Fault Condition: The Electronic Malfunction Lamp (EML) will turn on and PID 354 will set when the EMS Module senses that the Intake Air Temperature and Humidity (IATH) Sensor signal voltage is less than 0.4 volts or greater than 4.2 volts. If the Intake Air Temperature and Humidity (IATH) Sensor voltage returns to between 0.4 volts and 4.2 volts, the fault will become inactive. Note: To ensure that condensation on the sensor has been removed, diagnostics can only be performed after the engine has run for 5 minutes or more. Run the engine for 5 minutes or more and then...

Fault Condition: The Compressor Discharge Temperature code will set if the calculated discharge temperature has exceeded 446°F (230°C) for 25 seconds. The fault will become inactive if the calculated compressor discharge temperature is below 410°F (210°C). Engine power may be reduced when the calculated compressor discharge temperature exceeds 446°F (230°C). This temperature fault code can only be set while the vehicle is driven. Higher horsepower engines may generate excessive compressor discharge temperatures. Refer to message status information rather than fault codes for this situation. Possible repairs: 1) Verify that code PID 404 is set. If code PID 404 is not...

Fault Condition: Code PID 412 will set with FMI 0 if the EGR ECU detects the exhaust gas temperature exceeds 365°F (185°C) for 30 minutes, 410°F (210°C) for 25 seconds or 455°F (235°C) for 3 seconds. Code PID 412 will set with FMI 3 if the EGR ECU detects a short circuit to voltage in the exhaust gas temperature probe circuit. Code PID 412 will set with FMI 4 if the EGR ECU detects a short circuit to ground in the exhaust gas temperature probe circuit. Code PID 412 will set with FMI 5 if the EGR ECU detects an...

Fault Condition: Code PID 412 will set with FMI 0 if the EGR ECU detects the exhaust gas temperature exceeds 365°F (185°C) for 30 minutes, 410°F (210°C) for 25 seconds or 455°F (235°C) for 3 seconds. Code PID 412 will set with FMI 3 if the EGR ECU detects a short circuit to voltage in the exhaust gas temperature probe circuit. Code PID 412 will set with FMI 4 if the EGR ECU detects a short circuit to ground in the exhaust gas temperature probe circuit. Code PID 412 will set with FMI 5 if the EGR ECU detects an...

Fault Condition: Code PID 412 will set with FMI 0 if the EGR ECU detects the exhaust gas temperature exceeds 365°F (185°C) for 30 minutes, 410°F (210°C) for 25 seconds or 455°F (235°C) for 3 seconds. Code PID 412 will set with FMI 3 if the EGR ECU detects a short circuit to voltage in the exhaust gas temperature probe circuit. Code PID 412 will set with FMI 4 if the EGR ECU detects a short circuit to ground in the exhaust gas temperature probe circuit. Code PID 412 will set with FMI 5 if the EGR ECU detects an...