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Home >> Lexus >> 2007 >> ES 350 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC P0171 - P0604 >> DTC P050A, P050B: Cold Start Idle Air Control System Performance; Cold Start Ignition Timing Performance >> Typical Enabling Conditions
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Typical Enabling Conditions

P050A: 

TYPICAL ENABLING CONDITIONS - P050A

Battery voltage 8 V or more
Time after engine start 3 seconds or more
Starter OFF
ECT at engine start -10°C (14°F) or more
ECT -10°C to 50°C (14°F to 122°F)
Engine idling time 3 seconds or more
Fuel-cut OFF
Vehicle speed Less than 1.875 mph (3 km/h)
Time after shift position changed 1 second or more
Atmospheric pressure 76 kPa (570 mmHg) or more

P050B: 

TYPICAL ENABLING CONDITIONS - P050B

Battery voltage 8 V or more
Time after engine start 3 seconds or more
Starter OFF
ECT at engine start -10°C (14°F) or more
ECT -10°C to 50°C (14°F to 122°F)
Engine idling time 3 seconds or more
Fuel-cut OFF
Vehicle speed Less than 1.875 mph (3 km/h)