|
|
Engine Control System (4JH1) 6E-71 P0110 (Symptom Code 1) (Flash Code 23) Circuit Description Condition for Running the DTC • The ignition switch is ON. Condition for Setting the DTC • The ECM detects that the IAT sensor signal voltage is more than 4.7 volts for 3 seconds. Action Taken When the DTC Sets • The ECM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. • The ECM uses an IAT substitution of 0 °C (32°F) for engine control. Condition for Clearing the MIL/DTC • The ECM turns OFF the MIL when the diagnostic runs and does not fail. • A history DTC clears after 40 consecutive driving cycles without a fault. Or clear with the Tech 2. Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section. • Use the Temperature vs. Resistance table to test the IAT sensor at various temperature levels to Notice: • The mass air flow (MAF) sensor is heated and as a result the IAT sensor may indicate a higher than DTC P0110 (Symptom Code 1) (Flash Code 23) Step Action Value(s) Yes No 1 Did you perform the Diagnostic System Check – — Go to Step 2 Go to Diagnostic System Check – Engine Controls 2 1. Install the Tech 2. 2. Turn ON the ignition, with the engine OFF. 3. Observe the Intake Air Temperature (IAT) Is the IAT parameter less than the specified value? -38 °C (-36°F) Go to Step 3 Go to Diagnostic Aids 3 1. Turn OFF the ignition. 2. Disconnect the mass air flow/intake air 3. Connect a DMM between the signal circuit of 4. Turn ON the ignition, with the engine OFF. Is the DMM voltage more than the specified value? 5.3 volts Go to Step 4 Go to Step 5 |