sensor INFINITI QX56 2010 Factory Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2010, Model line: QX56, Model: INFINITI QX56 2010Pages: 4210, PDF Size: 81.91 MB
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![INFINITI QX56 2010 Factory Service Manual EC-90
< COMPONENT DIAGNOSIS >[VK56DE]
P0011, P0021 IVT CONTROL
Refer to EC-85, "Ground Inspection".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.
3.CHECK INTAKE VALVE TIMING CONT](/img/42/57032/w960_57032-1442.png "INFINITI QX56 2010 Factory Service Manual EC-90
< COMPONENT DIAGNOSIS >[VK56DE]
P0011, P0021 IVT CONTROL
Refer to EC-85, \"Ground Inspection\".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.
3.CHECK INTAKE VALVE TIMING CONT")
EC-90
< COMPONENT DIAGNOSIS >[VK56DE]
P0011, P0021 IVT CONTROL
Refer to EC-85, "Ground Inspection".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.
3.CHECK INTAKE VALVE TIMING CONTROL PO SITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect intake valve timing control position sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between intake valve timing control position sen- sor terminal 3 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• Harness for open or short between intake valve timing control position sensor and ECM
• Harness for open or short between intake valve timing control position sensor and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK INTAKE VALVE TIMING CONTROL POSI TION SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between intake valve timing control position sensor terminal 1 and ground.
Refer to Wiring Diagram.
BBIA0354E
1. Intake valve timing control position
sensor (bank 2) 2. Intake valve timing control solenoid
valve (bank 2) 3. Drive belt
4. Radiator hose 5. Intake valve timing control solenoid
valve (bank 1) 6. Intake valve timing control position
sensor (bank 1)
Voltage: Battery voltage
BBIA0771E
PBIB2613E
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual P0011, P0021 IVT CONTROLEC-91
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3. Also check harness for short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING](/img/42/57032/w960_57032-1443.png "INFINITI QX56 2010 Factory Service Manual P0011, P0021 IVT CONTROLEC-91
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3. Also check harness for short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING")
P0011, P0021 IVT CONTROLEC-91
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3. Also check harness for short to power.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• Harness for open or short between intake valve timing control position sensor and ground
>> Repair open circuit or short to power in harness or connectors.
7.CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN
AND SHORT1. Disconnect ECM harness connector.
2. Check harness continuity between the following; ECM terminal 72 and intake valve timing control position sensor (Bank 1) terminal 2 or
ECM terminal 53 and intake valve timing contro l position sensor (Bank 2) 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 INTAKE VALVE TIMING CONTROL POSITION SENSOR
Refer to EC-93, "
Component Inspection".
OK or NG
OK >> GO TO 9.
NG >> Replace malfunctioning intake valve timing control position sensor. Refer to EC-495
.
9.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Reconnect ECM harness connector.
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Turn ignition switch ON. Continuity should exist.
Continuity should exist.
1. Intake valve timing control position
sensor (bank 2) 2. Intake valve timing control solenoid
valve (bank 2) 3. Drive belt
4. Radiator hose 5. Intake valve timing control solenoid
valve (bank 1) 6. Intake valve timing control position
sensor (bank 1)
BBIA0771E
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual EC-92
< COMPONENT DIAGNOSIS >[VK56DE]
P0011, P0021 IVT CONTROL
4. Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-III or tester.
OK or NG
OK >> GO T](/img/42/57032/w960_57032-1444.png "INFINITI QX56 2010 Factory Service Manual EC-92
< COMPONENT DIAGNOSIS >[VK56DE]
P0011, P0021 IVT CONTROL
4. Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-III or tester.
OK or NG
OK >> GO T")
EC-92
< COMPONENT DIAGNOSIS >[VK56DE]
P0011, P0021 IVT CONTROL
4. Check voltage between intake valve timing control solenoid
valve terminal 2 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 11.
NG >> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• Harness for open or short between intake valv e timing control solenoid valve and IPDM E/R.
>> Repair open circuit or short to ground or short to power in harness or connectors.
11 .CHECK INTAKE VALVE TIMING 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 the following; ECM terminal 10 and intake valve timing control solenoid valve (Bank 1) terminal 1 or
ECM terminal 11 and intake valve timing control solenoid valve (Bank 2) terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 12.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
12.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EC-93, "
Component Inspection".
OK or NG
OK >> GO TO 13.
NG >> Replace malfunctioning intake valve timing control solenoid valve. Refer to EC-494
.
13.CHECK CRANKSHAFT POSI TION SENSOR (POS)
Refer to EC-203, "
Component Inspection".
OK or NG
OK >> GO TO 14.
NG >> Replace crankshaft position sensor (POS).
14.CHECK CAMSHAFT POSITI ON SENSOR (PHASE)
Refer to EC-207, "
Component Inspection".
OK or NG
OK >> GO TO 15.
NG >> Replace malfunctioning camshaft position sensor (PHASE). Refer to EC-495
.
15.CHECK CAMSHAFT SPROCKET
Check accumulation of debris to the signal pick -up portion of the camshaft sprocket. Refer to EM-62, "
Inspec-
tion after Installation".
OK or NG
OK >> GO TO 16. Voltage: Battery voltage
PBIB0351E
Continuity should exist.
Revision: April 20092010 QX56
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NG >> Remove debris and clean the signal pick-up cutout of camshaft sprocket.
16.CHECK TIMING CHAIN INSTA](/img/42/57032/w960_57032-1445.png "INFINITI QX56 2010 Factory Service Manual P0011, P0021 IVT CONTROLEC-93
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NG >> Remove debris and clean the signal pick-up cutout of camshaft sprocket.
16.CHECK TIMING CHAIN INSTA")
P0011, P0021 IVT CONTROLEC-93
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NG >> Remove debris and clean the signal pick-up cutout of camshaft sprocket.
16.CHECK TIMING CHAIN INSTALLATION
Check service records for any recent repairs that may cause timing chain misaligned.
Are there any service records that may cause timing chain misaligned?
Ye s o r N o
Yes >> Check timing chain installation. Refer to EM-45, "Removal and Installation".
No >> GO TO 17.
17.CHECK LUBRICATION CIRCUIT
Refer to EM-62, "
Inspection after Installation".
OK or NG
OK >> GO TO 18.
NG >> Clean lubrication line.
18.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
How to Check Terminal" and GI-38, "Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000005149094
INTAKE VALVE TIMING CONTROL POSITION SENSOR
1. Disconnect intake valve timing control position sensor harness connector.
2. Loosen the fixing bolt of the sensor.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown below.
6. If NG, replace intake valve timing control position sensor. Refer
to EC-495
.
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
1. Disconnect intake valve timing control solenoid valve harness connector.
SEF362Z
Terminal No. (Polarity) Resistance Ω [at 25°C (77 °F)]
3 (+) - 1 (-) Except 0 or ∞
2 (+) - 1 (-)
3 (+) - 2 (-)
JMBIA0600ZZ
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-95
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P0031, P0032, P0051, P0052
A/F SENSOR 1 HEATER
DescriptionINFOID:0000000005149095](/img/42/57032/w960_57032-1447.png "INFINITI QX56 2010 Factory Service Manual P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-95
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P0031, P0032, P0051, P0052
A/F SENSOR 1 HEATER
DescriptionINFOID:0000000005149095")
P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-95
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P0031, P0032, P0051, P0052
A/F SENSOR 1 HEATER
DescriptionINFOID:0000000005149095
SYSTEM DESCRIPTION
The ECM performs ON/OFF duty control of the A/F sensor 1 heater corresponding to the engine operating
condition to keep the temperature of A/F sensor 1 element at the specified range.
On Board Diagnosis LogicINFOID:0000000005149096
DTC Confirmation ProcedureINFOID:0000000005149097
NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next step.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confi rm that battery voltage is between 10.5V and 16V at
idle.
1. Start engine and let it idle for at least 10 seconds.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-95, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005149098
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Sensor Input Signal to ECM ECM functionActuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS) Engine speed
Air fuel ratio (A/F) sensor 1
heater controlAir fuel ratio (A/F) sensor 1
heater
Mass air flow sensor Amount of intake air
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0031
0031
(Bank 1) Air fuel ratio (A/F) sensor
1 heater control circuit low The current amperage in the air fuel ratio (A/F) sen-
sor 1 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the air fuel ratio (A/F) sensor 1 heater.) • Harness or connectors
(The A/F sensor 1 heater circuit is
open or shorted.)
• A/F sensor 1 heater
P0051
0051
(Bank 2)
P0032
0032
(Bank 1)
Air fuel ratio (A/F) sensor
1 heater control circuit
high The current amperage in the air fuel ratio (A/F) sen-
sor 1 heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the air fuel ratio (A/F) sensor 1 heater.) • Harness or connectors
(The A/F sensor 1 heater circuit is
shorted.)
• A/F sensor 1 heater
P0052
0052
(Bank 2)
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual EC-96
< COMPONENT DIAGNOSIS >[VK56DE]
P0031, P0032, P0051, P00
52 A/F SENSOR 1 HEATER
Refer to EC-85, "Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK A](/img/42/57032/w960_57032-1448.png "INFINITI QX56 2010 Factory Service Manual EC-96
< COMPONENT DIAGNOSIS >[VK56DE]
P0031, P0032, P0051, P00
52 A/F SENSOR 1 HEATER
Refer to EC-85, \"Ground Inspection\".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK A")
EC-96
< COMPONENT DIAGNOSIS >[VK56DE]
P0031, P0032, P0051, P00
52 A/F SENSOR 1 HEATER
Refer to EC-85, "Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check voltage between A/F sensor 1 terminal 4 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E5, F14
• IPDM E/R harness connector E119
• 15 A fuse (No. 54)
• Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
4.CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 2 (bank 1) or 24, 43 (bank 2) and A/F sensor 1 terminal
3.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
BBIA0354E
Voltage: Battery voltage
BBIA0376E
PBIB3308E
Continuity should exist.
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-97
< COMPONENT DIAGNOSIS > [VK56DE]
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OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to p](/img/42/57032/w960_57032-1449.png "INFINITI QX56 2010 Factory Service Manual P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-97
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OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to p")
P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-97
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OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK A/F SENSOR 1 HEATER
Refer to EC-97, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace malfunctioning air fuel ratio (A/F) sensor 1.
6.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
How to Check Terminal" and GI-38, "Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000005149099
AIR FUEL RATIO (A/F) SENSOR 1 HEATER
1. Check resistance between A/F sensor 1 terminals as follows.
2. If NG, replace air fuel ratio (A/F) sensor 1.
CAUTION:
• Discard any A/F sensor which has been dropped from a
height of more than 0.5 m ( 19.7 in) onto a hard surface such
as a concrete floor; use a new one.
• Before installing new A/F sensor, clean exhaust system threads using Heated Oxygen Sensor Thread Cleaner tool J-
43897-18 or J-43897-12 and approved anti-seize lubricant.
Terminal No. Resistance
3 and 4 1.98 - 2.66 Ω [at 25°C (77 °F)]
3 and 1, 2 ∞ Ω
(Continuity should not exist)
4 and 1, 2
PBIB3309E
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual EC-98
< COMPONENT DIAGNOSIS >[VK56DE]
P0037, P0038, P0057,
P0058 HO2S2 HEATER
P0037, P0038, P0057, P0058 HO2S2 HEATER
DescriptionINFOID:0000000005149100
SYSTEM DESCRIPTION
The ECM performs ON/OFF con](/img/42/57032/w960_57032-1450.png "INFINITI QX56 2010 Factory Service Manual EC-98
< COMPONENT DIAGNOSIS >[VK56DE]
P0037, P0038, P0057,
P0058 HO2S2 HEATER
P0037, P0038, P0057, P0058 HO2S2 HEATER
DescriptionINFOID:0000000005149100
SYSTEM DESCRIPTION
The ECM performs ON/OFF con")
EC-98
< COMPONENT DIAGNOSIS >[VK56DE]
P0037, P0038, P0057,
P0058 HO2S2 HEATER
P0037, P0038, P0057, P0058 HO2S2 HEATER
DescriptionINFOID:0000000005149100
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxy gen sensor 2 heater corresponding to the engine speed,
amount of intake air and engine coolant temperature.
OPERATION
On Board Diagn osis LogicINFOID:0000000005149101
DTC Confirmation ProcedureINFOID:0000000005149102
NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next step.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following pr ocedure, confirm that battery voltage is between 10.5V and 16V at
idle.
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start the engine and keep the engine speed between 3,500 rpm and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
Sensor Input signal to ECM ECM function Actuator
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS) Engine speed
Heated oxygen sensor 2
heater controlHeated oxygen sensor 2 heater
Engine coolant temperature sensor Engine coolant temperature
Mass air flow sensor Amount of intake air
Engine speed (rpm) Heated oxygen sensor 2 heater
Above 3,600 OFF
Below 3,600 rpm after the following conditions are met.
• Engine: After warming up
• Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at idle for 1 minute under no load ON
DTC No. Trouble diagnosis name
DTC detecting conditionPossible cause
P0037
0037
(Bank 1) Heated oxygen sensor 2
heater control circuit low The current amperage in the heated oxygen sen-
sor 2 heater circuit is out of the normal range.
(An excessively low voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.) • Harness or connectors
(The heated oxygen sensor 2 heater
circuit is open or shorted.)
• Heated oxygen sensor 2 heater
P0057
0057
(Bank 2)
P0038
0038
(Bank 1)
Heated oxygen sensor 2
heater control circuit high The current amperage in the heated oxygen sen-
sor 2 heater circuit is out of the normal range.
(An excessively high voltage signal is sent to ECM
through the heated oxygen sensor 2 heater.) • Harness or connectors
(The heated oxygen sensor 2 heater
circuit is shorted.)
• Heated oxygen sensor 2 heater
P0058
0058
(Bank 2)
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual P0037, P0038, P0057, P0058 HO2S2 HEATER
EC-99
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6. Check 1st trip DTC.
7. If 1st trip DTC is detected, go to
EC-99, "
Diagnosis Procedur](/img/42/57032/w960_57032-1451.png "INFINITI QX56 2010 Factory Service Manual P0037, P0038, P0057, P0058 HO2S2 HEATER
EC-99
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6. Check 1st trip DTC.
7. If 1st trip DTC is detected, go to
EC-99, \"
Diagnosis Procedur")
P0037, P0038, P0057, P0058 HO2S2 HEATER
EC-99
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6. Check 1st trip DTC.
7. If 1st trip DTC is detected, go to
EC-99, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005149103
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body. Refer to EC-85, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 2 harness connector.
2. Turn ignition switch ON.
3. Check voltage between HO2S2 terminal 3 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E5, F14
• IPDM E/R harness connector E119
• 15 A fuse (No. 54)
• Harness for open or short between heated oxygen sensor 2 and fuse
>> Repair harness or connectors.
4.CHECK HO2S2 HEATER OUTPUT SIGN AL CIRCUIT FOR OPEN AND SHORT
BBIA0354E
BBIA0435E
Voltage: Battery voltage
PBIB0112E
Revision: April 20092010 QX56
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![INFINITI QX56 2010 Factory Service Manual EC-100
< COMPONENT DIAGNOSIS >[VK56DE]
P0037, P0038, P0057,
P0058 HO2S2 HEATER
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal and H](/img/42/57032/w960_57032-1452.png "INFINITI QX56 2010 Factory Service Manual EC-100
< COMPONENT DIAGNOSIS >[VK56DE]
P0037, P0038, P0057,
P0058 HO2S2 HEATER
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal and H")
EC-100
< COMPONENT DIAGNOSIS >[VK56DE]
P0037, P0038, P0057,
P0058 HO2S2 HEATER
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal and HO2S2 terminal as follows.
Refer to Wiring Diagram.
4. Also check harness for short to ground and 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.
5.CHECK HEATED OXYGEN SENSOR 2 HEATER
Refer to EC-100, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace malfunctioning heated oxygen sensor 2.
6.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
How to Check Terminal" and GI-38, "Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000005149104
HEATED OXYGEN SENSOR 2 HEATER
1. Check resistance between HO2S2 terminals as follows.
2. If NG, replace heated oxygen sensor 2.
CAUTION:
• Discard any heated oxygen sensor which has been dropped
from a height of more than 0.5 m (19.7 in) onto a hard surface
such as a concrete floor; use a new one.
• Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner tool J-43897-18
or J-43897-12 and approved anti-seize lubricant.
DTC Te r m i n a l s
Bank
ECM Sensor
P0037, P0038 6 21
P0057, P0058 25 22
Continuity should exist.
Terminal No. Resistance
2 and 3 8 - 10 Ω [at 25 °C (77 °F)]
1 and 2, 3, 4 ∞ Ω
(Continuity should not exist)
4 and 1, 2, 3
SEF249Y
Revision: April 20092010 QX56