LT-20
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
3. Check continuity between IPDM E/R harness connector (A) and
headlamp harness connector (B).
OK or NG
OK >> Replace IPDM E/R. Refer to PG-25, "IPDM E/R Power/
Ground Circuit Inspection" .
NG >> Repair harness or connector.
Headlamps Do Not Turn OFFINFOID:0000000001704376
1.CHECK HEADLAMPS TURN OFF
Make sure that lighting switch is OFF. Make sure headlamp turns OFF when ignition switch is turned OFF.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.CHECK COMBINATION SWITCH INPUT SIGNAL
1. Select “BCM” on CONSULT-III. Select “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen. Make sure that “HEAD LAMP SW 1” and
“HEAD LAMP SW 2” turns ON-OFF linked with operation of lighting switch.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R" .
NG >> Check combination switch (lighting switch). Refer to LT-63, "
Combination Switch Inspection" .
3.CHECKING CAN COMMUNICATIONS BETWEEN BCM AND IPDM E/R
Select “BCM” on CONSULT-III, and perform self-diagnosis for “BCM”.
Display of self
-diagnosis results
NO DTC>> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R".
CAN COMM CIRCUIT>> Refer to LAN-6, "
System Description".
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH
E4754 E26
3Yes
LH 52 E25
WKIA5471E
When lighting switch is OFF
position: HEAD LAMP SW 1 OFF
: HEAD LAMP SW 2 OFF
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
LT-25
< SERVICE INFORMATION >
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HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Component Parts and Harness Connector LocationINFOID:0000000001704381
System DescriptionINFOID:0000000001704382
Headlamp operation is controlled by the BCM (body control module) based on inputs from the combination
switch (lighting switch). When the lighting switch is placed in the 2ND position, the BCM receives an input sig-
nal requesting the headlamps (and tail lamps) illuminate. The request is then communicated to the IPDM E/R
(intelligent power distribution module engine room) via the CAN communication lines. The CPU (central pro-
cessing unit) located in the IPDM E/R controls ground for the headlamp high and headlamp low relay coils.
These relays direct power to the respective headlamps, which then illuminate. When the headlamp switch is
OFF or in the 1ST position (parking lamps ON), the parking brake is released and the engine is running, the
IPDM E/R de-energizes the headlamp relays and supplies ground to the daytime light relay 1 to actuate the
daytime light function.
OUTLINE
Power is supplied at all times
• to headlamp high relay RH and LH (located in IPDM E/R)
• to headlamp low relay (located in IPDM E/R) and
• to ignition relay (located in IPDM E/R)
• through 15A fuse (No. 52, located in IPDM E/R) and
• through 20A fuse (No. 53, located in IPDM E/R)
• to CPU located in IPDM E/R,
• through 40A fusible link (letter g , located in fuse and fusible link box)
• to BCM terminal 70,
• through 10A fuse [No. 8, located in fuse block (J/B)]
• to BCM terminal 57,
• through 10A fuse [No. 13, located in fuse block (J/B)]
• to combination meter terminal 27,
• through 10A fuse (No. 26, located in fuse and fusible link box)
• to the daytime light relay 1.
With the ignition switch in the ON or START position, power is supplied
• to the ignition relay (located in IPDM E/R),
• through 10A fuse [No. 6, located in fuse block (J/B)]
• to BCM terminal 38,
1. IPDM E/R E43, E46, E47 and E48 2. BCM M18 and M20 (view with glove
box removed)3. Combination switch (lighting switch)
M28
4. Combination meter M24 5. Daytime light relay 1 E37 and day-
time light relay 2 E386. Parking brake switch M17
WKIA5555E
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
LT-33
< SERVICE INFORMATION >
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How to Perform Trouble DiagnosisINFOID:0000000001704388
1. Confirm the symptom or customer complaint.
2. Understand operation, description and function description. Refer to LT-25, "
System Description" .
3. Perform the Preliminary Check. Refer to LT-33, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of the malfunction.
5. Does the daytime light system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001704389
CHECK BCM CONFIGURATION
1.CHECK BCM CONFIGURATION
Confirm BCM configuration for "DTRL" is set to "WITH". Refer to BCS-17, "
Configuration" .
OK or NG
OK >> Continue preliminary check. Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspec-
tion" .
NG >> Change BCM configuration for "DTRL" to "WITH". Refer to BCS-17, "
Configuration" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to PG-25, "IPDM E/R Power/Ground Circuit Inspection" .
CONSULT-III Function (BCM)INFOID:0000000001704390
Refer to LT- 11 , "CONSULT-III Function (BCM)" .
CONSULT-III Function (IPDM E/R)INFOID:0000000001704391
Refer to LT-12, "CONSULT-III Function (IPDM E/R)" .
Daytime Light Control Does Not Operate Properly (High Beam Headlamps Operate
Properly)
INFOID:0000000001704392
1.CHECK DAYTIME LIGHT RELAY 1 FUSE
Inspect daytime light relay fuse 10A fuse (No. 26, located in the fuse and fusible link box).
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2.CHECK DAYTIME LIGHT RELAY 1 POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove daytime light relay 1.
3. Check voltage between daytime light relay 1 harness connector
E37 terminals 2, 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK DAYTIME LIGHT RELAY 1
1. Apply battery voltage to daytime light relay 1 terminal 2 and supply ground to terminal 1.2, 5 - Ground : Battery voltage should exist.
WKIA3305E
LT-34
< SERVICE INFORMATION >
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
2. Check continuity between terminals 3 and 5.
OK or NG
OK >> GO TO 4.
NG >> Replace daytime light relay 1.
4.CHECK INPUT SIGNAL
1. Connect daytime light relay 1.
2. Apply parking brake and start engine. Headlamp switch OFF.
3. Select "IPDM E/R" on CONSULT-III. With DATA MONITOR, make sure "DTRL REQ" turns OFF-ON linked
with operation of parking brake switch.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.CHECKING CAN COMMUNICATIONS
Select "BCM" on CONSULT-III and perform self-diagnosis for BCM.
Displayed self-diagnosis results
NO DTC>>Replace BCM. Refer to BCS-18, "Removal and Installation of BCM" .
CAN COMM CIRCUIT>> Check BCM CAN communication system. Refer to LAN-15, "
Trouble Diagnosis
Flow Chart" .
6.CHECK DAYTIME LIGHT RELAY 1 CONTROL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect daytime light relay 1 connector E37.
3. Disconnect IPDM E/R connector E43.
4. Check continuity between IPDM E/R connector E43 (A) terminal
6 and daytime light relay 1 connector E37 (B) terminal 1.
OK or NG
OK >> Replace the IPDM E/R. Refer to PG-26, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector. 3 - 5 : Continuity should exist.
WIIA0291E
Parking brake ON : DTRL REQ OFF
Parking brake OFF : DTRL REQ ON
ABContinuity
Connector Terminal Connector Terminal
Ye s
E43 6 E37 1
WKIA5553E
FRONT FOG LAMP
LT-39
< SERVICE INFORMATION >
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FRONT FOG LAMP
Component Parts and Harness Connector LocationINFOID:0000000001704397
System DescriptionINFOID:0000000001704398
The front fog lamps are controlled by lighting switch inputs to the BCM (body control module). The lighting
switch must be in the 1ST or 2ND position with the high beams OFF before the BCM will request the IPDM E/
R (intelligent power distribution module engine room) to turn the front fog lamps on. The BCM requests the
front fog lamps over the CAN communication lines to the IPDM E/R. The CPU (central processing unit) of the
IPDM E/R controls the front fog lamp relay coil ground. When energized, the relay directs power to the front
fog lamps.
OUTLINE
Power is supplied at all times:
• to front fog lamp relay (located in IPDM E/R),
• to ignition relay (located in IPDM E/R),
• through 15A fuse (No. 52, located in IPDM E/R) and
• through 20A fuse (No. 53, located in IPDM E/R)
• to CPU located in IPDM E/R,
• through 40A fusible link (letter g , located in the fuse and fusible link box)
• to BCM terminal 70,
• through 10A fuse [No. 8, located in fuse block (J/B)]
• to BCM terminal 57,
• through 10A fuse [No. 13, located in fuse block (J/B)]
• to combination meter terminal 27.
With the ignition switch in the ON or START position, power is supplied:
• to ignition relay (located in IPDM E/R),
• through 10A fuse [No. 6, located in fuse block (J/B)]
• to BCM terminal 38.
With the ignition switch in the ACC or ON position, power is supplied
• through 10A fuse [No. 20, located in fuse block (J/B)]
• to BCM terminal 11.
Ground is supplied
• to BCM terminal 67
• through grounds M57 and M61,
• to IPDM E/R terminals 39 and 59
• through grounds E15 and E24.
FOG LAMP OPERATION
The front fog lamp switch is built into the lighting switch. The lighting switch must be in 1ST position or 2ND
position and front fog lamp switch must be ON position for front fog lamp operation. The fog lamp will not oper-
ate with the high beam headlamps ON.
When the front fog lamp switch is in the ON position, the BCM sends a request, via the CAN communication
lines, to the CPU of the IPDM E/R to ground the coil side of the front fog lamp relay. The front fog lamp relay
then directs power
• through 15A fuse (No. 56, located in IPDM E/R)
1. IPDM E/R E46, E47 and E48 2. BCM M18 and M20 (viewed with
glove box removed)3. Combination switch (lighting switch)
M28
WKIA5554E
LT-44
< SERVICE INFORMATION >
FRONT FOG LAMP
1. Start auto active test. Refer to PG-19, "Auto Active Test" .
2. Make sure front fog lamp operates.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4.CHECK IPDM E/R
1. Select “IPDM E/R” on CONSULT-III. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Make sure “FR FOG REQ” turns ON when front fog lamp switch is in ON position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and Installation of IPDM E/R" .
NG >> Replace BCM. Refer toBCS-18, "
Removal and Installation of BCM" .
5.CHECK FOG LAMP INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect front fog lamp connector.
3. Select “IPDM E/R” on CONSULT-III, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “EXTERNAL LAMPS” on “SELECT TEST ITEM” screen.
5. Touch “FOG” screen.
6. When front fog lamp relay is operating, check voltage between
front fog lamp harness connector and ground.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect front fog lamp connector.
3. Start auto active test. Refer to PG-19, "
Auto Active Test" .
4. When front fog lamp relay is operating, check voltage between front fog lamp harness connector and
ground.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.CHECK FOG LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.Front fog lamp should operate.
When front fog lamp switch
is ON position: FR FOG REQ ON
(+)
(−) Voltage
Front fog lamp connector Terminal
RH E28
1 Ground Battery voltage
LH E27
(+)
(−) Voltage
Front fog lamp connector Terminal
RH E28
1 Ground Battery voltage
LH E27
PKIA6276E
FRONT FOG LAMP
LT-45
< SERVICE INFORMATION >
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3. Check continuity between IPDM E/R harness connector (A) and
front fog lamp harness connector (B).
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
7.CHECK FOG LAMP GROUND
1. Check continuity between front fog lamp harness connector and
ground.
OK or NG
OK >> Check front fog lamp bulbs.
NG >> Repair harness or connector.
Front Fog Lamp Does Not Illuminate (One Side)INFOID:0000000001704408
1. CHECK BULB
Check bulb of lamp which does not illuminate.
OK or NG
OK >> GO TO 2.
NG >> Replace front fog lamp bulb.
2.CHECK FOG LAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front fog lamp connector.
3. Check continuity between IPDM E/R harness connector (A) and
front fog lamp harness connector (B).
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK FOG LAMP GROUND
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH
E4751 E28
1Yes
LH 50 E27
WKIA4408E
Front fog lamp connector Terminal
Ground Continuity
RH E28
2Yes
LH E27
PKIA6277E
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH
E4751 E28
1Yes
LH 50 E27
WKIA4408E
LT-46
< SERVICE INFORMATION >
FRONT FOG LAMP
1. Check continuity between front fog lamp harness connector and
ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
Aiming AdjustmentINFOID:0000000001704409
The front fog lamp is a semi-sealed beam type which uses a replaceable halogen bulb. Before performing
aiming adjustment, make sure of the following.
• Keep all tires inflated to correct pressure.
• Place vehicle on level surface.
• Set that there is no-load in vehicle other than the driver (or equivalent weight placed in driver’s position).
Coolant, engine oil filled up to correct level and full fuel tank, spare tire, jack and tools are properly stowed.
Adjust aiming in the vertical direction by turning the adjusting screw (A).
1. Set the distance (C) between the screen and the center of front
fog lamp lens (E) as shown.
2. Turn front fog lamps (1) to ON.
3. Adjust front fog lamps using adjusting screw so that the top edge
of the high intensity zone (A) is as shown.
NOTE:
When performing adjustment, if necessary, cover the headlamps
and opposite front fog lamp.
Front fog lamp connector Terminal
Ground Continuity
RH E28
2Yes
LH E27
PKIA6277E
PKIC1070E
Aiming distance from center of fog lamp to screen (C) 25,000 mm (984.3 in)
Foglamp beam width (D) 870 mm (34.3 in)
Horizontal distance from ground to bottom edge of high
intensity zone (B)220 mm (8.7 in)
Horizontal distance from bottom edge to top edge of
high intensity zone (A)21.75 mm (0.9 in)
LKIA0931E