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Diagnostic Trouble Code: B0408
Diagnostic Trouble Code Name: Drivers Air Mix Door Motor Circuit
Vehicle Make: Holden
Vehicle Model: Commodore (VE)
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 Level High Primary
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTCP0463
Circuit / System Description
The fuel level sensor measures fuel level changes within the fuel tank and changes resistance based on fuel level. The powertrain control module (PCM) monitors changes in the resistance of the sensor to determine fuel level. When the fuel tank is full, the sensor resistance is high, and the PCM senses high signal voltage. When the fuel tank is empty, the sensor resistance is low, and the PCM senses a low signal voltage. The PCM uses inputs from the fuel level sensor to calculate the total fuel remaining in the fuel tank. This information is then sent to the Instrument, via the Class 2 serial data circuit and the powertrain interface module (PIM). When the PCM senses a signal voltage higher than the normal operating range of the sensor, this DTC sets.
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