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TURN SIGNAL LAMP CIRCUITEXL-85
< DTC/CIRCUIT DIAGNOSIS >
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TURN SIGNAL LAMP CIRCUIT
DescriptionINFOID:0000000012432813
The BCM monitors inputs from the combination switch (lighting and turn signal switch) to determine when to
activate the turn signals. The BCM outputs voltage direction to the left and right turn signals during turn signal
operation or both during hazard warning operation. The BCM sends a turn signal indicator request to the com-
bination meter via the CAN communication lines.
The BCM performs the fast flasher operation (fail-safe) if any bulb or harness of the turn signal lamp circuit is
open.
NOTE:
Turn signal lamp blinks at normal speed when using the hazard warning lamp.
Component Function CheckINFOID:0000000012432814
1.CHECK TURN SIGNAL LAMP
CONSULT
1. Select FLASHER of BCM (FLASHER) active test item.
2. While operating the test items, check that the turn signal lamp blinks.
Does the turn signal lamp blink?
YES >> Turn signal lamp circuit is normal.
NO >> Refer to EXL-85, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000012432815
Regarding Wiring Diagram information, refer to EXL-48, "Wiring Diagram".
1.CHECK TURN SIGNAL LAMP BULB
Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?
YES >> GO TO 2.
NO >> Replace the bulb.
2.CHECK TURN SIGNAL LA MP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector, the rear combination lamp connector and door mirror
lamp harness connector.
3. Turn the ignition switch ON.
4. With turn signal switch operating, check the vo ltage between the front combination lamp harness connec-
tor and ground. LH : Turn signal lamp LH blinking
RH : Turn signal lamp RH blinking
OFF : The turn signal lamp OFF
(+)
(−) Voltage
Connector Terminal
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EXL-86
< DTC/CIRCUIT DIAGNOSIS >
TURN SIGNAL LAMP CIRCUIT
5. With turn signal switch operating, check the voltage between the rear combination lamp harness connec-tor and ground.
6. With turn signal switch operating, check the vo ltage between the door mirror lamp harness connector and
ground.
Are the inspection results normal?
YES >> GO TO 5.
NO >> GO TO 3.
3.CHECK TURN SIGNAL LAMP CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between the BCM harness connector and the front combination lamp connector.
4. Check continuity between the BCM harness connector and the rear combination lamp connector.
LH E29 4
Ground
RH E30 4
(+) (−) Voltage
Connector Terminal
LH B25 4
Ground
RH B27 4
(+) (−) Voltage
Connector Terminal
LH D4 9
Ground
RH D107 9
PKIC6370E
PKIC6370E
PKIC6370E
Connector Terminal Connector Terminal Continuity
Front LH M99 (With Intelligent Key system) 60
E29
4Yes
Front RH
61E30
Front LH M19 (Without Intelligent Key sys-
tem) 64
E29
Front RH 63E30
Connector Terminal Connector Terminal Continuity
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TURN SIGNAL LAMP CIRCUITEXL-87
< DTC/CIRCUIT DIAGNOSIS >
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5. Check continuity between the BCM harness connector and the door mirror lamp connector.
Are the inspection results normal?
YES >> GO TO 4.
NO >> Repair or replace the harness or connector.
4.CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Check continuity between the BCM harness connector and ground.
Is the inspection results normal?
YES >> Repair or replace the harness or connector.
NO >> Replace BCM. Refer to BCS-74, "
Removal and Installation" (with Intelligent Key system) or BCS-
137, "Removal and Installation" (without Intelligent Key system).
5.CHECK TURN SIGNAL LAMP GROUND CIRCUIT
1. Check continuity between the front combination lamp harness connector and ground.
2. Check continuity between the rear combination lamp harness connector and ground.
3. Check continuity between the door mirror lamp harness connector and ground.
Are the inspection results normal?
YES >> Replace the malfunctioning lamp.
NO >> Repair or replace the harness or connector.
Rear LH M99 (With Intelligent Key sys-
tem) 60
B25
4Y es
Rear RH
61B27
Rear LH M19 (Without Intelligent Key
system) 64
B25
Rear RH 63B27
Connector Terminal Connector Terminal Continuity
LH M99 (With Intelligent Key sys-
tem) 60
D4
9Y es
RH
61D107
LH M19 (Without Intelligent Key
system) 64
D4
RH 63D107
Connector Terminal—Continuity
LH M99 (With Intelligent Key system) 60
Ground No
RH
61
LH M19 (Without Intelligent Key system) 64
RH 63
ConnectorTerminal —Continuity
Front LH E29
6 Ground Yes
Front RH E30
Connector Terminal —Continuity
Rear LH B25
6 Ground Yes
Rear RH B27
Connector Terminal —Continuity
LH D4
10 Ground Yes
RH D107
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EXL-88
< DTC/CIRCUIT DIAGNOSIS >
FRONT FOG LAMP CIRCUIT
FRONT FOG LAMP CIRCUIT
Component Function CheckINFOID:0000000012432816
1.CHECK FRONT FOG LAMP OPERATION
WITHOUT CONSULT
1. Start IPDM E/R auto active test. Refer to PCS-9, "
Diagnosis Description".
2. Check that the front fog lamp is turned ON.
CONSULT
1. Select EXTERNAL LAMPS of IPDM E/R active test item.
2. While operating the test items, check that the front fog lamp is turned ON.
Is the front fog lamp turned ON?
YES >> Front fog lamp circuit is normal.
NO >> Refer to EXL-88, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000012432817
Regarding Wiring Diagram information, refer to EXL-43, "Wiring Diagram".
1.CHECK FRONT FOG LAMP FUSE
1. Turn ignition switch OFF.
2. Check that the following fuse is not blown:
Is the fuse blown?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit.
2.CHECK FOG LAMP BULB
Check the applicable fog lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?
YES >> GO TO 3.
NO >> Replace the bulb.
3.CHECK FRONT FOG LAMP OUTPUT VOLTAGE
CONSULT ACTIVE TEST
1. Turn ignition switch OFF.
2. Disconnect front fog lamp connector.
3. Turn ignition switch ON.
4. Select EXTERNAL LAMPS of IPDM E/R active test item.
5. While operating the fog lamps, check voltage between front fog lamp harness connector and ground.
FOG : Front fog lamp ON
OFF : Front fog lamp OFF
Unit
Fuse No.Capacity
Front fog lamp 3115 A
(+)
(−) Test item Vo l ta g e
(Approx.)
Front fog lamp
Connector Terminal
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FRONT FOG LAMP CIRCUITEXL-89
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Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 5.
4.CHECK FRONT FOG LAMP GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front fog lamp harness connector and ground.
Is the inspection result normal?
YES >> Replace malfunctioning lamp.
NO >> Repair or replace the harness or connector.
5.CHECK FRONT FOG LAMP RELAY TO FRONT FOG LAMPS CIRCUIT FOR OPEN
1. Disconnect front fog lamp connector E58.
2. Check continuity between the front fog lamp relay harness connector E58 and the front fog lamp connec- tors E53 and E54.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace the harness or connector.
6.CHECK FRONT FOG LAMP RELAY VOLTAGE CIRCUIT
Check the voltage between the front fog lamp relay connector E58 and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace the harness or connector.
7.CHECK IPDM E/R TO FRONT FO G LAMP RELAY CIRCUIT FOR OPEN
1. Disconnect IPDM E/R connector E46.
2. Check continuity between the front fog lamp re lay harness connector E58 and the IPDM E/R connector
E46.
Is the inspection result normal?
YES >> Check the front fog lamp relay. Refer to EXL-90, "Component Inspection".
RH E54
1Ground EXTERNAL LAMPS Fog
Battery voltage
Off 0 V
LH E53 Fog
Battery voltage
Off 0 V
Front fog lamp
GroundContinuity
Connector Terminal
RH E54
2Y es
LH E53
Connector TerminalConnector Terminal Continuity
E58 3E53
1
Ye s
E54 1
(+)
(−)Voltage
Connector Terminal
E58 2
Ground Battery voltage
5
Connector TerminalConnector Terminal Continuity
E58 1E46 71 Yes
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EXL-90
< DTC/CIRCUIT DIAGNOSIS >
FRONT FOG LAMP CIRCUIT
NO >> Repair or replace the harness or connector.
Component InspectionINFOID:0000000012432818
1. CHECK FRONT FOG LAMP RELAY
1. Turn ignition switch OFF.
2. Remove front fog lamp relay.
3. Check the continuity between front fog lamp rela y terminals 3 and 5 when voltage is supplied between ter-
minals 1 and 2.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace front fog lamp relay.
Terminals Condition Continuity
3 and 5 12V direct current supply between terminals 1 and 2
Yes
No current supply No
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EXTERIOR LIGHTING SYSTEM SYMPTOMSEXL-91
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SYMPTOM DIAGNOSIS
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom TableINFOID:0000000012432819
CAUTION:
Perform the self-diagnosis with CONSULT before th e symptom diagnosis. Perform the trouble diagno-
sis if any DTC is detected.
Symptom Possible causeInspection item
Headlamp does not
switch to the high beam. One side
•Fuse
• Harness between IPDM E/R
and the front combination lamp
• Front combination lamp
(High beam relay)
• IPDM E/R Headlamp (HI) circuit
Refer to EXL-77
.
Both sides — Symptom diagnosis
"BOTH SIDE HEADLAMPS DO
NOT SWITCH TO HIGH BEAM"
Refer to EXL-93
.
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 side
Front combination lamp (low
beam relay) —
Both sides • Combination switch (lighting
and turn signal switch)
• Harness between the combina- tion switch (lighting and turn sig-
nal switch) and BCM
•BCM Combination switch (lighting and
turn signal switch)
Refer to BCS-72
(with Intelligent
Key system) or BCS-134
(without
Intelligent Key system).
High beam request signal
•BCM
• IPDM E/R IPDM E/R
Data monitor "HL HI REQ"
IPDM E/R —
Headlamp does not turn
ON. One side
•Bulb
• Harness between IPDM E/R
and the front combination lamp
• Front combination lamp
• IPDM E/R Headlamp (LO) circuit
Refer to EXL-79
.
Both sides — Symptom diagnosis
"BOTH SIDE HEADLAMPS (LO)
ARE NOT TURNED ON"
Refer to EXL-94
.
Headlamp does not turn
OFF. When the ignition
switch is turned ON•BCM
• Combination switch (lighting
and turn signal switch) Combination switch (lighting and
turn signal switch)
Refer to BCS-72
(with Intelligent
Key system) or BCS-134
(without
Intelligent Key system).
Daytime light system does not activate. • Either high beam bulb
• Parking brake switch
• Combination switch (lighting
and turn signal switch)
•BCM
• IPDM E/R
• Daytime light relays
• Harness between IPDM E/R
and daytime light relays. Daytime light system description.
Refer to EXL-9
.
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EXL-92
< SYMPTOM DIAGNOSIS >
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Front fog lamp is not
turned ON.One side
• Front fog lamp bulb
• Harness between the front fog
lamp and ground Front fog lamp circuit
Refer to
EXL-88
.
Both sides —Symptom diagnosis
"BOTH SIDE FRONT FOG LAMPS
ARE NOT TURNED ON"
Refer to
EXL-96
.
Parking lamp is not
turned ON. One side
•Fuse
• Parking lamp bulb
• Harness between IPDM E/R
and the front/rear combination
lamp
• Front/rear combination lamp
• IPDM E/R Parking lamp circuit
Refer to
EXL-82
.
Both sides —Symptom diagnosis
"PARKING, LICENSE PLATE AND
TAIL LAMPS ARE NOT TURNED
ON"
Refer to
EXL-95
.
Turn signal lamp does
not blink. Indicator lamp is nor-
mal.
(The applicable side
performs the high
flasher activation).• Harness between BCM and
each turn signal lamp
• Turn signal lamp bulb Turn signal lamp circuit
Refer to
EXL-85
.
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
warning lamp with the
ignition switch OFF) • The combination meter power
supply and the ground circuit
• Combination meter Combination meter
Power supply and the ground circuit
Refer to
MWI-43
(Type A).
Refer to MWI-98
(Type B).
Symptom
Possible causeInspection item
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