How to repair the parking sensor module whose plate has the following RoHS code PR-B62-04 192507
Installed this parking sensor on my Hilux (with metal bumper) on dealer and within a short time ago, the LCD display had the following errors when driving in reverse: "E3" and "E4". These two sensors 3 and 4 stopped working.
Original Module
Opened the module and did some tests and found that the signal transformers (variable inductors with two windings) of sensors 3 and 4 were in problem, as they did not present continuity between (pins 4-6). I searched the internet for this signal transformer marked "UP 04" and found nothing.
There is no information or any other details about this device fount by internet.
Inductor Pinout
Decided to look for a similar module. The module has a label “P / N: PR-2332". Searched the internet and found some original modules from other GM vehicles with the same "P / N: 2332" and with the same pin out. Purchased one of these used GM modules and removed two signal transformers and replaced the ones that had a problem with my original module. The purchased module cannot be used here because of the firmware recorded on the microcontrollers are different.
GM module
On the GM module, the LCD display shows nothing and is only beeping according to the distance from the obstacle.
So, leave the tip here for anyone who has problems with the vehicle's parking module.
