P064F GMC - Control Module Long Term Memory Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Transfer Case Control Module
  • Transfer Case Control Module harness is open or shorted
  • Transfer Case Control Module circuit poor electrical connection

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P064f Gmc Description

This is an internal fault detection of the transfer case control module. This fault is handled inside the transfer case control module. No external circuits are involved.

At each power-up, the transfer case control module runs a self-test on the following:

- EEPROM Checksum

- ROM Checksum

- RAM Checksum

- RAM Malfunction

- Missing, incorrect or invalid software

OBDII Code P064f Gmc - Control Module Long Term Memory Performance - AutoCodes.com

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P064F GMC Comments

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