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Diagnostic Trouble Code: B0087
Diagnostic Trouble Code Name: Left Rear Side Impact Sensor
Vehicle Make: Holden
Vehicle Model: Cruze (J300)
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:
Ignition Coil 4 Control Circuit
Possible Sensor Faults
ECM
Possible Related Diagnostic Trouble Codes
DTC P0351-P0358
Circuit / System Description
The ignition system on this engine uses an individual coil/module for each cylinder. The engine control module (ECM) controls the spark event for each cylinder through the eight individual ignition control (IC) circuits. When the ECM commands the IC circuit ON, electrical current will flow through the primary winding of the ignition coil, creating a magnetic field. When a spark event is requested, the ECM will command the IC circuit OFF, interrupting current flow through the primary winding. The magnetic field created by the primary winding will collapse across the secondary coil windings, producing a high voltage across the spark plug electrodes. The ECM uses information from the crankshaft position (CKP) sensor, and the camshaft position (CMP) sensor for sequencing and timing of the spark events. Each ignition coil/module assembly has the following circuits:
Ignition voltage
Ground
Ignition control (IC)
Low reference
If the ECM detects that the IC circuit has an incorrect voltage level, DTC?P0351-P0358 will set.
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