2005 INFINITI FX35 diagram

EC-1190
[VK45DE]
DTC P1146, P1166 HO2S2
Revision: 2005 July 2005 FX
Wiring DiagramABS007S1
BANK 1
TBWM0230E

DTC P1146, P1166 HO2S2 EC-1195
[VK45DE]
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EC
Revision: 2005 July 2005 FX
3. CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between HO2S2 terminal 4 and ECM terminal 78. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal and HO2S2 terminal as follows. Refer to Wiring Diagram.
2. Check harness continuity between the following terminals and ground. Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist.
PBIB1534E
DTC
Te r m i n a l s
Bank
ECM Sensor
P1146 55 1 1
P1166 74 1 2
Continuity should exist.
DTC Te r m i n a l s
Bank
ECM Sensor
P1146 55 1 1
P1166 74 1 2
Continuity should not exist.

DTC P1147, P1167 HO2S2 EC-1201
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EC
Revision: 2005 July 2005 FX
Wiring DiagramABS007SA
BANK 1
TBWM0230E

EC-1206
[VK45DE]
DTC P1147, P1167 HO2S2
Revision: 2005 July 2005 FX
3. CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between HO2S2 terminal 4 and ECM terminal 78. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HO2S2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal and HO2S2 terminal as follows. Refer to Wiring Diagram.
2. Check harness continuity between the following terminals and ground. Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist.
PBIB1534E
DTC
Terminals
Bank
ECM Sensor
P1147 55 1 1
P1167 74 1 2
Continuity should exist.
DTC Terminals
Bank
ECM Sensor
P1147 55 1 1
P1167 74 1 2
Continuity should not exist.

DTC P1217 ENGINE OVER TEMPERATURE EC-1217
[VK45DE]
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EC
Revision: 2005 July 2005 FX
Wiring DiagramABS007SU
TBWM0254E

EC-1222
[VK45DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2005 July 2005 FX
3. CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT
1. Disconnect IPDM E/R harness connector E5.
2. Disconnect cooling fan motor harness connector.
3. Check harness continuity between cooling fan motor terminal 2 and IPDM E/R terminal 8.
Refer to wiring diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK COOLING FAN MOTOR GROUND CIRCUIT FOR OPEN OR SHORT
1. Check harness continuity between the following; cooling fan motor terminal 3 and ground,
cooling fan motor terminal 4 and ground.
Refer to wiring diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to power in harness or connectors.
5. CHECK COOLING FAN MOTOR
Refer to EC-1224, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace cooling fan motor.
6. CHECK INTERMITTENT INCIDENT
Perform EC-854, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-
ULE ENGINE ROOM)" .
NG >> Repair or replace harness connectors. Continuity should exist.
PBIB1493E
Continuity should exist.

DTC P1217 ENGINE OVER TEMPERATURE EC-1223
[VK45DE]
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Revision: 2005 July 2005 FX
PROCEDURE B
1. CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT
1. Disconnect IPDM E/R harness connector E6.
2. Disconnect cooling fan motor harness connector.
3. Check harness continuity between cooling fan motor terminal 1 and IPDM E/R terminal 11.
Refer to wiring diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
2. CHECK COOLING FAN MOTOR
Refer to EC-1224, "
Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Replace cooling fan motor.
3. CHECK INTERMITTENT INCIDENT
Perform EC-854, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-
ULE ENGINE ROOM)" .
NG >> Repair or replace harness connectors.
Main 13 Causes of OverheatingABS007SW
Continuity should exist.
PBIB1493E
Engine Step Inspection item Equipment Standard Reference page
OFF 1

Blocked radiator

Blocked condenser

Blocked radiator grille

Blocked bumper

Visual No blocking —
2

Coolant mixture
Coolant tester 50 - 50% coolant mixture MA-13
3
Coolant level
Visual Coolant up to MAX level
in reservoir tank and radi-
ator filler neck CO-37
4
Radiator cap
Pressure tester 59 - 98 kPa
(0.6 - 1.0 kg/cm2 , 9 - 14
psi) (Limit) CO-43
ON*25
Coolant leaks
Visual No leaks
CO-37
ON*26
Thermostat
Touch the upper and
lower radiator hoses Both hoses should be hot
CO-53
ON*17
Cooling fan
CONSULT-II Operating See trouble diagnosis for
DTC P1217 ( EC-1213
).
OFF 8

Combustion gas leak
Color checker chemical
tester 4 Gas analyzer Negative —

EC-1230
[VK45DE]
DTC P1229 SENSOR POWER SUPPLY
Revision: 2005 July 2005 FX
Wiring DiagramABS007TH
TBWM0847E