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2003 Chevrolet Silverado 1500 5.3L Service 4X4 Light On
Posted to GM Transmission on 8/14/2015 8 Replies

This truck sets a code c0306 - Motor A/B circuit malfunction about 5 seconds after you turn the key on or start it. I have tested the power inputs and have battery voltage. I have .041 voltage drop on the ground circuit. Both the encoder motor and the TCCM hav...

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  Related Documents & Media  2003 Chevrolet Silverado 1500

 
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 1GCEK19T23
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedService 4X4 Light On
Message Closed w/FIX

car Vehicle Data

2003 Chevrolet Silverado 1500

VIN 1GCEK19T23
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedService 4X4 Light On