Conditions for Clearing the MIL/DTC
- The DTC becomes history when the conditions for setting the DTC are no longer present.
- A history DTC is cleared after 40 consecutive malfunction free warm-up cycles.
- The PCM receives the clear code command from the scan tool.
DTC P0654
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Instrument Cluster Schematics | |||
| 1 | Did you perform the instrument panel cluster (IPC) Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Instrument Cluster |
| 2 |
|
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
| 3 |
|
Go to Step 5 | Go to Step 4 |
| 4 | Test the engine speed signal circuit for a short to voltage or for 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 the PCM connector. 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 a poor connection at the harness connector of the 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 PCM. Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement
in Engine Controls-6.0L (LG4).Did you complete the replacement? |
Go to Step 9 | - |
| 8 | Replace the IPC. Refer to Instrument Panel Cluster (IPC) Replacement . Did you complete the replacement? |
Go to Step 9 | - |
| 9 |
|
Go to Step 2 | System OK |