How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Jerry Your Own Question
Jerry
Jerry, Master Mechanic
Category: Transmissions
Satisfied Customers: 16993
Experience:  30+ years of practical experience in the automotive industry
2947720
Type Your Transmissions Question Here...
Jerry is online now
A new question is answered every 9 seconds

2004 Chevy blazer 4x4 will go into 4 low but not 4 gh. I

Customer Question

2004 Chevy blazer 4x4 will go into 4 low but not 4 high. I have changed push button shift and checked fuses
Submitted: 9 months ago.
Category: Transmissions
Expert:  Jerry replied 9 months ago.

Hello and welcome. My name is ***** ***** you for visiting the site.

.

Are you able to get any trouble codes from it by grounding the connector and watching the lights blink?

Customer: replied 9 months ago.

I do not have the vehicle I will check when it is here. I will contact you when I can pull codes. Thanks

Expert:  Jerry replied 9 months ago.

Thanks, ***** ***** me know what is shows and I should have the tests for it.

.

DTC Displaying

  1. Turn OFF the ignition for 10 seconds.
  2. Connect PIN 13 on the Data Link Cable (DLC) to a ground. The DLC is located in the cab under the instrument panel on the driver's side.
  3. Turn ON the ignition, with the engine OFF.
  4. Observe the transfer case shift control switch select buttons for flashing codes.

Important: If the transfer case shift control switch buttons all blink only once and then stop, no fault codes are stored in the transfer case shift control module.

  • When one DTC is stored in memory, that code will blink that number of times followed by a 3 second pause and then repeat.
  • If more than one code is stored, the first code will blink, followed by a 3 second pause and then the second code will blink.
  • This sequence will continue until PIN 13 on the DLC is no longer grounded.
Customer: replied 9 months ago.

I have not forgot I don't have the vehicle back yet will post when I can test it.

Expert:  Jerry replied 9 months ago.

Okay, thanks.