Conditions for Clearing the MIL/DTC

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

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.

DTC P0220

Step	Action	Values	Yes	No
Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Controls Connector End Views or Engine Control Module Connector End Views
1	Did you perform the Diagnostic System Check - Vehicle?	-	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Turn ON the ignition, with the engine OFF. Observe the throttle position (TP) sensor voltage with the accelerator pedal in the rest position with a scan tool. Does the scan tool indicate voltage less than the first value or greater than the second value?	0.27 V 4.67 V	Go to Step 4	Go to Step 3
3	Observe the Freeze Frame/Failure Records for this DTC. Turn OFF the ignition for 90 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. Does the DTC fail this ignition?	-	Go to Step 4	Go to Testing for Intermittent Conditions and Poor Connections
4	Turn OFF the ignition. Disconnect the throttle body harness connector. Turn ON the ignition, with the engine OFF. Observe the TP sensor 2 voltage parameter with a scan tool. Does the scan tool indicate that the TP sensor 2 voltage is more than the specified value?	4.8 V	Go to Step 5	Go to Step 12
5	Probe the TP sensor signal circuit with a test lamp connected to ground. Does the test lamp illuminate?	-	Go to Step 12	Go to Step 6
6	Observe the TP sensor 2 parameter with a test lamp still connected to the TP sensor signal circuit. Does the scan tool indicate that the voltage is less than the specified value?	0.25 V	Go to Step 7	Go to Step 11
7	Measure the voltage of the TP sensor 2 5-volt reference circuit with a DMM. Does the DMM indicate that the voltage is more than the specified value?	4.8 V	Go to Step 8	Go to Step 10
8	Turn OFF the ignition for 90 seconds. Allow the engine control module (ECM) to completely power down. This can be verified by the loss of communication on the scan tool. Measure the resistance from the low reference circuit of the TP sensor to the ECM case with the DMM. Is the resistance less than the specified value?	5Ω	Go to Step 9	Go to Step 14
9	Test the TP sensor low reference circuit for a short to ground. Did you find and correct the condition?	-	Go to Step 22	Go to Step 18
10	Does the DMM indicate that the voltage is less than the specified value on the TP sensor 2 5-volt reference circuit?	5 V	Go to Step 15	Go to Step 17
11	Test the TP sensor 2 signal circuit for an open or for high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 13
12	Test the TP sensor 2 signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 20
13	Test the TP sensor 2 signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 20
14	Test the TP sensor 2 low reference circuit for an open or for high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 20
15	Test the TP sensor 2 5-volt reference circuit for an open or for high resistance. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 16
16	Test the TP sensor 2 5-volt reference circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 20
17	Test the TP sensor 2 5-volt reference circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 22	-
18	Inspect for poor connections at the throttle body harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 19
19	Replace the throttle body assembly. Refer to Throttle Body Assembly Replacement . Did you complete the replacement?	-	Go to Step 22	-
20	Inspect for poor connections at the ECM harness connector. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition?	-	Go to Step 22	Go to Step 21
21	Replace the ECM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	-	Go to Step 22	-
22	Clear the DTCs with a scan tool. Turn OFF the ignition for 90 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 23
23	IMPORTANT: Be aware that repairing one individual condition may correct more than one DTC. Observe the Capture Info with a scan tool.Are there any DTCs that have not been diagnosed?	-	Go to Diagnostic Trouble Code (DTC) List - Vehicle	System OK