DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FKS) - Diagnostic Codes (6 Of 6) & Circuit Tests (1 Of 2) >> SFI System >> DTC P2237-11: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Ground; DTC P2237-12: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P2237-13: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Open; DTC P2237-16: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Below Threshold; DTC P2237-17: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Voltage Above Threshold; DTC P2237-1B: A/F (O2) Sensor Positive Current Control Bank 1 Sensor 1 Circuit Resistance Above Threshold; DTC P2240-11: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Ground; DTC P2240-12: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Short to Battery; DTC P2240-13: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Open; DTC P2240-16: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Below Threshold; DTC P2240-17: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Voltage Above Threshold; DTC P2240-1B: A/F (O2) Sensor Positive Current Control Bank 2 Sensor 1 Circuit Resistance Above Threshold; DTC P2251-11: O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Ground; DTC P2251-12: O2 Sensor Negative Current Control Bank 1 Sensor 1 Circuit Short to Battery; DTC P2254-11: O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Ground; DTC P2254-12: O2 Sensor Negative Current Control Bank 2 Sensor 1 Circuit Short to Battery [12/2019 - 10/2022] >> Typical Enabling Conditions

Typical Enabling Conditions

P2237, P2238, P2240 AND P2241

Monitor runs whenever the following DTCs are not stored P0010, P0020 (VVT oil control solenoid bank 1, 2)
P0011, P0021 (VVT system bank 1, 2 - advance)
P0012, P0022 (VVT system bank 1, 2 - retard)
P0013, P0023 (Exhaust VVT oil control solenoid bank 1, 2)
P0014, P0024 (Exhaust VVT system bank 1, 2 - advance)
P0015, P0025 (Exhaust VVT system bank 1, 2 - retard)
P0016, P0018 (VVT system bank 1, 2 - misalignment)
P0017, P0019 (Exhaust VVT system bank 1, 2 - misalignment)
P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater)
P0037, P0038, P0057, P0058, P0141, P0161, P102D, P105D (Heated oxygen sensor heater)
P0087, P0088, P0191, P0192, P0193 (Fuel pressure sensor (for high pressure side))
P00FE, P0441, P0443 (EVAP system)
P0101, P0102, P0103 (Mass air flow meter)
P0111, P0112, P0113 (Intake air temperature sensor)
P0116, P0117, P0118 (Engine coolant temperature sensor)
P011B (Engine coolant temperature/intake air temperature sensor correlation)
P0121, P0122, P0123, P0222, P0223, P2135 (Throttle position sensor)
P0125 (Insufficient coolant temperature for closed loop fuel control)
P0128 (Thermostat)
P0136, P0137, P0138, P0139, P013A, P013C, P0156, P0157, P0158, P0159, P0607 (Heated oxygen sensor)
P0171, P0172, P0174, P0175 (Fuel system)
P0201, P0202, P0203, P0204, P0205, P0206, P062D, P21CF, P21D0, P21D1, P21D2, P21D3, P21D4 (Fuel injector)
P0300 - P0306 (Misfire)
P0327, P0328, P0332, P0333 (Knock control sensor)
P0335, P0337, P0338 (Crankshaft position sensor)
P0340, P0342, P0343, P0345, P0347, P0348 (Camshaft position sensor)
P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust camshaft position sensor)
P0500 (Vehicle speed sensor)
P0657, P0658, P2102, P2103, P2111, P2112, P2119 (Throttle actuator)
P107B, P107C, P107D (Fuel pressure sensor (for low pressure side))
P11EA, P11EB, P11EC, P11ED, P11EE, P11EF, P11F0, P11F1, P219A, P219B, P219C, P219D, P219E, P219F, P21A0, P21A1 (Air-fuel ratio imbalance)
P1235 (High pressure fuel pump circuit)
P2228, P2229 (Atmospheric pressure sensor)
P2239, P2242, P2252, P2253, P2255 AND P2256

Monitor runs whenever the following DTCs are not stored None
P2237 AND P2240: OPEN CIRCUIT BETWEEN A1A+ AND A1A- / A2A+ AND A2A-

Estimated sensor temperature 450 to 550°C (842 to 1022°F)
Engine Running
Battery voltage 11 V or higher
Ignition switch ON
Time after ignition switch is off to ON 5 seconds or more
P2238 AND P2241: LOW ADMITTANCE

Estimated sensor temperature 700 to 800°C (1292 to 1472°F)
Engine coolant temperature 30°C (86°F) or higher (varies with engine speed)
Fuel cut Not executed
OTHERS

Battery voltage 10.5 V or higher
Ignition switch ON
Time after ignition switch is off to ON 5 seconds or more