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Diagnostic Trouble Code: B0086
Diagnostic Trouble Code Name: Front Passenger Side Impact Sensor Circuit
Vehicle Make: Chevrolet
Vehicle Model: Caprice (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:
Air Flow Circuit High Input
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTCP0103
Circuit / System Description
The mass air flow (MAF) sensor is an air flow meter that measures the amount of air entering the engine. The engine control module (ECM) uses the MAF sensor signal to provide the correct fuel delivery for all engine speeds and loads. A small quantity of air entering the engine indicates a deceleration or idle condition. A large quantity of air entering the engine indicates an acceleration or high load condition. The MAF sensor has the following circuits:
An ignition?1 voltage circuit
A ground circuit
A signal circuit
The ECM applies a voltage to the sensor on the signal circuit. The sensor uses the voltage to produce a frequency based on the inlet air flow through the sensor bore. The frequency varies within a range of near 2,000?Hertz at idle to near 11,500?Hertz at maximum engine load. If the ECM detects a frequency signal more than the possible range of a correctly operating MAF sensor DTC?P0103 sets.
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