LT-100
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2005 July 2005 FX
How to Proceed With Trouble DiagnosisAKS007D2
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 9 1 , "
System Description" .
3. Perform preliminary check. Refer to LT- 1 0 0 , "
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 CheckAKS007D3
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 9 6 , "
Wiring Diagram — TURN —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
49 B Ground ON — Approx. 0V
52 B Ground ON — Approx. 0V
55 G Battery power supply OFF — Battery voltage
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
Rear combination lamp control unit Battery 20
STOP LAMP LT-123
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Stop Lamp Does Not OperateAKS007IJ
1. CHECK TAIL LAMP AND TURN SIGNAL LAMP
Make sure tail lamps and turn signal lamps is illuminated.
OK or NG
OK >> GO TO 2.
NG >> GO TO 6.
2. CHECK FUSE
Check fuse No.20 is blow out.
OK or NG
OK >> GO TO 3.
NG >> If fuse is blow out, be sure to eliminate cause of problem before installing new fuse.
3. CHECK INPUT SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between rear combination lamp control unit har- ness connector and ground.
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> GO TO 4.
4. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch harness connector E210 terminal 1 (GY) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
Te r m i n a l
(-) Condition Voltage
(+)
Connector Terminal
(Wire color)
B65 3 (P) Ground Stop lamp switch is ON.
(Depressed) Battery
voltage
Stop lamp switch is OFF. (Released) Approx. 0
PKIA5233E
1 (GY) – Ground : Battery voltage.
PKIA5234E
PARKING, LICENSE PLATE AND TAIL LAMPS LT-129
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PARKING, LICENSE PLATE AND TAIL LAMPSPFP:26550
Component Parts and Harness Connector LocationAKS007O7
System DescriptionAKS007DT
Control of the parking, license plate, side marker and tail lamp 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 parking, license plate, side marker and tail lamps to illumi-
nate. This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room)
across the CAN communication lines. CPU (central processing unit) located in the IPDM E/R controls the tail
lamp relay coil. This relay, when energized, directs power to the parking, license plate, side marker and tail
lamps, which then illuminate.
The current that flows by Rear combination lamp control unit is controlled, and a tail lamp (LED) is made to
turn ON.
OUT LINE
Power is supplied at all times
through 10A fuse (No. 71, located in IPDM E/R)
to tail lamp relay, located in IPDM E/R, and
to CPU located in IPDM E/R,
PKIB3478E
LT-130
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2005 July 2005 FX
through 15A fuse (No. 78, located in IPDM E/R)
to CPU located in IPDM E/R.
Power is also supplied at all times
through 50A fusible link (letter M, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 15A fuse [No. 22, located in fuse block (J/B)]
to BCM terminal 42,
through 10A fuse [No. 20, located in fuse block (J/B)]
to rear combination lamp control unit terminal 1,
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8, and
to unified meter and A/C amp. terminal 21.
With ignition switch in ON or START position, power is supplied
through ignition relay, located in IPDM E/R, from battery direct,
through 15A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38,
through 10A fuse [No. 14, located in fuse block (J/B)]
to combination meter terminal 7,
through 10A fuse [No. 12, located in fuse block (J/B)]
to unified meter and A/C amp. terminal 22.
With ignition switch in ACC or ON position, power is supplied
through 10A fuse [No. 6, located in fuse block (J/B)]
to BCM terminal 11.
Ground is supplied
to BCM terminals 49 and 52
through grounds M35, M45 and M85,
to IPDM E/R terminals 38 and 60
through grounds E21, E50 and E51,
to rear combination lamp control unit terminal 7
through grounds E21, E50 and E51,
to combination meter terminals 5, 6 and 15
through grounds M35, M45 and M85,
to unified meter and A/C amp. terminals 29 and 30
through grounds M35, M45 and M85.
OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input signal is
communicated to the IPDM E/R across the CAN communication lines. The CPU located in the IPDM E/R con-
trols the tail lamp relay coil, which when energized, directs power.
through IPDM E/R terminal 22
to front side marker lamp LH terminal 1
to clearance lamp LH terminal 2
to license plate lamp LH terminal 1
to rear combination lamp LH terminal 1
to rear combination lamp control unit terminal 2
to front side marker lamp RH terminal 1
to clearance lamp RH terminal 2
to license plate lamp RH terminal 1, and
to rear combination lamp RH terminal 1.
PARKING, LICENSE PLATE AND TAIL LAMPS LT-139
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How to Proceed With Trouble DiagnosisAKS007E0
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 2 9 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 1 3 9 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do parking, license plate, side marker and tail lamps operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckAKS007E1
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 1 3 3 , "
Wiring Diagram — TAIL/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "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.
BCM Battery
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 71
Rear combination lamp control unit Battery 20
Terminals Ignition switch position
(+) (-) OFF ACC ON
Connector Terminal
(Wire color)
M3 11 (LG/R)
Ground Approx. 0V
Battery
voltage Battery
voltage
38 (W/L) Approx. 0V Approx. 0V Battery
voltage
M4 42 (L/R)
Battery
voltage Battery
voltage Battery
voltage
55 (G) Battery
voltage Battery
voltage Battery
voltage
PKIB5197E
LT-160
INTERIOR ROOM LAMP
Revision: 2005 July 2005 FX
When the room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room
lamp and personal lamp turns OFF, there is a gradual dimming over 1 second.
The room lamp and personal lamp timer is controlled by the BCM (body control module).
Room lamp and personal lamp timer control settings can be changed with CONSULT-II.
Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob
from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).
Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF
when the driver, passenger doors are closed (all door switches OFF).
POWER SUPPLY AND GROUND
Power is supplied at all times (without Intelligent Key system)
through 15A fuse [No. 22, located in fuse block (J/B)]
to key switch terminal 2, and
to BCM terminal 42,
through 50A fusible link (letter M, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8.
Power is supplied at all times (with Intelligent Key system)
through 10A fuse (No.38, located in fuse, fusible link and relay box)
to key switch and ignition knob switch terminal 1,
through 15A fuse [No.22, located in fuse block (J/B)]
to BCM terminal 42,
to key switch and ignition knob switch terminal 3,
through 50A fusible link (letter M, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 10A fuse [No. 19, located in fuse block (J/B)]
to combination meter terminal 8.
When key plate inserted to key switch, power is supplied (without Intelligent Key system)
through key switch terminal 1
to BCM terminal 37.
When inserted key plate to key switch, power is supplied (with Intelligent Key system)
through key switch and ignition knob switch terminal 4
to BCM terminal 37.
When moved ignition knob switch, power is supplied (with Intelligent Key system)
through ignition knob switch terminal 2
to intelligent key unit terminal 27.
With ignition switch in the ON or START position, power is supplied
through 15A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38.
Ground is supplied
to BCM terminals 49 and 52
through grounds terminals M35, M45 and M85.
When driver side door is opened, ground is supplied
through case ground of front door switch (driver side)
through front door switch (driver side) terminal 1
to BCM terminal 62.
When passenger side door is opened, ground is supplied
through case ground of front door switch (passenger side)
through front door switch (passenger side) terminal 1
to BCM terminal 12.
LT-162
INTERIOR ROOM LAMP
Revision: 2005 July 2005 FX
through grounds M35, M45 and M85
to map lamp terminal 1.
And power is supplied
from BCM terminal 41
to map lamp terminal 3.
When interior room lamp switch is ON, ground supplied (without DVD player)
through grouunds M35, M45 and M85
to interior room lamp terminal 3.
And power is supplied (without DVD player)
from BCM terminal 41
to interior room lamp terminal 2.
When personal lamp LH or RH switch is ON, ground supplied
through grounds M35, M45 and M85
to personal lamp LH or RH terminal 3.
And power is supplied
from BCM terminal 41
to personal lamp LH or RH terminal 2.
When vanity mirror lamp (driver side or passenger side) is ON, ground is supplied
through grounds M35, M45 and M85
to vanity mirror lamp (driver side or passenger side) terminal 2.
And power is supplied
from BCM terminal 41
to vanity mirror lamp (driver side or passenger side) terminal 1.
When luggage room lamp (back door side) is ON, ground is supplied
through grounds B15 and B45
to luggage room lamp (back door side) terminal 3.
And power is supplied
from BCM terminal 41
to luggage room lamp (back door side) terminals 2.
ROOM LAMP TIMER OPERATION
Without Intelligent Key System
When the interior room lamp and map lamp switch is in DOOR position, and when all conditions below are
met, BCM performs timer control (maximum 30 seconds) for interior room lamp and map lamp ON/OFF.
In addition, when spot turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied
to 15A fuse [No. 22, located infuse block (J/B)]
through key switch terminal 2.
Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.
Ground is supplied
from BCM terminal 22
to power window main switch (door lock and unlock switch) terminal 14.
At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior
room lamp and map lamp timer operation conditions are met, and turns interior room lamp and map lamp ON
for 30 seconds.
Key is in ignition key cylinder (key switch ON),
Power is supplied
through key switch terminal 1
to BCM terminal 37.
INTERIOR ROOM LAMP LT-163
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When the key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated.
BCM detects that key has been removed, determines that interior room lamp and map lamp timer conditions
are met, and turns interior room lamp and map lamp ON for 30 seconds.
When driver door opens → closes, and key is not inserted in key switch (key switch OFF), BCM terminal 62
changes between 0V (door open) → 12V (door closed). BCM determines that conditions for interior room lamp
and map lamp operation are met and turns interior room lamp ON for 30 seconds.
Timer control is canceled under the following conditions.
Driver door is locked [when locked keyfob or power window main switch (door lock and unlock switch),
door key cylinder switch].
Driver door is opened (driver door switch turns ON).
Ignition switch ON.
With Intelligent Key System
When the interior room lamp and map lamp switch is in DOOR position, and when all conditions below are
met, BCM performs timer control (maximum 30 second) for interior room lamp and map lamp ON/OFF.
In addition, when spot turns ON or OFF there is gradual brightening or dimming over 1 second.
Power is supplied
to 15A fuse [No. 22, located in fuse and fuse block (J/B)]
through key switch and ignition knob switch terminal 3.
Key is removed from ignition key cylinder (key switch OFF), power will not be supplied to BCM terminal 37.
And not turned ignition knob switch, power will not be supplied to Intelligent Key unit.
Ground is supplied
from BCM terminal 22
to power window main switch (door lock and unlock switch) terminal 14.
At the time that driver door are opened, BCM detects that driver door is unlocked. It determines that interior
room lamp and map lamp timer operation conditions are met, and turns interior room lamp and map lamp ON
for 30 seconds.
Key is in ignition key cylinder (key switch ON), or turned ignition knob switch,
Power is supplied
through key switch and ignition knob switch terminal 4
to BCM terminal 37,
through key switch and ignition knob switch terminal 2
to intelligent key unit terminal 27.
When the key is removed from key switch (key switch OFF), power supply to BCM terminal 37 is terminated.
And turned ignition knob switch, power supply to Intelligent Key unit is terminated. BCM detects that key has
been removed, determines that interior room lamp and map lamp timer conditions are met, and turns interior
room lamp and map lamp ON for 30 seconds.
When driver door opens → closes, and key is not inserted in key switch (or not turned ignition knob switch),
BCM terminal 62 changes between 0V (door open) → 12V (door closed). BCM determines that conditions for
interior room lamp and map lamp operation are met and turns interior room lamp ON for 30 seconds.
Timer control is canceled under the following conditions.
Driver door is locked [when locked keyfob, power window main switch (door lock and unlock switch) or
door key cylinder switch].
Driver door is opened (driver door switch terns ON).
Ignition switch ON.
INTERIOR LAMP BATTERY SAVER CONTROL
If interior lamp is left “ON”, it will not be turned out even when door is closed.
BCM turns off interior lamp automatically to save battery 30 minutes after ignition switch is turned off.
BCM controls interior lamps listed below:
Luggage room lamp
Vanity mirror lamp
Map lamp
Interior room lamp
Personal lamp
After lamps turn OFF by battery saver system, lamps illuminate again when