Toyota Sequoia (2005). Manual — part 493
–
DIAGNOSTICS
BODY CONTROL SYSTEM
DI–1767
1961
Remote control mirror switch circuit (w/ Driving position memory)
CIRCUIT DESCRIPTION
The remote control mirror switch has different levels of resistance depending on the switch position.
The body ECU senses the switch position through the resistance of the remote control mirror switch.
The body ECU sends an up/down/right/left signal to the driver door ECU and the passenger door ECU via
BEAN.
The mirror’s driving position and retract position are directly controlled by the remote control mirror switch.
DID9C–01
I28524
A
B
C
D
F
P
1
2
3
4
5
6
7
8
28
29
30
8
7
1
1
6
20
13
14
13
14
P
P
P–L
A
B
B
B
Y
Y
Y
Y
M+
MSW
E
B
MF
8
MR
E2
R5
Remote Control
Mirror Switch
Body ECU
MIRB
MIRS
MIRE
G–B
LG–B
Instrument Panel J/B
J14
J15
J/C
1C
1E
1L
1C
1
2
CIG
AM1
F10
FL Block
I18
Ignition Switch
R18
Remote Control Mirror RH
B5
B5
B5
LG
LG
LG
LG
W–B
IM
MF
MR
J6
J6
J6
J6
J7
J7
AM1
ACC
1
3
W–L
W
ALT
B
II1
II1
R17
Remote Control Mirror LH
Battery
*1
*1
J/C
(*1): Control Circuit
MF
MR
DI–1768
–
DIAGNOSTICS
BODY CONTROL SYSTEM
1962
WIRING DIAGRAM
–
DIAGNOSTICS
BODY CONTROL SYSTEM
DI–1769
1963
INSPECTION PROCEDURE
HINT:
When using the hand–held tester, start the inspection from step 1 and when not using the hand–held tester,
start from step 2.
1
Check remote mirror control switch using hand–held tester.
PREPARATION:
(a)
Connect the hand–held tester to the DLC3.
(b)
Turn the ignition switch ON.
CHECK:
According to the display on the tester, read the ”DATA LIST”.
BODY ECU:
Item
Measurement Item/Display
(Range)
Normal Condition
Diagnostic Note
MIRR SEL SW R
Remote control mirror switch pas-
senger side/ON or OFF
ON: Remote control mirror switch
passenger side is selected
OFF: Remote control mirror switch
passenger side is not selected
–
MIRR SEL SW L
Remote control mirror switch driv-
er side/ON or OFF
ON: Remote control mirror switch
driver side is selected
OFF: Remote control mirror switch
driver side is not selected
–
MIRR POS SW R
Remote control mirror switch R
position/ON or OFF
ON: Remote control mirror switch
R position is selected
OFF: Remote control mirror switch
R position is not selected
–
MIRR POS SW L
Remote control mirror switch L
position/ON or OFF
ON: Remote control mirror switch
L position is selected
OFF: Remote control mirror switch
L position is not selected
–
MIRR POS SW UP
Remote control mirror switch UP
position/ON or OFF
ON: Remote control mirror switch
UP position is selected
OFF: Remote control mirror switch
UP position is not selected
–
MIRR POS SW DWN
Remote control mirror switch
DOWN position/ON or OFF
ON: Remote control mirror switch
DOWN position is selected
OFF: Remote control mirror switch
DOWN position is not selected
–
OK:
The indication on the tester switches between ON and OFF in accordance with the remote con-
trol mirror switch status.
OK
Proceed to next circuit inspection shown in
problem symptoms table (See page
NG
DI–1770
–
DIAGNOSTICS
BODY CONTROL SYSTEM
1964
2
Check remote control mirror switch (See page
NG
Replace remote control mirror switch.
OK
3
Check voltage between remote control mirror switch and battery, remote control
mirror switch and body ground.
PREPARATION:
(a)
Disconnect the remote control mirror switch connector.
(b)
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals R5–6 (B) and R5–2 (E) of the remote control mirror switch.
OK:
Voltage: 10 to 14 V
NG
Repair or replace harness or connector.
OK
4
Check wire harness and connector between remote control mirror switch and re-
mote control mirror (See page
).
NG
Repair or replace harness or connector.
OK
5
Check retract motor operation (See page
).
NG
Replace remote control mirror.
OK
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