Question about 2004 Dodge Intrepid

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My son has an 04 intrepid that has the engine light on. The dash board reads P0152 (oxygen sensor). Replaced all and disconnected Neg bat terminal for the time it took to replace all 4 sensors. Light went off then came back on about 10 minutes later. Dash still reads "High circuit voltage to the bank 2 sensor 1

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  • Dodge Master
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Circuit High voltage to the bank 2 sensor 1means that the control module is receiving an high voltage signal from one of the sensors (voltage over 1.5 volts).
This can happen because the sensor is chipped, because there is a contact or a broken wire on the sensor wiring.

Try first unplugging battery cable to reset the ECU.
Check wires and connector to bank 2 sensor 1.
Test again the faulty sensor with a multimeter, the sensor may be faulty.

Posted on Jul 21, 2009

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Posted on Jan 02, 2017

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How to fix codes p0152 and p1564 on a 2002 maxima se


p0152 is bank 2 sensor 1 oxygen sensor code...make sure it was plugged back in or sensor may need replacement or you may have damaged the harness. p1564 is for the automatic speed control device basically the same possibilities with this circuit.

Feb 22, 2017 | 2002 Nissan Maxima SE

1 Answer

The check engine comes on but I dont lose power the code it is showing is sid 152.does anyone know what it is.


some codes dont cause power loss or may not even notice anything wrong but a check engine light a p0152 code means following answer courtesy of OBD-CODES.com === P0152 O2 Sensor (High Voltage) OBD-II Trouble Code Technical Description Article by Dale Dale Toalston ASE Certified Technician 02 Sensor Circuit High Voltage (Bank 2 Sensor 1) What does that mean? The o2 (oxygen) sensors basically measure oxygen content in the exhaust. The PCM (powertrain control module) then uses this information to regulate fuel injector pulse. The o2 sensors are very important to proper operation of the engine. Problems with them can cause the PCM to add or take away too much fuel based on the faulty o2 sensor voltage. A P0152 code refers to the Bank 2, sensor 1, o2 sensor. (Bank 1 would contain cylinder 1 and bank 2 is the opposite bank. Bank 2 doesn't necessarily contain cylinder 2.) "Bank 2" refers to the side of the exhaust that DOES NOT contain cylinder number 1 and "Sensor 1" indicates that it is the pre-cat sensor, or forward(first) sensor on that bank. It is a four wire sensor. The PCM supplies a ground circuit and a reference voltage of about .5 volts on another circuit. Also for the o2 heater there is a battery voltage supply wire and another ground circuit for that. The o2 sensor heater allows the o2 sensor to warm up faster, thus achieving closed loop in less time than it would normally take for the exhaust to warm the sensor up to operating temperature. The O2 sensor varies the supplied reference voltage based on oxygen content in the exhaust. It is capable of varying from .1 to .9 volts, .1 indicating lean exhaust and .9 indicating rich exhaust. NOTE: A condensed explanation of fuel trims: If the o2 sensor indicates that the oxygen voltage reading is .9 volts or high, the PCM interprets this as a rich condition in the exhaust and as a result decreases the amount of fuel entering the engine by shortening injector "on time". The STFT (short term fuel trims) would reflect this change. The opposite would occur when the PCM sees a lean condition. The PCM would add fuel which would be indicated by a single digit positive STFT reading. On a normal engine the front o2 sensors switch rapidly back and forth two or three times per second and the STFT would shift positive and negative single digits to add and remove fuel to compensate at a similar rate. This little "dance" goes on to keep the air/fuel ratio at it's optimal level. Short term fuel trims or STFT reflect immediate changes in fuel injector "on-time" while long term fuel trims or LTFT reflect changes in fuel over a longer period of time. If your STFT or LTFT readings are in the positive double digits (ten or above), this indicates the fuel system has been adding an abnormal amount of fuel than is necessary to keep the proper air/fuel ratio. It may be overcompentsating for a vacuum leak or a stuck lean o2 sensor, etc. The opposite would be true if the fuel trim readings are in the negative double digits. It would indicate that the fuel system has been taking away excessive amounts of fuel, perhaps to compensate for leaking injectors or a stuck rich o2 sensor, etc. So when experiencing o2 related issues, reading your fuel trims can indicate what the PCM has been doing over the long term and short term with regard to fuel. This code indicates that the o2 sensor was stuck too high or in the rich position. The PCM monitors this voltage and if it determines that the voltage is too high out of range for too long, P0152 may set. Symptoms Symptoms may include: MIL (Malfunction Indicator Lamp) illumination Engine may run very rough Engine may be running lean or rich depending on if the o2 sensor is reading correctly or incorrectly Lack of power Increased fuel consumption Causes Potential causes of an P0152 code include: Bad bank 2, 1 o2 sensor incorrectly reading rich condition Engine running rich and o2 sensor Correctly reading rich condition Signal shorted to voltage in harness Wiring harness damage/melted due to contact with exhaust components Vacuum leak (make have lean codes (P0171, P0174) present with it) Leaking injectors Bad fuel pressure regulator Bad PCM Possible Solutions If you have any lean or rich codes associated with this code, focus on fixing these first because these can cause the o2 sensor voltage readings to appear to be faulty when they are in fact only reading correctly. So, with the engine running at operating temperature, use a scan tool to observe the Bank 2,1 o2 sensor voltage reading. Is it high? If so, look at the long term and short term fuel trim readings. The fuel trims are affected by the o2 sensors as noted above. If the LTFT reading for that bank is indicating negative double digits (PCM trying to take away fuel to compensate for problem) try inducing a vacuum leak to see if the sensor voltage then goes lean and the fuel trims increase. If the o2 sensor responds, suspect a problem with the engine, not the sensor. There may be other engine codes to help you. If the o2 sensor reading remains high (0.9 volts or above) and won't respond then shut off engine. With KOEO (Key on engine off) disconnect the o2 sensor and look for signs of corrosion or water intrustion. Repair as necessary. The voltage reading should now be about 0.5 volts. If so, replace the o2 sensor, it's shorted internally. If after unplugging the o2 sensor the voltage reading on the scan tool doesn't change, then suspect wiring problems. Inspect the harness and look for any melted wires or anywhere that the o2 sensor harness is making contact with the exhaust components. If you are unsure, you can check for continuity of all four wires between the sensor and the PCM with an ohmmeter. Any resistance at all indicates a problem. Repair as necessary.

Read more at: http://www.obd-codes.com/p0152
Copyright © OBD-Codes.com

Jul 28, 2015 | Cars & Trucks

1 Answer

0152 coed


P0152 P0152 - O2 Sensor Circuit High Voltage Bank 2 Sensor 1Possible causes - Faulty Front Heated Oxygen Sensor Bank 2
- Intake air leaks may be faulty
- Exhaust gas leaks
- Front Heated Oxygen Sensor Bank 2 harness is open or shorted
- Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
eplacing the Front Heated Oxygen Sensor Bank 2 usually takes care of the problem
Symptoms- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust P0152 Description The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.

Mar 19, 2013 | 2005 Dodge Ram 1500

1 Answer

2006 Ford Taurus code P0152


Common Problems That Trigger the P0152 Code
  • Defective Oxygen Sensor
  • Faulty Oxygen Sensor wiring or connections
  • Shorted Oxygen Sensor Heater element(s)
Common Misdiagnoses
  • Oxygen Sensor is replaced when the problem is faulty Oxygen Sensor wiring or connections
  • Oxygen Sensor is replaced when the problem is an over-reporting Mass Air Flow Sensor, clean mass air flow sensor first, to see if thats the problem. good-day ! just type this in search on pc. 02 sensor symtoms, and it will give you the details of a bad sensor.

Apr 27, 2012 | 2006 Ford Taurus

2 Answers

What does p1684 mean on the dash board, now my car wont start up. I have a 98 dodge intrepid 2.7 liter


p1684 just means the battery has been disconnected. Check the tightness of the battery terminals. make sure the terminals are free of corrosion..

When you say " wont start", are you saying the engine wont turn when turning the ignition key or the engine will turn over but not run?

Dec 31, 2010 | 1999 Dodge Intrepid

1 Answer

1997 Trac Light stays on. Also Check engine light.check engine diagnosed as a heated oxygen sensor. Is 6this related to trac light off staying lit?


o.k listen it is almost never a o2 sensor it is a leaky vacume line look around see if your air filter is on correctly the lose hoses or lose hose clamps make sure everything is on then disconnect neg battery terminal and count to 30 then put it back on .

Jun 25, 2010 | Cars & Trucks

2 Answers

Obd2 code p0152 on 2001 Dakota


Oxygen Sensor
A code P0155 may mean that one or more of the following has happened:
  • O2 Heater element resistance is high
  • Internal short or open in the heater element
  • O2 heater circuit wiring high resistance
  • open or short to ground in the wiring harness
Possible Solutions
  • Repair short or open or high resistance in wiring harness or harness connectors
  • Replace oxygen sensor (cannot repair open or short that occurs internally to sensor)

Sep 10, 2009 | 2002 Dodge Intrepid

1 Answer

Alternator and electrical problems ive changed alternator twice,now clicking noise under dash bat. light comes on and dash lights flicker


check all battey connections and system grounds. Check that the battery has 12v and holds properly when load tested. To check charging system, don't disconnect any battery leads...put a volt meter across the battery. when running, you should have at least 12.9v and volts should not drop. (usual reading is generally at or near 13) at idle with all accessories on voltage should be close to that as well. voltage should not exceed 14.Also make sure that drive belt is not slipping.

May 12, 2009 | 2003 Ford Focus

1 Answer

I have a 2002 Dodge Intrepid ES 3.5L and on the way home this evening my engine light came on with a 440 code. I replaced the gas cap and just replaced the crank shaft sensor 5 days ago. The engine light...


try to disconnect the neg and pos charge to the battery almost every newer car has a computer in it it may be that the computer just needs to be reset

Mar 12, 2009 | 2002 Dodge Intrepid

1 Answer

Engine diagnostic codes


I don't have a dodge ram but the codes for the dodge vehicles where pretty much the same. For my intrepid the codes read for the following numbers

12 - Problem with battery connection (This usually happens if you disconnect the battery)
21 - Problem with the oxygen sensor circuit
52 - Oxygen Sensor signal input indicates rich mixture during engine operation.

It sounds like you may need to change an oxygen sensor. Hope this helps.

Aug 15, 2008 | 1995 Dodge Intrepid

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