TERMINALS OF ECU
1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
(a) Remove the main body ECU (multiplex network body ECU) (See page ).
(b) 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-30 (BECU) - Body ground |
- |
Battery power supply |
Always |
11 to 14 V |
A-31 (ALTB) - Body ground |
- |
Battery power supply |
Always |
11 to 14 V |
A-32 (IG) - Body ground |
- |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
A-32 (IG) - Body ground |
- |
Ignition switch power supply |
Ignition switch off |
Below 1 V |
A-29 (ACC) - Body ground |
- |
ACC power supply |
Ignition switch ACC |
11 to 14 V |
A-29 (ACC) - Body ground |
- |
ACC power supply |
Ignition switch off |
Below 1 V |
A-11 (GND1) - Body ground |
- |
Ground |
Always |
Below 1 Ω |
F10-3 (GND2) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Install the main body ECU (multiplex network body ECU) (See page ).
(d) Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
2F-27 (FLCY) - Body ground |
R - Body ground |
Front door LH courtesy switch input |
Front door LH open |
Below 1 V |
2F-27 (FLCY) - Body ground |
R - Body ground |
Front door LH courtesy switch input |
Front door LH closed |
11 to 14 V |
2B-15 (FRCY) - Body ground |
B - Body ground |
Front door RH courtesy switch input |
Front door RH open |
Below 1 V |
2B-15 (FRCY) - Body ground |
B - Body ground |
Front door RH courtesy switch input |
Front door RH closed |
11 to 14 V |
F8-3 (LCTY) - Body ground |
V - Body ground |
Rear door LH courtesy light switch input |
Rear door LH open |
Below 1 V |
F8-3 (LCTY) - Body ground |
V - Body ground |
Rear door LH courtesy light switch input |
Rear door LH closed |
11 to 14 V |
F10-27 (RCTY) - Body ground |
R - Body ground |
Rear door RH courtesy light switch input |
Rear door RH open |
Below 1 V |
F10-27 (RCTY) - Body ground |
R - Body ground |
Rear door RH courtesy light switch input |
Rear door RH closed |
11 to 14 V |
F9-7 (LSFL) - Body ground |
G - Body ground |
Front door LH lock position switch input |
Front door LH unlocked |
Below 1 V |
F9-7 (LSFL) - Body ground |
G - Body ground |
Front door LH lock position switch input |
Ignition switch off, all doors closed and front door LH locked |
Pulse generation (see waveform 1 or 2) |
F9-18 (LSFR) - Body ground |
G - Body ground |
Front door RH lock position switch input |
Front door RH unlocked |
Below 1 V |
F9-18 (LSFR) - Body ground |
G - Body ground |
Front door RH lock position switch input |
Ignition switch off, all doors closed and front door RH locked |
Pulse generation (see waveform 3 or 4) |
2F-25 (LSWL) - Body ground |
V - Body ground |
Rear door LH lock position switch input |
Rear door LH unlocked |
Below 1 V |
2F-25 (LSWL) - Body ground |
V - Body ground |
Rear door LH lock position switch input |
Ignition switch off, all doors closed and rear door LH locked |
Pulse generation (see waveform 5 or 6) |
F10-2 (LSWR) - Body ground |
V - Body ground |
Rear door RH lock position switch input |
Rear door RH unlocked |
Below 1 V |
F10-2 (LSWR) - Body ground |
V - Body ground |
Rear door RH lock position switch input |
Ignition switch off, all doors closed and rear door RH locked |
Pulse generation (see waveform 7 or 8) |
F9-25 (PRG) - Body ground |
LG - Body ground |
Door control receiver output |
Key in ignition key cylinder → No key in ignition key cylinder |
Pulse generation |
F9-26 (RDA) - Body ground |
P - Body ground |
Door control receiver input |
No key in ignition key cylinder, all doors closed and transmitter switch off → on |
Pulse generation |
2D-13 (BZR) - Body ground |
GR - Body ground |
Wireless door lock buzzer signal |
Wireless door lock buzzer off |
Below 1 V |
2D-13 (BZR) - Body ground |
GR - Body ground |
Wireless door lock buzzer signal |
Wireless door lock buzzer on |
11 to 14 V |
F9-3 (HAZ) - Body ground |
W - Body ground |
Hazard warning signal light signal output |
Hazard warning signal switch off |
Below 1 V |
F9-3 (HAZ) - Body ground |
W - Body ground |
Hazard warning signal light signal output |
Hazard warning signal switch on |
11 to 14 V |
F9-17 (KSW) - Body ground |
B - Body ground |
Unlock warning switch input |
No key in ignition key cylinder |
10 kΩ or higher |
F9-17 (KSW) - Body ground |
B - Body ground |
Unlock warning switch input |
Key in ignition key cylinder |
Below 1 Ω |
If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may have a malfunction.
(e) Using an oscilloscope, check waveform 1.
Waveform 1 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
F9-7 (LSFL) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and front door LH locked |
(f) Using an oscilloscope, check waveform 2.
Waveform 2 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
F9-7 (LSFL) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and front door LH locked |
(g) Using an oscilloscope, check waveform 3.
Waveform 3 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
F9-18 (LSFR) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and front door RH locked |
(h) Using an oscilloscope, check waveform 4.
Waveform 4 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
F9-18 (LSFR) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and front door RH locked |
(i) Using an oscilloscope, check waveform 5.
Waveform 5 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
2F-25 (LSWL) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and rear door LH locked |
(j) Using an oscilloscope, check waveform 6.
Waveform 6 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
2F-25 (LSWL) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and rear door LH locked |
(k) Using an oscilloscope, check waveform 7.
Waveform 7 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
F10-2 (LSWR) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and rear door RH locked |
(l) Using an oscilloscope, check waveform 8.
Waveform 8 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
F10-2 (LSWR) - Body ground |
Tool Setting |
5 V/DIV., 20 ms/DIV. |
Condition |
Ignition switch off, all doors closed and rear door RH locked |
2. CHECK MULTIPLEX NETWORK DOOR ECU (BACK DOOR P/W)
(a) Disconnect the V2 multiplex network door ECU (back door P/W) 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) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
V2-1 (BDR) - Body ground |
B - Body ground |
Battery power supply |
Always |
11 to 14 V |
V2-7 (BECU) - Body ground |
L - Body ground |
Battery power supply |
Always |
11 to 14 V |
V2-8 (SIG) - Body ground |
G - Body ground |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
V2-8 (SIG) - Body ground |
G - Body ground |
Ignition switch power supply |
Ignition switch off |
Below 1 V |
V2-6 (GND) - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the V2 multiplex network door ECU (back door P/W) connector.
(d) Measure the resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
W10-10 (BDCY) - W10-18 (CTYE) |
P - G |
Back door courtesy switch input |
Back door closed |
Pulse generation (see waveform 1 or 2) |
W10-10 (BDCY) - W10-18 (CTYE) |
P - G |
Back door courtesy switch input |
Back door open |
Below 1 V |
If the result is not as specified, the multiplex network door ECU (back door P/W) may have a malfunction.
(e) Using an oscilloscope, check waveform 1.
Waveform 1 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
W10-10 (BDCY) - W10-18 (CTYE) |
Tool Setting |
5 V/DIV., 10 ms/DIV. |
Condition |
Back door closed |
(f) Using an oscilloscope, check waveform 2.
Waveform 2 (Reference)
Item |
Content |
---|---|
Terminal No. (Symbol) |
W10-10 (BDCY) - W10-18 (CTYE) |
Tool Setting |
5 V/DIV., 10 ms/DIV. |
Condition |
Back door closed |
Inspection
INSPECTION
PROCEDURE
1. INSPECT MAGNET CLUTCH ASSEMBLY
(a) Check the magnet clutch operation.
(1) Confirm that the magnet clutch hub and magnet clutch rotor lock when the
positive (+) lead of the battery is connected to terminal 3 of the magnet clutch, ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
Condition
Specified Condition
...