Conditions for Running the DTC

P0137 Lean Test Enable

• DTCs P0116, P0117, P0118, P0119, P0125 are not set.
• The Ignition 1 Signal parameter is between 10-18 volts.
• The modeled exhaust gas temp model is more than 250°C (482°F) for at least 90 seconds.
• The modeled exhaust gas temp model is less than 800°C (1,472°F).
• The time after engine start is less than 5.1 seconds.
• The engine coolant is more than 60°C (140°F) after last engine shut-down.
• The engine coolant at start is less than 40°C (104°F).
• DTC P0137 runs once per drive cycle when the above conditions are met for 2 seconds.

P0138 Rich Test Enable

• DTCs P0116, P0117, P0118, P0119, P0125 are not set.
• The Loop Status parameter is Closed.
• The Ignition 1 Signal parameter is between 10-18 volts.
• The modeled exhaust gas temp model is more than 250°C (482°F) for at least 90 seconds.
• The modeled exhaust gas temp model is less than 800°C (1,472°F).
• DTC P0138 runs the rich test continuously when the above conditions are met for 2 seconds.

P013A

• P0030, P0036, P0053, P0131, P0132, P0133, P0135, P0137, P0138, P0140, P0141, P0300, P2232, P2270, P2271 are not set.
• The system voltage is between 11-18 volts.
• The rear O2 sensor is active and has transitioned once from rich to lean.
• The modeled exhaust gas temperature is greater than 500°C (932°F).
• The primary air/fuel sensor is ready.

  THEN

• The decel fuel cut-off (DFCO) is active.
• The primary air/fuel sensor indicates lambda is greater than 3.
• This DTC runs each time the above conditions are met.

P013E

• DTCs P0030, P0036, P0053, P0131, P0132, P0133, P0135, P0137, P0138, P0140, P0141, P0300, P2232, P2270, P2271 are not set.
• The system voltage is between 11-18 volts.
• The rear O2 sensor is active and has transitioned once from rich to lean.
• The modeled exhaust gas temperature is greater than 500°C (932°F).
• The primary air/fuel sensor is ready.

  THEN

• The DFCO is active.
• The primary air/fuel sensor indicates lambda is greater than 3.
• This DTC runs each time the above conditions are met.

P0140

• DTCs P0116, P0117, P0118, P0119, P0125 are not set.
• The engine is running.
• The HO2S 2 heater is stable, and the estimated exhaust temperature was more than 250°C (482°F) for more than 90 seconds.
• The ignition voltage is more than 10.5 volts.
• The estimated exhaust temperature is less than 800°C (1,472°F).
• DTC P0140 runs continuously when the above conditions are met for 60 seconds.

P2232

• DTCs P0116, P0117, P0118, P0119, P0125 are not set.
• The engine is running.
• The HO2S 2 heater is stable, and the estimated exhaust temperature was more than 250°C (482°F) for more than 90 seconds.
• The ignition voltage is more than 10.5 volts.
• The estimated exhaust temperature is less than 800°C (1,472°F).
• DTC P2232 runs continuously when the above conditions are met for 60 seconds.

P2270

• DTCs P0036, P0037, P0038, P0137, P0138, P0140, P0141, P0443, P0458, P0459, P2232 are not set.
• The engine is running.
• The ignition voltage is more than 10.5 volts.
• The HO2S 2 has been in Closed Loop for more than 10 seconds.
• The DFCO is inactive.
• The engine air flow has been between 5.56-33.33 g/sec for more than 3 seconds, and is currently more than 9.72 g/sec.
• DTC P2270 runs continuously when the above conditions are met for 10 minutes.

P2271

• DTCs P0036, P0037, P0038, P0137, P0138, P0140, P0141, P0443, P0458, P0459, P2232 are not set.
• The engine is running.
• The ignition voltage is more than 10.5 volts.
• The HO2S 2 has been in Closed Loop for more than 10 seconds.
• The DFCO is inactive.
• The engine air flow has been between 5.56-33.33 g/sec for more than 3 seconds, and is currently more than 9.72 g/sec.
• DTC P2271 runs continuously when the above conditions are met for 10 minutes.