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Diagnostic Trouble Code: 0019
Diagnostic Trouble Code Name: Driver Deployment Loop Circuit Capacitance High
Vehicle Make: Holden
Vehicle Model: Commodore (VZ)
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:
Fuel Tank Pressure Sensor Circuit Intermittent
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0451-P0454
Circuit / System Description
The fuel tank pressure sensor measures air pressure or vacuum in the evaporative emission (EVAP) system. The engine control module (ECM) supplies a 5?V reference and a low reference circuit to the fuel tank pressure sensor. The fuel tank pressure sensor signal voltage varies depending on EVAP system pressure or vacuum. The controller also uses this fuel tank pressure signal to determine atmospheric pressure for use in the engine-off small leak test, DTC?P0442. Before using this signal as an atmospheric reference it must first be re-zeroed.
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