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U1000 Diagnostic Trouble Code Discussion for November 2011

Class 2 Communication Malfunction

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Trouble Ticket Help Requests for DTC U1000
Help Request Posted
2001 Chevrolet Malibu LS 3.1L No Start, Stall VIN: 1G1NE52JX1
U1000: Class 2 Communication Malfunction. ... second. Theft light stays illuminated. Radio, some guages, power locks, and trunk release don't work. No comm with BCM. Mitchell wiring info is WRONG! It led me to believe the ignition switch was bad on one circuit. Replaced the switch. Did not do the lock...
November 08, 2011