Passing Inspection after battery change

[AndySpill]

Is there a way, using Jscan, or some other iphone software that is compatible with a Jscan ODB 2 compatible reader, to determine if my JL is ready to be inspected after swapping out the dual AGM batteries has reset the vehicle's systems of driving data?

If so, what software, if any, and what in that software would I be looking for to see that I have driven enough/done enough of the things one needs to do after swapping batteries to not fail inspection due to lack of driving history otherwise erased by the battery swap?

I'm of course ok to fail an inspection because of legitimate and fixable service items not related to the battery swap.

Stated in the converse what indications might show if the vehicle wasn't ready?

TIA

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[GtX]

I did this on my WRX. I don't remember the specific app but recall finding it by looking at the images in the app store for readiness checks.

Jscan may do this. Haven't had to look.

Car scanner elm obd2 looks like a winner.

 

[There’sOnlyOne]

I use a ScanGuageII. It just says "ready" after scanning for codes, if no codes are present.
Drive cycles vary. Just drive it normally. It's vague but 20,30 up to 100 miles. Usually the lower mile range. There are some specific ways to drive pending make/model. But usually you just drive as usual for 20+ miles.

 

[KrzybonesJLU]

Dumb question.. what inspections are you referring to?

 

[AndySpill]

Dumb question.. what inspections are you referring to?

.....yearly State inspection.

 

[KrzybonesJLU]

.....yearly State inspection.

Yea no still dont understand haha I am in CA with a 2019 3.6 and havnt had to go through an “inspection” which is why I asked so I can understand what’s this thread is about.

 

[GtX]

Some state inspections just pull the obd data to determine if you pass out not.

If you recently reset the computer you'll fail if the computer hasn't completed the readiness checks.

 

[KrzybonesJLU]

Some state inspections just pull the obd data to determine if you pass out not.

If you recently reset the computer you'll fail if the computer hasn't completed the readiness checks.

Gotcha sounds like a California smog test. They run the obd2 and check all the sensors and all that.

 

[Gregj]

Click on quick diagnostic in the first screen of JScan and then click on tests and you will get the readiness tests.

You don’t even have to hook up the bypass.

This is the current test on my diesel Gladiator

Gregj

 

[dsgrey]

My cheap scanner shows if anything is in 'not ready' status. In Texas, a JL (newer vehicle) can pass with one code not ready. A recent battery disconnect caused two 'not ready' codes a few years back but I didn't realize until getting the inspection. Driving around 20 miles cleared one and the other had some odd sequence that apparently took weeks to clear but as stated, I was able to pass with one code 'not ready'.

 

[DaltonGang]

I just had to drive mine around for a few days, and put over 30 miles on it, to reset and pass inspection.

 

[Shibadog]

.....yearly State inspection.

Ok, I’ll bite. ( bear in mind I’m an old fart, and the 5 states I’ve lived in never had an inspection requirement) but why/how would changing a battery effect vehicle emissions? Engine mods ok, but changing a battery?

 

[SoK66]

As another flatulent senior citizen, I usually suggest people move before being subjected to the inspection monster.

 

[rk911]

Is there a way, using Jscan, or some other iphone software that is compatible with a Jscan ODB 2 compatible reader, to determine if my JL is ready to be inspected after swapping out the dual AGM batteries has reset the vehicle's systems of driving data?

If so, what software, if any, and what in that software would I be looking for to see that I have driven enough/done enough of the things one needs to do after swapping batteries to not fail inspection due to lack of driving history otherwise erased by the battery swap?

I'm of course ok to fail an inspection because of legitimate and fixable service items not related to the battery swap.

Stated in the converse what indications might show if the vehicle wasn't ready?

TIA

I've been told to drive ~100-miles after a battery replacement (or a jump start) before going for the emissions test (we don't have inspections in Illinois).

 

[AndySpill]

Ok, I’ll bite. ( bear in mind I’m an old fart, and the 5 states I’ve lived in never had an inspection requirement) but why/how would changing a battery effect vehicle emissions? Engine mods ok, but changing a battery?

https://www.jlwranglerforums.com/fo...tion-after-battery-change.127398/post-2667672

In most modern vehicles I'm aware of, denying the vehicle electrical power will reset the memory in the computer modules within the vehicle that store the testing results of various systems within the vehicle, including ones that might fail an inspection and need service before the vehicle could pass inspection.

In an effort to pass inspection, people who know of or fear these situations that might cause them to fail an inspection would be able to trick the inspection equipment into passing them by simply disconnecting the vehicle's power, whereafter such diagnostic history, including failed tests, would be lost.

Given this, the test is designed such that it's not the absence of failure of these tests in the vehicle's computer that will pass you, but the presence of passed tests, which get readministered as the operator puts some time and mileage on the vehicle after a battery change. Restated you can fail an inspection for failed or absent test results.

The criterion to get these tests conducted, let alone pass them, doesn't seem to be consistent among manufacturers (or States) and failing a test costs $. So I was looking for a way to know that there is sufficient test data in the vehicle's computer for the test to pass or fail, but at least be conducted when vehicle history data has first been recompiled.

Filed under lessons learned, the irony is that I replaced the batteries before the inspection to insure the vehicle wouldn't fail on a battery issue, but waited too long for warm weather, effecting the battery swap too close to bringing the JL into the dealer.

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