The MPI control relay is located at the rear of the center console. When the ignition is turned on, it supplies power to the control unit.
1.5L engine
Remove the relay.
Connect an ohmmeter between the following contacts and measure the resistance:
- contacts 3-5: about 95 Ohm
- contacts 2-5: about 95 Ohm
- contacts 6-7: about 35 Ohm
- contacts 6-8: about 0 ohms (in one direction only).
Measure the resistance between contacts 1 and 4. The required value is ∞. If the resistance is 0, replace the control relay.
Connect battery voltage directly to contacts 6 and 7 using jumpers, as shown in Fig. Measure the resistance between contacts 1 and 4. The required value is ∞. If the resistance is 0, replace the control relay.
Attention: when connecting the battery, ensure correct connection, otherwise the relay may be damaged.
Connect the positive battery terminal and contact 8 with a jumper. Measure the resistance between contacts 2 and 4. The required value* is 0 Ohms. Remove the jumper, the resistance should now be equal to ∞. Otherwise, replace the control relay
Engines 1.6 / 1.8 l (16-valve)
Remove the relay and, using two wires, apply voltage from the battery directly to contacts 4 and 5, as shown in the figure. Measure the voltage at contacts 4 and 5. The required value is 12V.
Attention: when connecting the battery, ensure correct connection, otherwise the relay may be damaged.
Connect the battery ground to contact 6, and the battery positive to contact 9. Measure the resistance between contacts 2 and 3. The required value is 0 V. If the resistance is ∞, replace the control relay.
Connect the battery ground to contact 7, and the battery positive to contact 3. Measure the voltage at contact 2. Required value: 12 V.