Location of the reverse sensor on Nissan Almera with automatic transmission
1. Disconnect the battery. This is necessary to ensure safety when performing any work related to electricity.
2. Locate the reverse sensor. It is usually located on the transmission housing, towards the rear of the vehicle. The sensor is a small electrical component with one or two wires.
3. Check the wires. Make sure the wires to the reverse sensor are securely connected. If there is any damage or corrosion, it will need to be repaired or replaced.
Types of reverse sensors
Nissan Almera with automatic transmission uses several types of reverse sensors:
* Mechanical sensor: Operates by mechanically actuating a contact when reverse gear is engaged.
* Electrical sensor: Operates by closing an electrical circuit when reverse gear is engaged.
*Speed Sensor: Works by measuring the rotational speed of the driveshaft and sending a signal to the transmission control module to determine whether reverse gear is engaged.
Diagnostics of the reverse sensor
To diagnose the reverse sensor:
1. Check the fuse. Locate the fuse for the reverse sensor in the fuse box and check that it is working properly.
2. Check wiring. Check the wiring from the sensor to the transmission control module for any damage or malfunction.
3. Use a multimeter. Use a multimeter to check the electrical resistance of the reverse sensor. The resistance should be from 0 to 10 ohms when reverse gear is engaged and from infinity to 0.5 megohms when reverse gear is off.
Replacing the reverse sensor
If the reverse sensor is faulty, it must be replaced. To do this:
1. Disconnect the battery.
2. Remove the reverse sensor. Carefully remove the sensor from the transmission housing.
3. Install a new sensor. Lubricate the new sensor gasket and install it in place.
4. Connect the battery.
5. Check the sensor operation. Shift into reverse and make sure the reverse lights come on.