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EXL

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DRIVER CONTROLS

SECTION
EXTERIOR LIGHTING SYSTEM
EXL B

E
CONTENTS
BASIC INSPECTION ................................... 4
. Component Parts Location .....................................17
. F
Component Description ..........................................18
.
DIAGNOSIS AND REPAIR WORKFLOW ......... 4
.
Work Flow ................................................................ 4
. COMBINATION SWITCH .................................. 19
G
System Description .................................................19
.
FUNCTION DIAGNOSIS .............................. 7
.
DIAGNOSIS SYSTEM (BCM) ........................... 20
HEADLAMP (HALOGEN TYPE) ........................ 7
. H
System Diagram ....................................................... 7
. COMMON ITEM ........................................................20
.
System Description .................................................. 7
. COMMON ITEM : Diagnosis Description ...............20 .
Component Parts Location ....................................... 7
. COMMON ITEM : CONSULT-III Function ..............20 .
I
Component Description ............................................ 7
. EXTERNAL LAMP ....................................................20
.
DAYTIME RUNNING LIGHT SYSTEM .............. 9
. EXTERNAL LAMP : CONSULT-III Function ...........21 .
System Diagram ....................................................... 9
. FLASHER ..................................................................22
. J
System Description .................................................. 9
. FLASHER : CONSULT-III Function (BCM -
Component Parts Location ..................................... 10
. FLASHER) ..............................................................22
.
Component Description .......................................... 10
. K
DIAGNOSIS SYSTEM (IPDM E/R) ................... 24
AUTO LIGHT SYSTEM .....................................11
. CONSULT - III Function (IPDM E/R) ......................24
.
System Diagram ..................................................... 11
.
System Description ................................................ 11
. COMPONENT DIAGNOSIS ........................ 25 EXL
.
Component Parts Location ..................................... 12
.
Component Description .......................................... 12
. POWER SUPPLY AND GROUND CIRCUIT .... 25
M
FRONT FOG LAMP ...........................................14
. BCM (BODY CONTROL MODULE) .........................25 .
System Diagram ..................................................... 14
. BCM (BODY CONTROL MODULE) : Diagnosis
System Description ................................................ 14
. Procedure ...............................................................25
.
Component Parts Location ..................................... 14
. N
IPDM E/R (INTELLIGENT POWER DISTRIBU-
Component Description .......................................... 14
.
TION MODULE ENGINE ROOM) .............................25 .
TURN SIGNAL AND HAZARD WARNING IPDM E/R (INTELLIGENT POWER DISTRIBU-
O
LAMPS ..............................................................15
. TION MODULE ENGINE ROOM) : Diagnosis Pro-
cedure .....................................................................25
.
System Diagram ..................................................... 15
.
System Description ................................................ 15
. HEADLAMP (HI) CIRCUIT ................................ 26 P
Component Parts Location ..................................... 16
. Description ..............................................................26
.
Component Description .......................................... 16
. Component Function Check ...................................26 .
PARKING, LICENSE PLATE AND TAIL Diagnosis Procedure ..............................................26 .
LAMPS ..............................................................17
. HEADLAMP (LO) CIRCUIT .............................. 28
System Diagram ..................................................... 17
. Description ..............................................................28
.
System Description ................................................ 17
. Component Function Check ...................................28 .

EXL-1
Diagnosis Procedure ............................................. 28
. Symptom Table .................................................... 102
.

FRONT FOG LAMP CIRCUIT .......................... 30
. NORMAL OPERATING CONDITION .............. 104
.
Description ............................................................. 30
. Description ........................................................... 104
.
Component Function Check .................................. 30 .
Diagnosis Procedure ............................................. 30 . BOTH SIDE HEADLAMPS DO NOT SWITCH
TO HIGH BEAM ............................................... 105
.
PARKING LAMP CIRCUIT ............................... 32
. Description ........................................................... 105
.
Description ............................................................. 32
. Diagnosis Procedure ............................................ 105 .
Component Function Check .................................. 32 .
Diagnosis Procedure ............................................. 32 . BOTH SIDE HEADLAMPS (LO) ARE NOT
TURNED ON .................................................... 106
.
TURN SIGNAL LAMP CIRCUIT ....................... 37
. Description ........................................................... 106
.
Description ............................................................. 37
. Diagnosis Procedure ............................................ 106 .
Component Function Check .................................. 37 .
Diagnosis Procedure ............................................. 37 . PARKING, LICENSE PLATE AND TAIL
LAMPS ARE NOT TURNED ON ..................... 107
.
OPTICAL SENSOR .......................................... 40
. Description ........................................................... 107
.
Description ............................................................. 40
. Diagnosis Procedure ............................................ 107 .
Component Function Check .................................. 40 .
Diagnosis Procedure ............................................. 40 . BOTH SIDE FRONT FOG LAMPS ARE NOT
TURNED ON .................................................... 108
.
HEADLAMP ...................................................... 42
. Description ........................................................... 108
.
Wiring Diagram ...................................................... 42
. Diagnosis Procedure ............................................ 108 .
DAYTIME LIGHT SYSTEM ............................... 46
. ON-VEHICLE REPAIR .............................. 109
Wiring Diagram ...................................................... 46
.
ADJUSTMENT AND INSPECTION ................. 109
.
AUTO LIGHT SYSTEM ..................................... 55
.
Wiring Diagram ...................................................... 55
. HEADLAMP ............................................................ 109
.
HEADLAMP : Aiming Adjustment ........................ 109 .
FRONT FOG LAMP SYSTEM .......................... 62
.
Wiring Diagram ...................................................... 62
. FRONT FOG LAMP ................................................ 110
.
FRONT FOG LAMP : Aiming Adjustment ............ 110 .
TURN SIGNAL AND HAZARD WARNING
LAMP SYSTEM ................................................ 66
. REMOVAL AND INSTALLATION ............. 112
Wiring Diagram ...................................................... 66
.
HEADLAMP ..................................................... 112
.
PARKING, LICENSE PLATE AND TAIL Bulb Replacement ................................................ 112
.
LAMPS SYSTEM .............................................. 73
. Removal and Installation ...................................... 112
.
Wiring Diagram ...................................................... 73
. Disassembly and Assembly ................................. 113 .

STOP LAMP ..................................................... 81
. OPTICAL SENSOR ......................................... 114
.
Wiring Diagram ...................................................... 81
. Removal and Installation ...................................... 114
.

BACK-UP LAMP ............................................... 87
. FRONT FOG LAMP ......................................... 115
.
Wiring Diagram ...................................................... 87
. Bulb Replacement ................................................ 115
.
Removal and Installation ...................................... 115
.
TRAILER TOW ................................................. 92
.
Wiring Diagram ...................................................... 92
. LIGHTING & TURN SIGNAL SWITCH ............ 116
.
Removal and Installation ...................................... 116
.
ECU DIAGNOSIS ...................................... 100
.
HAZARD SWITCH ........................................... 117
.
BCM (BODY CONTROL MODULE) ............... 100
. Removal and Installation ...................................... 117
.
Description ............................................................100
.
HIGH-MOUNTED STOP LAMP ....................... 118
.
IPDM E/R (INTELLIGENT POWER DISTRI- High-Mounted Stop Lamp .................................... 118
.
BUTION MODULE ENGINE ROOM) .............. 101
.
Description ............................................................101
. LICENSE PLATE LAMP .................................. 119
.
Bulb Replacement ................................................ 119
.
SYMPTOM DIAGNOSIS ........................... 102
. Removal and Installation ...................................... 119
.

EXTERIOR LIGHTING SYSTEM SYMPTOMS. 102 REAR COMBINATION LAMP ......................... 120
.

EXL-2
Bulb Replacement ................................................ 120
. BULB SPECIFICATIONS ................................ 121
Removal and Installation ...................................... 120
. Headlamp ............................................................. 121
. A
Exterior Lamp ....................................................... 121
.
SERVICE DATA AND SPECIFICATIONS
(SDS) ......................................................... 121
. B

EXL

EXL-3
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000001712344

OVERALL SEQUENCE

JPLIA0089GB

EXL-4
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >

DETAILED FLOW A
1.INTERVIEW FOR MALFUNCTION
Find out what the customer's concerns are.
B

>> GO TO 2
2.SYMPTOM CHECK C
Verify the symptom from the customer's information.

D
>> GO TO 3
3.BASIC INSPECTION
Check the operation of each part. Check that any concerns occur other than those mentioned in the customer E
interview.

>> GO TO 4 F
4.SELF-DIAGNOSIS WITH CONSULT-III
Perform the self diagnosis with CONSULT-III. Check that any DTC is detected.
G
Is any DTC detected?
YES >> GO TO 5
NO >> GO TO 6 H
5.TROUBLE DIAGNOSIS BY DTC
Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.
I
>> GO TO 9
6.FAIL-SAFE ACTIVATION CHECK J
Determine if the customer's concern is related to fail-safe activation.
Does the fail-safe activate?
YES >> GO TO 7 K
NO >> GO TO 8
7.SYSTEM DIAGNOSIS EXL
Perform the system diagnosis for the system in which the fail-safe activates. Specify the malfunctioning part.

M
>> GO TO 9
8.SYMPTOM DIAGNOSIS
N
Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 9 O
9.MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
P
>> GO TO 11
10.REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)
Perform the self diagnosis with CONSULT-III. Verfied that no DTCs are detected. Erase all DTCs detected
prior to the repair. Verify that DTC is not detected again.
Is any DTC detected?

EXL-5
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
YES >> GO TO 5
NO >> GO TO 11
11.REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES >> INSPECTION END
NO >> GO TO 3

EXL-6
HEADLAMP (HALOGEN TYPE)
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS A
HEADLAMP (HALOGEN TYPE)
System Diagram INFOID:0000000001712345
B

AWLIA0002GB

G
System Description INFOID:0000000001712346

Control of the headlamp system operation is dependent upon the position of the lighting switch (combination H
switch). When the lighting switch is placed in the 2nd position, the BCM (body control module) receives input
requesting the headlamps and park lamps to illuminate. This input is communicated to the IPDM E/R (intelli-
gent power distribution module engine room) via the CAN communication lines. The CPU (central processing
unit) of the IPDM E/R controls the headlamp high and headlamp low relay coils. When energized, these relays I
direct power to the respective headlamps, which then illuminate.
Component Parts Location INFOID:0000000001712347
J

EXL

WKIA4957E O

1. IPDM E/R E122, E123, E124 2. BCM M18, M20 (view with instrument 3. Combination switch M28
panel removed)
P
4. Combination meter M23, M24

Component Description INFOID:0000000001712348

LOW BEAM OPERATION

EXL-7
HEADLAMP (HALOGEN TYPE)
< FUNCTION DIAGNOSIS >
When the lighting switch is in 2ND position, the BCM receives input requesting the headlamps to illuminate.
This input is communicated to the IPDM E/R via the CAN communication lines. The CPU of the IPDM E/R
controls the headlamp low relay coil which supplies power to the low beam headlamps.
HIGH BEAM OPERATION/FLASH-TO-PASS OPERATION
With the lighting switch in the 2ND position and placed in HIGH position, the BCM receives input requesting
the headlamp high beams to illuminate. The flash to pass feature can be used any time and also sends a sig-
nal to the BCM. This input is communicated to the IPDM E/R via the CAN communication lines. The CPU of
the combination meter controls the ON/OFF status off the HIGH BEAM indicator. The CPU of the IPDM E/R
controls the headlamp high relay coil which supplies power to the high beam headlamps.
The combination meter receives a high beam request signal (ON) via the CAN communication lines and turns
the high beam indicator lamp ON.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-7, "System Description".
AUTO LIGHT OPERATION
Refer to EXL-11, "System Description".

EXL-8
DAYTIME RUNNING LIGHT SYSTEM
< FUNCTION DIAGNOSIS >
DAYTIME RUNNING LIGHT SYSTEM
A
System Diagram INFOID:0000000001712349

ALLIA0621GB F

System Description INFOID:0000000001712350

G
The headlamp system for Canada vehicles is equipped with a daytime light control unit that activates the high
beam headlamps at approximately half illumination whenever the engine is operating. If the parking brake is
applied before the engine is started the daytime lights will not be illuminated. The daytime lights will illuminate H
once the parking brake is released. Thereafter, the daytime lights will continue to operate when the parking
brake is applied.

EXL

EXL-9
DAYTIME RUNNING LIGHT SYSTEM
< FUNCTION DIAGNOSIS >
Component Parts Location INFOID:0000000001712351

WKIA4958E

1. IPDM E/R E119, E122, E123, E124 2. Parking brake switch E53 3. BCM M18, M20 (view with instrument
panel removed)
4. ECM E16 (view with ECM cover re- 5. Generator E205 6. Daytime light relay 1
moved)
7. Daytime light relay 2 8. Combination switch (lighting switch) 9. Combination meter M24
M28

Component Description INFOID:0000000001712352

After starting the engine with the parking brake released and the lighting switch in the OFF or 1ST position, the
headlamp high beam automatically turns on at a reduced intensity. With the lighting switch in the 2nd position
or with autolamps ON, the headlamps function the same as conventional light systems.
OPERATION
The BCM monitors inputs from the parking brake switch and the combination switch to determine when to acti-
vate the daytime light system. The BCM sends a daytime light request to the IPDM E/R via the CAN commu-
nication lines. The IPDM E/R grounds the daytime light relay which in turn, provides power to the ground side
of the LH high beam lamp. Power flows backward through the LH high beam lamp to the IPDM E/R, through
the high beam fuses, through the RH high beam lamp circuit to the RH high beam lamp and on to ground. The
high beam lamps are wired in series which causes them to illuminate at a reduced intensity.

EXL-10
AUTO LIGHT SYSTEM
< FUNCTION DIAGNOSIS >
AUTO LIGHT SYSTEM
A
System Diagram INFOID:0000000001712353

ALLIA0381ZZ

G
System Description INFOID:0000000001712354

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