2006 INFINITI M35 ground

PG-40
PDU (POWER DISTRIBUTION UNIT)
Revision: 2006 January2006 M35/M45
Check PDU Power Supply and Ground CircuitNKS004EL
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect PDU connector.
3. Check voltage between PDU harness connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace PDU power supply circuit.
2. CHECK GROUND CIRCUIT
Check continuity between PDU harness connector and ground.
OK or NG
OK >> Power supply and ground circuits are OK.
NG >> Repair or replace the PDU ground circuit.
Check Push-Button Ignition Switch (Ignition Switch) SystemNKS004EM
1. CHECK PUSH-BUTTON IGNITION SWITCH
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check continuity between Intelligent Key unit harness connector
and ground.
OK or NG
OK >> Push-button ignition switch system is OK.
NG >> GO TO 2.
PDU connectorTerminal
Voltage (V)
(Approx.)
(+) (-)
M3114
Ground Battery voltage 15
17
PIIB6115E
PDU connector Terminal Continuity
M30 10 Ground Yes
PIIB6116E
Intelligent
Key unit
connectorTerminal Condition Continuity
M32 39 GroundPush-button ignition
switch is pressedYe s
Push-button ignition
switch is releasedNo
PIIB6117E

PDU (POWER DISTRIBUTION UNIT)
PG-41
C
D
E
F
G
H
I
J
L
MA
B
PG
Revision: 2006 January2006 M35/M45
2. CHECK PUSH-BUTTON IGNITION SWITCH OPERATION
1. Turn ignition switch OFF.
2. Check continuity push-button ignition switch connector.
OK or NG
OK >> GO TO 3.
NG >> Replace push-button ignition switch.
3. CHECK PUSH-BUTTON IGNITION SWITCH GROUND CIRCUIT SYSTEM
Check continuity between push-button ignition switch harness con-
nector and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace push-button ignition switch ground cir-
cuit.
4. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit harness connector and push-button switch harness connec-
tor.
3. Check continuity between push-button ignition switch harness
connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between Intelligent Key unit and ignition switch.
Push-button
ignition
switch con-
nectorTerminal Condition Continuity
M27 1 4Push-button ignition
switch is pressedYe s
Push-button ignition
switch is releasedNo
PIIB6118E
Push-button ignition
switch connectorTerminal Continuity
M27 1Ground part of
push-button
ignition switchYe s
PIIB6120E
AB
Continuity Push-button
ignition switch
connectorTerminalIntelligent Key
unit connectorTerminal
M27 4 M32 39 Yes
Push-button ignition
switch connectorTerminal Continuity
M27 4 Ground No
PIIB6119E

PG-42
PDU (POWER DISTRIBUTION UNIT)
Revision: 2006 January2006 M35/M45
Check Push-Button Ignition Switch (Indicator Circuit) SystemNKS004EN
1. CHECK PUSH-BUTTON IGNITION SWITCH INDICATOR SYSTEM
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace push-button ignition switch.
2. PUSH-BUTTON IGNITION SWITCH INDICATOR POWER SUPPLY SIGNAL
1. Disconnect push-button ignition switch.
2. Check voltage between push-button ignition switch connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace push-button ignition switch.
Intelligent
Key unit
connectorTe r m i n a l
Push-button ignition
switch conditionVoltage (V)
(Approx)
(+) (-)
M328
Ground part of
push-button
ignition switchLOCK position 0
Except LOCK position 1.2
9ACC position 0
Except ACC position 1.2
10ON position 0
Except ON position 1.2
PIIB6121E
Push-button ignition
switch connectorTerminal
Voltage (V)
(Approx)
(+) (-)
M27 8 Ground Battery voltage
PIIB6122E

PDU (POWER DISTRIBUTION UNIT)
PG-43
C
D
E
F
G
H
I
J
L
MA
B
PG
Revision: 2006 January2006 M35/M45
3. PUSH-BUTTON IGNITION SWITCH INDICATOR GROUND CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector and
push-button ignition switch connector.
3. Check continuity between push-button ignition switch connector.
OK or NG
OK >> Check harness condition.
NG >> Repair or replace harness.
PDU Communication Circuit System 1NKS004EO
1. CHECK PDU COMMUNICATION CIRCUIT 1
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector and
ground.
OK or NG
OK >> Check harness condition.
NG >> GO TO 2.
AB
Continuity
Intelligent Key
unit connectorTerminalPush-button
ignition switch
connectorTe r m i n a l
M328
M275
Ye s 96
10 7
P u s h - b u t t o n i g n i t i o n
switch connectorTerminal Continuity
M275
Ground No 6
7
PIIB6123E
Intelligent Key
unit connectorTerminal ConditionVoltage (V)
(Approx)
M3342 GroundDriver side door is opened
(PDU wake up mode)0
Push-button ignition switch is in
lock state, 30 seconds after all
doors are closed (PDU sleep
mode)Battery
voltage
45 GroundPush-button ignition switch is in
LOCK positionBattery
voltage
Push-button ignition switch is in
ACC position0
Push-button ignition switch is in
ON position0
PIIB6124E

PG-44
PDU (POWER DISTRIBUTION UNIT)
Revision: 2006 January2006 M35/M45
2. CHECK PDU SIGNAL CIRCUIT
1. Disconnect Intelligent Key unit, PDU connector.
2. Check continuity between Intelligent Key unit connector and
PDU harness side connector.
3. Check continuity between PDU connector and ground.
OK or NG
OK >> Replace Intelligent Key.
NG >> Check harness condition between Intelligent Key unit and PDU.
PDU Communication Circuit System 2NKS004EP
1. CHECK PDU COMMUNICATION CIRCUIT 2
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector while
operating push-button ignition switch.
OK or NG
OK >> Check connector condition.
NG >> GO TO 2.
2. CHECK PDU SIGNAL CIRCUIT
1. Disconnect Intelligent Key unit, PDU connectors.
2. Check continuity between Intelligent Key unit connector and
PDU connector.
3. Check continuity between PDU connector and ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair or replace harness between Intelligent Key unit or PDU.
AB
Continuity
PDU connector TerminalIntelligent Key unit
connectorTerminal
M301
M3342
Ye s
845
PDU connector Terminal Continuity
M301
Ground No
8
PIIB6125E
Intelligent Key
unit connectorTerminal Push-button igni-
tion switch posi-
tionVoltage (V)
(Approx)
(+) (-)
M33 44Ground part of
push-button
ignition switchLOCK position 12
ACC position 12
ON position 0
PIIB6126E
AB
Continuity
PDU connec-
torTerminalIntelligent Key
unit connectorTerminal
M30 4 M33 44 Yes
PDU connector Terminal Continuity
M30 4 Ground No
PIIB6127E

PG-46
GROUND
Revision: 2006 January2006 M35/M45
GROUND PFP:00011
Ground Distribution NKS004ER
MAIN HARNESS
CKIT0666E

GROUND
PG-47
C
D
E
F
G
H
I
J
L
MA
B
PG
Revision: 2006 January2006 M35/M45
CKIT0667E

PG-48
GROUND
Revision: 2006 January2006 M35/M45
CKIT0668E