AC blower not working, key not releasing, shift lock in park

Tiny
ZIA BALOCH
  • MEMBER
  • 2005 CHEVROLET
  • 4.2L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
I am facing issue in my vehicle - trail blazer
I started my car and turn on AC but it was not start. Try twice remain same issue was not start. Then I decided to drive I found the shifter is lock in park and not move.
I turn off the ignition then found ignition key is not releasing.
I check the solenoid it is found okay. Ignition key assembly and change it but problem still same. I also check the break switch it's also fine. Cruse is working break light functioning.
i also check with tech2. No trouble alarm existing. When connecting tech2 system functioning well, it has remain same when tech2 removes.
I do not know what the exact issue is. Facing too much trouble. May any one help me.
Monday, February 13th, 2017 AT 9:12 AM

6 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,624 POSTS
Hi Zia

This sounds to me like it could be a voltage issue, please load test the battery by following this guide and get back to me.

https://www.2carpros.com/articles/car-battery-load-test

Please run this test and get back to us so we can continue helping you.

Best, Ken

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Friday, February 17th, 2017 AT 2:28 PM
Tiny
ZIA BALOCH
  • MEMBER
  • 10 POSTS
Thanks dear Ken,
I perform the test as your instruction, make headlight on for twenty minutes rather then fifteen minutes. And crank my car its found perfect with headlight on.
I also change the generator brushes month a go as preventive maintenance.
Battery new two years in this February.
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Monday, February 20th, 2017 AT 5:51 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,624 POSTS
Good job, I am thinking we need to check the transmission shifter cable. Raise the car safely,

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

And have someone move the shifter back and forth while looking at the level on the transmission to see if the cable has come apart not pushing the transmission completely into park.

Also what model is the car?

Please run this test and get back to us so we can continue helping you.

Best, Ken

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Monday, February 20th, 2017 AT 8:51 AM
Tiny
ZIA BALOCH
  • MEMBER
  • 10 POSTS
Hi dear ken

i check all the possibilities in my trail blazer which could cause the auxiliary power failure of my car, I checked the ends of transmission cable, check all the car electric supply connection which was found okay, just on thing which I observed when I done it the auxiliary power restored, which is the air conditioning module. I disconnect the supply reconnect it, then after some time delay power supply restored. I run my car for test fortunately I have some work out of my city I travel 3000km its work fine, but again its happened, day before yesterday I turn on ac its working after some time then stopped, I checked the connection of ac module open it check it with multi meter, its pretty good, my question is it is ac circuit or the ac module problem.
Please help my I totally exhausted need help from you.
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Sunday, March 12th, 2017 AT 1:07 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,624 POSTS
Hey Zia,

It sounds like it could be an electrical issue, please check out this guide and check all fuses in the PDC fuse box under the hood and get back to me.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please run this test and get back to us so we can continue helping you.

Best, Ken

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Monday, March 13th, 2017 AT 12:03 PM
Tiny
ZIA BALOCH
  • MEMBER
  • 10 POSTS
HI DEAR KEN.
AFTER LONG STRUGGLE PROBLEM DIAGNOSED.
THE ISSUE WAS AUXILIARY POWER COMMON GROUND IS FOUND SHORT.
IT'S SOLE BY DISCUSSING WITH ONE OF MY FRIEND. HE TOLD ME ONLY ONE THING IS POSSIBLE WHICH IS LAKE OF PROPER GROUND.
WE TRACE IT UNDER NEATH OF DASHBOARD IN DRIVER SIDE NEAR TAK 2 CONNECTOR,
WE CHECK FIRST THE POSITIVE SUPPLY AFTER WE CHECK THE GROUND.
IT'S OBSERVED AND RECTIFY now ALHAMDULLIAH IT'S GOOD AND I AM HAPPY, AND ALSO THANK YOU DEAR KEN FOR YOU VALUABLE GUIDE. BECAUSE I CROSS CHECK MY CAR OTHER SOME TEST WHICH CONFORM THAT WE ARE DOING BEST PRACTICE. AND RECTIFY AND DONE MANY TEST.
MY CAR PROBLEM IS SOLVED.
THANKS KEN
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Sunday, March 19th, 2017 AT 2:09 PM

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