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6E-146 Engine Control System (4JH1) DTC P0400 (Symptom Code 3) (Flash Code 32) Circuit Description • The ignition switch is ON. hPa and 1100 hPa. • The intake air temperature (IAT) is between 15°C (59°F) and 100°C (212°F). • The ECT is between 35°C (95°F) and 100°C (211°F).
Condition for Setting the DTC • The ECM detects that the MAF amount is 150 mg/strk lower than the desired MAF for 60 Action Taken When the DTC Sets • The ECM illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. • The ECM limits fuel injection quantity. 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 scan tool. Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section. • A sticking or intermittently sticking the EGR valve will cause this DTC to set. • Misrouted vacuum hoses will cause this DTC to set.
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 scan tool. Information with the scan tool. Is DTC P0100 (Symptom Code 7, 9, B or C) or Go to Applicable DTC Go to Step 3 3 1. Install the scan tool. coolant temperature to reach at least 60°C 4. Perform the EGR Solenoid Valve test with the scan tool. 5. Command the EGR Solenoid Valve ON and OFF with the scan tool while observing the Mass Air Does the MAF Sensor parameter decrease by at Go to Diagnostic Aids Go to Step 4 |