Question about 2002 Jeep Grand Cherokee

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Where is oxygen sensor fuse located on 2002 grand cherokee

Computer shows o2 sensor bank2 sensor1 or fuse bad. where is the fuse located

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6ya6ya
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Posted on Jan 02, 2017

ZJLimited
  • 17970 Answers

SOURCE: where are the o2 sensors located on a 2004 jeep

Grand Cherokee oxygen sensor locations for 4.0 and 4.7 engines...

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An O2 sensor is a galvanic battery that provides the PCM with a voltage signal (0-1 volt) inversely proportional to the amount of oxygen in the exhaust. In other words, if the oxygen content is low, the voltage output is high; if the oxygen content is high the output voltage is low. The PCM uses this information to adjust injector pulse-width to achieve the 14.7-to-1 air/fuel ratio necessary for proper engine operation and to control emissions.

The O2 sensor must have a source of oxygen from outside of the exhaust stream for comparison. Current O2 sensors receive their fresh oxygen (outside air) supply through the O2 sensor case housing.

Four wires (circuits) are used on each O2 sensor:
* 12-volt feed circuit for the sensor heating element
* Ground circuit for the heater element
* Low-noise sensor return circuit to the PCM
* Input circuit from the sensor back to the PCM to detect sensor operation


Hope helps (remember to rate and commene this)..

Posted on Feb 04, 2011

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  • 261 Answers

SOURCE: 1996 Jeep Cherokee. O2 sensor problem.

i would check with the dealer who changed the converter to check and see if the sensors were damaged while they replaced the converter or may be they have forgotten to hook it back up check before you throw away your good 02 sensr

Posted on Nov 12, 2008

468 Chevelle
  • 81 Answers

SOURCE: o2 circuit high voltage(bank1),where is this

driver side exhaust system, at the collector or alittle lower

Posted on Apr 05, 2009

  • 1 Answer

SOURCE: can't locate the cooling fan sensor or relay.

the radiator fan relay is located behind and slightly lower than the r/f headlamp.best way to get to this is by removing right side of front fascia out enough to get behind it. this will give you acsess to the relay.i work at a jeep dealer and have done this many times.

Posted on Apr 18, 2009

  • 34 Answers

SOURCE: 2001 jeep grand cherokee limited

no o2 couldnt do that it would have jump time you need to ****** your timing back to its time to get them ploblems fix then get a new timing belt dampner to keep it on track dont run anymore untill you get this fixed

Posted on Jan 16, 2010

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1 Answer

2005 jeep grand cherokee Po204 205 175 174 138 158. Runs rough. Whats wrong?


PO204,205 are injector circuit malfunction,PO174 is a system lean code, PO175 is system rich code, PO138 is heated oxygen sensor bank1 sensor 2 circuit high voltage, PO158 is heated oxygen sensor bank2 sensor 2 circuit high voltage. This is a repair for your mechanic. When they fix the injector and o2 circuits the rich lean codes will also be repaired. Continued driving will ruin your catalytic converter. Good luck

Jun 13, 2015 | 2005 Jeep Grand Cherokee

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Po171 and po174 oxygen sensors for 2002 Chevrolet Silverado 2500hd w/6.0 litre engine - truck has 12 - how do I find out codes?


your truck should only have 4 o2 sensors two upstream and two down stream. P0171=system too lean, P0174 I= bank2 sensor1

Feb 11, 2015 | 2002 Chevrolet Silverado 2500HD

2 Answers

O2 sensor1 bank2


follow exhaust pipe from engine and the o2 sensor behind the cat converter is your sensor looks like a spark plug mounted towards the top of exhaust with a wire on it

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1 Answer

How to fix a 2002 dodge durango with p0051,p0136,p0031 codes


All 3 of these Codes have to do with the O2 devices. Some are saying the heating elements are returning low signals. These elements are built inside the O2 sensors and are designed to make your vehicle get out of "rich" mode faster.

Bank2 sensor1, Bank1 sensor1, Bank1 sensor2. Check your connections and the wiring leading to these parts.

You may need to replace these O2 sensors if the wires are good.

Sep 15, 2012 | 2002 Dodge Durango

1 Answer

Where is the heat oxy sensor bank2 sensor1


had a 98 ford explorer with same problem. had 2 o2 sensors in the exhaust change both, if one is bad the other is right behind it. problem went away and didnt have same problem again.

Apr 14, 2012 | 1998 Ford Ranger SuperCab

1 Answer

I HAVE THIS CODE IN MY IZUZU RODEO 2003: P0155


this code is oxygen sensor heater circuit range/performance(bank2,sensor1)
the ECM detects the heated oxygen sensor internal resistance is not in specs for 6 seconds code sets
disconnect O2 sensor,switch ignition on engine not running and measure the voltage with a multi meter between O2 sensor reference signal circuit and low reference signal circiut(vehicle side of wiring) should read 350-550mV
possibly O2 sensor broken(faulty) replace

Feb 04, 2011 | 2003 Isuzu Rodeo

1 Answer

E-Check Light P0125 and pending p1153/p1155. Replaced ECT and codes reappear. Where is this Bank2 Sensor1 located on my 1998 toyota camry v-6 auto with air. P1155Code book described as AF sensor.


Air/Fuel Sensors are mounted upstream of the catalytic converter. They are located on the exhaust manifold side of the catalytic converter (pre-converter - Sensors 1). Oxygen Sensors are mounted downstream of the catalytic converter (post-converter - Sensors 2). The catalytic converter has two chambers (left and right). Bank1 is left, drivers side. Bank2 is right, passengers side. The Bank2 Sensor1 sensor (Air/Fuel Sensor) is the one located on the 'right and ahead' of the converter. The PowerTrain Control Module (PCM) is reporting that the heater or circuit ( wiring / plug-in) of the sensor is malfunctioning.

Jan 31, 2011 | Toyota Camry Cars & Trucks

1 Answer

Where is the front oxygen sensor located on a 2003 chevy avalanche 1500 5.3l


There are 4 oxy. sensors listed for your truck. they're located as follows
Left exaust before catalytic converter. bank1 sensor1-after cat conv.
bank1 sensor2. right exaust before cat.conv. bank2 sensor1-after cat.
conv. bank2 sensor2. Hope this helps.

Mar 31, 2010 | 2003 Chevrolet Avalanche

1 Answer

OBDII scanner show error on heater circuit o2 sensor bank2 sensor 1, I can't seem to find out on my manual cd what sensor is it. It has 4 or 5 sensors possible but doesn't explain bank2 sensor1?


is your vehicle equip with a v6 engine? if so it mean when standing in front the vhicle the exhaust on your right is on bank 2 & the o2 sensor should be mounted there

Sep 01, 2009 | 2001 Suzuki Xl 7

2 Answers

P0155?


P0155 OBDII code refers to HO2S heater circuit - bank 2 sensor 1 , not knowing your engine size and engine vin code thats about as far as we can go with our answer . we can say bank 2 sensor 1 is the passenger side upstream oxygen sensor has a heater circuit problem , could possibly be a bad oxygen sensor . you ask what is that - thats what it is ... cheers .

Jan 11, 2009 | 1999 Chevrolet Silverado 1500

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