Page 3684 of 4449

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-129
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With power and ground supplied, the parking, license plate, side marker and tail lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST (or 2ND) position, and the ignition switch is turned
from ON or ACC to OFF, the battery saver control feature is activated.
Under this condition, the parking, license, side marker and tail lamps remain illuminated for 5 minutes, then the
parking, license plate, side marker and tail lamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionAKS007DU
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080X
Refer to LAN-6, "CAN Communication Unit" .
Page 3692 of 4449

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-137
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Terminals and Reference Values for IPDM E/RAKS007IM
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 7 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 1 3 7 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do the parking, license 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 fuses for blown-out.
35 W/G Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 W/R Combination switch output 1
38 W/L Ignition switch (ON) ON — Battery voltage
39 L CAN− H—— —
40 R CAN− L—— —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0V
52 B Ground ON — Approx. 0V
55 G Battery power supply OFF — Battery voltage Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition switch Operation or condition
SKIA5292E
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
22 RParking, license,
and tail lampONLighting switch
1ST positionOFF Approx. 0V
ON Battery voltage
38 B Ground ON — Approx. 0V
48 L CAN− H—— —
49 R CAN− L—— —
60 B Ground ON — Approx. 0V
Unit Power source Fuse and fusible link No.
BCMBatteryM
22
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
IPDM E/R Battery71
78
Rear combination lamp control unit Battery 20
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LT-138
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2004 November 2004 FX35/FX45
Refer to LT- 1 3 1 , "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 >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
CONSULT-II FunctionsAKS007E2
Refer to LT- 1 8 , "CONSULT-II Functions (BCM)" in HEAD LAMP.
Refer to LT- 2 1 , "
CONSULT-II Functions (IPDM E/R)" in HEAD LAMP.
Terminals Ignition switch position
(+)
(-) OFF ACC ON
ConnectorTerminal
(Wire color)
M311 (LG/R)
Ground0VBattery
voltageBattery
voltage
38 (W/L) 0V 0VBattery
voltage
M442 (L/R)Battery
voltageBattery
voltageBattery
voltage
55 (G)Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
Terminals
Continuity
Connector Terminal (Wire color)
M449 (B)
Ground Yes
52 (B)
PKIA5191E
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LT-140
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2004 November 2004 FX35/FX45
4. CHECK INPUT SIGNAL
With CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front side marker, clearance lamp, license plate lamp and rear combination lamp connectors.
3. Select “IPDM E/R” on CONSULT-II. and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “TAIL LAMP” on “SELECT TEST ITEM” screen.
5. Touch “ON” screen.
6. When tail lamp is operating, check voltage between front side marker lamp, clearance lamp, license plate
lamp, rear combination lamp harness connector and ground.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH and LH connector.
3. Start auto active test. Refer to PG-24, "
Auto Active Test" .
4. When tail lamp is operating, check voltage between front side marker lamp, clearance lamp, license plate
lamp, rear combination lamp harness connector and ground.
Te r m i n a l s
Voltag e Front side marker lamp (+)
(-)
Connector Terminal (Wire color)
RH E22
1 (R) Ground Battery voltage
LH E42
PKIA5236E
Terminals
Voltage Clearance lamp (+)
(-)
Connector Terminal (Wire color)
RH E23
2 (R) Ground Battery voltage
LH E43
PKIA5237E
Terminals
Vo l ta g e License plate lamp (+)
(-)
Connector Terminal (Wire color)
RH D111
1 (R) Ground Battery voltage
LH D110
PKIA5238E
Page 3696 of 4449
PARKING, LICENSE PLATE AND TAIL LAMPS
LT-141
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OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
Terminals
Voltage Rear combination lamp (+)
(Side marker)
(-)
Connector Terminal (Wire color)
RH B219
1 (R) Ground Battery voltage
LH B57
PKIA5239E
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PARKING, LICENSE PLATE AND TAIL LAMPS
LT-143
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6. CHECK GROUND
1. Turn ignition switch OFF.
2. Check continuity between front side maker lamp harness con-
nector and ground.
3. Check continuity between clearance lamp harness connector
and ground.
4. Check continuity between license plate lamp harness connector
and ground.
5. Check continuity between rear combination lamp harness con-
nector and ground.
OK or NG
OK >> Check bulb.
NG >> Repair harness or connector.
Terminals
Continuity Front side marker lamp
Ground Connector Terminal (Wire color)
RH E22
2 (B) Yes
LH E42
PKIA5244E
Te r m i n a l s
Continuity Clearance lamp
Ground Connector Terminal (Wire color)
RH E23
3 (B) Yes
LH E43
SKIA5881E
Terminals
Continuity License plate lamp
Ground Connector Terminal (Wire color)
RH D111
2 (B) Yes
LH D110
PKIA5246E
Te r m i n a l s
Continuity Rear combination lamp (Side marker)
Ground Connector Terminal (Wire color)
RH B219
2 (B) Yes
LH B57
PKIA5247E
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LT-144
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2004 November 2004 FX35/FX45
Tail Lamp Does Not OperateAKS007IN
1. CHECK STOP LAMP AND TURN SIGNAL LAMP
Make sure stop lamps and turn signal lamps are illuminated.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK INPUT SIGNAL
Check voltage between rear combination lamp control unit harness
connector B65 terminal 2 (R) and ground.
OK or NG
OK >> Replace rear combination lamp control unit.
NG >> Repair harness or connector.
3. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear combination lamp control unit connector.
3. Check voltage between rear combination lamp control unit har-
ness connector B65 terminal 1 (GY) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK GROUND CIRCUIT
Check continuity between rear combination lamp control unit har-
ness connector B65 terminal 7 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
Terminal
(-) Condition Voltage (+)
ConnectorTerminal
(Wire color)
B65 2 (R) GroundLighting switch 1ST
position is ON.Battery voltage
Lighting switch 1ST
position is OFF.Approx. 0
PKIA5248E
1 (GY) – Ground : Battery voltage should exist.
SKIA5907E
7 (B) – Ground : Continuity should exist.
SKIA5908E
Page 3712 of 4449

INTERIOR ROOM LAMP
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INTERIOR ROOM LAMPPFP:26410
Component Parts and Harness Connector LocationAKS007O8
System DescriptionAKS007F7
When room lamp and personal lamp switch is in DOOR position, room lamp and personal lamp ON/OFF is
controlled by timer according to signals from switches including key switch, front door switch driver side,
unlock signal from keyfob, door lock and unlock switch, key cylinder lock and unlock switch, ignition switch.
When 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 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 (body control module) terminal 42
through 50A fusible link [letter M, located in fuse and fusible link block]
to BCM (body control module) terminal 55.
Power is supplied at all times (with intelligent key system)
through 10A fuse [No.38, located in fuse and fusible link block]
to key switch and ignition knob switch terminals 1
through 15A fuse [No.22, located in fuse block (J/B)]
to BCM (body control module) terminal 42
to key switch and ignition knob switch terminal 3, and
to key switch terminal 2
through 50A fusible link [letter M, located in fuse and fusible link block]
to BCM (body control module) terminal 55.
When the key plate inserted to key switch, power is supplied (without intelligent key system)
through the key switch terminal 1
to BCM (body control module) terminal 37.
PKIA2923E