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Does anyone know/have the schematics for 2004Dodge Ram 1500 5.7L 4x4:O2 sensor upstream wiring Female connector came off main wiring harness O2 sensor has male end with 4 wires are not same color

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How do I test the female end of 3 wire O2 sensor that o2 sensor plugs into? It is the one that comes from the battery to plug located on end of O2 sensor


with the O2 connected on a 3 wire sensor you should have a ground a battery supply and a ecm voltage of 4.5.with it running the sensor voltage(4.5) should fluctuate above and below the 4.5 volts when its in closed loop. if you don`t have one or any of these voltages then you will need to check from the connector back to where the voltages/ground is supplied, which is the ecm.

Nov 29, 2013 | Cars & Trucks

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What does a o2 sensor look like


Heated Oxygen Sensor

Print


Removal & Installation

3.5L

WARNING When disconnecting the sensor electrical connector, do not pull directly on wire going into sensor.

  1. Disconnect the negative battery cable.
  2. Disconnect the heated oxygen sensor electrical connector.
  3. Use a socket such as a crowfoot wrench to remove oxygen sensor.

To Install:

NOTE When replacing an O2 Sensor, the PCM RAM memory must be cleared, either by disconnecting the PCM C-1 connector or momentarily disconnecting the Battery negative terminal. The NGC learns the characteristics of each O2 heater element and these old values should be cleared when installing a new O2 sensor. The customer may experience driveability issues if this is not performed.
  1. After removing the sensor, the threads must be cleaned with an 18 mm X 1.5 + 6E tap. If reusing the original sensor, coat the sensor threads with an anti-seize compound such as Loctite 771- 64 or equivalent. New sensors have compound on the threads and do not require an additional coating. Tighten the sensor to 28 Nm (20 ft. lbs.) torque.
  2. Connect the heated oxygen sensor electrical connector.
  3. Install the wiring clip to the heat shield.
  4. Connect the negative battery cable.

    0996b43f80202384.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig.


3.8L Downstream Sensor

WARNING When disconnecting the sensor electrical connector, do not pull directly on wire going into sensor.
  1. Disconnect negative battery cable.
  2. Raise and support vehicle.
  3. Disconnect the electrical connector.
  4. Use a socket such as a crowfoot wrench to remove oxygen sensor.

3.8L Upstream & Downstream Sensors

NOTE When replacing an O2 Sensor, the PCM RAM memory must be cleared, either by disconnecting the PCM C-1 connector or momentarily disconnecting the Battery negative terminal. The NGC learns the characteristics of each O2 heater element and these old values should be cleared when installing a new O2 sensor. The customer may experience driveability issues if this is not performed.
  1. After removing the sensor, the threads must be cleaned with an 18 mm X 1.5 + 6E tap. If reusing the original sensor, coat the sensor threads with an anti-seize compound such as Loctite 771- 64 or equivalent. New sensors have compound on the threads and do not require an additional coating. Tighten the sensor to 28 Nm (20 ft. lbs.) torque.
  2. Connect the heated oxygen sensor electrical connector.
  3. Connect the negative battery cable.

3.8L Upstream Sensor

WARNING When disconnecting the sensor electrical connector, do not pull directly on wire going into sensor.
  1. Disconnect negative battery cable.
  2. Disconnect the upper O2 sensor connector.
  3. Use a socket such as a crowfoot wrench to remove oxygen sensor.

    0996b43f80202385.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig.


    0996b43f80202386.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig.


To Install:


Testing


NOTE Allow the O2 Sensor to cool down before conducting the test. The O2 Sensor voltage should stabilize at 5.0 volts. Raising the hood may help in reducing under hood temps quicker.

  1. Turn the ignition on, engine not running. With the scan tool, actuate the O2 Heater Test.
  2. With the scan tool, monitor O2 Sensor voltage for at least 2 minutes. Does the O2 Sensor voltage stay above 4.5 volts- If so, sensor is normal.
  3. If voltage does not stay above 4.5v as indicated, check wiring and connectors. Check O2 sensor for contamination.
  4. If wiring from the O2 sensor is damaged, DO NOT repair it; replace the O2 sensor.
  5. Turn the ignition off. Allow the O2 sensor to cool down to room temperature.
  6. Disconnect the O2 Sensor harness connector.
  7. Measure the resistance across the O2 Sensor Heater element component side. Resistance for either O2 Sensor should be 2.1-2.7 ohms.
  8. If the O2 Sensor is not within range, turn the ignition off.
  9. Disconnect the O2 Sensor harness connector. Turn the ignition to ON; engine not running.
  10. With the proper scan tool, actuate the O2 Heater Test.
  11. Using a 12-volt test light connected to ground, probe the O2 Heater Control circuit in the O2 Sensor harness connector.
  12. If the test light illuminates brightly and flashes on and off, replace the O2 Sensor.
  13. Confirm the repair with the appropriate Verification Test.
  14. Turn the ignition off.
  15. Disconnect the O2 Sensor harness connector.
  16. Disconnect the PCM harness connector.
  17. Measure the resistance between ground and the O2 Heater Control circuit in the O2 Sensor harness connector.
  18. Is the resistance below 5.0 ohms- If yes, repair the short to ground in the O2 Sensor Heater Control circuit. If resistance is okay, go to step 20.
  19. Confirm the repair.
  20. If resistance was okay when measured in step 17, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
  21. If the resistance is still not within specified range, replace and program the Powertrain Control Module in accordance with the service information.
  22. Confirm the repair.

Jul 13, 2012 | 2004 Chrysler Pacifica

1 Answer

I ifound my O2 sensor with 5 inches of lead cut and frayed( 4 conds) cannot locate where this now cut cable ran to. Like a female connector or maybe even a cable w 4 conds in it dangling maybe the...


Likely the wires tore out of the connector. That should be somewhere in front of the sensor, attached to the floor board. New sensors are sold with and without the connector attached. Best to buy one pre-built to avoid getting the wires in the wrong positions (only a few $ more than "universal" type). When installing, route the wiring away from the exhaust and make sure it does not hang down.
Once installed, check the fuses in the power distribution center and make sure none are blown. (can happen if one of the wires shorted when they pulled out).

May 26, 2011 | 1993 Jeep Grand Cherokee

1 Answer

Westinghouse LF708C fault code SE. not spinning. what needs to be fixed?


SE refers to a sensor error, remedies include checking all connections plugs: § The connector (5pin, male, white) in the Wire Harness is not connected to the connector (5 pin, female) of Hall Sensor in the MOTOR. ?_? reconnect or repair the contact in the connector The electric contact between the connectors (5 pin, male in the Wire Harness and 5 pin female in the Hall Sensor) is bad or unstable. ?_ Reconnect or repair the contact in the connector ? The connector (6 pin, male, natural) in the Wire Harness is not connected to the connector (6 pin, female, natural) of PWB ASSY(Main) or the electric contact of connectors is bad/unstable. ?_ Reconnect or repair the contact in the connector ? The electric contact between the connectors ¡a6 pin, male in the Wire Harness and 6 pin female in the controller(Main)¡bis bad or unstable. ?_ Reconnect or repair the contact in the connector ? The Wire Harness between Hall Sensor in the MOTOR and PWB ASSY(Main) is cut(open circuited). ?_ Repair/replace the damaged WIRE HARNESS ? The Hall Sensor is out of order/defective. ?_ Replace the Motor ? The controller(Main) is out of order/defective. ?_ Replace the PWB ASSY(Main)

Jan 22, 2010 | Westinghouse Washing Machines

1 Answer

I have a 1998 chevy malibu what wire for the o2 sensor is the signal wire and theres four to choose from


On the front O2 Sensor, the signal wire s Purple. On the rear O2 Sensor, the signal wire is Purple and White. (You will probably have to look at the wire colors on the main harness side of the O2 Sensor connector, not on the sensor itself.)

Nov 19, 2009 | 1998 Chevrolet Malibu

1 Answer

2000 sk8 with trouble code 1647


The DTC code P1647 indicates that there is a issue with the O2 sensor bank 2 upstream. What caused the code could be a heater failure to the O2, Sensing circuit failure (Short circuit to ground, short circuit to hight voltage, or open circuit). Last would be ECM failure but that's rare. The Bank 2 is the radiator side, check the wire harness to the O2, The harness to both upstream and downstream O2 sensor are connected to a bracket in front and below the battery. Look for corrosion and follow the harness for any breaks that would cause a short in the system. Also check the fuse to the O2 sensor heaters, not sure which fuse it is but check all the fuses in the fuse box under the hood. If everything is ok then most likely the O2 sensor needs to be replaced. Good luck and hope this helps.

Jun 12, 2009 | 1999 Jaguar XK8

1 Answer

Which O2 sensor for 2005 Dodge Ram Quad 5.7 (Hemi); the parts stores asked if I needed the 2,3 or 4 wire. My Vin starts with 1D7HA18DXXXXXXXXX


Which O2 sensor do you need, you have 4 O2 sensors in your Dodge ram. Is it the O2 sensor upstream or the down stream. I believe the down stream will have the 4 wire lead and the up stream will have the 3 wire leads. If you need the down stream O2 sensor which is the common one to go bad, you can look at the wire harness clip which is only 6 inches a way form the sensor after the catalytic converter. Good luck and hope this helps.

Jun 03, 2009 | 2005 Dodge Ram 1500

1 Answer

O2 Sensor


Well, Bank 1 is the passenger side of the vehicle. Are you replacing upstream or downstream 02 sensor?

The upstream is in the exhaust manifold. The downstream is further down in the exhaust pipe. Upstream would be designated by the code HO2S1- B1 and the downstream would be indicated HO2S2-B1.

In either case, you basically unplug the wiring connector, use a 7/8 wrench (or an O2 sensor socket which has a groove cut in the side to allow the wiring to not be pinched) and loosen the sensor and install the new one (with anti-seize on the threads) and plug the connector in.

The upstream sensor is pretty easy- the downstream can be a little more difficult, but is not too bad.

Hope this is helpful!!

Nissan Scope Technician- 10+ years experience in Nissan dealership.

Oct 28, 2008 | 2002 Nissan Xterra

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