choquette
Senior Member
- Joined
- Mar 23, 2012
- Posts
- 107
- Reaction score
- 10
- Ram Year
- 2016
- Engine
- CUMmins 6.7
Is it a coincidence that I got this code p0113 after I installed my hids? IF not how what could cause that?
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A code P0113 may mean that one or more of the following has happened:
Internally failed IAT sensor
Faulty connection at IAT sensor
Open in IAT ground circuit or signal circuit
Short to voltage in IAT signal circuit or reference circuit
IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
Faulty PCM (less likely but not impossible)
IAT harness and/or wiring routed too close to high-voltage wiring
This one has my interest peaked as those HID ballast may be an issue also if the IAT wiring is routed close to it.
If the visual inspection finds nothing out of place, could reset the code and unplug the ballast and check again to narrow it down.
Yeah, the interference from HID components is enough to mess with radio, but I doubt that is has anything to do with the IAT for two reasons - one the trouble code is indicating an open circuit, not a short (i shouldn't have said "short" in my first response - should have said "open"), and two the IAT wiring is part of the engine harness, not the chassis harness... Unless the OP somehow really jacked up the install to the point where there's a massive electrical problem (doesn't sound like it).
He maybe accidentally damaged the sensor/connector/wiring somehow during the install, or it's purely a coincidence that the sensor failed.
I do think that your suggestion about unplugging the ballast and resetting the code is a good idea if all else fail - ya never know!
The code is labeled as a "High Input" failure. Does not necessarily mean a true open (still possible) but a high resistant condition exists. If the EMI from the ballast is high enough to cause the IAT to fail and not complete a test or nominal sensor voltage return, then I can see this failure occurring.
Of course this is all speculative spit balling. While beyond most home DIY'ers, I would love to see a scope meter on the IAT circuit and see what the waveform is with and without the ballast in the loop.