DTC Descriptor
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- DTC P0642
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5 Volt Reference 1 Circuit Low Voltage
- DTC P0643
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5 Volt Reference 1 Circuit High Voltage
- DTC P0652
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5 Volt Reference 2 Circuit Low Voltage
- DTC P0653
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5 Volt Reference 2 Circuit High Voltage