ULTRASONIC REAR PARKING ASSIST DIAGNOSTIC Help!

[woscarr]

I'm trying to find the diagnostic connector in my 02 Silhouette according to info found on-line (automotive forums) it says...

"The diagnostic connector is an extra wire that is dangling free from the control unit itself. The control unti is on the passenger side of the van in the rear in front of the rear wheel well. That should get you the info you need. "

I searched high and low, meaning in the car jack compartment and under the van front/behind rear passenger wheel.

Do I need to remove interior panels !?


I'm getting the red flashing light. I've traced all the wires on the rear bumper, all appears ok.

Thanks for any help in advance.

Cheers
Wayne.

[bpopilek]

The unit is located in the vehicle behind a trim panel. I have an 03 and I found mine on the passenger side in behind the trim located directly behind the sliding door. If I remember I was able to remove a cup holder or storage compartment to access it without having to tear anything out. I can look again on mine if you still can find it.

[jasonsmeall]

I am having the same issue on a 2002 Montana Thunder. What do I look for?

[woscarr]

Hi again, I followed bpopiled directions and found the wire in question under the drink holder which easily pops out.

I ran the diagnostic and the two center sensors is where it says to look in my case.

Here's what I used..

Go HomeULTRASONIC REAR PARKING ASSIST DIAGNOSTIC




HOW TO "ENTER" DIAGNOSTIC MODE

To enter diagnostic mode, proceed as follows:

1. Short the rear parking assist diagnostic connector to ground while the vehicle is in PARK.
2. Turn the ignition ON.
3. Place foot on the brake.
4. Shift the vehicle into REVERSE within 5 seconds. If the vehicle is not shifted into reverse within 5 seconds after turning the ignition ON, the diagnostic mode will still be initiated. However, a reverse input wiring fault will be registered as shown in the Diagnostic Indicator table below.

When the diagnostic mode is first entered, the rear parking assist display displays the amber outside indicator and the red outside indicator. Then the indicators on the rear parking assist display will display one or more of the sequences in the table below to indicate where the fault exists within the rear parking assist system.

Diagnostic Indicators

State/Fault Location Amber Outside Amber Middle Red Outside
Start of Diagnostics ON OFF ON
RR Corner Object Sensor and Wiring ON OFF OFF
RR Middle Object Sensor and Wiring ON ON OFF
LR Middle Object Sensor and Wiring OFF ON ON
LR Corner Object Sensor and Wiring OFF OFF ON
Chime Warning Wiring OFF ON OFF
Reverse Input Wiring OFF FLASHES OFF
Sensor Supply Voltage Circuit and FLASHES FLASHES FLASHES
Sensor Low Reference Circuit

I got.. on on off and off on on

Cheers
Wayne.