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P1523 Diagnostic Trouble Code Discussion for February 2012

ETC System Malfunction - Throttle Valve Stuck

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Trouble Ticket Help Requests for DTC P1523
Help Request Posted
2002 Chevrolet Trailblazer LS 4.2L No Start VIN: 1GNDT13SX2
P1523: TAC Module Return Performance. ... hot, after it sits for a while will start. Upon road test, to warm up vehicle i notice my temp gauge was not moving, and scanner was reading, 45 degrees f. Unpluged sensor and checked 5 volt ref., ok. Plugged sensor back in now gauge is working, and scanne...
February 07, 2012