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LT-70
AUTO LIGHT SYSTEM
Revision: 2004 November 2004 FX35/FX45
2. CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and optical sensor connector.
3. Check continuity (open circuit) between BCM harness connector
M3 terminal 17 (Y/G) and optical sensor harness connector M37
terminal 1 (Y/G).
4. Check continuity (short circuit) between BCM harness connector
M3 terminal 17 (Y/G) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT
1. Check continuity (open circuit) between BCM harness connector
M3 terminal 14 (P) and optical sensor harness connector M37
terminal 2 (P).
2. Check continuity (short circuit) between BCM harness connector
M36 terminal 14 (P) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT
1. Check continuity (open circuit) between BCM harness connector
M3 terminal 18 (B) and optical sensor harness connector M37
terminal 3 (B).
2. Check continuity (short circuit) between BCM harness connector
M37 terminal 18 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.17 (Y/G) – 1 (Y/G) : Continuity should exist.
17 (Y/G) – Ground : Continuity should not exist.
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14 (P) – 2 (P) : Continuity should exist.
14 (P) – Ground : Continuity should not exist.
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18 (B) – 3 (B) : Continuity should exist.
18 (B) – Ground : Continuity should not exist.
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AUTO LIGHT SYSTEM
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Revision: 2004 November 2004 FX35/FX45
5. CHECK OPTICAL SENSOR VOLTAGE
1. Connect BCM connector.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector M3 terminal 17
(Y/G) and ground.
OK or NG
OK >> Replace the optical sensor.
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" .
Removal and Installation for Optical SensorAKS007F6
REMOVAL
1. Insert a screwdriver or similar tool and remove front defroster
grill (LH). Refer to IP-15, "
(V) Front Defroster Grille (LH/RH)" in
“IP” section.
2. Disconnect optical sensor connector.
3. Remove optical sensor.
INSTALLATION
Install in the reverse order of removal.17 (Y/G) – Ground : Approx. 5V should exist.
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LT-72
HEADLAMP AIMING CONTROL
Revision: 2004 November 2004 FX35/FX45
HEADLAMP AIMING CONTROLPFP:26010
SchematicAKS007I7
TKWH0337E
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HEADLAMP AIMING CONTROL
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Revision: 2004 November 2004 FX35/FX45
Wiring Diagram — H/AIM —AKS007CF
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LT-74
HEADLAMP AIMING CONTROL
Revision: 2004 November 2004 FX35/FX45
TKWM0617E
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HEADLAMP AIMING CONTROL
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Revision: 2004 November 2004 FX35/FX45
TKWM0618E
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LT-76
HEADLAMP AIMING CONTROL
Revision: 2004 November 2004 FX35/FX45
Removal and InstallationAKS007CG
REMOVAL
1. Remove combination meter. Refer to DI-26, "Removal and
Installation" in “DI” section.
2. Remove screws for removing headlamp aiming switch from
meter housing.
3. Remove screws and then remove headlamp aiming switch.
INSTALLATION
Install in the reverse order of removal.
Switch Circuit InspectionAKS007CH
Using a circuit tester, check continuity between the headlamp aiming
switch connector terminals in each operation status of the aiming
switch.
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FRONT FOG LAMP
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Revision: 2004 November 2004 FX35/FX45
FRONT FOG LAMPPFP:26150
Component Parts and Harness Connector LocationAKS007O5
System DescriptionAKS007CI
Control of the fog lamps is dependent upon the position of the combination switch (lighting switch). The light-
ing switch must be in the 2ND position or AUTO position (LOW beam is ON) for front fog lamp operation.
When the lighting switch is placed in the fog lamp position the BCM (body control module) receives input sig-
nal requesting the fog lamps to illuminate. When the headlamps are illuminated, this input signal is communi-
cated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication
lines. The central processing unit of the IPDM E/R controls the front fog lamp relay coil. When activated, this
relay directs power to the front fog lamps.
OUTLINE
Power is supplied at all times
to ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]
through 15A fuse [No. 88, located in IPDM E/R (intelligent power distribution module engine room)]
to front fog lamp relay [located in IPDM E/R (intelligent power distribution module engine room)]
through 15A fuse [No. 78, located in IPDM E/R (intelligent power distribution module engine room)]
to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]
through 10A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)]
to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].
Power is also supplied at all times
through 50A fusible link (letter M, located in the fuse and fusible link block)
to BCM (body control module) terminal 55
through 15A fuse [No. 22, located in fuse block (J/B)]
to BCM (body control module) terminal 42.
When the ignition switch is in ON or START position, power is supplied
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