Conditions for Clearing the MIL/DTC

The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.

Step	Action	Values	Yes	No
Schematic References: Engine Controls Schematics in Engine Controls - 1.4L DOHC, Engine Controls Schematics in Engine Controls - 1.6L (L91) Engine Controls Schematics (European Emissions) or Engine Controls Schematics (Non European Emissions) in Engine Controls - 1.8L (L79, or Engine Controls Schematics in Engine Controls - 2.0L (L34) Connector End View References: Engine Controls Connector End Views in Engine Controls - 1.4L DOHC, Engine Control Module (ECM) Connector End Views in Engine Controls - 1.6L (L91)Engine Controls Connector End Views in Engine Controls - 1.8L (L79 or Engine Controls Connector End Views in Engine Controls - 2.0L (L34)
1	Did you perform the Diagnostic System Check - Engine Electrical?	-	Go to Step 2	Go to Diagnostic System Check - Engine Electrical
2	Start the engine. Raise the engine speed above 1,500 RPM. With a scan tool, observe the Ignition 1 voltage parameter in the Engine Control Module (ECM) data list. Is the voltage less than the specified value?	16.0 V	Go to Step 3	Go to Step 4
3	Observe the Freeze Frame/Failure Records data for this DTC. Turn OFF the ignition for 30 seconds. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. Did the DTC fail this ignition?	-	Go to Step 4	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
4	Measure the voltage at the battery with a DMM. Raise the engine speed above 1,500 RPM. Compare the voltage at the battery to the Ignition 1 parameter in the ECM data list. Is the battery voltage and Ignition 1 parameter readings different by more than the specified value?	0.5 V	Go to Step 5	Go to Charging System Test
5	Replace the ECM. Refer the appropriate procedure: Engine Control Module (ECM) Replacement in Engine Controls - 1.4L DOHC Engine Control Module (ECM) Replacement in Engine Controls - 1.6L (L91) Engine Control Module (ECM) Replacement in Engine Controls - 1.8L (L79) Engine Control Module (ECM) Replacement in Engine Controls - 2.0L (L34) Did you complete the replacement?	-	Go to Step 6	-
6	Clear the DTCs with a scan tool. Turn OFF the ignition for 30 seconds. Start the engine. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. Did the DTC fail this ignition?	-	Go to Step 2	Go to Step 7
7	Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed?	-	Go to Diagnostic Trouble Code (DTC) List in Engine Controls - 1.4L DOHC, Diagnostic Trouble Code (DTC) List in Engine Controls - 1.6L (L91)Diagnostic Trouble Code (DTC) List in Engine Controls - 1.8L (L79)Diagnostic Trouble Code (DTC) List in Engine Controls - 2.0L (L34)	System OK