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Need a new po135 - 02 heater circuit - 2003 Dodge Grand Caravan AWD

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UPSTREAM OXYGEN SENSOR
The oxygen sensor is installed in the exhaust manifold Upstream Heated Oxygen Sensor - 2.4L. or Upstream Heated Oxygen Sensor - 3.0L. or Upstream Heated Oxygen Sensor - 3.3/3.8L .

CAUTION: Do not pull on the oxygen sensor wire when unplugging the electrical connector.

WARNING: THE EXHAUST MANIFOLD AND CATALYTIC CONVERTER MAY BE EXTREMELY HOT. USE CARE WHEN SERVICING THE OXYGEN SENSOR.

REMOVAL
Raise and support vehicle.
Unplug oxygen sensor electrical connector.
Use a socket such as Snap-On YA8875 or equivalent to remove sensor.
When the sensor is removed, the exhaust manifold threads must be cleaned with an 18 mm X 1.5 + 6E tap. If using original sensor, coat the threads with Loctite 771-64 anti-seize compound or equivalent.
INSTALLATION
Reverse removal procedure to install a new sensor
New sensors are packaged with compound on the threads and no additional compound is required. The sensor must be tightened to 27 N·m (20 ft. lbs.) torque

Posted on Jul 12, 2010

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I have a 06 Corolla that is giving a P0037 code I have replaced the Oxygen sensor closest to the Catalytic converter Twice


it should be the o2 after cat converter ----and the following information courtesy of OBDP0037 HO2S Heater Control Circuit Low B1S2 OBD-II Trouble Code Technical Description Article by Dale Dale Toalston ASE Certified Technician Generic: HO2S Heater Control Circuit Low (Bank 1 Sensor 2) Nissan: Heated oxygen sensor (HO2S) 2 Bank 1 - heater voltage low What does that mean? Heated Oxygen sensors (HO2S) are inputs used by the PCM (Powertrain Control Module) to determine oxygen content in the exhaust system. Bank 1, sensor 2 refers to the second sensor back on bank 1. The PCM uses the information gained from the Bank 1,2 HO2S mainly to monitor the efficiency of the catalytic converter. Integral to this sensor is a heater element The PCM controls this heater to warm up the sensor to operating temperature. This allows the engine to enter closed loop faster and reduces emissions on cold startup. The PCM continuously monitors the heater circuits for abnormal voltages or in some cases, even amperages. Depending on the make of vehicle, the Oxygen sensor heater is controlled one of two ways. One way is that the PCM directly controls the voltage feed to the heater either directly or via a HO2S relay and a ground is supplied from the vehicle's common ground. The other way would be a fused 12 volt Battery feed (B+) that feeds 12 volts to the heater element anytime the ignition is on and the control of the heater is done by a driver in the PCM which controls the ground side of the heater circuit. Finding out which one you have is important because the PCM activates the heater under various circumstances. If the PCM detects an abnormally low voltage condition on the heater circuit, P0037 may set. Symptoms Symptoms of a P0037 DTC may include: Malfunction indicator lamp (MIL) illumination There will likely be no other symptoms Causes Potential causes of a P0037 trouble code may include: Bank 1,2 oxygen sensor heater element has failed Physical damage to heated oxygen sensor has occurred Control circuit (or voltage feed, depending on system) is shorted to ground PCM Oxygen sensor heater driver has failed === Possible Solutions== Do a visual inspection of the Bank 1,2 HO2S and wiring harness. If there is any damage to the sensor or any damage to the wiring, repair/replace as needed. Make sure wiring is routed away from exhaust. If all appears okay, unplug the Bank 1,2 HO2S and verify that there is 12 volts B+ present with the key on engine off, (or ground is present, depending on the system). Verify the heater control (ground) circuit is intact. If so, remove the o2 sensor and inspect for damage. If you have access to resistance specifications you can use a Ohmmeter to perform a resistance test of the heater element. Infinite resistance indicates an open in the heater. Replace the o2 sensor as necessary.

Read more at: http://www.obd-codes.com/p0037
Copyright © OBD-Codes.com-CODES.com

Jul 28, 2015 | 2006 Toyota Corolla

1 Answer

2003 kia rio Check engine light keeps comin on... Problem code is P1166 for O2 sensor heater circuit.... I replaced spark plugs n cables, cleaned maf sensor, ran some fuel injector cleaner and bought new...


You would need to use a scanner to watch the data coming from the sensor. In some cases the heater circuit for the sensor is faulty, and in other cases the sensor is reading rich only. It is supposed to switch back and forth between rich and lean depending on the exhaust gas content.
The heater circuit makes the sensor hot enough to use within 2 minutes of starting the engine.

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1 Answer

A/C Heater Amplifier/Resistor for Auto Climate Control


Does the Blower Motor work when power
is applied-- just to it?
Sounds like a high current draw on that circuit
Need wiring diagram & ability to know how to test
for the problem
I only work from factory diagnostic manuals & wiring
books- I buy for all my vehicles when they are new.
No way you can push & poke,wish & hope
You need to see the circuits on paper & have the
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Jul 17, 2013 | 2002 Nissan Maxima

1 Answer

2005 dodge grand caravan 3.8 code po135 in stalled new botch o/2 sensor cleared codes drove van check eng light came back on same code whats is going on


Code 135 is for a faulty heater in the O2 sensor. Since you have replaced the sensor the problem is probably the circuit or the power source for the heater.
You'll need to check the heater circuit next.

Jul 29, 2012 | Cars & Trucks

1 Answer

I have no power to my heater on a 1997 honda accord


Then you must get wiring diagrams for your heater blower circuits and trace the circuits to find out where the failure is. If the motor was/is bad, there is a good chance that the fuse is blown.

Nov 27, 2011 | 1997 Honda Accord

2 Answers

I have a p016102 sensor heater circuit malfunction (bank 2 sensor 2) what does that mean


It basically means the PCM detected either an excessive current draw, or an open or short in the circuit powering the oxygen sensor's heater circuit. This is in reference to the Heated Oxygen Sensor (2) located rear of catalytic converter (Bank 2).

A code P0161 may mean that one or more of the following has happened:
· HO2S heater power circuit open
· HO2S heater ground circuit open
· HO2S signal tracking (due to oil or moisture in the connector)
· HO2S is damaged or has failed PCM has failed

Possible Solutions
· Replace HO2 Sensor
· Repair open or short in power circuit
· Repair open or short in ground circuit
· Repair damaged connector due to tracking

Dec 12, 2009 | 2003 GMC Sierra 2500HD

2 Answers

My 02 toyota 4runner have code p1135


CODE P1135 AIR FUEL RATIO SENSOR HEATER OR CIRCUIT FAULT.THE AIR FUEL SENSOR AHEAD OF THE CATALYTIC CONVERTER.BASICALLY ITS THE UPSTREAM SENSOR LOCATED IN THE EXHAUST MANIFOLD.THIS IS THE PART YOU NEED IT LOOKS LIKE OXYGEN SENSOR .BUT ITS NOT.

Oct 06, 2009 | 2002 Toyota 4Runner

1 Answer

My check engine light has come on in my 2006 Pontiac G6 after 2 and a half years. What could possibly be wrong since I keep my car serviced and the guys had just told me that my car was in tip top shape?


P0016 - Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A
P0030 - Heated Oxygen Sensor (H02S) Heater Control Circuit Bank 1 Sensor 1
P0031 - Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 1
P0032 - Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 1
P0036 - Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2
P0037 - Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2
P0038 - Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 1 Sensor 2
P0050 - Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 1
P0051 - Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 2 Sensor 1
P0052 - Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 2 Sensor 1
P0053 - HO2S Heater Resistance Bank 1 Sensor 1 (PCM)
P0054 - HO2S Heater Resistance Bank 1 Sensor 2 (PCM)
P0056 - Heated Oxygen Sensor (HO2S) Heater Circuit Bank 2 Sensor 2
P0057 - Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 2 Sensor 2
P0058 - Heated Oxygen Sensor (HO2S) Heater Circuit High Voltage Bank 2 Sensor 2
P0068 - Throttle Body Airflow Performance (PCM)
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Jun 25, 2009 | 2006 Pontiac G6

2 Answers

1998 honda accord check engine light on code p0141


SECONDARY HEATED O2 SENSOR HEATER CIRCUIT FAULT SENSOR 2.

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2 Answers

2005 Neon engine light came on and stays on. Car drives okay. Has around 34,000 miles. No other problems


Take it to Autozone or Advanced auto and get an engine diagnostic and ask them to printout the results. Most times it's a sensor.

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