IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Code P0158 causes?

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Old 12-25-17 | 04:15 PM
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Default Code P0158 causes?

I was driving my car the other day and noticed my check engine light came on. I realized along with the light my display is now reading TRAC OFF. Odd..

i took it to get the code read and it came back as these:






I assume they are all connected somehow.. anybody had this happen? I don’t wanna shell out a ton of money at the stealership.

*the car is a Lexus is250 AWD with 42,000 on the odometer.

​​​​​​​Thanks in advance
Old 12-27-17 | 09:02 AM
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Since I found out I was under warranty still, I decided to take it to the dealer, so we’ll see what they have to $ay...

Updates soon to come
Old 01-03-18 | 09:41 PM
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Still at the dealer.. they said they will try replacing the oxygen sensor but stated it look ok 🤔
Old 01-04-18 | 08:47 AM
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Hard to say. Depends on age and miles of the car. Could be altenator/battery failing. These cars do strange things when the running voltage starts acting poorly. Lots of weird, unconnected codes sometimes fire off.
Old 01-04-18 | 09:01 AM
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Keep us posted but hopefully its as stated, a battery issue as those seem pretty random.
Old 03-15-24 | 03:58 PM
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Default Po158

After replacing bank 2 sensor 2 twice, PO158 code came back after 45 miles. BANK 2 SENSOR 1 can cause sensor 2 to read high voltage. Replacing sensor 1 solved the problem!! It is a hell of a lot easier to get to than sensor 2. Freaking dealer charged me $400 to replace a $45 sensor that would take any halfway competent person 15 minutes to replace! Hope this helps someone
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