Detailed Description of Error P079C
OBDII error code P079C is a generic transmission trouble code that indicates a problem with the transmission friction element ''C'' slip. This code is typically triggered when the transmission control module (TCM) detects an abnormal slip rate in the friction element ''C'', which can cause the transmission to malfunction or fail to engage gears properly.
The transmission friction element ''C'' refers to a specific clutch pack or band that is responsible for engaging and disengaging gears in the transmission. When the TCM detects a slip in this element, it will set the P079C code and illuminate the check engine light.
The P079C code can be caused by a variety of factors, including worn or damaged clutch packs, low transmission fluid levels, or faulty transmission solenoids. It''s essential to address this issue promptly to prevent further damage to the transmission.
Possible Causes of Error P079C
- Worn or damaged clutch packs or bands
- Low transmission fluid levels or dirty fluid
- Faulty transmission solenoids or solenoid pack
- Transmission control module (TCM) malfunction
- Incorrect transmission fluid type or viscosity
- Blockages or restrictions in the transmission fluid lines or passages
- Internal transmission damage or wear
Possible Fixes for Error P079C
- Check and top off transmission fluid levels
- Replace worn or damaged clutch packs or bands
- Replace faulty transmission solenoids or solenoid pack
- Update or reprogram the transmission control module (TCM)
- Flush and replace transmission fluid with the correct type and viscosity
- Inspect and clean or replace transmission fluid lines and passages
- Perform a transmission overhaul or rebuild if internal damage is found
