Diagnostic Trouble Code: 021
Diagnostic Trouble Code Name: Rear Defrost Request Switch Circuit
Vehicle Make: Chevrolet
Vehicle Model: Epica (V250)
Diagnostic Code Entered By: ZerOne
Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm
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Diagnostic Trouble Code Description:
Control Module Internal Performance
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTCP0601, P0602, P0603, P0604, P0605, P0606, P0607, P060E, P1600, P1621,
P1627, P1681, P1683, or P2610
Circuit / System Description
This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM). This diagnostic also addresses whether or not the ECM is not programmed.
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