HOLDEN GEN III V8, Service Training

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GEN III V8 ENGINE MANAGEMENT
A failure in the Camshaft Position Sensor or circuit will set one the of following DTCs:
DTC P0341 Camshaft Position Sensor Circuit Performance
Conditions for running the DTC P0341
• The ignition voltage is between 5.0 and 17.0 volts.
• The engine speed is greater than 400 RPM.
Conditions for setting the DTC P0341
• The PCM detects that a CMP to CKP mismatch has occurred for at least 1 0 seconds.
Action taken when the DTC P0341 Sets
• The PCM illuminates the Check Powertrain Lamp when the diagnostic runs and fails.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information
in the Freeze Frame/Failure Records.
Conditions for clearing the Check Powertrain Lamp and DTC P0341
• The PCM turns the Check Powertrain Lamp OFF when the diagnostic runs and does not fail.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
DTC P0342 Camshaft Position Sensor Circuit Low Voltage
Conditions for running DTC P0342
• The ignition voltage is between 5.0 and 17.0 volts.
• The engine speed is greater than 400 RPM.
Conditions for setting the DTC P0342
• The PCM detects the Camshaft Position Sensor signal is low when the signal should be high for at least one
second.
Action taken when the DTC P0342 Sets
• The PCM illuminates the Check Powertrain Lamp when the diagnostic runs and fails.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information
in the Freeze Frame/Failure Records.
Conditions for clearing the Check Powertrain Lamp and DTC P0342
• The PCM turns the Check Powertrain Lamp OFF when the diagnostic runs and does not fail.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
DTC P0343 Camshaft Position Sensor Circuit High Voltage
Conditions for running DTC P0343
• The ignition voltage is between 5.0 and 17.0 volts.
• The engine speed is greater than 400 RPM.
Conditions for setting DTC P0343
• The PCM detects the Camshaft Position Sensor signal is stuck high when the signal should be low for at
least one second.
Action taken when DTC P0343 Sets
• The PCM illuminates the Check Powertrain Lamp when the diagnostic runs and fails.
• The PCM records the operating conditions at the time the diagnostic fails. The PCM stores this information
in the Freeze Frame/Failure Records.
Conditions for clearing the Check Powertrain Lamp and DTC
• The PCM turns the Check Powertrain Lamp OFF when the diagnostic runs and does not fail.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
GEN III V8 ENGINE MANAGEMENT Page - 33