1. Check the initial conditions.
A) The battery voltage is not lower than 11 V.
b) Throttle valve fully closed.
V) Gear lever in neutral position (automatic transmission selector in position "R").
G) Accessory switches in off position (OFF).
d) The engine is warmed up to normal operating temperature.
2. Turn on the ignition, but do not start the engine. Indicator "CHECK ENGINE" should burn.
3. Jumper short the leads "T" And "E" ("5" And "13" for production models since 5 2000 or "11" And "13" for production models up to 5.2000) diagnostic connector DLC, while the malfunction indicator should go out and start flashing.
Note: if the indicator does not blink, then the diagnostic connector pins are not closed.
4. Read the diagnostic code by the number of indicator flashes "CHECK ENGINE" (deciphering diagnostic codes, see the table below " Diagnostic Trouble Codes for the Engine Management System").
A) Normal system operation (no fault).
The indicator lights up and goes out at 0.25 second intervals.
b) Fault code display.
If there is a fault, the indicator flashes every 0.5 seconds. The first sequence of flashes corresponds to the first number of the diagnostic code, which consists of two numbers. After a pause of 1.5 seconds, a second sequence of flashes is displayed, corresponding to the second number of the code. At "the presence of two or more fault codes, when outputting, an interval of 2.5 seconds is set between them.
After all codes are displayed, there is a pause of 4 seconds, and then they all repeat while the diagnostic connector pins are closed.
Note: in the case of several fault codes, their indication starts with a smaller code and continues in ascending order.
5. At the end of the diagnosis, disconnect the wire from the diagnostic connector and turn off the ignition.