Conditions for Clearing the MIL/DTC

The history DTC clears after 40 malfunction free warm-up cycles.
The DTC becomes history when the conditions for setting the DTC are no longer present.
The powertrain control module (PCM) receives the clear code command from the scan tool.

DTC P0608

Step	Action	Yes	No
Schematic Reference: Instrument Cluster Schematics Connector End View Reference: Engine Control Module Connector End Views for the 4.4L engine or Engine Control Module Connector End Views for the 4.6L engine
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle
2	Install a scan tool. Raise the vehicles drive wheels. Refer to Lifting and Jacking the Vehicle . Start the engine. Place the transmission into drive. With the scan tool, observe the Vehicle Speed parameter in the engine control module (ECM) Engine Data 2 data list. Does the Vehicle Speed parameter match the speedometer display?	Go to Testing for Intermittent Conditions and Poor Connections	Go to Step 3
3	Turn OFF the ignition. Disconnect the ECM connector C1. Install one lead of the J 33431-C Signal Generator and Instrument Panel Tester to the vehicle speed signal circuit at the ECM harness connector, and the other lead to a good ground. See Special Tools . Turn ON the ignition, with the engine OFF. Set the J 33431-C to generate a speedometer signal. See Special Tools . Does the vehicle speedometer indicate approximately 55 MPH?	Go to Step 5	Go to Step 4
4	Test the vehicle speed signal circuit for the following: An open A short to voltage A short to ground Refer to Circuit Testing and to Wiring Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 6
5	Inspect for poor connections at harness connector of the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 7
6	Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs . Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	Replace the ECM. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9	-
8	Replace the IPC. Refer to Control Module References for replacement, setup, and programming. Did you complete the replacement?	Go to Step 9	-
9	Use the scan tool in order to clear the DTCs. Operate vehicle within the Conditions for Running this DTC. Does the DTC reset?	Go to Step 2	System OK