DTC Descriptor
WARNING: This page is about a different car, the 2017 GMC Yukon XL, 2017 GMC Yukon, 2017 Chevrolet Tahoe, and 2017 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This procedure may also diagnose malfunctions that are not detected by a DTC.
- DTC P17D4
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Transfer Case Neutral Range Detected in High or Low Range - If equipped
- DTC P185F
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Transfer Case Shift Pending Signal Not Plausible - If equipped
- DTC P279A
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Transfer Case High Range Incorrect Ratio
- DTC P279B
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Transfer Case Low Range Incorrect Ratio - If equipped
- DTC P279C
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Four Wheel Drive (4WD) Neutral Range Performance - If equipped