2005 INFINITI FX35 key

BL-142
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
3. CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between each outside key antenna connector D2 (driver side), D32 (passenger side), D62 (rear door LH), D82 (rear door RH), D116 (back door) terminals 1, 2, 6, 7 and Intelligent Key unit con-
nector M34 terminals 17, 18, 19, 20, 37, and 38.
3. Check continuity between each out side key antenna connector terminals 1, 2, 6, 7 and ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Replace harness between outside key antenna and Intelligent Key unit.
Iten Terminal
(Wire color) Continuity
Back door 1 (L/B) 17 (OR/L)
Ye s
2 (W/B) 18 (PU/R)
Driver side 7 (BR/W) 19 (SB)
6 (R/Y) 20 (R/G)
Passenger side 7 (G/Y) 37 (G)
6 (L/Y) 38 (PU/W)
Rear door LH 1 (G/Y) 19 (SB)
2 (PU/W) 20 (R/G)
Rear door RH 1 (G/Y) 37 (G)
2 (PU/W) 38 (PU/W)
Item Te r m i n a l
(Wire color) Continuity
Back door 1 (L/B)
Ground No
2 (W/B)
Rear door
(LH, RH) 1 (G/Y)
2 (PU/W)
Driver side 7 (BR/W)
6 (R/Y)
Passenger side 7 (G/Y)
6 (L/Y)
PIIA9932E

INTELLIGENT KEY SYSTEM BL-143
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Revision: 2005 July 2005 FX
Check Inside Key AntennaAIS004NK
1. CHECK INSIDE KEY ANTENNA POWER SUPPLY CIRCUIT
Push ignition knob and use an oscilloscope to check voltage waveform between Intelligent Key unit connector
M34 terminals 13 (luggage room), 15 (dash board), 35 (dash board) and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK INSIDE KEY ANTENNA OPERATION
1. Disconnect inside key antenna connector.
2. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace malfunctioning inside key antenna.
Terminal (Wire color) Condition Signal
(Reference value)
(+) (-)
Luggage room:
13 (Y)
Ground Push igni-
tion knob.
Dash board:
15 (W/R)
35 (LG)
PIIA6753ESIIA1910J
1 - 2 : Continuity should exist.
PIIA9933E

BL-144
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
3. CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector.
2. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1, 2 and Intelligent Key unit connector terminals 13, 14, 15, 16, 35 and 36.
3. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1 and 2 and
ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair or replace harness between inside key antenna and Intelligent Key unit.
Check Steering Lock UnitAIS004NL
1. CHECK STEERING LOCK UNIT POWER SUPPLY
1. Turn ignition knob LOCK position.
2. Disconnect steering lock unit connector.
3. Check voltage between steering lock unit connector M26 terminal 1 (L/R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace steering lock unit power supply circuit.
Item Terminal Continuity
Inside key antenna-3 (Luggage room) 1 (OR/L) 13 (Y)
Ye s
2 (W/L) 14 (BR)
Inside key antenna-1 (Dash board) 1 (W/R) 15 (W/R)
2 (B/R) 16 (B/R)
Inside key antenna-2 (Dash board) 1 (LG) 35 (LG)
2 (PU) 36 (PU)
Item Terminal Continuity
Inside key antenna-3 (Luggage room) 1 (OR/L)
Ground No
2 (W/L)
Inside key antenna-1 (Dash board) 1 (W/R)
2 (B/R)
Inside key antenna-2 (Dash board) 1 (LG)
2 (PU)
PIIA6755E
1 (L/R) - Ground : Battery voltage
PIIA6797E

INTELLIGENT KEY SYSTEM BL-145
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Revision: 2005 July 2005 FX
2. CHECK STEERING LOCK UNIT GROUND CIRCUIT
Check continuity between steering lock unit connector M26 terminal 4 (Y/B) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK STEERING LOCK COMMUNICATION CIRCUIT
1. Connect steering lock unit connector.
2. Check voltage between Intelligent Key unit connector M34 terminal 1 (R/W) and ground.
3. Immediately after pushing ignition knob, use an oscilloscope to check voltage waveform between Intelli- gent Key unit connector M34 terminal 32 (R/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace Intelligent Key unit. 4 (Y/B) - Ground : Continuity should exist.
PIIA6798E
1 (R/W) - Ground : Approx. 5V
MIIB0385E
Terminal
(Wire color) Condition Signal
(Reference value)
(+) (-)
32
(R/B) Ground Immediately after
ignition knob push-
ing.
MIIB0386ESIIA1911J

BL-146
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
4. CHECK STEERING LOCK UNIT COMMUNICATION CIRCUIT
1. Disconnect Intelligent Key unit and steering lock unit connectors.
2. Check continuity between Intelligent Key unit connector M34 terminals 1, 31, 32 and steering lock unit connector M26 terminals 2, 3, 4.
3. Check continuity between steering lock unit connector M26 ter- minals 2, 3, 4 and ground.
OK or NG
OK >> Replace steering lock unit.

After replacing steering lock unit, perform registration procedure. Refer to “CONSULT-II Opera-
tion Manual NATS-IVIS/NVIS”.
NG >> Repair or replace harness between steering lock unit and Intelligent Key unit.
Check Stop Lamp SwitchAIS004NM
1. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Disconnect stop lamp switch connector.
2. Check voltage between stop lamp switch connector E210 termi- nal 1 (GY) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between stop lamp switch and fuse.
2. CHECK STOP LAMP SWITCH OPERATION
Check continuity between stop lamp switch connector E210 terminal
1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace stop lamp switch. 1 (R/W) - 2 (R/W) : Continuity should exist.
31 (Y/B) - 4 (Y/B) : Continuity should exist.
32 (R/B) - 3 (R/B) : Continuity should exist.
2 (R/W) - Ground : Continuity should not exist. 3 (R/B) - Ground : Continuity should not exist.4 (Y/B) - Ground : Continuity should not exist.
PIIA6799E
1 (GY) - Ground : Battery voltage
PIIA6811E
1 - 2
Brake pedal depressed : Continuity should exist.
Brake pedal not
depressed : Continuity should not exist.
PIIA6800E

INTELLIGENT KEY SYSTEM BL-147
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Revision: 2005 July 2005 FX
3. CHECK STOP LAMP SWITCH GROUND CIRCUIT
1. Check continuity between stop lamp switch connector E210 ter- minal 2 (P) and Intelligent Key unit connector M34 terminal 26
(P/L).
2. Check continuity between stop lamp switch connector E210 ter- minal 2 (P) and ground.
OK or NG
OK >> Stop lamp switch is OK.
NG >> Repair or replace harness.
Check Detention SwitchAIS004NN
1. CHECK DETENTION SWITCH INPUT SIGNAL
1. Turn ignition knob LOCK position.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2. 2 (P) - 26 (P/L) : Continuity should exist.
2 (P) - Ground : Continuity should not exist.
PIIA6801E
Connector Terminal
(Wire color) Condition Voltage (V)
(Approx.)
(+) (-)
M34 39 (R/Y) Ground When selector lever is locked
at the “P” position 0
When selector lever is not
locked at the “P” position Battery voltage
PIIA6805E

BL-148
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
2. CHECK DETENTION SWITCH CIRCUIT
1. Disconnect A/T device (detention switch) connector.
2. Check voltage between A/T device (detention switch) connector M67 terminal 3 (R/Y) and ground. (Check harness for open.)
3. Check continuity between A/T device (detention switch) connec- tor M67 terminals 3 (R/Y) and ground. (Check harness for
short.)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DETENTION SWITCH
Check continuity between A/T device (detention switch) terminals 2 and 3.
OK or NG
OK >> GO TO 4.
NG >> Replace back A/T device (detention switch). 3 (R/Y) – Ground : Battery voltage
PIIA6806E
3 (R/Y) – Ground : Continuity should not exist.
PIIA6807E
Terminal Condition Continuity
23 When selector lever is not
locked at the “P” position No
When selector lever is
locked at the “P” position Ye s
PIIA6808E

INTELLIGENT KEY SYSTEM BL-149
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Revision: 2005 July 2005 FX
4. DETENTION SWITCH GROUND CIRCUIT INSPECTION
Check continuity between A/T device (detention switch) connector
M67 terminal 2 (B) and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Select Unlock RelayAIS004NO
1. CHECK SELECT UNLOCK RELAY POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect passenger side select unlock relay connector.
3. Check voltage between passenger side select unlock relay con- nector M30 terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace passenger side select unlock relay power supply circuit.
2. CHECK HARNESS
1. Disconnect Intelligent Key unit connector.
2. Check continuity between passenger side select unlock relay connector M30 terminal 2 and Intelligent Key unit connector
M34 terminal 40.
3. Check continuity between passenger side select unlock relay connector M30 terminal 2 and ground.
OK or NG
OK >> Replace passenger side select unlock relay.
NG >> Repair or replace harness between passenger side select unlock relay and Intelligent Key unit. 2 (B) – Ground : Continuity should exist.
PIIA6809E
1 (L/R) – Ground : Approx. 12V
PIIA6954E
2 (BR/W) – 40 (BR/W) : Continuity should exist.
2 (BR/W) – Ground : Continuity should not exist.
PIIA6955E