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International Automotive Technicians Network
Re: 2002 Impala Anti lock traction control
Posted to Technical Discussion Forum on 1/23/2007

Darryl

Possible cause of DTC 1216 are

A contaminated hydraulic unit. An intermittent wheel speed sensor. A sticking solenoid. Excessive brake drag or high resistance in base brake system. Suspension system irregularities. Login to read more.