Question about 2003 Toyota Highlander
Scanned with OBD2, code P0158 came up. What is this part? Unable to find repair/parts manual for this make/model.
Hello/ The P-0158 code realtes to the Oxygen Sensor.
Specifically, it is as follows: Oxygen Sensor Circuit has High Voltage; Bank 2 Sensor 2.
If it under warranty, take it to a dealer to get it replaced free of charge. If not, go tho a dealer and tell them that you want Oxygen Senso Bank 2, Sensor 2, and have them tel you where it is. Please do not buy an "aftermarket" sensor, they have been known to read incorrectly, and you problem will not be solved.
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Posted on Feb 05, 2009
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Posted on Jan 02, 2017
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On this make the warning lights all come on together, the check engine light is the cause of all.
When the service engine soon light (Also called the check engine light or engine management light) is turned on this is to alert you to the fact that Powertrain Control Module (computer) has detected a failure somewhere in the systems it controls you may not feel any difference in the way the engine runs, this can be the transmission or the engine or emission system, there are fault codes set in the modules memory for these faults. What needs to happen now is to have the powertrain control module scanned with a special tool called an OBD2 electronic engine control scanner or a OBD2 code reader. Once the code(s) are read then you must perform the diagnostics for each code and make the appropriate repairs based on the findings of the diagnosis that was performed, this is called doing "Pinpoint" testing.
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