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Diagnostic Trouble Code: 029
Diagnostic Trouble Code Name: Left Front Window Motor 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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Please Note: The DTC Information provided has been randomly generated.
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Diagnostic Trouble Code Description:
Throttle Position Sensor 1 Circuit
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
Circuit / System Description
The throttle actuator control (TAC) system uses two throttle position (TP) sensors to monitor the throttle position. The TP sensors?1 and 2 are located within the throttle body assembly. Each sensor has the following circuits:
A 5-volt reference circuit
A low reference circuit
A signal circuit
Two processors are also used to monitor the TAC system data. Both processors are located within the engine control module (ECM). Each signal circuit provides both processors with a signal voltage proportional to throttle plate movement. Both processors monitor each other\\\'s data to verify that the indicated TP calculation is correct.
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