Description

Refer to DTC P2195 (see page ES-292).

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 A/F sensor (sensor 1) circuit

• Integration relay (EFI MAIN relay)

• A/F sensor heater and EFI MAIN relay circuits

• ECM

P2239

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

• Open or short in A/F sensor (sensor 1) circuit

• Integration relay (EFI MAIN relay)

• A/F sensor heater and EFI MAIN relay circuits

• ECM

P2252

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

• Open or short in A/F sensor (sensor 1) circuit

• Integration relay (EFI MAIN relay)

• A/F sensor heater and EFI MAIN relay circuits

• ECM

P2253

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

• Open or short in A/F sensor (sensor 1) circuit

• Integration relay (EFI MAIN relay)

• A/F sensor heater and EFI MAIN relay circuits

• ECM

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