Initial Inspection and Diagnostic Overview

IGNITION E.C.U EZ 200 K





The EZ 200 K ignition E.C.U. (H75) incorporates an "AUTODIAGNOSTIC" feature which enables it to identify some of the eventual faults which may occur in the system during operation.

This is done through the indicator in the lower left corner of the instrument cluster (orange LED) (L32)

The number of blinks of this indicator will determine which component within the system is at fault.

Interpreting the LED (L32)

The different codes are transmitted by two series of blinks on the instrument cluster LED

- 1st series of blinks = tens digit
- 2nd series of blinks = units digit

EXAMPLE : defect code 2.3: LED ... X.X... X.X.X. ... ...... .........

As a safety measure, the E.C.U. will automatically retard the advance as soon as it records a defect. This retard will be reflected by a lack of power and performance of the engine.

Operation of the LED

Normal operation
- Ignition key "ON" LED ON
- Engine started LED OFF

If the LED remains ON or OFF : check its power supply and its ground

When the E.C.U registers a defect, the LED (L32) comes on at the instrument cluster
- It will stay on permanently if the engine speed is above 1550 rpm
- It will flash the code corresponding to the defect registered if the engine speed is below 1550 rpm

The engine must be at idle in order to interpret the defect code