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Diagnostic Trouble Code: 0020
Diagnostic Trouble Code Name: Driver Deployment Loop Circuit Capacitance Low
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:
Immobilizer Fuel Disable Signal Received
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P1632
Circuit / System Description
The body control module (BCM) sends the prerelease password to the engine control module (ECM) via the serial data circuit. The ECM then sends a challenge to the BCM. Both the ECM and BCM perform a calculation on this challenge. If the calculated response from the BCM equals the calculation performed by the ECM, the ECM will allow vehicle starting.
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