2007 INFINITI M35 ignition

BL-76
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for BCMNIS001XE
*1: In the state that hazard reminder operates.
*2: In the state that room lamp switch is in “DOOR” position.
Terminals and Reference Value for IPDM E/RNIS001XF
Te r m i -
nalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
Approx.
11 V Ignition switch (ACC) Input Ignition switch is in ACC or ON position Battery voltage
12 PFront door switch passenger
sideInput Door open (ON) → Close (OFF) 0 → 8
13 O/L Rear door switch RH Input Door open (ON) → Close (OFF) 0 → Battery voltage
37 LG Key switch signal InputInsert Intelligent Key into key slot. Battery voltage
Remove Intelligent Key from key slot. 0
38 W Ignition switch (ON) InputIgnition switch is in ON or START posi-
tion.Battery voltage
39 L CAN-HInput/
Output——
40 P CAN-LInput/
Output——
42 P Power supply (fuse) Input — Battery voltage
52 B Ground — — 0
55 W Power supply (Fusible link) Input — Battery voltage
57 SB Trunk room lamp switch Input Trunk lid open (ON) → Close (OFF) 0 → Battery voltage
62 V Front door switch driver side Input Door open (ON) → Close (OFF) 0 → Battery voltage
63 R/G Rear door switch LH Input Door open (ON) → Close (OFF) 0 → Battery voltage
Te r m i n a l Wire
ColorItemSignal
Input/
OutputConditionVoltage (V)
Approx.
48 G/B Horn relay Output Press panic alarm bottom.Horn sounds. 0
Horn does not sound. Battery voltage
49 L CAN-HInput/
Output——
50 P CAN-LInput/
Output——

BL-80
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
CAUTION:
When CAN COMM [U1000] and CONTROL UNIT (CAN) [U1010] are displayed, give priority to performing trouble diagnosis.
DATA MONITOR
STRG COMM 1
[B2013]Communication malfunction with steering lock unit is
detectedCheck steering lock unitBL-155
STEERING LOCK UNIT
[B2551]Even if the communication with steering lock unit is
normally performed, the steering lock is malfunctioningReplace steering lock
unitBL-157
INTELLIGENT KEY
[B2552]Internal malfunction is detected in Intelligent Key unitReplace Intelligent Key
unit.BL-161
IGN POWER CIRCUIT
[B2553]It continues for 2 seconds or more that ON power sup-
ply input to Intelligent Key unit is excessively low when
the power supply position is in ON positionCheck Intelligent Key
unit ON power supply
inputBL-161
ACC POWER CIRCUIT
[B2554]It continues for 2 seconds or more that ACC power
supply input to Intelligent Key unit is excessively low
when the power supply position is in ACC or ON posi-
tionCheck Intelligent Key
unit ACC power supply
inputBL-162
STOP LAMP CIRCUIT
[B2555]5V or less is detected at both the stop lamp switch sig-
nal input circuit that is input to Intelligent Key unit and
the monitor input before stop lamp switchCheck stop lamp switchBL-165
ENG START SW
[B2556]Condition that push-button ignition switch is pushed is
detected continuously for 100 seconds or moreCheck push-button igni-
tion switchBL-166
VEHICLE SPEED
[B2557]Some differences occur on one or more vehicle speed
inputs of Intelligent Key unitCheck vehicle speed sig-
nalBL-167
SHIFT POSITION
[B2558]

There is a difference between the shift position input
via CAN communication and the P position input by
detente switch

Vehicle speed (5 km/h or more) is detected continu-
ously for 10 seconds or more even if the shift posi-
tion is detected in P position when the power supply
position is in ON positionCheck shift position inputBL-170
PDU
[B2559]Internal malfunction is detected in PDU Replace PDUBL-172
START POW SUP CIRC
[B2560]Though the engine start operation is not performed,
starter relay in IPDM E/R is ONCheck starter power sup-
plyBL-172
LOW VOLTAGE
[B2562]Battery power supply input to Intelligent Key unit (8.8V
or less) is detected continuously for 1.5 seconds or
moreCheck battery low volt-
ageBL-175
HI VOLTAGE
[B2563]Battery power supply input to Intelligent Key unit (18V
or more) is detected continuously for 90 seconds or
moreCheck for battery high
voltageBL-176
NATS MALFUNCTION
[B2590]Malfunction is detected in immobilizer systemCheck (IVIS) NATS trou-
ble diagnosis procedureBL-244
Suspect Systems
[DTC]Diagnostic item is detected when... Repair work Reference page
Monitor item Content
DR REQ SW Indicates [ON/OFF] condition of door request switch (driver side).
AS REQ SW Indicates [ON/OFF] condition of door request switch (passenger side).
BD/TR REQ SW Indicates [ON/OFF] condition of trunk opener request switch.
ON POS Indicates [ON/OFF] condition of ignition switch in ON position.
ACC POS Indicates [ON/OFF] condition of ignition switch in ACC position.
DOOR STAT SW Indicates [ON/OFF] condition of door unlock sensor.
STOP LAMP SW Indicates [ON/OFF] condition of stop lamp switch.
P RANGE SW Indicates [ON/OFF] condition of park position switch.

BL-84
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Trouble Diagnosis Symptom ChartNIS001XK
ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DOES NOT OPERATE
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis,
and check each symptom.

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

“ENGINE START BY I-KEY” and “LOCK/UNLOCK BY I-KEY” are ON when setting on CONSULT-II.

All doors are closed.
DOOR LOCK/UNLOCK FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis,
and check each symptom.

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

“LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-II.

Intelligent Key is out of key slot.

All doors are closed.
ENGINE SW ILLUMIThis test is able to check push-ignition switch illumination operation.
Push-ignition switch illumination illuminates when “ON” on CONSULT-II screen is touched.
LOCK INDCATORThis test is able to check LOCK indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
ACC INDCATORThis test is able to check ACC indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
IGNITION ON INDThis test is able to check INGITION ON indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
KEY SLOT ILLUMIThis test is able to check key slot illumination operation.
Key slot illumination flash when “ON” on CONSULT-II screen is touched. Test item Description
Symptom Diagnosis/service procedure Reference page
All function of Intelligent Key system dose not
operate.1.Check Intelligent Key unit power supply and ground
circuit.BL-91
2. Check Intelligent Key battery inspection.BL-124
3. Check remote keyless entry receiver.BL-115
4. Replace Intelligent Key unit.BL-123
Symptom Diagnosis/service procedure Reference page
Door lock/unlock do not operate by door
request switch.1.Check Intelligent Key unit power supply and ground
circuit.BL-91
2. Check door switch.BL-94
3. Check key slot.BL-92
4. Replace Intelligent Key unit.BL-123

INTELLIGENT KEY SYSTEM
BL-85
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MA
B
BL
Revision: 2007 April2007 M35/M45
REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis,
and check each symptom.

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

Intelligent Key is out of key slot.

Ignition switch is not ON position.

All doors are closed.
Door lock/unlock does not operate by request
switch (driver side).1. Check door request switch (driver side).BL-992. Check outside key antenna (driver side).BL-106
3. Replace Intelligent Key unit.BL-123
Door lock/unlock does not operate by request
switch (passenger side).1. Check door request switch (passenger side).BL-992. Check outside key antenna (passenger side).BL-106
3. Replace Intelligent Key unit.BL-123
Selective unlock function does not operate by
door request switch (driver side) (other door
lock function operate).1.Check “SELECT UNLOCK FUNCTION” setting in
“WORK SUPPORT”.BL-81
2.Check selective unlock function with a remote control-
ler or door key cylinder.BL-26
3. Replace BCM.BCS-15
Selective unlock function does not operate by
door request switch (passenger side) (other
door lock function operate).1.Check “SELECT UNLOCK FUNCTION” setting in
“WORK SUPPORT”.BL-81
2. Replace Intelligent Key unit.BL-123
Auto lock function does not operate.1.Check “AUTO RELOCK TIMER” setting in “WORK
SUPPORT”.BL-812. Check door switch.BL-94
3. Check key slot.BL-92
4. Replace BCM.BCS-15
Key reminder function does not operate.1.Check “ANTI KEY LOCK IN FUNCTION” setting in
“WORK SUPPORT”.BL-81
2. Check door switch.BL-94
3. Check inside key antenna.BL-110
4. Check unlock sensor.BL-103
5. Check Intelligent Key battery inspection.BL-124
6. Replace Intelligent Key unit.BL-123
Symptom Diagnosis/service procedure Reference page
Symptom Diagnosis/service procedureReference
page
All of the remote keyless entry functions
do not operate.1. Check Intelligent Key battery inspection.BL-124
2. Replace Intelligent Key unit.BL-123
Selective unlock function does not operate
by Intelligent Key.1.Check “SELECT UNLOCK FUNCTION” setting in “WORK SUP-
PORT”.BL-81
2. Check Intelligent Key battery inspection.BL-124
3. Replace Intelligent Key unit.BL-123

INTELLIGENT KEY SYSTEM
BL-87
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Revision: 2007 April2007 M35/M45
HAZARD AND BUZZER REMINDER FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

“LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-II.

“ANSWER BACK FUNCTION” is ON when setting on CONSULT-II.

Ignition switch is in OFF position.

All doors are closed.

Intelligent Key is out of key slot.
HAZARD AND HORN REMINDER FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis,
and check each symptom.

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

“ANSWER BACK FUNCTION” is ON when setting on CONSULT-II.

Ignition switch is in OFF position.

All doors are closed.
Symptom Diagnosis/service procedure Reference page
Hazard reminder does not operate by
request switch.
(Horn reminder operate.)1.Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.BL-81
2. Check hazard function with hazard switch.LT-212
3. Replace Intelligent Key unit.BL-123
Buzzer reminder does not operate by request
switch.
(Hazard reminder operate.)1.Check “ANSWER BACK WITH I-KEY LOCK” or
“ANSWER BACK WITH I-KEY UNLOCK” setting in
“WORK SUPPORT”.BL-81
2. Check Intelligent Key warning buzzer.BL-105
3. Replace Intelligent Key unit.BL-123
Buzzer reminder does not operate by trunk
opener request switch.1.Check “TRUNK/GLASS HATCH OPEN” setting in “WORK
SUPPORT”.BL-812. Check Intelligent Key warning buzzer.BL-105
3. Check trunk opener lid system.BL-207
4. Replace Intelligent Key unitBL-123
Symptom Diagnosis/service procedure Reference page
Hazard reminder does not operate by Intelli-
gent Key button.
(Horn reminder operate.)1.Check “HAZARD ANSWER BACK” setting in “WORK
SUPPORT”.BL-81
2. Check hazard function with hazard switch.LT-212
3. Replace Intelligent KeyBL-123
Horn reminder does not operate by Intelligent
Key button (door lock/unlock button).
(Hazard reminder operate.)1.Check “HORN WITH KEYLESS LOCK” setting in “WORK
SUPPORT”.BL-81
2. Check horn function.BL-122
3. Replace Intelligent Key unitBL-123

BL-88
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
POWER WINDOW DOWN FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

Ignition switch is in OFF or ACC position.

Retained power operation does not operate. Refer to GW-17, "RETAINED POWER OPERATION" .
WARNING FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis,
and check each symptom.

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)
Warning chime functions operating condition is extremely complicated, during operating confirmations, recon-
firm the list above twice in order to ensure proper operation.
Symptom Diagnosis/service procedure Reference page
Power window down function does not
operate.1. Check “P/W DOWN DELAY” setting in “WORK SUPPORT”.BL-81
2. Check Intelligent Key battery inspection.BL-124
Symptom Diagnosis/service procedure Reference page
OFF position warn-
ing does not oper-
ate.For internal1. Check ignition switch position.BL-115
2. Check door switch.BL-94
3. Check warning chime function.BL-123
4. Replace Intelligent Key unit.BL-123
For external1. Check ignition switch position.BL-1152. Check door switch.BL-94
3. Check Intelligent Key warning buzzer.BL-105
4. Replace Intelligent Key unit.BL-123
P position warning does not operate.1. Check Park position switch.BL-113
2. Check door switch.BL-94
3. Check Intelligent Key warning buzzer.BL-105
4. Check warning chime function.BL-123
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
ACC warning does not operate1. Check ignition switch position.BL-1152. Check warning chime function.BL-123
3. Check combination meter display.BL-122
4. Replace Intelligent Key unit.BL-123

INTELLIGENT KEY SYSTEM
BL-89
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Revision: 2007 April2007 M35/M45
Take away warning
does not operate.Door open to close1. Check door switch.BL-94
2. Check inside key antenna.BL-110
3. Check Intelligent Key warning buzzer.BL-105
4. Check warning chime function.BL-123
5. Check key slot illumination.BL-121
6. Check combination meter display.BL-122
7. Replace Intelligent Key unit. BL-123
Push-button ignition
switch operation1. Check ignition switch position.BL-115
2. Check inside key antenna.BL-110
3. Check warning chime function.BL-123
4. Check key slot illumination.BL-121
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
Door is open1. Check ignition switch position.BL-1152. Check inside key antenna.BL-110
3. Check combination meter display.BL-122
4. Replace Intelligent Key unit. BL-123
Take away through
window1.Check “TAKE OUT FROM WINDOW WARN” setting in
“WORK SUPPORT”.BL-81
2. Check inside key antenna.BL-110
3. Check warning chime function.BL-123
4. Check key slot illumination.BL-121
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
Key warning chime does not operate.1. Check key slot.BL-92
2. Check door switch.BL-94
3. Check warning chime function.BL-123
4. Check key slot illumination.BL-121
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
Door lock operation warning chime does
not operate.1. Check door switch.BL-94
2. Check key slot illumination.BL-121
3. Check Intelligent Key warning buzzer.BL-105
4. Check inside key antenna.BL-110
5. Replace Intelligent Key unit. BL-123
Symptom Diagnosis/service procedure Reference page

BL-90
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check CAN Communication SystemNIS001XL
1. CHECK SELF-DIAGNOSTIC RESULTS
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
With CONSULT-II

Connect CONSULT-II, and turn ignition switch ON.

Touch “INTELLIGENT KEY” on “SELECT SYSTEM” screen.

Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.

Check display content in self-diagnostic results.
OK or NG
NO DTC IS DETECTED>> INSPECTION END
CAN COMM CIRCUIT [U1000]>> After printing “SELF-DIAGNOSIS RESULTS”, go to “CAN SYSTEM”,
Refer to LAN-3, "
Precautions When Using CONSULT-II" .
CONTROL UNIT (CAN) [U1010]>> Replace Intelligent Key unit.
CONSULT-II display item DTC code
NO DTC IS DETECTED —
CAN COMM CIRCUIT U1000
CONTROL UNIT (CAN) U1010