Typical Enabling Conditions

Monitor runs whenever following DTCs not present

P0011 (VVT System 1 - Advance) P0012 (VVT System 1 - Retard) P0021 (VVT System 2 - Advance) P0022 (VVT System 2 - Retard)

P0031, P0032, P0051, P0052 (A/F sensor heater - Sensor 1)

P0037, P0038, P0057, P0058 (HO2 sensor heater - Sensor 2)

P0100 - P0103 (MAF meter)

P0115 - P0118 (ECT sensor)

P0120 - P0223, P2135 (TP sensor)

P0125 (Insufficient ECT for closed loop)

P0136, P0156 (HO2 Sensor - Sensor 2)

P0171, P0172 (Fuel system)

P0300 - P0308 (Misfire)

P0335 (CKP sensor)

P0340, P0341 (CMP sensor)

P0351 - P0356 (Ignitor)

P0500 (VSS)

P2196, P2198 (A/F sensor - rationality)

P2440 (A/R control valve stuck open)

P2441 (A/R control valve stuck close)

P2444 (AIP stuck ON)

P2445 (AIP stuck OFF)

P2A00, P2A03 (A/F sensor - slow response)

Battery voltage

11 V or more

Engine coolant temperature sensor

70°C (158°F) or more



Engine RPM

Less than 4,000 rpm

A/F sensor status


Fuel system status

Closed loop

A/F sensor monitor


Heated oxygen sensor monitor


Engine load

10 to 80 %

Mass air flow rate

6.0 to 35 g/sec

Estimated catalyst temperature

Front catalyst:

Rear catalyst: 400° to 760°C (752° to 1,400°F)

Shift position

4th or 5th (for M/T) 3rd, 4th or 5th (for A/T)

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