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DIAGNOSIS SYSTEM (BCM)EXL-25
< FUNCTION DIAGNOSIS >
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1: The item is indicated, not monitored.
FLASHER
FLASHER : CONSULT-III Function (BCM - FLASHER)INFOID:0000000001547121
DATA MONITOR
ACTIVE TEST
FR FOG LAMP ON
Transmits the front fog lamp light request signal to IPDM E/R via CAN
communication to turn the front fog lamp ON.
OFF Stops the front fog lamp request signal transmission.
CORNERING LAMP
1
RH —
LH
OFF
CARGO LAMP ON
Tramsmits the cargo lamp request signal to the IPDM E/R via CAN com-
munication to turn on the cargo lamp.
OFF Stops the cargo lamp request signal transmission.
Test item
Operation Description
Monitor item
[Unit] Description
IGN ON SW
[ON/OFF] The switch status input from the ignition switch
HAZARD SW
[ON/OFF] The switch status input from the hazard warning switch
TURN SIGNAL R
[ON/OFF] Each switch condition that BCM judges from the combination switch reading function
TURN SIGNAL L
[ON/OFF]
BRAKE SW
[ON/OFF] The switch status input from the brake switch
Test item
Operation Description
FLASHER RH Blinks right turn signal lamp.
LH Blinks left turn signal lamp.
OFF Turns turn signal lamps (right and left) OFF.
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EXL-26
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (IPDM E/R)
DIAGNOSIS SYSTEM (IPDM E/R)
CONSULT - III Function (IPDM E/R)INFOID:0000000001547122
APPLICATION ITEM
CONSULT-III performs the following functi ons via CAN communication with IPDM E/R.
DATA MONITOR
Monitor item
ACTIVE TEST
Te s t i t e m
Diagnosis mode Description
Self Diagnostic Result Displays the diagnosis results judged by IPDM E/R.
Data Monitor Displays the real-time input/output data from IPDM E/R input/output data.
Active Test IPDM E/R can provide a drive signal to electronic components to check their operations.
CAN Diag Support Monitor The results of transmit/receive diagnosis of CAN communication can be read.
Monitor Item
[Unit] MAIN SIG-
NALS Description
TAIL & CLR REQ
[Off/On] ×Displays the status of the tail and clearance lamp request signal received from
BCM via CAN communication.
HL LO REQ
[Off/On] ×
Displays the status of the low beam request signal received from BCM via CAN
communication.
HL HI REQ
[Off/On] ×
Displays the status of the high beam request signal received from BCM via CAN
communication.
FR FOG REQ
[Off/On] ×Displays the status of the front fog light request signal received from BCM via
CAN communication.
IGN RLY
[Off/On] ×
Displays the status of the ignition relay judged by the IPDM E/R-.
DTRL REQ
[Off] ×
Displays the status of the daytime light request signal received from the BCM via
CAN communication.
Test item
Operation Description
EXTERNAL LAMPS Off
OFF
TAIL Operates the tail lamp relay.
Lo Operates the headlamp low relay.
Hi Operates the headlamp low relay and ON/OFF the headlamp high relay at 1 sec-
ond intervals.
Fog Operates the front fog lamp relay.
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POWER SUPPLY AND GROUND CIRCUITEXL-27
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COMPONENT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis ProcedureINFOID:0000000001547123
For BCM power supply and ground circuit information, refer to BCS-32, "Diagnosis Procedure".
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000001547124
For IPDM E/R power supply and ground circuit information, refer to PCS-18, "Diagnosis Procedure" .
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EXL-28
< COMPONENT DIAGNOSIS >
HEADLAMP (HI) CIRCUIT
HEADLAMP (HI) CIRCUIT
DescriptionINFOID:0000000001547125
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on
inputs from the BCM via the CAN communication lines. When the headlamp high relay is energized, power
flows through fuses 34 and 35, located in the IPDM E/R. Power then flows to the front combination lamps to
the headlamp high beam.
Component Function CheckINFOID:0000000001547126
1.CHECK HEADLAMP (HI) OPERATION
WITHOUT CONTULT-III
1. Start IPDM E/R auto active test. Refer to PCS-12, "
Diagnosis Description".
2. Check that the headlamp switches to the high beam. NOTE:
HI/LO is repeated 1 second each when usi ng the IPDM E/R auto active test.
CONSULT-III
1. Select "EXTERNAL LAMP" of IPDM E/R active test item.
2. With the test item operating, check that the headlamp switches to high beam.
Does the headlamp switch to high beam?
YES >> Headlamp (HI) circuit is normal.
NO >> Refer to EXL-28, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001547127
1.CHECK HEADLAMP (HI) FUSES
1. Turn the ignition switch OFF.
2. Check that the following fuses are not open.
Is the fuse open?
YES >> Repair the harness and replace the fuse.
NO >> GO TO 2
2.CHECK HEADLAMP (HI) OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector E11 or E107.
3. Turn the ignition switch ON.
4. Turn the high beam headlamps ON.
5. With the high beam headlamps ON, check the voltage between the combination lamp connector and ground.
Are the voltage readings as specified?
YES >> GO TO 4
NO >> GO TO 3 HI : Headlamp switches to the high beam.
OFF : Headlamp OFF
Unit
LocationFuse No.Capacity
Headlamp HI (LH) IPDM E/R3410A
Headlamp HI (RH) IPDM E/R3510A
(+)
(−)Voltage
Connector Terminal
LH E11 6
Ground Battery voltage
RH E107 6
ALLIA0713GB
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HEADLAMP (HI) CIRCUITEXL-29
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3.CHECK HEADLAMP (HI) CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E123.
3. Check continuity between the IPDM E/R harness connector (A) and the front combination lamp harness connector (B).
Does continuity exist?
YES >> GO TO 4
NO >> Repair the harnesses or connectors.
4.CHECK FRONT COMBINATION LAMP (HI) GROUND CIRCUIT
Check continuity between the front combination lamp harness con-
nector terminal and ground.
Does continuity exist?
YES >> Inspect the headlamp bulb.
NO >> Repair the harness.
AB Continuity
Connector Terminal Connector Terminal
LH E123 55
E11 6
Ye s
RH 56E107 6
ALLIA0714GB
Connector Terminal —Continuity
LH E11 2
Ground Yes
RH E107 2
ALLIA0715GB
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EXL-30
< COMPONENT DIAGNOSIS >
HEADLAMP (LO) CIRCUIT
HEADLAMP (LO) CIRCUIT
DescriptionINFOID:0000000001547128
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp low relay based on
inputs from the BCM via the CAN communication lines. When the headlamp low relay is energized, power
flows through fuses 40 and 41, located in the IPDM E/R. Power then flows to the front combination lamps to
the headlamp low beam.
Component Function CheckINFOID:0000000001547129
1.CHECK HEADLAMP (LO) OPERATION
WITHOUT CONSULT-III
1. Start IPDM E/R auto active test. Refer to PCS-12, "
Diagnosis Description".
2. Check that the headlamp is turned ON. NOTE:
HI/LO is repeated 1 second each when usi ng the IPDM E/R auto active test.
CONSULT-III
1. Select "EXTERNAL LAMP" of IPDM E/R active test item.
2. With the test items operating, check that the headlamp is turned ON.
Is the headlamp turned ON?
YES >> Headlamp (LO) is normal.
NO >> Refer to EXL-30, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001547130
1.CHECK HEADLAMP (LO) FUSES
1. Turn the ignition switch OFF.
2. Check that the following fuses are not open.
Is the fuse open?
YES >> Repair the harness and replace the fuse.
NO >> GO TO 2
2.CHECK HEADLAMP (LO) OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector.
3. Turn the ignition switch ON.
4. Turn the low beam headlamps ON.
5. With the low beam headlamps ON, check the voltage between the combination lamp connector and ground.
Is voltage reading as specified?
YES >> GO TO 4
NO >> GO TO 3 LO : Headlamp ON
OFF : Headlamp OFF
Unit
LocationFuse No.Capacity
Headlamp LO (LH) IPDM E/R4015A
Headlamp LO (RH) IPDM E/R4115A
(+)
(−)Voltage
Connector Terminal
LH E11 5 Ground Battery voltage
RH E107 5
ALLIA0716GB
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HEADLAMP (LO) CIRCUITEXL-31
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3.CHECK HEADLAMP (LO) CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between the IPDM E/R harness connector and the front combination lamp harness connector.
Does continuity exist?
YES >> GO TO 4
NO >> Repair the harnesses or connectors.
4.CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT
Check continuity between the front combination lamp harness con-
nector terminal and ground.
Does continuity exist?
YES >> Inspect the headlamp bulb.
NO >> Repair the harness.
AB Continuity
Connector Terminal Connector Terminal
LH E123 52
E11 5
Ye s
RH 54E107 5
ALLIA0717GB
Connector Terminal —Continuity
LH E11 1
Ground Yes
RH E107 1
ALLIA0718GB
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EXL-32
< COMPONENT DIAGNOSIS >
FRONT FOG LAMP CIRCUIT
FRONT FOG LAMP CIRCUIT
DescriptionINFOID:0000000001547131
The IPDM E/R (intelligent power distribution module engine room) controls the front fog lamp relay based on
inputs from the BCM via the CAN communication lines. When the front fog lamp relay is energized, power
flows from the front fog lamp relay in the IPDM E/R to the front fog lamps.
Component Function CheckINFOID:0000000001547132
1.CHECK FRONT FOG LAMP OPERATION
WITHOUT CONSULT-III
1. Activate IPDM E/R auto active test. Refer to PCS-12, "
Diagnosis Description".
2. Check that the front fog lamp is turned ON.
CONSULT-III
1. Select "EXTERNAL LAMP" of IPDM E/R active test item.
2. With 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-32, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001547133
1.CHECK FRONT FOG LAMP FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuses are not open.
Is the fuse open?
YES >> Repair the harness and replace the fuse.
NO >> GO TO 2
2.CHECK FRONT FOG LAMP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front fog/turn lamp connector.
3. Turn the ignition switch ON.
4. Turn the front fog lamps ON.
5. Check the voltage between the fog/turn lamp connector and ground.
Are the voltage readings as specified?
YES >> GO TO 4
NO >> GO TO 3
3.CHECK FRONT FOG LAMP OPEN CIRCUIT FOG : Front fog lamp ON
OFF : Front fog lamp OFF
Unit
LocationFuse No.Capacity
Front fog lamp IPDM E/R5620A
(+)
(−)V olt a g e
Connector Terminal
LH E101 1
Ground Battery voltage
RH E102 1
ALLIA0719GB
Revision: March 2010 2008 QX56