Numbering of contacts of the connecting block of the ignition module of engines 1.0 l, 37 kW and 1.4 l, 50 kW
Checking the supply voltage of the ignition module
Engines 1.0 l, 37 kW and 1.4 l, 50 kW
1. Check battery voltage first. It must be at least 11.5 V.
2. Disconnect block 3 (see fig. Details of the ignition system of engines 1.0 l, 37 kW and 1.4 l, 50 kW) with wires from ignition module 1.
3. Connect a voltmeter to pins 2 (see fig. Numbering of contacts of the connecting block of the ignition module of engines 1.0 l, 37 kW and 1.4 l, 50 kW) and 4 connecting blocks of the ignition module.
4. Turn on the ignition. The voltmeter should show battery voltage. If the voltmeter shows 0, check for a wire break between terminals 4 of the block and «weight» and between pin 2 of the block and fuse no. 52.
5. Disconnect the injector wiring harness connector from the wiring harness (see subsection 2.7).
6. Connect a voltage indicator with LED to pins 1 and 4 of the ignition module block, then to pins 3 and 4.
7. Turn the engine over with the starter - the LED should flash in both cases. Otherwise, check the wiring for an open or short circuit.
8. If there is no open or short circuit in the wires, and the voltmeter connected to pins 2 and 4 shows 0, replace the engine control unit.
9. If there is no open or short in the wires and the voltmeter connected to pins 2 and 4 shows battery voltage, replace the ignition module.
ENGINES 1.4L, 55 AND 74 kW
1. Check battery voltage first. It must be at least 11.5 V.
2. Disconnect block 3 (see fig. Details of the ignition system of engines 1.4 l, 55 and 74 kW) with wires from ignition module 2.
3. Connect a voltmeter to pins 2 (see fig. Checking the supply voltage of the ignition module) and 4 connecting blocks of the ignition module.
4. Turn on the ignition. The voltmeter should show battery voltage. If the voltmeter shows 0, check for an open in the wire between terminal 2 of the block and the relay block and between contact 4 of the block and «weight».
5. Disconnect the injector wiring harness connector from the wiring harness (see subsection 2.7).
6. Connect a voltage indicator with LED to pins 1 and 4 of the ignition module block, then to pins 3 and 4.
7. Turn the engine over with the starter. The LED should flash in both cases.
8. If the voltmeter shows any voltage and the LED flashes, replace the ignition module. If the LED does not flash, check the wires for an open or short circuit.
9. If there is no open or short in the wires, replace the engine control unit.