Remote starter issues

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Apr 2, 2019 | 04:55 AM

4renerr

Thread Starter

Driver School Candidate

Joined: Aug 2017

Posts: 5

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From: New york

Remote starter issues

I have 2012 is250. When engine is cold remote cranks 3x but won’t turn over! Engine warm and it works. Had it reprogram and tact wire checked and problem still exists. Recently replaced battery so I’m thinking not enough charge from battery to start vehicle. Any thoughts?

Apr 2, 2019 | 05:46 AM

daddystop

Pole Position

Joined: Nov 2018

Posts: 217

Likes: 21

From: Austin, TX

What check engine lights do you have either on or stored in the ECU?

Apr 3, 2019 | 03:37 AM

4renerr

Thread Starter

Driver School Candidate

Joined: Aug 2017

Posts: 5

Likes: 0

From: New york

No engine light and No codes stored

Apr 3, 2019 | 04:51 AM

daddystop

Pole Position

Joined: Nov 2018

Posts: 217

Likes: 21

From: Austin, TX

I'd maybe clean your MAF with some approved cleaner for it. Do you have an OBD2 scanner that will let you look at your sensor values as seen by the ECU? This is usually an easy way to diagnose a failure of something like your coolant sensor.

Apr 23, 2019 | 07:32 PM

Lexyaaaas

Driver

iTrader: (2)

Joined: Dec 2018

Posts: 112

Likes: 9

From: Illinois

Pretty sure that car has an immobilizer? Might have something to do with that if you had to hide a key in there to bypass that. Maybe the hidden key battery died

Apr 24, 2019 | 07:11 AM

daddystop

Pole Position

Joined: Nov 2018

Posts: 217

Likes: 21

From: Austin, TX

The key fob doesn't have a battery that controls the immobilizer. It works via RFID which is a "passive" system requiring no power except from the RFID reader that is embedded in your keyswitch/steering column. I don't think this is a "key battery" issue.