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.

DTC P0651

Step	Action	Values	Yes	No
Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Control Module (ECM) Connector End Views or Engine Controls Connector End Views
1	Did you perform the Diagnostic System Check - Vehicle?	-	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Observe the Freeze Frame/Failure Records for this DTC. 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. Does the DTC fail this ignition?	-	Go to Step 3	Go to Testing for Intermittent Conditions and Poor Connections
3	Turn OFF the ignition. Disconnect the throttle body electrical connector. Turn ON the ignition, with the engine OFF. Measure the voltage from the 5-volt reference circuit of the throttle position (TP) sensor 1 and 2 of the throttle body harness connector to a good ground with a DMM. Refer to Circuit Testing . Is the voltage within the specified range?	4.8-5.2 V	Go to Step 4	Go to Step 5
4	Connect the throttle body electrical connector. Disconnect the electrical connector of the accelerator pedal sensor module. Measure the voltage from the 5-volt reference circuit of accelerator pedal position (APP) sensor 1 to a good ground with a DMM. Refer to Circuit Testing . Is the voltage within the specified range?	4.8-5.2 V	Go to Step 9	Go to Step 11
5	Is the voltage measured in step 3 more than the specified value?	5.2 V	Go to Step 8	Go to Step 6
6	Monitor the DMM while disconnecting all other sensors connected to this 5-volt reference bus, one at a time. Does the voltage return to within the specified range when any of the sensors are disconnected?	4.8-5.2 V	Go to Step 10	Go to Step 7
7	Test the 5-volt reference circuits of all other sensors connected to this 5-volt reference bus for a short to ground or any sensor low reference circuit. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 13	Go to Step 12
8	Test all of the 5-volt reference circuits for a short to voltage. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 13	Go to Step 12
9	Test all of the 5-volt reference circuits for a short to the throttle actuator control (TAC) motor control 1 or 2 circuits. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition?	-	Go to Step 13	Go to Testing for Intermittent Conditions and Poor Connections
10	Replace the sensor that, when disconnected, caused the voltage to return to within the specified range. Did you complete the replacement?	4.8-5.2 V	Go to Step 13	-
11	Replace the throttle body assembly. Refer to Throttle Body Assembly Replacement . Did you complete the replacement?	-	Go to Step 13	-
12	Replace the engine control module (ECM). Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	-	Go to Step 13	-
13	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 14
14	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