Dash-mouted parker sensor - Error 'E2' on the display

[adamlacey996]

Hi newbie Bong owner question. Just doing the early ownership essential mods as per some great threads on here but have a question about the dash-mounted reverse beeper.

I have it as a spare and when I power it up I get an error code of 'E2' - assume it because it's not detecting one or more for the sensors correctly.

Does anyone have a wiring diagram/legend or know if any aftermarket sensors are compatible?

Thanks in advance.
Adam

[gilly99]

I used to have one of those, at least it looked similar.... pretty sure code E2 means that two sensors on the rear bumper are not working. Think you should be able to de-pin/disconnect one by one to identify the suspects by a process of elimination.

[g8dhe]

Here is a copy of the circuit diagram

and yes as I recall the E2 indicates a problem with the the two inner rear sensors, I seem to remember getting it when I had something on the towbar blocking the acoustic view!

[adamlacey996]

I used to have one of those, at least it looked similar.... pretty sure code E2 means that two sensors on the rear bumper are not working. Think you should be able to de-pin/disconnect one by one to identify the suspects by a process of elimination.

Many thanks!

[adamlacey996]

Here is a copy of the circuit diagram
Screenshot 2025-05-07 101823.jpg
and yes as I recall the E2 indicates a problem with the the two inner rear sensors, I seem to remember getting it when I had something on the towbar blocking the acoustic view!

Thanks Geoff, going to ask a question that I'm sure has been answered already about identifying wire colours. To confirm its the B black, Y/G Yellow/Green, P Pink etc etc.

Thank again.

[g8dhe]

[adamlacey996]

Thanks again Geoff but I think I have very different wiring colours to your diagram. Assuming I’m reading it right

[adamlacey996]

This is what I have on the back of the unit. Bbfor neg is all I can match

[g8dhe]

Ah no, the colours in my table are the vehicle loom colours, the cables that run around the vehicle, enclosed in tape, wound around the loom. Once you break out from the loom then your into the local colours of the company that made the device, these vary from the Mazda ones and will also vary over time as there not controlled by Mazda themselves. Anything within the rectangular box on my diagram is down to the supplier of the device, the Mazda colours stop at the connector for the loom. This goes for all vehicle wiring the world over!