Nissan Pathfinder (2006 year). Manual - part 94

REMOTE KEYLESS ENTRY SYSTEM

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2006 Pathfinder

Trouble Diagnosis Procedure

EIS007P5

1.

Check the symptom and customer's requests.

2.

Understand outline of system. Refer to 

BL-41, "System Description"

 .

3.

Confirm system operation. 

●

Check that the power door lock system operates normally. Refer to 

BL-16, "POWER DOOR LOCK

SYSTEM"

 .

4.

Perform pre-diagnosis inspection. Refer to 

BL-53, "Pre-Diagnosis Inspection"

 .

5.

Refer to trouble diagnosis chart by symptom, repair or replace any malfunctioning parts. Refer to 

BL-54,

"Trouble Diagnoses"

 .

6.

Inspection End.

Pre-Diagnosis Inspection

EIS007P6

BCM POWER SUPPLY AND GROUND CIRCUIT INSPECTION

Refer to 

BCS-12, "Terminals and Reference Values for BCM"

 .

BL-54

REMOTE KEYLESS ENTRY SYSTEM

2006 Pathfinder

Trouble Diagnoses

EIS007P7

SYMPTOM CHART

NOTE:

●

Always check the "Trouble Diagnosis Procedure" before troubleshooting. Refer to 

BL-53, "Trouble Diag-

nosis Procedure"

 .

●

Always check keyfob battery before replacing keyfob. Refer to 

BL-59, "Keyfob Battery and Function

Check"

 .

●

The panic alarm operation of remote keyless entry system does not activate with the ignition key inserted
in the ignition key cylinder.

●

Use Remote Keyless Entry Tester J-43241 (follow instructions on tester) to check operation of keyfob
before replacing keyfob.

Symptom

Diagnoses/service procedure

Reference 

page

All functions of remote keyless entry system do not 
operate.

1. Keyfob battery and function check (use Remote Keyless Entry 
Tester J-43241)

NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.

BL-59

2. Check BCM and remote keyless entry receiver.

BL-60

The new ID of keyfob cannot be entered.

1. Keyfob battery and function check (use Remote Keyless Entry 
Tester J-43241)

NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.

BL-59

2. Key switch (insert) check

BL-56

3. Door switch check

BL-57

4. ACC power check

BL-61

5. Replace BCM.

BCS-27

Door lock or unlock does not function.
(If the power door lock system does not operate 
manually, check power door lock system. Refer to 

BL-16, "POWER DOOR LOCK SYSTEM"

 )

1. Keyfob battery and function check (use Remote Keyless Entry 
Tester J-43241)

NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.

BL-59

2. Replace BCM.

BCS-27

Hazard and horn reminder does not activate prop-
erly when pressing lock or unlock button of keyfob.

1. Check hazard and horn reminder mode with CONSULT-II.

NOTE:
Hazard and horn reminder mode can be changed.
First check the hazard and horn reminder mode setting.

BL-51

2. Door switch check

BL-57

3. Replace BCM.

BCS-27

Hazard reminder does not activate properly when 
pressing lock or unlock button of keyfob.
(Horn reminder OK)

1. Check hazard reminder mode with CONSULT-II.

NOTE:
Hazard reminder mode can be changed.
First check the hazard reminder mode setting.

BL-51

2. Check hazard function with hazard switch.

—

3. Replace BCM.

BCS-27

Horn reminder does not activate properly when 
pressing lock or unlock button of keyfob.
(Hazard reminder OK)

1. Check horn reminder mode with CONSULT-II.

NOTE:
Horn reminder mode can be changed.
First check the horn reminder mode setting.

BL-51

2. Check horn function with horn switch.

—

3. IPDM E/R operation check

BL-62

4. Replace BCM.

BCS-27

REMOTE KEYLESS ENTRY SYSTEM

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2006 Pathfinder

Room lamp and ignition keyhole illumination opera-
tion do not activate properly.

1. Room lamp operation check

BL-62

2. Ignition keyhole illumination operation check

BL-63

3. Door switch check

BL-57

4. Replace BCM.

BCS-27

Panic alarm (horn and headlamp) does not activate 
when panic alarm button is continuously pressed.

1. Keyfob battery and function check (use Remote Keyless Entry 
Tester J-43241)

NOTE:
If the result of keyfob function check is OK, keyfob is not malfunc-
tioning.

BL-59

2. Key switch (insert) check

BL-56

3. Replace BCM.

BCS-27

Auto door lock operation does not activate properly.
(All other remote keyless entry functions OK.)

1. Check auto door lock operation mode with CONSULT-II.

NOTE:
Auto door lock operation mode can be changed.
First check the auto door lock operation mode setting.

BL-52

2. Replace BCM.

BCS-27

Symptom

Diagnoses/service procedure

Reference 

page

BL-56

REMOTE KEYLESS ENTRY SYSTEM

2006 Pathfinder

Key Switch (Insert) Check

EIS007P8

1. 

CHECK KEY SWITCH INPUT SIGNAL

With CONSULT-II

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT–II. Refer to 

BL-27, "DATA MONI-

TOR"

 .

●

When key is inserted to ignition key cylinder:

●

When key is removed from ignition key cylinder:

Without CONSULT-II

Check voltage between BCM connector M18 terminal 37 and
ground.

OK or NG

OK

>> Key switch (insert) circuit is OK.

NG

>> GO TO 2.

2. 

CHECK KEY SWITCH (INSERT)

1.

Turn ignition switch OFF.

2.

Disconnect key switch connector.

3.

Check continuity between key switch terminals.

OK or NG

OK

>> Repair or replace harness.

NG

>> Replace key switch.

KEY ON SW

: ON

KEY ON SW

: OFF

LIIA0169E

Connec-

tor

Terminal

Condition

Voltage (V)

(+)

(–)

M18

37

Ground

Key is inserted.

Battery voltage

Key is removed.

0

LIIA0567E

Terminals

Condition

Continuity

1 – 2

Key is inserted.

Yes

Key is removed.

No

WIIA0559E

REMOTE KEYLESS ENTRY SYSTEM

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2006 Pathfinder

Door Switch Check

EIS007P9

1. 

CHECK DOOR SWITCHES INPUT SIGNAL

With CONSULT-II

Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR
SW") in DATA MONITOR mode with CONSULT–II. Refer to 

BL-27, "DATA MONITOR"

 .

●

When doors are open:

●

When doors are closed:

Without CONSULT-II

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.

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

LIIA0665E

Connec-

tor

Item

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

M19

Back door 

switch

43

Ground

Open

↓

Closed

0

↓

Battery voltage

Front door 

switch LH

47

Rear door 

switch LH

48

M18

Front door 

switch RH

12

Rear door 
switch RH

13

LIIA1041E

BL-58

REMOTE KEYLESS ENTRY SYSTEM

2006 Pathfinder

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), B108 (Front RH), B18 (Rear LH), B116
(Rear RH) terminal 2 or D502 (Back) terminal 3 and BCM connector M18, M19 terminals 12, 13, 43, 47
and 48.

4.

Check continuity between door switch connector B8 (Front LH),
B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or
D502 (Back) 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 or rear door switch terminal 2 and
exposed metal of switch while pressing and releasing switch.

BACK DOOR
Check continuity between back door switch terminals 3 and 1 while
pressing and releasing switch.

OK or NG

OK

>> Check switch case ground condition (front and rear

door) or ground circuit (back door).

NG

>> Replace door switch.

2 - 47

: Continuity should exist.

2 - 12

: Continuity should exist.

2 - 48

: Continuity should exist.

2 - 13

: Continuity should exist.

3 - 43

: Continuity should exist.

2 - Ground

: Continuity should not exist.

3 - Ground

: Continuity should not exist.

WIIA0690E

When front or rear door 
switch is released

: Continuity should exist.

When front or rear door 
switch is pushed

: Continuity should not exist.

WIIA0644E

When back door switch 
is released

: Continuity should exist.

When back door switch 
is pushed

: Continuity should not exist.

WIIA0645E

REMOTE KEYLESS ENTRY SYSTEM

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2006 Pathfinder

Keyfob Battery and Function Check

EIS007PA

1. 

CHECK KEYFOB BATTERY

Remove battery and measure voltage across battery positive and negative terminals, (+) and (

−

).

NOTE:
Keyfob does not function if battery is not set correctly.

OK or NG

OK

>> GO TO 2.

NG

>> Replace battery.

2. 

CHECK KEYFOB FUNCTION

 With CONSULT-II

Check keyfob function in “DATA MONITOR” mode with CONSULT-II.

When pushing each button of keyfob, the corresponding monitor item should
be turned as follows.

 Without CONSULT-II

Check keyfob function using Remote Keyless Entry Tester J-43241.

OK or NG

OK

>> WITH CONSULT-II: Keyfob, remote keyless entry receiver and wiring harness between BCM and

remote keyless entry receiver are OK. Replace BCM. Refer to 

BCS-27, "Removal and Installation"

.

OK

>> WITHOUT CONSULT-II: Keyfob is OK. Further inspection is necessary. Refer to 

BL-54, "SYMP-

TOM CHART"

 .

NG

>> WITH CONSULT-II: Further inspection is necessary. Refer to 

BL-54, "SYMPTOM CHART"

 .

NG

>> WITHOUT CONSULT-II: Replace keyfob. Refer to 

BL-64, "ID Code Entry Procedure"

 .

Voltage

: 2.5V - 3.0V

SEL237W

Condition

Monitor item

Pushing LOCK

KEYLESS LOCK

: ON

Pushing UNLOCK

KEYLESS UNLOCK

: ON

Keep pushing UNLOCK

RKE KEEP UNLK 
turns to ON 3 seconds 
after UNLOCK button 
is pushed.

Pushing PANIC

KEYLESS PANIC

: ON

Pushing LOCK and UNLOCK 
at the same time

RKE LCK-UNLCK

: ON

LIIA1052E

BL-60

REMOTE KEYLESS ENTRY SYSTEM

2006 Pathfinder

Remote Keyless Entry Receiver System Check

EIS007PB

1. 

REMOTE KEYLESS ENTRY RECEIVER SIGNAL

Check signal voltage waveform between BCM connector M18 termi-
nal 20 and ground using an oscilloscope.

OK or NG

OK

>> Remote keyless entry receiver signal power supply, ground and signal circuits are OK. Replace

BCM. Refer to 

BCS-27, "Removal and Installation"

 .

NG

>> GO TO 2.

2. 

REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY INSPECTION

Check signal voltage waveform between BCM connector M18 termi-
nal 19 and ground using an oscilloscope.

OK or NG

OK

>> GO TO 3.

NG

>> Replace BCM. Refer to 

BCS-27, "Removal and Installa-

tion"

 .

3. 

REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT INSPECTION (BCM)

Check continuity between BCM connector M18 terminal 18 and
ground.

OK or NG

OK

>> GO TO 4.

NG

>> Replace BCM. Refer to 

BCS-27, "Removal and Installa-

tion"

 .

Condition:

Keyfob buttons released

: Refer to 

BL-48, "Termi-

nals and Reference Value 
for BCM"

 .

Keyfob buttons pressed

: Refer to 

BL-48, "Termi-

nals and Reference Value 
for BCM"

 .

LIIA1275E

19 - Ground

: Refer to 

BL-48, "Termi-

nals and Reference Value 
for BCM"

 .

WIIA0433E

18 - Ground

: Continuity should exist

WIIA0434E