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EDC16 / P1604 31

Read the instructions below then start the fault diagnostic procedure.

  P1604 31


Internal Control Module Malfunction

On-board diagnosis

Fault criteria:

Control module on-board diagnostics has detected a EEPROM error.

Diagnostic help

Diagnosis regards:

To locate electrical faults in the control module internal electronics.
See document "Before removing a control module"

Functions in the diagnostic tool related to the fault:

See menu "All - Add/Remove"