Page 2669 of 4731
![INFINITI FX35 2005 Service Manual EC-1276
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DTC P1572 ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connecto INFINITI FX35 2005 Service Manual EC-1276
[VK45DE]
DTC P1572 ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connecto](/manual-img/42/57020/w960_57020-2668.png)
EC-1276
[VK45DE]
DTC P1572 ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check voltage between ASCD brake switch terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2. Refer to 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 E211, M41
Harness for open or short between ECM and ASCD brake switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2558E
Voltage: Battery voltage
PBIB0857E
Continuity should exist.
Page 2670 of 4731
![INFINITI FX35 2005 Service Manual DTC P1572 ASCD BRAKE SWITCH EC-1277
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Revision: 2005 July 2005 FX
7. CHECK ASCD BRAKE SWITCH
Refer to EC-1278, "
Component Inspection"
OK or NG
OK INFINITI FX35 2005 Service Manual DTC P1572 ASCD BRAKE SWITCH EC-1277
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7. CHECK ASCD BRAKE SWITCH
Refer to EC-1278, "
Component Inspection"
OK or NG
OK](/manual-img/42/57020/w960_57020-2669.png)
DTC P1572 ASCD BRAKE SWITCH EC-1277
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7. CHECK ASCD BRAKE SWITCH
Refer to EC-1278, "
Component Inspection"
OK or NG
OK >> GO TO 13.
NG >> Replace ASCD brake switch.
8. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check voltage between stop lamp switch terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
10. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
PBIB2558E
Voltage: Battery voltage
PBIB1184E
Continuity should exist.
Page 2693 of 4731
![INFINITI FX35 2005 Service Manual EC-1300
[VK45DE]
DTC P1805 BRAKE SWITCH
Revision: 2005 July 2005 FX
3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between s INFINITI FX35 2005 Service Manual EC-1300
[VK45DE]
DTC P1805 BRAKE SWITCH
Revision: 2005 July 2005 FX
3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between s](/manual-img/42/57020/w960_57020-2692.png)
EC-1300
[VK45DE]
DTC P1805 BRAKE SWITCH
Revision: 2005 July 2005 FX
3. DETECT MALFUNCTIONING PART
Check the following.
10A fuse
Fuse block (J/B) connector E201
Harness for open and short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Disconnect stop lamp switch harness connector.
3. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK STOP LAMP SWITCH
Refer to EC-1301, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace stop lamp switch.
7. CHECK INTERMITTENT INCIDENT
Refer to EC-854, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Continuity should exist.
Page 2730 of 4731
![INFINITI FX35 2005 Service Manual VARIABLE INDUCTION AIR CONTROL SYSTEM (VIAS) EC-1337
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Revision: 2005 July 2005 FX
7. DETECT MALFUNCTIONING PART
Check the following.
Harness connector INFINITI FX35 2005 Service Manual VARIABLE INDUCTION AIR CONTROL SYSTEM (VIAS) EC-1337
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Revision: 2005 July 2005 FX
7. DETECT MALFUNCTIONING PART
Check the following.
Harness connector](/manual-img/42/57020/w960_57020-2729.png)
VARIABLE INDUCTION AIR CONTROL SYSTEM (VIAS) EC-1337
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Revision: 2005 July 2005 FX
7. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness connectors M82, F102
IPDM E/R connector E7
10A fuse
Harness continuity between IPDM E/R and VIAS control solenoid valve
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK VIAS CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 29 and VIAS control solenoid valve terminal 2. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK VIAS CONTROL SOLENOID VALVE
Refer to EC-1337, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace VIAS control solenoid valve.
10. CHECK INTERMITTENT INCIDENT
Refer to EC-854, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component InspectionABS007WO
VIAS CONTROL SOLENOID VALVE
With CONSULT-II
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform “VIAS SOL VALVE” in “ACTIVE TEST” mode.
4. Check air passage continuity and operation delay time under the following conditions.
Operation takes less than 1 second. Continuity should exist.
Condition
VIAS SOL VALVE Air passage continuity
between A and B Air passage continuity
between A and C
ON Yes No
OFF No Yes
PBIB0177E
Page 2755 of 4731
![INFINITI FX35 2005 Service Manual EC-1362
[VK45DE]
FUEL PUMP CIRCUIT
Revision: 2005 July 2005 FX
6. CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse.
3. Check 15A fuse.
OK or NG
OK >> GO TO 7.
NG >> Replace fuse. INFINITI FX35 2005 Service Manual EC-1362
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FUEL PUMP CIRCUIT
Revision: 2005 July 2005 FX
6. CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse.
3. Check 15A fuse.
OK or NG
OK >> GO TO 7.
NG >> Replace fuse.](/manual-img/42/57020/w960_57020-2754.png)
EC-1362
[VK45DE]
FUEL PUMP CIRCUIT
Revision: 2005 July 2005 FX
6. CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse.
3. Check 15A fuse.
OK or NG
OK >> GO TO 7.
NG >> Replace fuse.
7. CHECK FUEL PUMP POWER SUPPLY CIRCUIT-IV
1. Disconnect IPDM E/R harness connector E8.
2. Check harness continuity between IPDM E/R terminal 39 and “fuel level sensor unit and fuel pump” termi- nal 1.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 11.
NG >> GO TO 8.
8. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E206, B6
Harness for open or short between IPDM E/R and “fuel level sensor unit and fuel pump”
>> Repair harness or connectors.
9. CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between “fuel level sensor unit and fuel pump” terminal 3 and ground. Refer to Wiring Diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 10.
NG >> Repair open circuit or short to power in harness or connectors.
10. CHECK FUEL PUMP
Refer to EC-1363, "
Component Inspection" .
OK or NG
OK >> GO TO 11.
NG >> Replace fuel pump.
11 . CHECK INTERMITTENT INCIDENT
Refer to EC-854, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R.
NG >> Repair or replace harness or connectors. Continuity should exist.
Continuity should exist.
Page 2768 of 4731
![INFINITI FX35 2005 Service Manual ICC BRAKE SWITCH EC-1375
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Revision: 2005 July 2005 FX
6. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector M201
10A fuse
Ha INFINITI FX35 2005 Service Manual ICC BRAKE SWITCH EC-1375
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Revision: 2005 July 2005 FX
6. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector M201
10A fuse
Ha](/manual-img/42/57020/w960_57020-2767.png)
ICC BRAKE SWITCH EC-1375
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Revision: 2005 July 2005 FX
6. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector M201
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.
7. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Check harness continuity between ICC brake hold relay terminal 3 and ICC brake switch terminal 2. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK ICC BRAKE SWITCH
Refer to EC-1377, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace ICC brake switch.
9. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ICC brake hold relay terminal 4 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 11.
NG >> GO TO 10.
10. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ICC brake hold relay and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 . CHECK ICC BRAKE HOLD RELAY
Refer to EC-1377, "
Component Inspection" .
OK >> GO TO 17.
NG >> Replace ICC brake fold relay. Continuity should exist.
Continuity should exist.
Page 2769 of 4731
![INFINITI FX35 2005 Service Manual EC-1376
[VK45DE]
ICC BRAKE SWITCH
Revision: 2005 July 2005 FX
12. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check INFINITI FX35 2005 Service Manual EC-1376
[VK45DE]
ICC BRAKE SWITCH
Revision: 2005 July 2005 FX
12. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check](/manual-img/42/57020/w960_57020-2768.png)
EC-1376
[VK45DE]
ICC BRAKE SWITCH
Revision: 2005 July 2005 FX
12. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector.
3. Check voltage between stop lamp switch terminal 1 and ground with CONSULT -II or tester.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between stop lamp switch and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2. Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 16.
NG >> GO TO 15.
15. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and stop lamp switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2558E
Voltage: Battery voltage
PBIB1184E
Continuity should exist.
Page 2775 of 4731
![INFINITI FX35 2005 Service Manual EC-1382
[VK45DE]
ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn INFINITI FX35 2005 Service Manual EC-1382
[VK45DE]
ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn](/manual-img/42/57020/w960_57020-2774.png)
EC-1382
[VK45DE]
ASCD BRAKE SWITCH
Revision: 2005 July 2005 FX
3. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ASCD brake switch harness connector.
3. Turn ignition switch ON.
4. Check voltage between ASCD brake switch terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector E201
10A fuse
Harness for open or short between ASCD brake switch and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 108 and ASCD brake switch terminal 2. Refer to Wiring Diagram.
4. Also check harness for short to ground or short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open or short between ECM and ASCD brake switch
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2558E
Voltage: Battery voltage
PBIB0857E
Continuity should exist.