Po141 jeep cherokee

After checking power, the next step is to make sure that the rear O2 sensor's heater is getting Ground. You can check for Ground in several ways, in this tutorial we'll check for it with a simple multimeter voltage test. NOTE: The illustration of the connector above is of the connector on the oxygen sensor itself.

This tells you that the downstream oxygen sensor's heater element is getting Ground. So far you've confirmed that the HO2S 12's heater element is getting both power and Ground. The next step is to check the heater element's resistance with your multimeter Re-check all of your connections and make sure you're testing the correct terminal. Now that you've confirmed that the rear O2 sensor is getting power and Ground, the last test is to do a multimeter resistance test.

What we're looking for is for the rear O2 sensor's heater element's resistance to be within it's factory resistance.

P0132 JEEP - O2 Sensor Circuit High Bank 1 Sensor 1

NOTE: Just a reminder that the downstream oxygen sensor has to be completely cold before proceeding with this test since the manual calls for the O2 sensor to be at room temperature for the resistance test.

Locate the O2 sensor terminals number 3 and number 4 of the O2 sensor connector itself not the engine wiring harness O2 connector. With your multimeter in Ohms mode, probe terminals number 3 and number 4 of the O2 sensor itself. This test result tells you that the rear oxygen sensor's heater is OK. This confirms that the rear O2 sensor's heater element is fried. Replacing the rear O2 sensor with a new one will solve the P trouble code lighting up the check engine light CEL.

You can correctly conclude that your 4. Page 1 Page 2 Page 3. These are the test steps: 1. All Articles: Jeep 4. Applies To:. Jeep Vehicles:. Do NOT follow this link or you will be banned from the site!Privacy Center.

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Jeep Grand+Cherokee P0141 Engine Trouble Code

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Traversing water can cause damage that may not be covered by the new vehicle warranty. Always off road responsibly in approved areas.You don't need any expensive diagnostic equipment for the tests. All you'll need is a simple multimeter. If you've been wondering what a trouble code P is trying to tell you In contrast, the California Emissions equipped 4.

NOTE: The 4. The only difference is the colors of the wires of the engine wiring harness rear O2 sensor connector.

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When you first start up your Jeep, the engine's exhaust isn't hot enough to get the O2 sensor activated fast enough. These gaps, in the oxygen sensor's operation, result in your engine polluting more. The only way to keep the oxygen sensor working under any engine operating condition is with an internal heater.

po141 jeep cherokee

The heater only requires two things to activate and these are 12 Volts and ground. So, to test the oxygen sensor's heater, we need to know what wires feed it with power and Ground since it's a 4-wire oxygen sensor. Below, you'll find the color of the wires of the engine wiring harness oxygen sensor connector for the rear oxygen sensor:. As mentioned before, the oxygen sensor's internal heater needs battery power and Ground to activate and start heating the sensor.

So, the very first thing we're gonna' do is check that the rear O2 sensor is being fed with battery power when you turn the key to it's On position. Perform this test with a completely cold engine. Be careful and take all necessary safety precautions! If you raise your vehicle with a jack, place it on jack stands!

Locate the downstream oxygen sensor and disconnect it from its harness connector. Ground the black multimeter test lead directly on the battery's negative terminal.

The next step is to make check that the black BLK wire, of the O2 sensor engine wiring harness connector, is feeding Ground to the heater element. Re-check that you're testing the correct wire and that the Key is in the RUN position but don't crank or start the engine and re-test.

If you still don't see 10 to 12 Volts DC, then this test result tells you that the downstream oxygen O2 sensor itself IS NOT bad since without power, the heater element won't work.

po141 jeep cherokee

Although it's beyond the scope of this article, the next step is to find out why this battery power is missing using a wiring diagram. Page 1 Page 2 Page 3. HO2S Sensor 2. Rear Oxygen O2 Sensor. Oxygen Sensor Bank 1 Sensor 2. Oxygen Sensor After the Catalytic Converter. Post-Catalytic Converter O2 Sensor.Visually inspect the related wiring harness and connectors.

Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins. The code means the the sensor is taking too long to warm up. What does this mean?

po141 jeep cherokee

The auto repair labor rates vary widely across the country, and even within the same city. The current amperage in the front heated oxygen sensor heater circuit is out of the normal range. An improper voltage drop signal is sent to ECM through the front heated oxygen sensor heater.

The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module ECM. In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor.

The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.

The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.

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Get Access to Factory Service Manuals. Related Information. Repair Importance Level: 2. Why is the Engine Light ON?This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Check the removed O2 sensor for damage from a defective catalyst by breaking the sensor or clogging sensor holes.

O2 Sensor 2004 Jeep Grand Cherokee Replacement - Bank 1 Sensor 2

The engine stuck in open loop will run extra rich and will burn more fuel and start to carbon up. The O2 sensor heater circuit for bank 1 sensor 2 is used to heat the internal parts of the O2 sensor on bank 1 sensor 2 only, and the code can be isolated just to this sensor. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle.

Get a quote and book an appointment online or speak to a service advisor at With YourMechanic you can skip the auto shop altogether. They send certified and screened mechanics straight to your door and enable you to save big on car repair and maintenance.

Cost of diagnosing the P code. No more waiting rooms! Our mechanics will come to you to diagnose and fix the P code. Recent Check Engine Light is on Inspection reviews. Excellent Rating. Average Rating 4. Number of Reviews 5, Rating Summary. Kenneth 7 years of experience. Request Kenneth. Kenneth is clearly a first-rate mechanic. He thoroughly inspected our vehicle and found that the engine light was on because of a crack in the filler neck hose. Rigoberto 10 years of experience. Request Rigoberto.

This is my first time using Your Mechanic. Rigoberto arrived earlier than the appointment time. He was very knowledgeable, helpful and answered all my questions. Jason 14 years of experience.Visually inspect the related wiring harness and connectors.

Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

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The control module monitors how long it take the sensor to warm up and start sending an adequate signal. The code is triggered when the sensor is taking too long to warm up. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Current amperage in the rear heated oxygen sensor heater circuit is out of the normal range.

The faster the heated oxygen sensor reaches that temperature the faster the sensor will start sending an accurate signal to the Engine Control Module ECM. In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor.

The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground. The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.

Get Access to Factory Service Manuals. Need more help? Get the P Jeep code diagnosed by a professional: Find a repair shop in your area.

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Related Information. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P Jeep code? Have you replaced any parts? Any information is appreciated. Repair Importance Level: 2. Why is the Engine Light ON? Home - About AutoCodes. Posted and Edit by AutoCodes.To find the proper model year for your vehicle, look at the 10th digit of your vehicle identification number VIN.

po141 jeep cherokee

The 10th digit will be a letter or a number. Find the corresponding letter or number in the table below to determine the model year of your vehicle.

P0141 JEEP - O2 Sensor 1/2 Heater Performance

If not, the manual should indicate where you can locate the VIN. The VIN is often found on the driver's side dashboard just beneath the windshield. The VIN is also commonly listed on the vehicle title, registration card, and insurance documents.

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Unlike cell phone apps that feature small screens and even smaller buttons, the Cherokee navigation system is designed for driving. A map update keeps your vehicle ready for the road ahead. To find the map that's right for your vehicle, select the appropriate model year from the menu above. You will be directed to a product page where you'll find installation instructions along with information on map coverage area and new road data.

Additional support is available via the Help Center. Accuracy, efficiency, performance—fresh data helps you stay on course and keeps your fuel tank full. Order your Cherokee map update today.

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Accuracy is key to staying on course and on time. Note: Statistics represent the average taken from current available map updates. The specific data included in a map update varies by navigation system. For additional assistance, visit the Help Center to find information specific to your vehicle including how to install map updates and tips for using your navigation system.

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