FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Conditions



Internal Control Module. Malfunction.





Fault symptoms
- CHECK ENGINE.
- Engine will not start.

On-Board Diagnostics

Type of diagnosis:

- Once per driving cycle. Interrupted when fault criteria fulfilled or OK reported. Restarts next driving cycle.

Enable criteria:
- Ignition in ON position.

Fault criteria:
- Flash memory checksum error.

Dependents:
- None.

System reaction to a fault:
- Fuel shut-off

OK report:
- Flash memory checksum correct.

Fault handling: Fault Handling III, Other Emission-Related Comp. & Function
- Type III.

Diagnostic help
The flash memory has been incorrectly programmed, which means that the control module must be replaced if it cannot be reprogrammed.

Proceed to Diagnostic Procedures Changing Components