Could it be my TIPM?

Bigbernie

Bigbernie

Member
Joined
May 17, 2021
Messages
47
Location
Newark, NY
Got a lot of mystery issues.

Left turn signal sometimes works.
Intermittent wipers gone.
TPMS reads low on right rear tire (pressure good)
All 4 O2 sensors went at once.
Indicator lights flash when opening and closing doors.
Alarm sometimes won't engage.
Driver's window sometimes works
#6 cylinder fuel injector loses power supply.
Radio loses sat antenna connection (part of 'network' code?)
 
Going to ask, has the battery been replaced or checked to see if it is good lately? Could be a poor battery or a bad ground / corroded terminals / cables. Cold weather can cause what seems like a good battery to just give up.
 
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Really sounds like a grounding or possibly some parasitic drain?
With everything you described I would check connections at the ECU for signs of degradation or animals as well. Could have a wiring harness(es) going bad.

Man thats a lot all at once. Everything you show, short of the TPMS, relates itself to low voltage/bad ground.
 
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Danarch said:
Going to ask, has the battery been replaced or checked to see if it is good lately? Could be a poor battery or a bad ground / corroded terminals / cables. Cold weather can cause what seems like a good battery to just give up.
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Yup battery is brand
FishFam JKU said:
Really sounds like a grounding or possibly some parasitic drain?
With everything you described I would check connections at the ECU for signs of degradation or animals as well. Could have a wiring harness(es) going bad.

Man thats a lot all at once. Everything you show, short of the TPMS, relates itself to low voltage/bad
FishFam JKU said:
Really sounds like a grounding or possibly some parasitic drain?
With everything you described I would check connections at the ECU for signs of degradation or animals as well. Could have a wiring harness(es) going bad.

Man thats a lot all at once. Everything you show, short of the TPMS, relates itself to low voltage/bad ground.
Click to expand...
Good idea ill check tomorrow and follow up
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Not sure what year you jeep is. But ive seen the tipm issue on many hemi and 3.8. Ive never seen an injector issue with the tipm though. Nor 02 issues. Only the pcm has caused those in my experience.

while most of the others would be under the tipm. Every tipm I have confirmed and repaired ran fine. They had a host of other issues. Jumping wipers, headlights going off, horn beeping for no reason, wipers spraying, doors locking.....Even with the key off and out of the switch.... they still ran fine.

Id suspect wiring, grounding as well
 
Creston said:
Not sure what year you jeep is. But ive seen the tipm issue on many hemi and 3.8. Ive never seen an injector issue with the tipm though. Nor 02 issues. Only the pcm has caused those in my experience.

while most of the others would be under the tipm. Every tipm I have confirmed and repaired ran fine. They had a host of other issues. Jumping wipers, headlights going off, horn beeping for no reason, wipers spraying, doors locking.....Even with the key off and out of the switch.... they still ran fine.

Id suspect wiring, grounding as well
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I have an 08 JK. I've checked all ground wires. Pita to find every last one. But all are fine. I did have a short that sort of precipitated the issues.

How do I verify that the PCM/ECU is the culprit? I don't want to keep throwing parts at it. I also don't want to have to go to the stealership.
 
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