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TROUBLESHOOTING MULTIPOINT FUEL INJECTION (MPI) 13A-17 NOTE: After the engine-ECU has detected a malfunction, the engine warning lamp illuminates when the engine is next turned on and the same malfunction is re-detected. However, for items marked with a " * 1" in the diagnosis code number column, the engine warning lamp illuminates only on the first detection of the mal- NOTE: The codes marked with a " * 2" in the diagnosis code number column have the following two conditions for illuminating the engine warning lamp. . • In case that the misfire causing the damaged catalyst is detected, the engine warning lamp will flash until • In case that the misfire deteriorating the exhaust gas is detected, the engine warning lamp is illuminated NOTE: Even if the malfunction is not detected when the engine-ECU monitors the malfunction three consec- *: In this case, "one time" in monitoring the malfunction means the period from the time of the current engine METHOD OF READING AND ERASING Refer to GROUP 00 − How to Use Troubleshoot- ing/Inspection Service Points − Diagnosis Function . INSPECTION WITH M.U.T.-III DATA LIST Reading data list or performing an actuator test using DIAGNOSIS PROCEDURE 1. Connect M.U.T.-III to perform inspection with the data list and actuator test function. 2. If any abnormality is found, inspect and repair vehicle body harnesses and components. 3. After repair, check that input and output have returned to normal. 4. If a failure code which is caused by inspection and repair work is generated, erase the failure 5. Disconnect M.U.T.-III and perform a test run to check that the malfunction phenomenon is PROVISIONAL DIAGNOSIS CODE CON- If detecting the malfunction during the first drive CONFIRMATION METHOD 1. After the ignition switch is in "LOCK" (OFF) posi- tion, connect the M.U.T.-III to the diagnosis con- 2. Turn the ignition switch to the "ON" position. Screen of the M.U.T.-III. 4. Select "Special Function" from MPI/GDI/DIESEL Screen. P2253 Oxygen sensor offset circuit high voltage U0101 *1 CVT-ECU time-out U0141 *1 ETACS-ECU time-out |