Refer to Dtc P See page ES

DTC No.

DTC Detection Conditions

Trouble Areas

Condition (a) or (b) continues for 5.0 seconds or more (2 trip detection logic)

A/F sensor admittance: Less than 0.022 1/Q (2 trip detection logic)

• Open or short in Air-Fuel Ratio (A/F) sensor (sensor 1) circuit

• A/F sensor heater and relay circuits

• ECM

P2239

A1A+ voltage more than 4.5 V for 5.0 seconds or more (2 trip detection logic)

• Open or short in Air-Fuel Ratio (A/F) sensor (sensor 1) circuit

• A/F sensor heater and relay circuits

• ECM

P2252

A1A- voltage 0.5 V or less for 5.0 seconds or more (2 trip detection logic)

• Open or short in Air-Fuel Ratio (A/F) sensor (sensor 1) circuit

• A/F sensor heater and relay circuits

• ECM

P2253

A1A- voltage more than 4.5 V for 5.0 seconds or more (2 trip detection logic)

• Open or short in Air-Fuel Ratio (A/F) sensor (sensor 1) circuit

• A/F sensor heater and relay circuits

• ECM

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