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 PCM receives the clear code command from the scan tool.

DTC P0608

Step	Action	Yes	No
Schematic Reference: Instrument Cluster Schematics
1	Did you perform the Vehicle Diagnostic System Check?	Go to Step 2	Go to Symptoms - Instrument Panel, Gages and Console
2	Install a scan tool. Raise the vehicles drive wheels. Refer to Lifting and Jacking the Vehicle in General Information. Start the engine. Place the transmission into drive. With the scan tool, observe the Vehicle Speed parameter in the ECM Engine Data 2 data list. Does the Vehicle Speed parameter match the speedometer display?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Turn OFF the ignition. Disconnect the engine control module (ECM) connector C1. Install one lead of the J 33431-C to the vehicle speed signal circuit at the ECM harness connector, and the other lead to a good ground. Turn ON the ignition, with the engine OFF. Set the J 33431-C to generate a speedometer signal. 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 in Wiring Systems. 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 engine control module (ECM). Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems. 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 in Wiring Systems. Did you find and correct the condition?	Go to Step 9	Go to Step 8
7	IMPORTANT: Program the replacement ECM. Replace the ECM. Refer to Engine Control Module (ECM) Replacement in Engine Controls.Did you complete the replacement?	Go to Step 9	-
8	IMPORTANT: Perform the set up procedure for the replacement IPC. Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement .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