TERMINALS OF ECU
1. CHECK COMBINATION METER ASSEMBLY
(a) Measure the resistance and voltage according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
E2-14 (B) - Body ground |
Y - Body ground |
Battery power supply |
Always |
11 to 14 V |
E2-13 (IG+) - Body ground |
BR - Body ground |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
E2-13 (IG+) - Body ground |
BR - Body ground |
Ignition switch power supply |
Ignition switch off |
Below 1 V |
E2-11 (E1) - Body ground |
B - Body ground |
Ground |
Always |
Below 1 Ω |
E2-24 (ES) - Body ground |
W - Body ground |
Ground |
Always |
Below 1 Ω |
E1-1 (CANH) - Body ground |
LG - Body ground |
CAN communication line |
Always |
200 Ω or higher |
E1-9 (CANL) - Body ground |
W - Body ground |
CAN communication line |
Always |
200 Ω or higher |
E1-5 (P/SB) - Body ground |
G - Body ground |
Front passenger side seat belt warning light signal |
Front passenger side seat occupied, seat belt fastened |
11 to 14 V |
E1-5 (P/SB) - Body ground |
G - Body ground |
Front passenger side seat belt warning light signal |
Front passenger side seat occupied, seat belt unfastened |
Below 1 V |
2. CHECK ACCESSORY METER ASSEMBLY
(a) Measure the resistance and voltage according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F2-1 (B) - Body ground |
P - Body ground |
Battery power supply |
Always |
11 to 14 V |
F2-13 (IG+) - Body ground |
L - Body ground |
Ignition switch power supply |
Ignition switch ON |
11 to 14 V |
F2-13 (IG+) - Body ground |
L - Body ground |
Ignition switch power supply |
Ignition switch off |
Below 1 V |
F2-12 (E) - Body ground |
B - Body ground |
Ground |
Always |
Below 1 Ω |
F2-20 (PBEW) - Body ground |
G - Body ground |
Front passenger side seat belt warning light signal |
Front passenger side seat occupied, seat belt fastened |
11 to 14 V |
F2-20 (PBEW) - Body ground |
G - Body ground |
Front passenger side seat belt warning light signal |
Front passenger side seat occupied, seat belt unfastened |
Below 1 V |
3. CHECK CENTER AIRBAG SENSOR ASSEMBLY
Terminal No. |
Terminal Symbol |
Destination |
---|---|---|
M28-16 |
FSR+ |
Occupant classification ECU |
M28-24 |
FSR- |
Occupant classification ECU |
L31-10 |
LBE+ |
Front seat inner belt assembly (for driver side) |
L31-18 |
LBE- |
Front seat inner belt assembly (for driver side) |
4. CHECK OCCUPANT CLASSIFICATION ECU
(a) Measure the voltage according to the value(s) in the table below.
Tester Connection |
Wiring Color |
Terminal Description |
Condition |
Specification |
---|---|---|---|---|
S12-1 (+B) - S12-3 (GND)*1 M14-1 (+B) - M14-3 (GND)*2 |
GR - W-B*1 G - W-B*2 |
Battery power supply |
Always |
10 to 14 V |
S12-2 (DIA) - S12-3 (GND)*1 M14-2 (DIA) - M14-3 (GND)*2 |
SB - W-B |
Diagnosis (DLC3) |
Ignition switch ON |
Pulse generation |
S12-3 (GND) - Body ground*1 M14-3 (GND) - Body ground*2 |
W-B - Body ground |
Ground |
Always |
Below 1 V |
S12-7 (IG) - S12-3 (GND)*1 M14-7 (IG) - M14-3 (GND)*2 |
V - W-B |
Ignition switch power supply |
Ignition switch ON |
10 to 14 V |
S12-8 (FSR+) - S12-4 (FSR-)*1 M14-8 (FSR+) - M14-4 (FSR-)*2 |
W - B |
Center airbag sensor assembly communication line |
Ignition switch ON |
Pulse generation |
S12-9 (BSW) - S12-5 (BGND)*1 M14-9 (BSW) - M14-5 (BGND)*2 |
L - GR*1 G - Y*2 |
Front passenger side buckle switch line |
Always |
4 to 14 V |
S13-1 (SGD1) - S12-3 (GND)*1 S13-1 (SGD1) - M14-3 (GND)*2 |
R - W-B*1 Y - W-B*2 |
Front occupant classification sensor LH ground line |
Always |
Below 1 V |
S13-2 (SGD2) - S12-3 (GND)*1 S13-2 (SGD2) - M14-3 (GND)*2 |
Y - W-B*1 SB - W-B*2 |
Front occupant classification sensor RH ground line |
Always |
Below 1 V |
S13-3 (SGD3) - S12-3 (GND)*1 S13-3 (SGD3) - M14-3 (GND)*2 |
BR - W-B*1 L - W-B*2 |
Rear occupant classification sensor LH ground line |
Always |
Below 1 V |
S13-4 (SGD4) - S12-3 (GND)*1 S13-4 (SGD4) - M14-3 (GND)*2 |
LG - W-B*1 W - W-B*2 |
Rear occupant classification sensor RH ground line |
Always |
Below 1 V |
S13-11 (SVC1) - S13-1 (SGD1) |
Y - R*1 P - Y*2 |
Front occupant classification sensor LH power supply line |
Ignition switch ON, a load applied to front occupant classification sensor LH |
4.9 to 5.1 V |
S13-12 (SVC2) - S13-2 (SGD2) |
V - Y*1 BR - SB*2 |
Front occupant classification sensor RH power supply line |
Ignition switch ON, a load applied to front occupant classification sensor RH |
4.9 to 5.1 V |
S13-5 (SVC3) - S13-3 (SGD3) |
G - BR*1 R - L*2 |
Rear occupant classification sensor LH power supply line |
Ignition switch ON, a load applied to rear occupant classification sensor LH |
4.9 to 5.1 V |
S13-6 (SVC4) - S13-4 (SGD4) |
GR - LG*1 B - W*2 |
Rear occupant classification sensor RH power supply line |
Ignition switch ON, a load applied to rear occupant classification sensor RH |
4.9 to 5.1 V |
S13-7 (SIG1) - S13-1 (SGD1) |
P - R*1 BE - Y*2 |
Front occupant classification sensor LH signal line |
Ignition switch ON, a load applied to front occupant classification sensor LH |
0 to 5.1 V |
S13-8 (SIG2) - S13-2 (SGD2) |
GR - Y*1 GR - SB*2 |
Front occupant classification sensor RH signal line |
Ignition switch ON, a load applied to front occupant classification sensor RH |
0 to 5.1 V |
S13-9 (SIG3) - S13-3 (SGD3) |
L - BR*1 G - L*2 |
Rear occupant classification sensor LH signal line |
Ignition switch ON, a load applied to rear occupant classification sensor LH |
0 to 5.1 V |
S13-10 (SIG4) - S13-4 (SGD4) |
SB - LG*1 V - W*2 |
Rear occupant classification sensor RH signal line |
Ignition switch ON, a load applied to rear occupant classification sensor RH |
0 to 5.1 V |
System Diagram
SYSTEM DIAGRAM
1. CAN AND DIRECT LINE SIGNALS
2. INPUT AND OUTPUT SIGNALS OF THE ACCESSORY METER ASSEMBLY
Warning light or indicator light
Communication Signal
Receiver
Communication Line
Sender
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Short in GPS Antenna (B15C0,B15C1)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the navigation antenna assembly.
DTC No.
DTC Detection Condition
Trouble Area
B15C0
Navigation antenna malfunction
...
Seat Position Sensor
Components
COMPONENTS
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
Be sure to follow the correct removal and installation procedures of the seat
position sensor.
PROCEDURE
1. INSPECT SEAT POSITION S ...