collision door lock release signal | Collision door lock release function does not operate | Below 2 V*8 7.3 to 9.9 V*9 |
| Collision door lock release function operates | Below 1 V | |||
| E118-2 (UL3) - Body ground | P - Body ground | Driver door key-linked unlock input | Driver door key cylinder turned to neutral position | Pulse generation |
| Driver door key cylinder turned to on (unlock) | Below 1 V | |||
| E118-6 (FLCY) - Body ground | V - Body ground | Front door courtesy light switch assembly LH input signal | Front door LH open | Below 1 V |
| Front door LH closed | Pulse generation | |||
| E118-17 (LSWB) - Body ground*6 | B - Body ground | Back door unlock detection switch input signal | Back door unlocked | Below 1 V |
| ignition switch off, all doors closed and back door locked | 11 to 14 V | |||
| E118-27 (FRCY) - Body ground | V - Body ground | Front door courtesy light switch assembly RH input signal | Front door RH open | Below 1 V |
| Front door RH closed | Pulse generation | |||
| E118-29 (L2) - Body ground | G - Body ground | Driver door key-linked unlock input | Driver door key cylinder turned to neutral position | Pulse generation |
| Driver door key cylinder turned to on (lock) | Below 1 V |
Tech Tips
*1: for Models with Jam Protection Function on Driver Door Window Only
*2: w/o Entry and Start System
*3: for China
*4: except China
*5: for Lift Gate Type
*6: for Double Swing Out Type
*7: w/o Power Back Door System
*8: Door control battery not charged
*9: Door control battery charging or charged
If the result is not as specified, the ECU may have a malfunction.
CHECK DOUBLE LOCK DOOR CONTROL RELAY (w/ Double Locking Function)
Disconnect the E167 double lock door control relay connector.
Measure the voltage according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| E167-12 (+B) - E167-7 (GND) | LA-W - W-B | Battery power supply | Always | 11 to 14 V |
| E167-11 (CPUB) - E167-17 (GND) | G - W-B | ECU power supply | Always | 11 to 14 V |
| E167-7 (GND) - Body ground | W-B - Body ground | Ground | Always | Below 1 V |
If the result is not as specified, there may be a malfunction on the wire harness side.
Reconnect the E86 double lock door control relay connector.
Measure the voltage and resistance according to the value(s) in the table below.
| Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
|---|---|---|---|---|
| E167-1 (ACTR) - E167-7 (GND) | P - V | All door double lock motor off signal | Door lock set → unset | Below 1 V → 11 to 14 V → Below 1 V |
| E167-8 (ACTS) - E167-7 (GND) | G - W-B | All door double lock motor on signal | Door lock unset → set | Below 1 V → 11 to 14 V → Below 1 V |
| E167-6 (DLPD) - E167-7 (GND) | LG - Body ground | Double lock position switch signal | Double lock set | Below 1 Ω |
| Double lock unset | 10 kΩ or higher | |||
| E167-5 (DLPP) - E167-7 (GND) | GR - W-B | Double lock position switch signal | Double lock set | Below 1 Ω |
| Double lock unset | 10 kΩ or higher | |||
| E167-3 (DLPR) - E167-7 (GND) | SB - W-B | Double lock position switch signal | Double lock set | Below 1 Ω |
| Double lock unset | 10 kΩ or higher | |||
| E167-3 (DLPL) - E167-7 (GND) | LG - W-B | Double lock position switch signal | Double lock set | Below 1 Ω |
| Double lock unset | 10 kΩ or higher |
If the result is not as specified, the ECU may have a malfunction.