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Diagnostic Trouble Code: B1102
Diagnostic Trouble Code Name: Battery Voltage Low
Vehicle Make: Holden
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:
Cylinder 2 Injector Control Circuit Low Voltage
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC
P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265,
P0267, P0268, P0270, P0271, P0273, P0274, P0276, or P0277 for the 2.8L, 3.0L, 3.2L, or 3.6L engine (with LF1, LE0 and LY7)
Circuit / System Description
The engine control module (ECM) enables the appropriate fuel injector on the intake stroke for each cylinder. Ignition voltage is supplied directly to the fuel injectors. The ECM controls each fuel injector by grounding the control circuit with a solid state device called a driver. The ECM monitors the status of each driver. Each driver has a feedback voltage circuit which the ECM monitors. The injector control circuits are pulled-up to voltage within the ECM. The ECM can determine if a control circuit is open, shorted to ground or shorted to a voltage by monitoring the feedback voltage.
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