Question about 2003 Toyota Tacoma

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What is check engine code p0135 - 2003 Toyota Tacoma

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Reasons are:
HO2S no. 1 heater circut is open or shorted
HO2S no. 1 is defective
Defective ECM

Using a scan tool, read freeze frame data. Freeze fram data records engine conditions when a malfunction is detected.

Access ECM behind glove box. Turn ignition on. Using DVOM, backprobe ECM harness connector. If DTC P0135 is set, measure voltage between ground and terminal No. 3 (Blue/Black wire) at ECM harness connector E10. If DTC P0155 is set, measure voltage between ground and terminal No. 4 (Yellow/Red wire) at ECM harness E10. Voltage should be 9-14 volts at each terminal. If voltage is as specified, replace ECM.

If not, Disconnect suspect HO2S No. 1 harness connector. Measure resistance between terminals B+ (Black/Yellow wire) and HT (Blue/Black wire on bank No. 1 ; Yellow/Red wire on bank No. 2) at HO2S connector (component side). Resistance should be 11-16 ohms at 68 degrees F and 23-32 ohms at 1472 degrees F. If resistance are not specified, replace appropriate HO2S. If resistance are specified, Repair wiring between ECM and appropriate HO2S, or between appropriate HO2S and EFI main relay (Black/Yellow wire at HO2S and Red wire at EFI main relay)

Posted on Mar 16, 2011

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1999 jaguar xk8 code reading. p1646 p1647 p1165 p0141

Posted on Jan 26, 2013

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: check engine light, code P0135 H02S HPS1 Question

  • just because PO135 set it doesnot neccesarlarly that the heated oxygen sensor on bank 1 has gone bad.
  • if the motor runs smoothly and your fuel eccon isn't terrible
  • it sensor maybe bad
  • a 7/8 inch wrench should remove it easily
  • PO135 can also set if the sensor detects to much oxygen ( unburnt Fuel) caused by missfire ( tuneup Related)

Posted on Jul 27, 2010

maklean
  • 1665 Answers

SOURCE: Check engine

Hi have a look at link below.
http://cardealerforums.com/rec-autos-makers-honda/t116093-honda-civic-1999-p0135-oxygen-sensor-change-d16y7-story.html

Posted on May 26, 2008

  • 160 Answers

SOURCE: P0135 and P0141 codes

possibly unplugged

Posted on Nov 12, 2008

  • 54 Answers

SOURCE: 98 mercury villager OBD I code P0135

This code refers to the front oxygen sensor on Bank 1. The heated circuit in the oxygen sensor decreases time needed to enter closed loop. As the O2 heater reaches operating temperature, the oxygen sensor responds by switching according to oxygen content of the exhaust surrounding it. The ECM tracks how long it takes for the oxygen sensor to begin switching. It the ECM determines (based on coolant temp) that too much time elapsed before the oxygen sensor began operating properly, it will set P0135.
Repair short or open or high resistance in wiring harness or harness connectors.
Since you have already changed out your O2 sensor (as long as you used to OEM replacement and not the "Universal" replacement) you should not have to replace it again. You might check your thermostat to part of the time it takes for the O2 sensor to start switching being based on coolant temp, if your thermostat is not operating properly, it could cause the coolant temp to take longer than what is considered by the ECM to be normal.

Posted on Feb 22, 2009

motor1258
  • 6674 Answers

SOURCE: Check engine light on, 1997 cadillac Deville.PCM codes

PO135 is oxygen sensor Bank1 sensor1. PO404 is EGR.
personally, I'd pull EGR off, clean pintle good with throttle body cleaner or carb cleaner, re-install, erase codes & try it for a while & see if it code(s) come back.

Posted on May 07, 2009

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Have a Ford fusion 06 Have p0141 code I fix the oxygen sensor but the codes still comes on?


Did you replace the right one ? This code does not necessarily mean the O2 sensor is bad . The code description say O2 heater " CIRCUIT " bank 1 sensor 2 Did you check the wiring , the fuse ?
P0141 - O2 Heater Circuit (Bank 1, Sensor 2) Description: See the description for DTC P0135. Possible Causes: See the possible causes for DTC P0135. Diagnostic Aids: See the diagnostic aids for DTC P0135. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to Pinpoint Test DW . P0135 - O2 Heater Circuit (Bank 1, Sensor 1) Description: During testing the heated oxygen sensor (HO2S) heaters are checked for open and short circuits and excessive current draw. The test fails when the current draw exceeds a calibrated limit or an open or short circuit is detected. Possible Causes:
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Diagnostic Aids: Check the HO2S electrical connector for damage, corrosion, and water intrusion.
Damaged HO2S heater. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to Pinpoint Test DW .

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P0773
This is the torque converter lockup solenoid. Is the converter locking up? The solenoid can be accessed by removing the trans oil pan. Coil resistance is 10.16.9 ohm, check to see if the solenoid operates when 12DC is applied.

Can also be the wiring to the solenoid from ECU.

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