With Flash Codes

ON-BOARD DIAGNOSIS

Critical emission control relevant faults, which do not impair handling of the car, are displayed in the instrument cluster by the "Check Engine" control lamp coming on and staying on continuously.

Four different faults will be detected while driving or operating the car. They can be read out with the help of a flashing code prior to starting the engine with the ignition key in "ignition on" position.

The fault lamp will then be switched off and on in accordance with the fault number (see diagram).

Fig. 69 On-board Diagnostic chart:

Code 1 = Faulty air flow sensor
Code 2 = Faulty oxygen sensor
Code 3 = Faulty engine temperature sensor
Code 4 = Faulty idle speed switch

A fault is cancelled in the memory after repairing automatically after the engine has bean started five or at the most ton times.