SFI SYSTEM, Diagnostic DTC:P0132

DTC Code DTC Name
P0132 Oxygen Sensor Circuit High Voltage Bank1 Sensor1

DESCRIPTION

Refer to DTC P0130 Click here.

DTC No. DTC Detection Condition Trouble Area
P0132

All of the following conditions are met (3 trip detection logic):


  • (1). Target lambda*1 is more than 0.995.

  • (2). Heated oxygen sensor output voltage is more than 3.5 V.

  • (3). Conditions (1) and (2) are met for 0.5 seconds or more.

  • (4). 100 seconds have elapsed since condition (3) was met and heated oxygen sensor dew point judgment*2 was completed.

  • Short in signal output circuit and power source circuit of heated oxygen sensor

  • Heated oxygen sensor

  • ECM

Tech Tips


  • *1: Target lambda value of the ECM.


    • Target lambda value is 1.0: stoichiometric air fuel ratio

    • Target lambda value is more than 1.0: lean control performed

    • Target lambda value is less than 1.0: rich control performed

  • *2: Condensation may form in the exhaust pipes after the engine is started and before the exhaust system has warmed up. If condensation exists, the sensor element may be damaged if the heated oxygen sensor heater is heated excessively.

    Therefore, the ECM will restrict the output of the heated oxygen sensor heater until it determines condensation is not forming in the exhaust pipes. Dew point judgment is when the ECM judges that condensation is no longer forming.

WIRING DIAGRAM

Refer to DTC P0130 Click here.

CONFIRMATION DRIVING PATTERN

CAUTION:

When performing the confirmation driving pattern, obey all speed limits and traffic laws.

DTC P0132 is detected when the vehicle is driven with a city driving pattern at an average vehicle speed of approximately 50 km/h (31 mph) for approximately 30 minutes.

CAUTION / NOTICE / HINT

Note


  • Perform idle learning after replacing the ECM Click here.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips


  • Sensor 1 refers to the sensor closest to the engine assembly.

  • Sensor 2 refers to the sensor farthest away from the engine assembly.

  • Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. INSPECT HEATED OXYGEN SENSOR

    A01VF29E13
    Text in Illustration
    *a

    Component without harness connected

    (Heated Oxygen Sensor)

    1. Disconnect the B37 heated oxygen sensor connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (+B) - 4 (OX1A) Always 10 kΩ or higher

    NG

    REPLACE HEATED OXYGEN SENSOR Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (HEATED OXYGEN SENSOR - ECM)


    1. Disconnect the B37 heated oxygen sensor connector.

    2. Disconnect the B97 ECM connector (for LHD).

    3. Disconnect the B101 ECM connector (for RHD).

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      B97-102 (OX1A) - B97-24 (HT1A) Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      B101-102 (OX1A) - B101-24 (HT1A) Always 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR