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![INFINITI M35 2007 Factory Service Manual EC-1400
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FUEL PUMP
Revision: 2007 April2007 M35/M45
11 . CHECK CONDENSER
Refer to EC-1401, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Replace condenser.
12. CHECK FUEL PUMP POWE INFINITI M35 2007 Factory Service Manual EC-1400
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FUEL PUMP
Revision: 2007 April2007 M35/M45
11 . CHECK CONDENSER
Refer to EC-1401, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Replace condenser.
12. CHECK FUEL PUMP POWE](/manual-img/42/57024/w960_57024-2928.png)
EC-1400
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FUEL PUMP
Revision: 2007 April2007 M35/M45
11 . CHECK CONDENSER
Refer to EC-1401, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Replace condenser.
12. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect harness connectors B65, B434.
3. Disconnect “fuel level sensor unit and fuel pump” harness con-
nector (1).
–Illustration shows the view with rear seat cushion and inspection
hole cover (RH) removed.
–: Vehicle front
4. Check harness continuity between the following;
harness connector B434 terminal 7 and “fuel level sensor unit and fuel pump” terminal 1,
“fuel level sensor unit and fuel pump” terminal 3 and harness connector B434 terminal 16,
harness connector B434 terminal 16 and dropping resistor terminal 2,
dropping resistor terminal 1 and ground.
Refer to Wiring Diagram.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. DETECT MALFUNCTIONING PART
Check the following.
Harness connector B65, B434
Harness for open or short between “fuel level sensor unit and fuel pump” and harness connector B434
Harness for open or short between “fuel level sensor unit and fuel pump” and dropping resistor
Harness for open or short between dropping resistor and ground
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK DROPPING RESISTOR
Refer to EC-1401, "
Component Inspection" .
OK or NG
OK >> GO TO 15.
NG >> Replace dropping resistor.
PBIB2706E
Continuity should exist.
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FUEL PUMP
EC-1401
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15. CHECK FUEL PUMP
Refer to EC-1401, "
Component Inspection" .
OK or NG
OK >> GO TO 16.
NG >> Replace fuel pump.
16. CHECK INTERMITTENT INCIDENT
Refer to EC-857, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair or replace harness or connectors.
Component InspectionNBS005Q5
FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit and fuel pump” harness connector.
3. Check resistance between “fuel level sensor unit and fuel pump”
terminals 1 and 3.
DROPPING RESISTOR
1. Turn ignition switch OFF.
2. Disconnect dropping resistor harness connector.
3. Check resistance between dropping resistor terminals 1 and 2.
CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.Resistance: 0.2 - 5.0Ω [at 25°C (77°F)]
SEC918C
Resistance: Approximately 0.9Ω [at 20°C (68°F)]
PBIB0100E
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EC-1402
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FUEL PUMP
Revision: 2007 April2007 M35/M45
3. Check resistance between condenser terminals 1 and 2.
Removal and InstallationNBS005Q6
FUEL PUMP
Refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" . Resistance: Above 1 MΩ [at 25°C (77°F)]
PBIB0794E
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ICC BRAKE SWITCH
EC-1403
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ICC BRAKE SWITCHPFP:25320
Component DescriptionNBS005QE
When the brake pedal is depressed, ICC brake switch (2) is turned
OFF and stop lamp switch (1) is turned ON. ECM detects the state of
the brake pedal by this input of two kinds (ON/OFF signal).
Refer to ACS-6, "
DESCRIPTION" for the ICC function.
CONSULT-II Reference Value in Data Monitor ModeNBS005QF
Specification data are reference values.
PBIB2705E
MONITOR ITEM CONDITION SPECIFICATION
BRAKE SW1
(ICC brake switch)
Ignition switch: ONBrake pedal: Fully released ON
Brake pedal: Slightly depressed OFF
BRAKE SW2
(Stop lamp switch)
Ignition switch: ONBrake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
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EC-1404
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ICC BRAKE SWITCH
Revision: 2007 April2007 M35/M45
Wiring DiagramNBS005QG
TBWT1069E
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![INFINITI M35 2007 Factory Service Manual ICC BRAKE SWITCH
EC-1405
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Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not INFINITI M35 2007 Factory Service Manual ICC BRAKE SWITCH
EC-1405
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Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not](/manual-img/42/57024/w960_57024-2933.png)
ICC BRAKE SWITCH
EC-1405
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Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS005QH
1. CHECK OVERALL FUNCTION-I
With CONSULT-II
1. Turn ignition switch ON.
2. Select “BRAKE SW1” in “DATA MONITOR” mode with CON-
SULT-II.
3. Check “BRAKE SW1” indication under the following conditions.
Without CONSULT-II
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 108 and ground under the
following conditions.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
101 V/R Stop lamp switch[Ignition switch: OFF]
Brake pedal: Fully releasedApproximately 0V
[Ignition switch: OFF]
Brake pedal: Slightly depressedBATTERY VOLTAGE
(11 - 14V)
108 BR ICC brake switch[Ignition switch: ON]
Brake pedal: Slightly depressedApproximately 0V
[Ignition switch: ON]
Brake pedal: Fully releasedBATTERY VOLTAGE
(11 - 14V)
CONDITION INDICATION
Brake pedal: Slightly depressed OFF
Brake pedal: Fully released ON
SEC011D
CONDITION VOLTAGE
Brake pedal: Slightly depressed Approximately 0V
Brake pedal: Fully released Battery voltage
MBIB0061E
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EC-1406
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ICC BRAKE SWITCH
Revision: 2007 April2007 M35/M45
2. CHECK OVERALL FUNCTION-II
With CONSULT-II
Check “BRAKE SW2” indication in “DATA MONITOR” mode.
Without CONSULT-II
Check voltage between ECM terminal 101 and ground under the fol-
lowing conditions.
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
3. CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ICC brake switch (2) harness connector.
–Stop lamp switch (1)
3. Turn ignition switch ON.
4. Check voltage between ICC brake switch terminal 1 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
CONDITION INDICATION
Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
SEC013D
CONDITION VOLTAGE
Brake pedal: Fully released Approximately 0V
Brake pedal: Slightly depressed Battery voltage
PBIB1537E
PBIB2705E
Voltage: Battery voltage
PBIB0857E
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![INFINITI M35 2007 Factory Service Manual ICC BRAKE SWITCH
EC-1407
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4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E102
10A fuse
Harness for INFINITI M35 2007 Factory Service Manual ICC BRAKE SWITCH
EC-1407
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4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E102
10A fuse
Harness for](/manual-img/42/57024/w960_57024-2935.png)
ICC BRAKE SWITCH
EC-1407
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4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E102
10A fuse
Harness for open or short between ICC brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ICC brake switch terminal 2 and ECM terminal 108.
Refer Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E108, M15
Harness for open or short between ICC brake switch and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK ICC BRAKE SWITCH
Refer to EC-1410, "
Component Inspection" .
OK or NG
OK >> GO TO 15.
NG >> Replace ICC brake switch.
8. CHECK DTC WITH ICC SENSOR INTEGRATED UNIT
Refer to ACS-40, "
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS" .
OK or NG
OK >> GO TO 9.
NG >> Repair or replace.Continuity should exist.