Check backup aid?

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Freightshaker

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Parking sensors

Easiest way to check it is to listen to it. The part that goes most often is the sensor in the bumper itself. The other main part is located behind the drivers side C-Pillar. When I say listen to it, seriously, you set the parking brake, put the ignition into the run position but DO NOT start it. Then you put your car in reverse and put your ear close to the sensor, it should make a slight clicking sound. If it does not, that is the bad sensor. My 04' has 4 sensors but I'm sure the 2 sensor system would be the same. I purchased my sensor on ebay for $13 with free shipping.
 
Hamfisted

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03EXPO4x4 said:
Mine only has 2? Its a 2003 5.4 4x4 eddie bauer

Click to expand...




There should be NO paint on the two visible sensor discs. If there is, someone did a crap job of repainting the rear bumper (for what reason ?). Take something and clean the paint off. Then do as previously posted and put the truck in reverse to arm the sensors and go to the back and listen to them. You can put your hand over the visible discs one at a time and see if they trigger. If they work correctly it's probably the hidden center sensor giving you the error.


-Mike
 
DRS1

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03EXPO4x4 said:
Mine only has 2? Its a 2003 5.4 4x4 eddie bauer



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Ditto... I guess that means we both have a radar sensor in the middle?


Genesis 2012 TAU 5.0
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DRS1

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How is the corrosion by the handle on the hatch?


Genesis 2012 TAU 5.0
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Kenko

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Bedrck47 said:
have the codes read

Parking Aid Module Diagnostic Trouble Code (DTC) Index — Navigator, Early Build Expedition DTC Description Source Action
B1299 Power supply sensor circuit short to ground Parking Aid Module Go To Pinpoint Test B .
B1342 ECU is defective Parking Aid Module CLEAR the DTCs. REPEAT the Parking Aid Module self-test. If DTC B1342 is retrieved again, INSTALL a new Parking Aid Module; REFER to Parking Aid Module . CLEAR all DTCs. REPEAT the self-test.
B2844 Ignition Voltage Out of Range Parking Aid Module Go To Pinpoint Test A .
C1700 Left rear sensor circuit failure Parking Aid Module Go To Pinpoint Test B .
C1703 Right rear sensor circuit failure Parking Aid Module Go To Pinpoint Test B .
C1983 Radar sensor fault Parking Aid Module Go To Pinpoint Test B .
C1984 Radar sensor circuit failure Parking Aid Module Go To Pinpoint Test B .
U2306 Transmission PRNDL Range Selected Status Invalid Parking Aid Module Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual.
Click to expand...
I know this is an old thread but I have a 06 limited and getting a B1299
Could you or someone please clarify how to do a pinpoint Test B?
I could grab a used module but I'm thinking the module isn't the issue.

The harness was severed at all 5 wires during a collision with a rear bumper replaced at the dealer through an insurance claim.

The tech did the cheap fix and spliced the wires and used heat shrink. I pulled loom back and inspected for more wire damaged and found none.
The parking aid function was restored for a couple of weeks then stopped again. It's been like this for years and I want to fix it so I don't have to cancel out the reminder every time I run the engine.
When I run a PAM module test with forscan the speaker beeps once but short to ground persists.
I've put tons of work in this damn expy from 2 timing jobs, a few years of Eaton supercharger, AC overhaul requiring pulling the dash multiple times an I just keep finding more issues and want to iron them all out.

Any help appreciated. Thanks
 
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