LT-92
REAR FOG LAMP
Preliminary Check
EKS00P4N
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES
Check for blown fuses.
Refer toLT-89, "Wiring Diagram—R/FOG—".
OK or NG
OK >> GO TO 2.
NO >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer toPG-4, "
POWER SUPPLY ROUTING CIRCUIT".
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCMBattery G
Ignition switch ON or START position 1
Combination meterBattery 19
Ignition switch ON or START position 14
Terminal Ignition switch position
(+)
(-) OFF ACC ON
Connector Terminal
M42 3
Ground0V 0VBattery
voltage
M44 57Battery
voltageBattery
voltageBattery
voltage
SKIB6233E
Connector Terminal
GroundContinuity
M44 55 Yes
SKIB6293E
TURN SIGNAL AND HAZARD WARNING LAMPS
LT-97
C
D
E
F
G
H
I
J
L
MA
B
LT
TURN SIGNAL AND HAZARD WARNING LAMPSPFP:26120
Component Parts and Harness Connector LocationEKS00P85
System DescriptionEKS00P86
OUTLINE
Power is supplied at all times
lthrough 50A fusible link (letter G, located in fuse and fusible link box)
lto BCM (body control module) terminal 57,
lthrough 10A fuse [No. 19, located in fuse block (J/B)]
lto combination meter terminal 3.
When the ignition switch is in the ON or START position, power is supplied
lthrough 10A fuse [No. 1, located in fuse block (J/B)]
lto BCM terminal 3,
lthrough 10A fuse [No. 14, located in fuse block (J/B)]
lto combination meter terminal 16.
Ground is supplied
lto BCM terminal 55 and
lto combination meter terminal 23
lthrough grounds M21, M80 and M83.
TURN SIGNAL OPERATION
LH Turn
When the turn signal switch is moved to the left position, BCM receives input signal requesting left turn signals
to flash.
BCM then supplies power
lthrough BCM terminal 47
lto front combination lamp LH terminal 1
PKIC1407E
LT-98
TURN SIGNAL AND HAZARD WARNING LAMPS
lto side turn signal lamp LH terminal 1 and
lto rear combination lamp LH terminal 2.
Ground is supplied
lto front combination lamp LH terminal 2
lto side turn signal lamp LH terminal 2 and
lto rear combination lamp LH terminal 3
lthrough ground E21, E41 and E61.
The BCM also supplies input to combination meter terminals 11 and 12 through the CAN communication. This
input is processed by unified meter control unit in combination meter, which in turn supplies ground to the left
turn signal indicator lamp.
With power and input supplied, BCM controls flashing of LH turn signal lamps.
RH Turn
When the turn signal switch is moved to the right position, BCM receives input signal requesting right turn sig-
nals to flash.
BCM then supplies power
lthrough BCM terminal 48
lto front combination lamp RH terminal 1
lto side turn signal lamp RH terminal 1 and
lto rear combination lamp RH terminal 2.
Ground is supplied
lto front combination lamp RH terminal 2
lto side turn signal lamp RH terminal 2 and
lto rear combination lamp RH terminal 3
lthrough ground E21, E41 and E61.
The BCM also supplies input to combination meter terminals 11 and 12 through the CAN communication. This
input is processed by unified meter control unit in combination meter, which in turn supplies ground to the right
turn signal indicator lamp.
With power and input supplied, BCM controls flashing of RH turn signal lamps.
HAZARD LAMP OPERATION
Power is supplied at all times
lthrough 50A fusible link (letter G, located in fuse and fusible link box)
lto BCM terminal 57,
lthrough 10A fuse [No. 19, located in fuse block (J/B)]
lto combination meter terminal 3.
Ground is supplied
lto BCM terminal 55 and
lto combination meter terminal 23
lthrough grounds M21, M80 and M83.
When the hazard switch is depressed, ground is supplied
lto BCM terminal 33
lthrough hazard switch terminal 2
lthrough hazard switch terminal 1
lthrough grounds M21, M80 and M83.
When the hazard switch is depressed, BCM receives input signal requesting turn signals to flash.
BCM then supplies power
lthrough BCM terminal 47
lto front combination lamp LH terminal 1
lto side turn signal lamp LH terminal 1 and
lto rear combination lamp LH terminal 2,
lthrough BCM terminal 48
TURN SIGNAL AND HAZARD WARNING LAMPS
LT-103
C
D
E
F
G
H
I
J
L
MA
B
LT
How to Proceed With Trouble DiagnosisEKS00P8A
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer toLT-97, "
System Description".
3. Perform preliminary check. Refer toLT- 1 0 3 , "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Do turn signal and hazard warning lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckEKS00P8B
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES OR FUSIBLE LINK
Check for blown fuses or fusible link.
Refer toLT-100, "Wiring Diagram—TURN—".
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer toPG-4, "
POWER SUPPLY ROUTING CIRCUIT".
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCMBattery G
Ignition switch ON or START position 1
Combination meterBattery 19
Ignition switch ON or START position 14
Terminal Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTerminal
M42 3
Ground0V 0VBattery
voltage
M44 57Battery
voltageBattery
voltageBattery
voltage
SKIB6233E
PARKING, LICENSE PLATE AND TAIL LAMPS
LT-125
C
D
E
F
G
H
I
J
L
MA
B
LT
PARKING, LICENSE PLATE AND TAIL LAMPSPFP:26550
Component Parts and Harness Connector LocationEKS00P9C
System DescriptionEKS00P9D
Control of the clarence, license plate, and tail lamps operation is dependent upon the position of the lighting
switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body control
module) receives input signal requesting the clarence, license plate and tail lamps to illuminate. This input sig-
nal is communicated to the IPDM E/R (intelligent power distribution module engine room) through the CAN
communication. The CPU (central processing unit) of the IPDM E/R controls the tail lamp relay coil. This relay,
when energized, directs power to the clarence, license plate and tail lamps, which then illuminate.
OUTLINE
Power is supplied at all times
lto ignition relay (located in IPDM E/R) and
lto tail lamp relay (located in IPDM E/R), from battery directly,
lthrough 20A fuse (No. 52, located in IPDM E/R) and
lthrough 20A fuse (No. 53, located in IPDM E/R)
lto CPU (located in IPDM E/R),
lthrough 50A fusible link (letter G, located in fuse and fusible link box)
lto BCM terminal 57.
With the ignition switch in the ON or START position, power is supplied
lto ignition relay (located in IPDM E/R),
lthrough 10A fuse [No. 1, located in fuse block (J/B)]
lto BCM terminal 3.
Ground is supplied
lto BCM terminal 55
lthrough grounds M21, M80 and M83,
lto IPDM E/R terminals 38 and 59
SKIB6529E
LT-136
PARKING, LICENSE PLATE AND TAIL LAMPS
How to Proceed With Trouble Diagnosis
EKS00P9M
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer toLT- 1 2 5 , "
System Description".
3. Carry out the Preliminary Check. Refer toLT- 1 3 6 , "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Do the clarence, license plate and tail lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckEKS00P9N
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES OR FUSIBLE LINK
Check for blown fuses or fusible link.
Refer toLT-128, "Wiring Diagram—TAIL/L—".
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer toPG-4, "
POWER SUPPLY ROUTING CIRCUIT".
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCMBattery G
Ignition switch ON or START position 1
IPDM E/R Battery52
53
36
37
Terminal Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTerminal
M42 3
Ground0V 0VBattery
voltage
M44 57Battery
voltageBattery
voltageBattery
voltage
SKIB6233E
INTERIOR ROOM LAMP
LT-145
C
D
E
F
G
H
I
J
L
MA
B
LT
INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationEKS00P92
*1: LHD models, *2: RHD models
System DescriptionEKS00P93
When front map lamp and room lamp switch is in DOOR position, front map lamp and room lamp ON/OFF is
controlled by timer according to signals from switches including key switch, front door switch (driver side), rear
door switch (driver side)No.1*, rear door switch (driver side)No.2*, unlock signal from keyfob, ignition switch.
When front map lamp and room lamp turns ON, there is a gradual brightening over 1 second. When front map
lamp and room lamp turns OFF, there is a gradual dimming over 1 second.
Front map lamp and room lamp timer is controlled by the BCM (body control module).
Front map lamp and room lamp timer control settings can be changed with CONSULT-II.
*: Only king cab
POWER SUPPLY AND GROUND
Power is supplied at all times
lthrough 50A fusible link (letter G, located in fuse and fusible link box)
lto BCM terminal 57,
lthrough 10A fuse [No. 22, located in fuse block (J/B)]
SKIB6844E
LT-146
INTERIOR ROOM LAMP
lto key switch terminal 2,
lthrough 10A fuse [No. 21, located in fuse block (J/B)]
lto BCM terminal 41.
When key is inserted in key switch, power is supplied
lthrough the key switch terminal 1
lto BCM terminal 5.
With ignition switch in the ON or START position, power is supplied
lthrough 10A fuse [No. 1, located in fuse and block (J/B)]
lto BCM terminal 3.
Ground is supplied
lto BCM terminal 55
lthrough grounds M21, M80 and M83.
When front driver side door is opened, ground is supplied (double cab)
lto BCM terminal 15
lthrough front door switch driver side terminal 2
lthrough case ground of front door switch driver side.
When front passenger side door is opened, ground is supplied (double cab)
lto BCM terminal 14
lthrough front door switch passenger side terminal 2
lthrough case ground of front door switch passenger side.
When rear door LH is opened, ground is supplied (double cab)
lto BCM terminal 16
lthrough rear door switch LH terminal 2
lthrough case ground of rear door switch LH.
When rear door RH is opened, ground is supplied (double cab)
lto BCM terminal 12
lthrough rear door switch RH terminal 2
lthrough case ground of rear door switch RH.
When front driver side door is opened, ground is supplied (king cab)
lto BCM terminal 15
lthrough front door switch (driver side) terminal 2
lthrough front door switch (driver side) terminal 3
lthrough grounds B9 and B25 (LHD models)
lthrough grounds B106 and B121 (RHD models).
When front passenger side door is opened, ground is supplied (king cab)
lto BCM terminal 14
lthrough front door switch (passenger side) terminal 2
lthrough front door switch (passenger side) terminal 3
lthrough grounds B9 and B25 (LHD models)
lthrough grounds B106 and B121 (RHD models).
When rear door (driver side) is opened, ground is supplied (king cab)
lto BCM terminal 15
lthrough rear door switch (driver side) No.1 and No.2 terminals 1
lthrough rear door switch (driver side) No.1 and No.2 terminals 2
lthrough grounds B9 and B25 (LHD models)
lthrough grounds B106 and B121 (RHD models).
When rear door (passenger side) is opened, ground is supplied (king cab)
lto BCM terminal 14
lthrough rear door switch (passenger side) No.1 and No.2 terminals 1