Page 3073 of 5883
EXL-72
< ECU DIAGNOSIS >
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
DescriptionINFOID:0000000001523286
REFERENCE VALUES FOR IPDM E/R
For IPDM E/R reference values, refer to XX-XX, "*****".
TERMINAL LAYOUT FOR IPDM E/R
For the terminal layout for the IPDM E/R, refer to XX-XX, "*****".
PHYSICAL VALUES FOR IPDM E/R
For physical values for the IPDM E/R, refer to XX-XX, "*****".
WIRING DIAGRAM - IPDM E/R
For the IPDM E/R wiring diagram, refer to XX-XX, "*****".
FAIL SAFE - IPDM E/R
For IPDM E/R fail safe information, refer to XX-XX, "*****".
DTC INSPECTION PRIORITY CHART - IPDM E/R
For the IPDM E/R DTC inspection priority chart, refer to
DTC INDEX - IPDM E/R
For the IPDM E/R DTC index, refer to XX-XX, "*****".
Page 3074 of 5883

EXTERIOR LIGHTING SYSTEM SYMPTOMS
EXL-73
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom TableINFOID:0000000001523287
CAUTION:
Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.
Symptom Possible cause Inspection item
Headlamp does not
switch to the high beam.One sideFuse
Harness between IPDM E/R
and the front combination lamp
Front combination lamp
(High beam relay)
IPDM E/RHeadlamp (HI) circuit
Refer to EXL-33
.
Both sidesSymptom diagnosis
"BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM"
Refer to EXL-76
.
High beam indicator lamp is not turned ON.
(Headlamp switches to the high beam.) Combination meter
BCM Combination meter.
Data monitor "HI-BEAM IND"
BCM (HEAD LAMP)
Active test "HEADLAMP"
Headlamp does not
switch to the low beam.One sideFront combination lamp (Low
beam relay)—
Both sides Combination switch
Harness between the combina-
tion switch and BCM
BCMCombination switch
Refer to XX-XX, "*****"
.
High beam request signal
BCM
IPDM E/RIPDM E/R
Data monitor "HL HI REQ"
IPDM E/R —
Headlamp does not turn
ON.One sideFuse
Bulb
Harness between IPDM E/R
and the front combination lamp
Front combination lamp
IPDM E/RHeadlamp (LO) circuit
Refer to EXL-37
.
Both sidesSymptom diagnosis
"BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON"
Refer to EXL-77, "
Description".
Headlamp does not turn
OFF.When the ignition
switch is turned ONBCM
Combination switchCombination switch
Refer to XX-XX, "*****"
.
The ignition switch is
turned OFF (After acti-
vating the battery sav-
er).IPDM E/R —
Headlamp is not turned ON/OFF with the lighting
switch AUTO. Combination switch
Harness between the combina-
tion switch and BCM
BCMCombination switch
Refer to XX-XX, "*****"
.
Light & rain sensor
Harness between the light &
rain sensor and BCM
BCMlight & rain sensor
Refer to EXL-55
.
Page 3075 of 5883

EXL-74
< SYMPTOM DIAGNOSIS >
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Daytime light system does not activate. Either high beam bulb
Parking brake switch
Combination switch
BCM
IPDM E/R
Daytime light relay
Harness between IPDM E/R
and daytime light relay.Daytime light system description.
Refer to XX-XX, "*****"
.
Front fog lamp is not
turned ON.One side Front fog lamp bulb
Harness between IPDM E/R
and the front combination lamp
Front combination lamp
IPDM E/RFront fog lamp circuit
Refer to EXL-41
.
Both sideSymptom diagnosis
"BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON"
Refer to EXL-79
.
Parking lamp is not turned
ON.One sideFuse
Parking lamp bulb
Harness between IPDM E/R
and the front/rear combination
lamp
Front/rear combination lamp
IPDM E/RParking lamp circuit
Refer to EXL-46
.
Both sidesSymptom diagnosis
"PARKING, LICENSE PLATE AND TAIL LAMPS ARE NOT TURNED
ON"
Refer to EXL-78
.
Turn signal lamp does not
blink.Indicator lamp is nor-
mal.
(The applicable side
performs the high flash-
er activation). Harness between BCM and
each turn signal lamp
Turn signal lamp bulb
Door mirror (if equipped with
turn signals in the door mirrors)Turn signal lamp circuit
Refer to EXL-52
.
Turn signal indicator lamp
does not blink.One side Combination meter —
Both sides
(Always) Turn signal indicator lamp sig-
nal
Combination meter
BCM Combination meter.
Data monitor "TURN IND"
BCM (FLASHER)
Active test "FLASHER"
Both sides
(Does blink when acti-
vating the hazard warn-
ing lamp with the
ignition switch OFF) The combination meter power
supply and the ground circuit
Combination meterCombination meter
Power supply and the ground circuit
Refer to XX-XX, "*****"
. Symptom Possible cause Inspection item
Page 3076 of 5883
NORMAL OPERATING CONDITION
EXL-75
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NORMAL OPERATING CONDITION
DescriptionINFOID:0000000001523288
AUTO LIGHT SYSTEM
The auto light system may not turn the headlamp ON/OFF immediately after passing a dark area or a bright
area (short tunnel, sky bridge, shadowed area etc.). This is normal.
Page 3077 of 5883

EXL-76
< SYMPTOM DIAGNOSIS >
BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
BOTH SIDE HEADLAMPS DO NOT SWITCH TO HIGH BEAM
DescriptionINFOID:0000000001523289
The headlamps (both sides) do not switch to high beam when the lighting switch is in the HI or PASS setting.
Diagnosis ProcedureINFOID:0000000001523290
1.COMBINATION SWITCH INSPECTION
Check the combination switch. Refer to XX-XX, "*****"
.
Is the combination switch normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning part.
2.CHECK HEADLAMP (HI) REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select "HL HI REQ" of IPDM E/R DATA MONITOR item.
2. With operating the lighting switch, check the monitor status.
Is the item status normal?
YES >> GO TO 3
NO >> Replace BCM. Refer to XX-XX, "*****"
.
3.HEADLAMP (HI) CIRCUIT INSPECTION
Check the headlamp (HI) circuit. Refer to EXL-33, "
HEADLAMP (HALOGEN) : Description".
Is the headlamp (HI) circuit normal?
YES >> Replace IPDM E/R. Refer to XX-XX, "*****" .
NO >> Repair or replace the malfunctioning part.
Monitor item Condition Monitor status
HL HI REQLighting switch
(2ND)HI or PASS ON
Except for HI or
PASSOFF
Page 3078 of 5883

BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON
EXL-77
< SYMPTOM DIAGNOSIS >
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BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON
DescriptionINFOID:0000000001523291
The headlamps (both sides) do not turn ON in any lighting switch setting.
Diagnosis ProcedureINFOID:0000000001523292
1.CHECK COMBINATION SWITCH
Check the combination switch. Refer to XX-XX, "*****"
.
Is the combination switch normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning part.
2.CHECK HEADLAMP (LO) REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select "HL LO REQ" of IPDM E/R DATA MONITOR item.
2. With operating the lighting switch, check the monitor status.
Is the item status normal?
YES >> GO TO 3
NO >> Replace BCM. Refer to XX-XX, "*****"
.
3.HEADLAMP (LO) CIRCUIT INSPECTION
Check the headlamp (LO) circuit. Refer to EXL-37, "
HEADLAMP (HALOGEN) : Description".
Is the headlamp (LO) circuit normal?
YES >> Replace IPDM E/R. Refer to XX-XX, "*****" .
NO >> Repair or replace the malfunctioning part.
Monitor item Condition Monitor status
HL LO REQ Lighting switch2ND ON
OFF OFF
Page 3079 of 5883

EXL-78
< SYMPTOM DIAGNOSIS >
PARKING, LICENSE PLATE AND TAIL LAMPS ARE NOT TURNED ON
PARKING, LICENSE PLATE AND TAIL LAMPS ARE NOT TURNED ON
DescriptionINFOID:0000000001523293
The parking, license plate and tail lamps do not turn ON in with any lighting switch setting.
Diagnosis ProcedureINFOID:0000000001523294
1.COMBINATION SWITCH INSPECTION
Check the combination switch. Refer to XX-XX, "*****"
.
Is the combination switch normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning part.
2.CHECK TAIL LAMP RELAY REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select "TAIL & CLR REQ" of IPDM E/R DATA MONITOR item.
2. With operating the lighting switch, check the monitor status.
Is the item status normal?
YES >> GO TO 3
NO >> Replace BCM. Refer to XX-XX, "*****"
.
3.PARK LAMP CIRCUIT INSPECTION
Check the parking lamp circuit. Refer to EXL-46, "
WITH DAYTIME LIGHT SYSTEM : Description".
Is the tail lamp circuit normal?
YES >> Replace IPDM E/R. Refer to XX-XX, "*****".
NO >> Repair or replace the malfunctioning part.
Monitor item Condition Monitor status
TAIL & CLR
REQLighting switch1ST ON
OFF OFF
Page 3080 of 5883

BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON
EXL-79
< SYMPTOM DIAGNOSIS >
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BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON
DescriptionINFOID:0000000001523295
The front fog lamps do not turn ON in any setting.
Diagnosis ProcedureINFOID:0000000001523296
1.COMBINATION SWITCH INSPECTION
Check the combination switch. Refer to XX-XX, "*****"
.
Is the combination switch normal?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning part.
2.CHECK FRONT FOG LAMP REQUEST SIGNAL INPUT
CONSULT-III DATA MONITOR
1. Select "FR FOG REQ" of IPDM E/R DATA MONITOR item.
2. With operating the front fog lamp switch, check the monitor status.
Is the item status normal?
YES >> GO TO 3
NO >> Replace BCM. Refer to XX-XX, "*****"
.
3.FRONT FOG LAMP CIRCUIT INSPECTION
Check the front fog lamp circuit. Refer to EXL-41, "
Description".
Is the front fog lamp circuit normal?
YES >> Replace IPDM E/R. Refer to XX-XX, "*****".
NO >> Repair or replace the malfunctioning part.
Monitor item Condition Monitor status
FR FOG REQFront fog lamp switch
(Lighting switch 2ND)ON ON
OFF OFF