Before diagnosing the ignition module, the engine control is necessary to ensure that in good condition are the other systems of the vehicle. Once you are sure convinced of the faults of the ignition, remove the installation of the ignition module and check the status of the essential elements.
When working with the ignition module, should smoothly disconnect the negative terminal wire from the battery, after having made a marking on it, and then disconnect the electrical harness from common reel-to-reel mechanism.
Then you need to Unscrew all fixing bolts and screws, thereby completing the removal of the body of the ignition module.
Then with the engine off the car, disconnect the entire Assembly of the ignition module and measure with an instrument, the resistance between the main contact terminals of the connector. After that you need to compare your measurements with the General requirements in the specifications.
If your car is seen a sharp decline, this indicates your device issues with a short circuit. Once you install the continuity of the wires can break to check the secondary circuit of the motor and measure the resistance between the outer terminals of the plugs.
The results of measurements, it is necessary to make a determination about the state of isolation in the system and if found the fault in the coil, the mechanism must be replaced.
After all management operations, the ignition module is made, you need to install them in reverse order, starting from the mounting bolts and ending with the tightening screws on the body of the plug.
Most important to follow the correct insertion of all of the circuit wiring, because there was a problem connecting immediately leads to a fault in the ignition module.
Advice 2: How to check ignition module VAZ 2115
On the correct operation of the ignition module depends not only on engine start, but also stable performance in all modes. To completely verify the integrity of this element of the ignition system, you need laboratory equipment. However, preliminary results can be obtained in field conditions.
Work, faulty ignition module ВАЗ2115
This electrical device that generates high (30000В) voltage and transmitting it to the spark plug. A number of car owners call this device a coil that is not quite true, because the last (2 pieces) included with the module. The first coil is "responsible" for 1, 4 cylinders, the second for 2, 3. Also in the module are a couple of switches. All elements are United under the plastic housing. Find the module under the hood is easy; it is approached by high-voltage wires. The main symptoms of incorrect operation of the module include power loss, it failures with a sharp set of speed, poor idle, idle cylinders (1, 4 or 2, 3). All these problems can be attributed to the ignition module under condition of serviceability of DS sensors, IAC, MAF.
Verification module ВАЗ2115
Prior to testing device to verify the health connected to the pad wires. This will require a tester. Take the disconnected pad, touch one probe of the instrument to the contact "A", the other to ground. Turn on the ignition and look at the scale of the tester: the voltage must be within 12V. His absence may indicate a malfunction of the fuse. In the next stage of testing pads take a test lamp, connect it between terminals "A", "b". Ask your assistant to turn a starter: the lamp will blink. If not, possible breakage in the wires leading to the contact "A". Do the same with the contact.
The easiest way to check the health of a module, replace it with a known good. But here there are nuances. The ignition module was completed with the first "Samara". In the later versions is the ignition coil, and the switch is in the ECU, so a separate module, as such, no. It is important to consider if you decide to use the car-donor.
Another way to check is to measure resistance. To do this, touch a tester probe to the pins of the module serve for connecting high-voltage cables; between contacts, leading to 1, 4 (2, 3) cylinders, the resistance will be in the range of 5.4 kω. If the resistance corresponds to norm, and the nature of the malfunction remains, use the "shake-up" module: tap lightly on the device when started up the engine. Changes in his work suggests a poor contact between the elements inside the body of the ignition module.