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DI-514
DIAGNOSTICS - BODY CONTROL SYSTEM
DI1OG-19
TERMINALS OF ECU
B17 B16 R1
1 15
I09495
Symbols (Terminal No.) Wiring Color Condition STD Voltage (V)
HORN SW (B16 1) -
(B16-1) Horn switch OFF 10 - 14
G-R
GR
Body ground Horn switch ON Below 1.0
Key unlock warning switch OFF (Key not inserted) 10 - 14
KSW (B16 2) - B d ground
(B16-2) Body d Y-R
YR
Key unlock warning switch ON (Key inserted) Below 1.0
Rear window defogger operating Below 2.0
DIND (B16 3) - B d ground
(B16-3) Body d LG-R
LG R
Rear window defogger not operating 10 - 14
Back door power window switch OFF or UP position 10 - 14
DOWN (B16 4) - B d ground
(B16-4) Body d R-B
RB
Back door power window switch DOWN position Below 1.0
Back door power window switch OFF or DOWN position 10 - 14
UP (B16 5) - Body ground
(B16-5) B d d R
Back door power window switch UP position Below 1.0
Ignition switch OFF Below 1.0
ACC (B16 9) - Body ground
(B16-9) B d d GR
Ignition switch ACC or ON 10 - 14
ECU-B (B16-10) -
L-R Constant 10 - 14
Body ground
Driver and passenger door key lock & unlock switch OFF or
10 - 14
UNLOCK position
L2 (B16 11) - B d ground
(B16-11) Body d BR-W
BR W
Driver or passenger door key lock & unlock switch LOCK posi-
Below 1.0
tion
Passenger door key lock & unlock switch OFF or LOCK position 10 - 14
UL2 (B16 12) - B d ground
(B16-12) Body d G-Y
GY
Passenger door key lock & unlock switch UNLOCK position Below 1.0
Driver door key lock & unlock switch OFF or LOCK position 10 - 14
UL3 (B16 13) - B d ground
(B16-13) Body d L-B
LB
Driver door key lock & unlock switch UNLOCK position Below 1.0
Driver door unlock detection switch OFF (Locked) 10 - 14
LSWP (B16 14) - B d ground
(B16-14) Body d L-Y
LY
Driver door unlock detection switch ON (Unlocked) Below 1.0
Rear door courtesy switch OFF (Closed) 10 - 14
RCTY (B16 15) - B d ground
(B16-15) Body d B-R
BR
Any rear door courtesy switch ON (Open) Below 1.0
Passenger door courtesy switches OFF (Closed) 10 - 14
PCTY (B16 16) - Body ground
(B16-16) B d d B-W
BW
Passenger door courtesy switch ON (Open) Below 1.0
Driver door unlock detection switch OFF (Locked) 10 - 14
LSWD (B16 17) - Body ground
(B16-17) B d d R-L
RL
Driver door unlock detection switch ON (Unlocked) Below 1.0
2002 4RUNNER (RM887U)
Author : Date : 690
DI-515
DIAGNOSTICS - BODY CONTROL SYSTEM
DEF SW (B16 18) -
(B16-18) Rear defogger switch OFF 10 - 14
LG-B
LG B
Body ground Rear defogger switch ON Below 1.0
Driver door courtesy switch OFF (Closed) 10 - 14
DCTY (B16 19) - B d ground
(B16-19) Body d B
Driver door courtesy switch ON (Open) Below 1.0
R/W ON (B16 20) -
(B16-20) Rear wiper switch OFF or INT 10 - 14
GR-G
GR G
Body ground Rear wiper switch ON Below 1.0
R/W INT (B16 21) -
(B16-21) Rear wiper switch OFF or ON 10 - 14
GR-R
GR R
Body ground Rear wiper switch INT Below 1.0
B/D CTY (B16-22) -
(B16 22) Back door courtesy switch OFF (Closed) 10 - 14
G-W
GW
Body ground Back door courtesy switch ON (Open) Below 1.0
Power door lock operating to LOCK 10 - 14
ACTD (B16 23) - B d ground
(B16-23) Body d B-Y
BY
Power door lock not operating or operating to UNLOCK Below 1.0
SEC IND (B17 1) -
(B17-1) Security indicator light lights up 10 - 14
L
Body ground Security indicator dies not light up Below 1.0
Security horn sounding 10 - 14
SH (B17 2) - Body ground
(B17-2) B d d R-W
RW
Security horn not sounding Below 1.0
R2
R* Headlight relay OFF 10 - 14
HRY (B17 3) - Body ground
(B17-3) B d d
G*3 Headlight relay ON Below 1.0
Taillight relay OFF 10 - 14
TRY (B17 4) - Body ground
(B17-4) B d d R-G
RG
Taillight relay ON Below 1.0
HOOD SW (B17-7) -
(B17 7) Hood courtesy switch OFF (Closed) 10 - 14
GO
G-O
Body ground Hood courtesy switch ON (Open) Below 1.0
Rear door unlock detection switch OFF (Locked) 10 - 14
LSWR (B17 8) - Body ground
(B17-8) B d d LG
Rear door unlock detection switch ON (Unlocked) Below 1.0
Horn switch OFF Below 1.0
HORN (R1 1) - GND (R1 8)
(R1-1) (R1-8) -
Horn switch ON 10 - 14
POWER (R1-3) - GND (R1-8) - Constant 10 - 14
Ignition switch OFF or ACC*1 Below 1.0
P/W (R1 2) - GND (R1-8)
(R1-2) (R1 8) -
Ignition switch ON 10 - 14
Rear defogger not operating 10 - 14
DEF (R1 4) - GND (R1 8)
(R1-4) (R1-8) -
Rear defogger operating Below 1.0
HAZ (R1-7) - GND (R1-8) - Constant 10 - 14
GND (R1-8) - Body ground - Constant Below 1.0
Ignition switch OFF or ACC Below 1.0
WIP (R1 9) GND (R1 8)
(R1-9) (R1-8) -
Ignition switch ON 10 - 14
ECU IG (R1-10)
ECU-IG (R1 10) - Ignition switch OFF or ACC Below 1.0
-
GND (R1-8) Ignition switch ON 10 - 14
Driver or passenger door lock control switch OFF or UNLOCK 10 - 14
L1 (R1 11) - GND (R1 8)
(R1-11) (R1-8) -
Driver or passenger door lock control switch LOCK Below 1.0
Driver or passenger door lock control switch OFF or LOCK 10 - 14
UL1 (R1 12) - GND (R1 8)
(R1-12) (R1-8) -
Driver or passenger door lock control switch UNLOCK Below 1.0
Rear washer switch OFF 10 - 14
WMTR (R1 13) - GND (R1-8)
(R1-13) (R1 8) -
Rear washer switch ON Below 1.0
Power door lock not operating or operating to UNLOCK Below 1.0
ACT+ (R1-14)
ACT (R1 14) - GND (R1 8)
(R1-8) -
Power door lock operating to LOCK 10 - 14
2002 4RUNNER (RM887U)
Author : Date : 691
DI-516
DIAGNOSTICS - BODY CONTROL SYSTEM
Power door lock not operating or operating to LOCK Below 1.0
ACT- (R1-15)
ACT (R1 15) - GND (R1-8)
(R1 8) -
Power door lock operating to UNLOCK twice 10 - 14
*1 (Exceptions): During 60 seconds after the ignition switch is turned ON to OFF (ACC) or until driver or pas-
senger door is opened after the ignition switch is turned ON to OFF (ACC).
*2: w/o Daytime running light
*3: w/ Daytime running light
2002 4RUNNER (RM887U)
Author : Date : 692
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