HOLDEN GEN III V8, Обучение по обслуживанию

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GEN III V8 ENGINE MANAGEMENT
DTC P0151 Heated Oxygen Sensor Circuit Low Voltage Bank 2 Sensor 1
Conditions for running DTC P0151
Criteria 1
• DTCs P0101, P0102, P0103, P0112, P0113,
P0117, P0118, P0121, P0122, P0123, P0335,
P0336, P0351, P0358, P1258 are not set.
• The coolant temperature is greater than 48°C.
• The ignition voltage is greater than 9.0 volts.
• The fuel system is operating in Closed Loop.
• The fuel trim learn is enabled.
• The air/fuel ratio is between 14.5: and 14.7:1.
• The TP angle is between 0% and 70%.
Conditions for setting DTC P0151
Criteria 1
• The H02S signal voltage remains below 200
mV.
• The Criteria 1 conditions are present for at least
33 seconds.
Criteria 2
• DTCs P0101, P0102, P0103, P0112, P0113,
P0117, P0118, P0121, P0122, P0123, P0335,
P0336, P0351, P0358, P1258 are not set.
• The ignition voltage is greater than 9.0 volts.
• The Power Enrichment mode is enabled for at
least 0.5 seconds.
Criteria 2
• The H02S signal voltage remains below 360
mV.
• The Criteria 2 conditions are present for at least
5.0 seconds.
Action taken when DTC P0151 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.
• Open Loop Fueling.
Conditions for clearing the Check Powertrain Lamp and DTC P0151
• The PCM turns the Check Powertrain Lamp OFF after one ignition cycle that the diagnostic runs and does
not fail.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
DTC P0152 Heated Oxygen Sensor Circuit High Voltage Bank 2 Sensor 1
Conditions for running DTC P0152
Criteria 1 Criteria 2
• DTCs P0101, P0102, P0103, P0112, P0113, • DTCs P0101, P0102, P0103, P0112, P0113,
P0117, P0118, P0121, P0122, P0123, P0335, P0117, P0118, P0121, P0122, P0123, P0335,
P0336, P0351 -P0358, P1258, are not set. P0336, P0351 -P0358, P1258 are not set.
• The ignition voltage is greater than 9.0 volts.. • The ignition voltage is greater than 9.0 volts.
• The fuel system is operating in Closed Loop. • Deceleration Fuel Cut-off mode is enabled for
• The fuel trim learn is enabled, greater than one second.
• The air/fuel ratio is between 14.5:1 and 14.7:1.
Conditions for setting DTC P0152
Criteria 1
• The H02S signal voltage remains above
775 mV.
• The Criteria 1 conditions are present for at least
33 seconds.
Criteria 2
• The H02S signal voltage remains above
540 mV.
• The Criteria 2 conditions are present for at least
five seconds.
Action taken when DTC P0152 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.
• Open Loop Fueling.
Conditions for clearing the Check Powertrain Lamp and DTC P0152
• The PCM turns the Check Powertrain Lamp OFF after one ignition cycle that the diagnostic runs and does
not fails.
• A last test failed (current DTC) clears when the diagnostic runs and does not fail.
Page - 54 GEN III V8 ENGINE MANAGEMENT