P279B OBD-II: Transfer Case Gear Low Incorrect Ratio
P279B Severity
Will P279B go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P279B?
The Transfer Case locks together the front and rear differentials on a four wheel drive vehicle. Based on the driver's input, the transfer case allows for different torque outputs (4-wheel high or 4-wheel low)/ If the Transfer Case Control Module detects the Transfer Case is not providing the requested amount of torque, code P279B will be set.
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OBD II Fault Code
- OBD II P279B
OBD-II Code 4-wheel drive system is disabled is defined as a Transfer Case Gear Low Incorrect Ratio
The Transfer Case locks together the front and rear differentials on a four wheel drive vehicle. Based on the driver's input, the transfer case allows for different torque outputs (4-wheel high or 4-wheel low)/ If the Transfer Case Control Module detects the Transfer Case is not providing the requested amount of torque, code P279B will be set.
4-wheel drive system is disabled Symptoms
- 4-wheel drive system is disabled
Common Problems That Trigger the P279B Code
- Transfer case control module failure
- Transfer case internal failure
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