LIGHTING SYSTEM > TERMINALS OF ECU

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CHECK ENGINE ROOM NO. 2 RELAY BLOCK (FRONT CONTROLLER)

E108357E01


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
ALTB (2E-1) - Body ground
W - Body ground
Power source circuit
Always
10 to 14 V
BATB (2E-2) - Body ground
W-L - Body ground
Power source circuit
Always
10 to 14 V
FMIG (2E-3) - Body ground
B-Y - Body ground
Engine switch signal circuit
Engine switch on (IG)
10 to 14 V
FMIG (2E-3) - Body ground
B-Y - Body ground
Engine switch signal circuit
Engine switch off
Below 1 V
FMB3 (2E-4) - Body ground
G-R - Body ground
Power source circuit
Always
10 to 14 V
E (2F-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
MPX1 (2F-5) - Body ground
GR-L - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
MPX2 (2F-6) - Body ground
GR-L - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
FOGR (2G-6) - Body ground
G-Y - Body ground
Fog light circuit
(To front fog light RH)
Front fog light ON
10 to 14 V
FOGR (2G-6) - Body ground
G-Y - Body ground
Fog light circuit
(To front fog light RH)
Front fog light OFF
Below 1 V
FOGL (2G-7) - Body ground
G-R - Body ground
Fog light circuit
(To front fog light LH)
Front fog light ON
10 to 14 V
FOGL (2G-7) - Body ground
G-R - Body ground
Fog light circuit
(To front fog light LH)
Front fog light OFF
Below 1 V
CRAR (2G-8) - Body ground
G - Body ground
Taillight circuit
(To clearance light RH)
Light control switch in TAIL
10 to 14 V
CRAR (2G-8) - Body ground
G - Body ground
Taillight circuit
(To clearance light RH)
Light control switch OFF
Below 1 V
CRAL (2G-9) - Body ground
G - Body ground
Taillight circuit
(To clearance light LH)
Light control switch in TAIL
10 to 14 V
CRAL (2G-9) - Body ground
G - Body ground
Taillight circuit
(To clearance light LH)
Light control switch OFF
Below 1 V
HLHR (2G-12) - Body ground
R-W - Body ground
Hi-beam circuit
(To headlight RH)
Headlight dimmer switch in HI
10 to 14 V
HLHR (2G-12) - Body ground
R-W - Body ground
Hi-beam circuit
(To headlight RH)
Headlight dimmer switch in HEAD
Below 1 V
HLHL (2G-13) - Body ground
R-Y - Body ground
Hi-beam circuit
(To headlight LH)
Headlight dimmer switch in HI
10 to 14 V
HLHL (2G-13) - Body ground
R-Y - Body ground
Hi-beam circuit
(To headlight LH)
Headlight dimmer switch in HEAD
Below 1 V

CHECK COWL SIDE JUNCTION BLOCK LH ECU

E107417E11


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
GND (PA-14) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
TR (PA-26) - Body ground
B - Body ground
RH side turn signal
(To turn signal flasher assembly)
Engine switch off
Below 1 V
TR (PA-26) - Body ground
B - Body ground
RH side turn signal
(To turn signal flasher assembly)
Engine switch on (IG) and turn signal switch (right turn) ON
10 to 14 V
(60 to 120 times per minute)
TL (PA-25) - Body ground
L - Body ground
LH side turn signal
(To turn signal flasher assembly)
Engine switch off
Below 1 V
TL (PA-25) - Body ground
L - Body ground
LH side turn signal
(To turn signal flasher assembly)
Engine switch on (IG) and turn signal switch (left turn) ON
10 to 14 V
(60 to 120 times per minute)
SGND (PD-7) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
SGND (PD-8) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
IG (15) - Body ground
-
Engine switch signal circuit
Engine switch on (IG)
10 to 14 V
IG (15) - Body ground
-
Engine switch signal circuit
Engine switch off
Below 1 V
MPX-B (PL-1) - Body ground
G-R - Body ground
Multiplex communication power source circuit
Always
10 to 14 V
ILE (W1-2) - Body ground
L - Body ground
Illumination signal
(To front room light)
Room light switch in DOOR position and room light comes on
Below 1 V
ILE (V1-2) - Body ground
L - Body ground
Illumination signal
(To front room light)
Room light switch in DOOR position and room light comes on
10 to 14 V
RCTY (W1-3) - Body ground
Y - Body ground
Illumination signal
(To room light rear RH)
Spot light rear RH comes on
Below 1 V
RCTY (W1-3) - Body ground
Y - Body ground
Illumination signal
(To room light rear RH)
Room light rear RH goes off
10 to 14 V
LCTY (W1-4) - Body ground
SB - Body ground
Illumination signal
(To room light rear LH)
Room light rear LH comes on
Below 1 V
LCTY (W1-4) - Body ground
SB - Body ground
Illumination signal
(To room light rear LH)
Room light rear LH goes off
10 to 14 V
MPX1 (W3-15) - Body ground
GR - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform

CHECK MULTIPLEX NETWORK BODY ECU

E106665E16


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
GND2 (DD-7) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
LCTY (DA-11) - Body ground
G - Body ground
Illumination signal
(From courtesy switch rear LH)
Rear LH door is closed
10 to 14 V
LCTY (DA-11) - Body ground
G - Body ground
Illumination signal
(From courtesy switch rear LH)
Rear LH door is open
Below 1 V
MPX1 (DA-26) - Body ground
GR - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
GND2 (DD-7) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
IG (15) - Body ground
-
Engine switch signal circuit
Engine switch on (IG)
10 to 14 V
IG (15) - Body ground
-
Engine switch signal circuit
Engine switch off
Below 1 V
ACC (22) - Body ground
-
Engine switch on (ACC) signal circuit
Engine switch off
Below 1 V
ACC (22) - Body ground
-
Engine switch on (ACC) signal circuit
Engine switch on (ACC)
10 to 14 V
BECU (DK-5) - Body ground
G-R - Body ground
Multiplex communication power source circuit
Always
10 to 14 V
HRLY (DL-7) - Body ground
R - Body ground
HEAD signal
(To HEAD relay)
Light control switch OFF or in TAIL
10 to 14 V
HRLY (DL-7) - Body ground
R - Body ground
HEAD signal
(To HEAD relay)
Light control switch in HEAD
Below 1 V
DCTY (V1-14) - Body ground
R - Body ground
Illumination signal
(From driver side courtesy)
Driver's side door is closed
10 to 14 V
DCTY (V1-14) - Body ground
R - Body ground
Illumination signal
(From driver side courtesy)
Driver's side door is open
Below 1 V
RCTY (V1-16) - Body ground
L - Body ground
Illumination signal
(From courtesy switch rear RH)
Rear door is closed
10 to 14 V
RCTY (U1-16) - Body ground
L - Body ground
Illumination signal
(From courtesy switch rear RH)
Rear door is open
Below 1 V
FSPT (L68-15) - Body ground
Y - Body ground
Illumination signal
(To foot lights)
Foot lights come on
Below 1 V
FSPT (L68-15) - Body ground
Y - Body ground
Illumination signal
(To foot lights)
Foot lights go off
10 to 14 V
MPX2 (L68-21) - Body ground
G - Body ground
*1
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
O - Body ground
*2
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
RCTY (V1-16) - Body ground
L - Body ground
Illumination signal
(From courtesy switch front LH)
Passenger's side door is closed
10 to 14 V
PCTY (L68-23) - Body ground
R - Body ground
Illumination signal
(From courtesy switch front LH)
Passenger's side door is open
Below 1 V
HAZ (L67-2) - Body ground
O - Body ground
HAZARD signal
(From hazard switch)
Hazard switch OFF
10 to 14 V
HAZ (L67-2) - Body ground
O - Body ground
HAZARD signal
(From hazard switch)
Hazard switch ON
Below 1 V
CLTE (K67-4) - Body ground
BR - Body ground
Automatic light control sensor ground circuit
Always
Below 1 V
CLTS (L67-5) - Body ground
R - Body ground
Automatic light control sensor ground circuit
Engine switch off
Below 1 V
CLTS (L67-5) - Body ground
R - Body ground
Automatic light control sensor ground circuit
Engine switch on (IG), light control switch in AUTO, headlight comes on
Signal waveform
CLTB (L67-6) - Body ground
W - Body ground
Automatic light control sensor power source circuit
Engine switch off
Below 1 V
CLTB (L67-6) - Body ground
W - Body ground
Automatic light control sensor power source circuit
Engine switch on (IG)
10 to 14 V
HEAD (L67-23) - Body ground
G - Body ground
HEAD signal
(From light control switch)
Light control switch OFF or TAIL
10 to 14 V
HEAD (L67-23) - Body ground
G - Body ground
HEAD signal
(From light control switch)
Light control switch in HEAD
Below 1 V

HINT:
  1. *1: LHD
  2. *2: RHD


CHECK MULTIPLEX NETWORK REAR ECU

E106668E06


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
BCK1 (LA-2) - Body ground
R - Body ground
Back-up light signal
(To luggage compartment door side rear combination light LH and RH)
Engine switch off
Below 1 V
BCK1 (LA-2) - Body ground
R - Body ground
Back-up light signal
(To luggage compartment door side rear combination light LH and RH)
Engine switch on (IG) and shift lever in R position
10 to 14 V
PGND (LF-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
PGND (LF-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
TIL2 (LA-8) - Body ground
V - Body ground
Taillight signal
(To luggage compartment door side rear combination light LH)
Light control switch OFF
Below 1 V
TIL2 (LA-8) - Body ground
V - Body ground
Taillight signal
(To luggage compartment door side rear combination light LH)
Light control switch in TAIL
10 to 14 V
LCE1 (LA-10) - Body ground
GR - Body ground
Taillight signal
(To license plate light LH and RH)
Light control switch OFF
Below 1 V
LCE1 (LA-10) - Body ground
GR - Body ground
Taillight signal
(To license plate light LH and RH)
Light control switch in TAIL
10 to 14 V
TIL1 (LA-22) - Body ground
BR - Body ground
Taillight signal
(To luggage compartment door side rear combination light RH)
Light control switch OFF
Below 1 V
TIL1 (LA-22) - Body ground
BR - Body ground
Taillight signal
(To luggage compartment door side rear combination light RH)
Light control switch in TAIL
10 to 14 V
+BR (2)
-
Power source circuit
Always
10 to 14 V
SG (LC-3) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
ECUB (LC-15) - Body ground
B - Body ground
Multiplex communication power source circuit
Always
10 to 14 V
MPX1 (LC-21) - Body ground
BR - Body ground
Multiplex communication power source circuit
Engine switch on (IG)
Signal waveform
IG (8) - Body ground
-
Power source circuit
Engine switch on (IG)
10 to 14 V
MPX2 (LC-31) - Body ground
GR - Body ground
Multiplex communication power source circuit
Engine switch on (IG)
Signal waveform
STP1 (LA-4) - Body ground
B - Body ground
Stop light switch signal
Brake pedal is released
Below 1 V
STP1 (LA-4) - Body ground
B - Body ground
Stop light switch signal
Brake pedal is depressed
10 to 14 V
PGND (LF-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
TIL2 (LA-8) - Body ground
V - Body ground
Taillight signal
(To body side rear combination light LH)
Light control switch OFF
Below 1 V
TIL2 (LA-8) - Body ground
V - Body ground
Taillight signal
(To body side rear combination light LH)
Light control switch in TAIL
10 to 14 V
STP2 (LG-7) - Body ground
W - Body ground
Taillight signal
(To body side rear combination light LH and RH)
Brake pedal is released
Below 1 V
STP2 (LG-7) - Body ground
W - Body ground
Taillight signal
(To body side rear combination light LH and RH)
Brake pedal is depressed
10 to 14 V
BCK1 (LA-2) - Body ground
R - Body ground
Back-up light signal
(To body side rear combination light LH and RH)
Engine switch off
Below 1 V
BCK1 (LA-2) - Body ground
R - Body ground
Back-up light signal
(To body side rear combination light LH and RH)
Engine switch on (IG) and shift lever in R position
10 to 14 V

CHECK MULTIPLEX NETWORK DOOR ECU FRONT LH

E106666E22


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
GND (O3-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
SIG (O3-3) - GND (O3-1)
Y - W-B
Power source circuit
(From battery)
Engine switch off
Below 1 V
SIG (O3-3) - GND (O3-1)
Y - W-B
Power source circuit
(From battery)
Engine switch on (IG)
10 to 14 V
CPUB (O3-4) - GND (O3-1)
LG - W-B
Power source circuit
(From battery)
Always
10 to 14 V
BDR (O3-6) - GND (O3-1)
L - W-B
Power source circuit
(From battery)
Always
10 to 14 V
MPX1 (O3-8) - Body ground
P - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
MPX2 (O3-9) - Body ground
L - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
CTYB (O3-12) - CYL (O3-11)
L - R
Illumination signal
(To door courtesy light front LH)
Front LH side door is closed
Below 1 V
CTYB (O3-12) - CYL (O3-11)
L - R
Illumination signal
(To door courtesy light front LH)
Front LH side door is open
10 to 14 V
LED+ (O3-14) - LED-(O3-13)
W - W-B
Inside handle illumination signal
(Inside handle illumination front LH)
Front LH side door is closed
Below 1 V
LED+ (O3-14) - LED-(O3-13)
W - W-B
Inside handle illumination signal
(Inside handle illumination front LH)
Front LH side door is open
10 to 14 V

CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH

E106666E16


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
GND (N4-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
SIG (N4-3) - GND (N4-1)
L - W-B
Power source circuit
(From battery)
Engine switch off
Below 1 V
SIG (N4-3) - GND (N4-1)
L - W-B
Power source circuit
(From battery)
Engine switch on (IG)
10 to 14 V
CPUB (N4-4) - GND (N4-1)
LG - W-B
Power source circuit
(From battery)
Always
10 to 14 V
BDR (N4-6) - GND (N4-1)
L - W-B
Power source circuit
(From battery)
Always
10 to 14 V
MPX1 (N3-8) - Body ground
GR - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
MPX2 (N4-9) - Body ground
P - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
CTYB (N4-12) - CYL (N3-11)
L - R
Illumination signal
(To door courtesy light front RH)
Front RH side door is closed
Below 1 V
CTYB (N4-12) - CYL (N4-11)
L - R
Illumination signal
(To door courtesy light front RH)
Front RH side door is open
10 to 14 V
LED+ (N4-14) - LED-(N4-13)
P- W-B
Inside handle illumination signal
(Inside handle illumination front RH)
Front RH side door is closed
Below 1 V
LED+ (N4-14) - LED-(N4-13)
P - W-B
Inside handle illumination signal
(Inside handle illumination front RH)
Front RH side door is open
10 to 14 V
LSW (N3-14) - LSWE (N3-13)
G - LG
Door lock position circuit
Front RH side door is locked
10 to 14 V
LSW (N3-14) - LSWE (N3-13)
G - LG
Door lock position circuit
Front RH side door is unlocked
Below 1 V

CHECK MULTIPLEX NETWORK DOOR ECU REAR LH

E106667E13


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
GND (Q2-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
SIG (Q2-3) - GND (Q2-1)
G - W-B
Power source circuit
(From battery)
Engine switch off
Below 1 V
SIG (Q2-3) - GND (Q2-1)
G - W-B
Power source circuit
(From battery)
Engine switch on (IG)
10 to 14 V
CPUB (Q2-4) - GND (Q2-1)
BR - W-B
Power source circuit
(From battery)
Always
10 to 14 V
BDR (Q2-6) - GND (Q2-1)
L - W-B
Power source circuit
(From battery)
Always
10 to 14 V
MPX1 (Q2-8) - Body ground
GR - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
MPX2 (Q2-9) - Body ground
P - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
CTYB (Q2-12) - CYL (Q2-11)
L - R
Illumination signal
(To door courtesy light front LH)
Rear LH side door is closed
10 to 14 V
CTYB (Q2-12) - CYL (Q2-11)
L - R
Illumination signal
(To door courtesy light front LH)
Rear LH side door is open
Below 1 V
LED+ (Q2-14) - LED- (Q2-13)
V - W-B
Illumination signal
(To ashtray illumination rear LH)
Rear LH side door is open
10 to 14 V
LED+ (Q2-14) - LED- (Q2-13)
V - W-B
Illumination signal
(To ashtray illumination rear LH)
Rear LH side door is closed
Below 1 V
LSW (Q3-14) - LSWE (Q3-13)
LG - W-B
Door lock position circuit
Rear LH door is locked
10 to 14 V
LSW (Q3-14) - LSWE (Q3-13)
LG - W-B
Door lock position circuit
Rear LH door is unlocked
Below 1 V

CHECK MULTIPLEX NETWORK DOOR ECU REAR RH

E106667E14


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
GND (N4-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
SIG (N4-3) - GND (N4-1)
L - W-B
Power source circuit
(From battery)
Engine switch off
Below 1 V
SIG (N4-3) - GND (N4-1)
L - W-B
Power source circuit
(From battery)
Engine switch on (IG)
10 to 14 V
CPUB (N4-4) - GND (N4-1)
G - W-B
Power source circuit
(From battery)
Always
10 to 14 V
BDR (N4-6) - GND (N4-1)
L - W-B
Power source circuit
(From battery)
Always
10 to 14 V
MPX1 (N4-8) - Body ground
GR - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
MPX2 (N4-9) - Body ground
P - Body ground
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
CTYB (N4-12) - CYL (N4-11)
L - R
Illumination signal
(To door courtesy light front RH)
Rear RH side door is closed
10 to 14 V
CTYB (N4-12) - CYL (N4-11)
L - R
Illumination signal
(To door courtesy light front RH)
Rear RH side door is open
Below 1 V
LED+ (N4-14) - LED- (N4-13)
P - W-B
Illumination signal
(To ashtray illumination rear LH)
Rear RH side door is closed
10 to 14 V
LED+ (N4-14) - LED- (N4-13)
P - W-B
Illumination signal
(To ashtray illumination rear LH)
Rear RH side door is open
Below 1 V
LSW (N3-14) - LSWE (N3-13)
G - LG
Door lock position circuit
Rear RH door is locked
10 to 14 V
LSW (N3-14) - LSWE (N3-13)
G - LG
Door lock position circuit
Rear RH door is unlocked
Below 1 V

CHECK COMBINATION SWITCH ASSEMBLY (WINDSHIELD WIPER SWITCH)

E106675E09


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
B (L22-1) - E (L22-5)
GR - W-B
Power source circuit
(From battery)
Always
10 to 14 V
IG (L22-2) - E (L22-5)
LG - W-B
Engine switch signal circuit
(From engine switch)
Engine switch off
Below 1 V
IG (L22-2) - E (L22-5)
LG - W-B
Engine switch signal circuit
(From engine switch)
Engine switch on (IG)
10 to 14 V
HEAD (L22-4) - Body ground
V - Body ground
Light control switch HEAD signal
Light control switch not in HEAD
10 to 14 V
HEAD (L22-4) - Body ground
V - Body ground
Light control switch HEAD signal
Light control switch in HEAD
Below 1 V
E (L22-5) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
MPX1 (L22-6) - Body ground
G - Body ground*1
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
O - Body ground*2
MPX2 (L22-7) - Body ground
O - Body ground*1
Multiplex communication signal circuit
Engine switch on (IG)
Signal waveform
R - Body ground*2

HINT:
  1. *1: LHD
  2. *2: RHD


CHECK AFS ECU

E107316E04


Symbols (Terminal No.)
Wiring Color
Terminal Description
Condition
Specified Condition
SBF (A30-1) - SGF (A20-17)
G-R - G
Vehicle height signal (To height control sensor)
Engine switch off
Below 1 V
Engine switch on (IG)
4.5 V to 5.5 V
SHFL (A30-2) - SGF (A30-17)
G-B - G
Vehicle height signal (To height control sensor)
Engine switch off
Below 1 V
Engine switch on (IG), the vehicle is still or bounced
0.5 V to 4.5 V
SPDL (A30-6) - E1 (A31-1)
R-L - W-B
Vehicle speed signal
(To skid control ECU)
Vehicle is driving at approx. 30 km/h (19 mph)
Pulse generation
(see waveform 1)
SPDR (A30-7) - E1 (A31-1)
G-W - W-B
Vehicle speed signal
(To skid control ECU)
Vehicle is driving at approx. 30 km/h (19 mph)
Pulse generation
(see waveform 1)
BR1+ (A30-9) - BR1- (A30-10)
LG-R - O
Headlight swivel motor RH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, driving at more than 10 km/h (6 mph) and turning the steering wheel to right more than 7.5°
Pulse generation
(see waveform 2)
BR2+ (A30-11) - BR2- (A30-12)
L-B - L-Y
Headlight swivel motor RH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, driving at more than 10 km/h (6 mph) and turning the steering wheel to right more than 7.5°
Pulse generation
(see waveform 2)
LR1+ (A30-13) - LR1- (A30-14)
L - BR-W
Headlight leveling actuator RH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, the vehicle is standing still or bounding
Pulse generation
(see waveform 3)
LR2+ (A30-15) - LR2- (A30-16)
P - LG
Headlight leveling actuator RH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, the vehicle is standing still or bounding
Pulse generation
(see waveform 3)
SGF (A30-17) - E1 (A31-1)
G - W-B
Vehicle height signal (To height control sensor)
Always
Below 1 V
SMGR (A30-18) - E1 (A31-1)
W-R - W-B
Headlight swivel motor RH
Always
Below 1 V
SMGL (A30-19) - E1 (A31-1)
P-G - W-B
Headlight swivel motor LH
Always
Below 1 V
SMBR (A30-21) - SMGR (A30-18)
GR - W-R
Headlight swivel motor RH
Engine switch off
Below 1 V
Engine switch on (IG)
4.5 V to 5.5 V
SMBL (A30-22) - SMGL (A30-19)
W - P-G
Headlight swivel motor LH
Engine switch off
Below 1 V
Engine switch on (IG)
4.5 V to 5.5 V
SMR (A30-23) - SMGR (A30-18)
G-B - W-R
Headlight swivel motor RH
Engine switch off
Below 1 V
Engine switch on (IG)
0.3 V to 4.6 V
SML (A30-24) - SMGL (A30-19)
Y - P-G
Headlight swivel motor LH
Engine switch off
Below 1 V
Engine switch on (IG)
0.3 V to 4.6 V
BL1+ (A30-25) - BL1-(A30-26)
B-L - L-W
Headlight swivel motor LH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, driving at more than 10 km/h (6 mph) and turning the steering wheel to left more than 7.5°
Pulse generation
(see waveform 2)
BL2+ (A30-27) - BL2-(A30-28)
L-R - V
Headlight swivel motor LH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, driving at more than 10 km/h (6 mph) and turning the steering wheel to left more than 7.5°
Pulse generation
(see waveform 2)
LL1+ (A30-29) - LL1-(A30-30)
R-G - G
Headlight leveling actuator LH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, the vehicle is still or bounced
Pulse generation
(see waveform 3)
LL2+ (A30-31) - LL2-(A30-32)
Y-R - V-R
Headlight leveling actuator LH
Engine switch off
Below 1 V
Engine running, light control switch in HEAD, the vehicle is standing still or bouncing
Pulse generation
(see waveform 3)
E1 (A31-1) - Body ground
W-B - Body ground
Ground
Always
Below 1 V
IG (A31-2) - E1 (A31-1)
B - Body ground
Power source circuit
(To engine switch)
Engine switch off
Below 1 V
Engine switch on (IG)
10 to 14 V
MPX1 (A31-5) - E1 (A31-1)
-
Multiplex communication signal
Engine switch on (IG)
Signal waveform
MPX2 (A31-6) - E1 (A31-1)
-
Multiplex communication signal
Engine switch on (IG)
Signal waveform
SS+ (A31-7) - SS- (A31-8)
*1
L - Y
Steering sensor signal
(To position sensor)
Engine idling, slowly turn steering wheel
Pulse generation
SS+ (A31-7) - SS- (A31-8)
*2
L - LG
Steering sensor signal
(To steering control ECU)
Engine idling, slowly turn steering wheel
Pulse generation
SHRL (A31-9) - SGR (A31-20)
B-W - R-Y
Vehicle height signal
(To height control sensor rear)
Engine switch off
Below 1 V
Engine switch on (IG), bounce the vehicle
0.5 to 4.5 V
SBR (A30-10) - SGR (A30-20)
W - R-Y
Vehicle height signal
(To height control sensor rear)
Engine switch off
Below 1 V
Engine switch on (IG)
4.5 to 5.5 V
SBF (A30-1) - SGF (A30-17)
G-R - G
Vehicle height signal
(To height control sensor front)
Engine switch off
Below 1 V
Engine switch on (IG)
4.5 to 5.5 V
SBR (A31-10) - SGR (A31-20)
W - R-Y
Vehicle height signal
(To height control sensor rear)
Always
Below 1 V
SBF (A30-1) - SGF (A30-17)
G-R - G
Vehicle height signal
(To height control sensor front)
Always
Below 1 V

HINT:
  1. *1: 3UZ-FE
  2. *2: 3GR-FE, 3GR-FSE



    E038308E01

  1. Waveform 1
    Item
    		Contents
    Symbols (Terminal No.)
    		SPDL(A30-6) - E1(A31-1)
    SPDR(A30-7) - E1(A31-1)
    Vehicle Condition
    		Vehicle is driving at approximately 30 km/h (19 mph)



    2. E109833

  2. Waveform 2
    Item
    		Contents
    Symbols (Terminal No.)
    		BL1+(A30-25) - BL1-(A30-26)
    BL2+(A30-27) - BL2-(A30-28)
    BR1+(A30-9) - BR1-(A30-10)
    BR2+(A30-11) - BR2-(A30-12)
    Tool Setting
    		10 V / DIV., 5 msec. / DIV.
    Vehicle Condition
    1. Engine running, light control switch in HEAD, driving at more than 10 km/h (6 mph) and turning the steering wheel more than 7.5°
    2. If value is not within standard range, it is possible there is some defect on vehicle side
      Inspect fuse, wire harness and connector



    3. E109834

  3. Waveform 3
    Item
    		Contents
    Symbols (Terminal No.)
    		LR1+(A30-13) - LR1-(A30-14)
    LR2+(A30-15) - LR2-(A30-16)
    LL1+(A30-29) - LL1-(A30-30)
    LL2+(A30-31) - LL2-(A30-32)
    Tool Setting
    		10 V / DIV., 5 msec. / DIV.
    Vehicle Condition
    1. Engine running, light control switch in HEAD, driving at more than 10 km/h (6 mph) and turning the steering wheel more than 7.5°
    2. If value is not within standard range, it is possible there is some defect on vehicle side
      Inspect fuse, wire harness and connector