Checking Mazda automatic transmission solenoids
Materials:
* Ohmmeter
* Solenoid connectors
Procedure:
1. Disconnect the battery:
* Disconnect the negative battery cable from the battery terminal.
2. Find solenoids:
* Automatic transmission solenoids are usually located on the transmission housing.
*Refer to your service manual for the exact location of the solenoids.
3. Disconnect the solenoid connectors:
* Disconnect the electrical connectors from each solenoid.
4. Check the resistance of the solenoids:
* Set the ohmmeter to resistance measurement mode.
* Connect one ohmmeter probe to the solenoid terminal and the other probe to the other terminal.
* Read the resistance value on the ohmmeter display.
5. Compare the readings with the technical specifications:
*Refer to the service manual for resistance specifications for each solenoid.
* Compare your readings with the technical specifications.
6. Interpretation of results:
*Normal reading: Resistance is within specifications. The solenoid is working fine.
*High readings: Resistance is well above specifications. The solenoid may be open.
*Low reading: Resistance is well below specifications. The solenoid may be shorted.
7. Additional check:
*If any abnormal readings are found, you can perform further testing by using an oscilloscope to observe the solenoid waveform while the engine is running.
Note:
*To accurately check the resistance of the solenoids, it is important to use an accurate ohmmeter.
* If you find faulty solenoids, they must be replaced with new ones.
* It is recommended that you seek professional help if you are unsure about the verification procedure.