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

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2004 Chevy blazer 4x4 will...
2004 Chevy blazer 4x4 will go into 4 low but not 4 high. I have changed push button shift and checked fuses
Submitted: 2 years ago.Category: Transmissions
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Answered in 32 minutes by:
2/18/2016
Transmission Mechanic: Jerry, Master Mechanic replied 2 years ago
Jerry
Jerry, Master Mechanic
Category: Transmissions
Satisfied Customers: 17,221
Experience: 30+ years of practical experience in the automotive industry
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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?

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Customer reply replied 2 years ago

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

Transmission Mechanic: Jerry, Master Mechanic replied 2 years 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.
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Customer reply replied 2 years ago

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

Transmission Mechanic: Jerry, Master Mechanic replied 2 years ago

Okay, thanks.

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