Page 497 of 2771

REMOTE KEYLESS ENTRY SYSTEM
BL-63
< SERVICE INFORMATION >
C
D
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F
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MA
B
BL
N
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• When doors are closed:
Without CONSULT-III
Check voltage between BCM connector M18 or M19 terminals 12, 13, 43, 47, 48 and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
2.CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between door switch connector (B) B8 (front LH), B108 (front RH) terminal 2 or (C) B6
(rear LH), B116 (rear RH) terminal 1 or back door lock assembly connector (D) D405 terminal 3 and BCM
connectors (A) M18, M19 terminals 12, 13, 43, 47 and 48. DOOR SW-DR : ON
DOOR SW-AS : ON
DOOR SW-RL : ON
DOOR SW-RR : ON
BACK DOOR SW : ON
DOOR SW-DR : OFF
DOOR SW-AS : OFF
DOOR SW-RL : OFF
DOOR SW-RR : OFF
BACK DOOR SW : OFF
Connector ItemTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M18Front door
switch RH12
GroundOpen
↓
Closed0
↓
Battery voltage Rear door
switch RH13
M19Back door
switch43
Front door
switch LH47
Rear door
switch LH48
LIIA1041E
Page 498 of 2771

BL-64
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
4. Check continuity between door switch connector (B) B8 (front
LH), B108 (front RH) terminal 2 or (C) B6 (rear LH), B116 (rear
RH) terminal 1 or back door lock assembly connector (D) D405
terminal 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK DOOR SWITCHES
FRONT AND REAR DOORS
Check continuity between front door switch terminal 2 or rear door
switch terminal 1 and exposed metal of switch while pressing and
releasing switch.
BACK DOOR
Check continuity between back door lock assembly connector (back
door switch) terminals 3 and 4 while pressing (closing back door)
and releasing (opening back door) switch.
OK or NG
OK >> (Front and rear doors) Switch circuit is OK.
OK >> (Back door) GO TO 4.
NG >> Replace door switch.
4.CHECK BACK DOOR SWITCH GROUND1 - 13 : Continuity should exist.
1 - 48 : Continuity should exist.
2 - 12 : Continuity should exist.
2 - 47 : Continuity should exist.
3 - 43 : Continuity should exist.
1 - Ground : Continuity should not exist.
2 - Ground : Continuity should not exist.
3 - Ground : Continuity should not exist.
WIIA1244E
Door switch is released : Continuity should exist.
Door switch is pushed : Continuity should not exist.
PIIB6899E
When back door is open : Continuity should exist.
When back door is closed : Continuity should not exist.
WIIA1245E
Page 499 of 2771

REMOTE KEYLESS ENTRY SYSTEM
BL-65
< SERVICE INFORMATION >
C
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Check continuity between back door lock assembly connector D405
terminal 4 and ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> Repair or replace harness.
Door Switch Check (Sedan)INFOID:0000000001703987
1.CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT-III
Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR") in DATA MONI-
TOR mode with CONSULT–III. Refer to BL-58, "
CONSULT-III Function (BCM)".
• When doors are open:
• When doors are closed:
Without CONSULT-III
Check voltage between BCM connector M18 or M19 terminals 12, 13, 47, 48 and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
2.CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between door switch connector B8 (Front LH) or B108 (Front RH) terminal 2, B6 (Rear
LH) or B116 (Rear RH) terminal 1 and BCM connector M18, M19 terminals 12, 13, 47 and 48.4 - Ground : Continuity should exist.
WIIA1246E
DOOR SW-DR : ON
DOOR SW-AS : ON
DOOR SW-RL : ON
DOOR SW-RR : ON
DOOR SW-DR : OFF
DOOR SW-AS : OFF
DOOR SW-RL : OFF
DOOR SW-RR : OFF
Connector ItemTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M19Front door
switch LH47
GroundOpen
↓
Closed0
↓
Battery voltage Rear door
switch LH48
M18Front door
switch RH12
Rear door
switch RH13
LIIA1177E
Page 500 of 2771

BL-66
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
4. Check continuity between door switch connector B8 (Front LH)
or B108 (Front RH) terminal 2, B6 (Rear LH) or B116 (Rear RH)
terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK DOOR SWITCHES
Check continuity between door switch terminal and switch case ground.
OK or NG
OK >> Check door switch case ground condition.
NG >> Replace door switch.
Key Switch (Insert) CheckINFOID:0000000001703988
1.CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-III
Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT–III. Refer to BL-36, "
CONSULT-III
Function (BCM)" .
• When key is inserted into ignition key cylinder:
• When key is removed from ignition key cylinder:
Without CONSULT-III
Check voltage between BCM connector and ground.2 - 47 : Continuity should exist.
2 - 12 : Continuity should exist.
1 - 48 : Continuity should exist.
1 - 13 : Continuity should exist.
2 - Ground : Continuity should not exist.
1 - Ground : Continuity should not exist.
LIIA1350E
Component TerminalsCondition of
switchContinuity
Front door switch
LH/RH2 – Case groundPushed No
Released Yes
Rear door switch
LH/RH1 – Case groundPushed No
Released Yes
LIIA0550E
KEY ON SW : ON
KEY ON SW : OFF
Page 501 of 2771

REMOTE KEYLESS ENTRY SYSTEM
BL-67
< SERVICE INFORMATION >
C
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F
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B
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OK or NG
OK >> Key switch circuit is OK.
NG >> GO TO 2.
2.CHECK KEY SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid connector.
3. Check key switch.
OK or NG
OK >> Check the following.
• 10A fuse [No. 14, located in fuse block (J/B)]
• Harness for open or short between key switch and
fuse
• Harness for open or short between BCM and key
switch
NG >> Replace key switch and key lock solenoid.
Hazard Function CheckINFOID:0000000001703989
1.CHECK HAZARD WARNING LAMP
Does hazard warning lamp flash with hazard switch?
OK or NG
OK >> Hazard warning lamp circuit is OK.
NG >> Check hazard circuit. Refer to LT- 4 8
.
Horn Function CheckINFOID:0000000001703990
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-III, then perform the trouble diagnosis of
malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-17, "
CAN Communication
Inspection Using CONSULT-III (Self-Diagnosis)" .
1.CHECK HORN FUNCTION
Does horn sound with horn switch?
OK or NG
OK >> GO TO 2.
NG >> Check horn circuit. Refer to WW-37
.
2.CHECK IPDM E/R INPUT SIGNAL
Check voltage between IPDM E/R connector and ground.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
( + ) ( – )
M18 37 GroundKey is inserted. Battery voltage
Key is removed. 0
LIIA0567E
Terminals Condition Continuity
1 – 2Key is inserted. Yes
Key is removed. No
PIIB6411E
Page 502 of 2771

BL-68
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
OK or NG
OK >> Replace IPDM E/R. Refer to PG-26, "Removal and
Installation of IPDM E/R"
NG >> GO TO 3.
3.CHECK HORN RELAY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector.
3. Check continuity between IPDM E/R harness connector and
horn relay harness connector.
4. Check continuity between IPDM E/R harness connector and
ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness.
Interior Lamp and Ignition Keyhole Illumination Function CheckINFOID:0000000001703991
1.CHECK INTERIOR LAMP AND IGNITION KEYHOLE ILLUMINATION FUNCTION
When map lamp switch is in “DOOR” position, open the front door (LH or RH).
Does interior lamp illuminate?
YES >> Replace BCM. Refer to BCS-18, "Removal and Installation of BCM" .
NO >> Check interior lamp circuit. Refer to LT- 8 9
.
Remote Keyless Entry Receiver CheckINFOID:0000000001703992
1.CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check remote keyless entry receiver connector and ground signal with oscilloscope.
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–)
IPDM E/R connector Terminal
E46 45 Ground Battery voltage
WIIA1251E
AB
Continuity
IPDM E/R
connectorTe r m i n a lHorn relay
connectorTe r m i n a l
E46 45 H-1 1 Yes
A
GroundContinuity
IPDM E/R connector Terminal
E46 45 No
WIIA1252E
Page 503 of 2771

REMOTE KEYLESS ENTRY SYSTEM
BL-69
< SERVICE INFORMATION >
C
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F
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OK or NG
OK >> Remote keyless entry receiver circuit is OK.
NG >> GO TO 2.
2.CHECK REMOTE KEYLESS ENTRY RECEIVER INPUT VOLTAGE
1. Disconnect remote keyless entry receiver connector.
2. Check voltage between remote keyless entry receiver connector M23 terminal 4 and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM connector (A) M18 terminal 19 and remote keyless entry receiver connec-
tor (B) M23 terminal 4.
3. Check continuity between BCM connector (A) M18 terminal 19
and ground.
Te r m i n a l s
Keyfob
conditionSignal
(Reference value) (+)
(–) Remote
keyless
entry re-
ceiver
connectorTe r m i n a l
M23 2 GroundNo function
Any button
is pressed
PIIB6457E
OCC3879D
OCC3880D
Te r m i n a l s
Voltage (V)
(Approx.) (+)
(–) Remote keyless
entry receiver
connectorTe r m i n a l
M23 4 Ground 4.5
PIIB6458E
AB
Continuity
BCM connector TerminalRemote keyless
entry receiver
connectorTe r m i n a l
M18 19 M23 4 Yes
PIIB6459E
Page 504 of 2771

BL-70
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
OK or NG
OK >> Replace BCM. Refer to BCS-18, "Removal and Installation of BCM" .
NG >> Repair or replace the harness.
4.CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT
Check continuity between remote keyless entry receiver connector M23 terminal 1 and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT
Check continuity between BCM connector (A) M18 terminal 18 and remote keyless entry receiver connector
(B) M23 terminal 1.
OK or NG
OK >> Replace BCM. Refer to BCS-18, "Removal and Installa-
tion of BCM" .
NG >> Repair or replace the harness.
6.CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL CIRCUIT
1. Check continuity between BCM connector (A) M18 terminal 20 and remote keyless entry receiver connec-
tor (B) M23 terminal 2.
2. Check continuity between BCM connector (A) M18 terminal 20
and ground.
OK or NG
OK >> Replace remote keyless entry receiver. Refer to BL-73, "Removal and Installation of Remote Key-
less Entry Receiver" .
A
GroundContinuity
BCM connector Terminal
M18 19 No
Remote keyless entry
receiver connectorTe r m i n a l
GroundContinuity
M23 1 Yes
PIIB6460E
AB
Continuity
BCM connector TerminalRemote keyless
entry receiver
connectorTe r m i n a l
M18 18 M23 1 Yes
PIIB6461E
AB
Continuity
BCM connector TerminalRemote keyless
entry receiver
connectorTe r m i n a l
M18 20 M23 2 Yes
A
GroundContinuity
BCM connector Terminal
M18 20 No
PIIB6462E