Does anyone have access to the TSB for these codes on an LR3? I've tried google and haven't been able to find the text or pdf of this one.
TSB for P0137/P0157 on LR3
- Thread starter jafir
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Whats the code description? Maybe that will help me remember what tsb your talking about.
Is that the bulliten that tells you to just replace the o2 sensor because of a known manufacturing fault? I looked them up and its both downstream o2 sensor inputs low
Is that the bulliten that tells you to just replace the o2 sensor because of a known manufacturing fault? I looked them up and its both downstream o2 sensor inputs low
Heated exhaust gas oxygen sensor - circuit low voltage (bank 2, sensor 2)
is what my scanner says.
is what my scanner says.
Im looking at an training manual from the 4.2 and its saying that its sensor output on bank A for the 137 and bank B for the 157 . Let me see if I can find more. But I think its picking on the sensor voltage and not the heater.
Thanks!
I haven't actually done any troubleshooting yet. I figured if there was a TSB there might be something good in it, like a software upgrade or a known bad wiring harness or something. But if it's just a known bad batch of sensors I guess normal troubleshoot is the proper course.
I haven't actually done any troubleshooting yet. I figured if there was a TSB there might be something good in it, like a software upgrade or a known bad wiring harness or something. But if it's just a known bad batch of sensors I guess normal troubleshoot is the proper course.
Here you go. Took a while to figure out how to attach this. Its a generic p code list. I use it a lot
I just remember a TSB about o2 sensors but I think it was on newer stuff. Kinda strange its both banks. Let me see if I can attach a schematic for the trucks engine management stuff.
I'm only getting the P0157. I think the title of the TSB is either. Which would make sense if it's a defective batch of sensors I guess
Or just a bad one. If they come out of the pipe I would switch them side to side and see if the problem follows. Your call though, probably just a bad sensor. The schematic is too big to attach. I think the bad sensors where on the 5.0 and the Jags had more of them.
I don't go back to work till tuesday, if you still need it bump this thread back to the top.
I don't go back to work till tuesday, if you still need it bump this thread back to the top.
I would measure the resistance of the heater circuit on the o2 sensors on both sides. The bad one will likely be really high or an open circuit.