Mercedes reverse sensor

can be front sensors --bad hub --damaged harness or or abs unit failing

tIME TO GET HER A BIKE.

No, the rear sensing system won't signal if you are in any gear except reverse. The wiring for the module is connected so that it turns on when you put the car in reverse. (This assumes the sensors haven't failed. If they are dirty, they can sometimes signal when an object isn't there.) Some newer cars have blind spot monitors that indicate an object approaching from behind and to the side; these don't indicate an object directly behind the car.

I hope this helps.

Cindy Wells

Hi there:
I would suspect it is the shifter not the cable or the transmission to rule out the trans from under the explorer on the drivers side near the pan is the shift linkage disconnect it by prying the ball and socket apart and rotate the lever through the gears to the rear is park then one forward is reverse then N,D,3,2,1 when pushing the lever into park it will feel spring loaded if the parking pawl is not perfectly lined up this will line up if it rolls a little bit DANGER DO NOT LET VEHICLE ROLL OVER YOU.





Other Concern: No Park Range Possible Component Reference/Action
256 - ELECTRICAL ROUTINE
Powertrain Control System
- No electrical concerns

356 - HYDRAULIC/MECHANICAL ROUTINE
Shift Cable/Digital TR sensor
- Cable system or digital TR sensor damaged, misaligned
- Inspect and repair as required. For shift cable information, refer to Section 307-05. For digital TR information, refer to Digital Transmission Range (TR) Sensor in this section.

Case
- Manual control lever assembly damage, manual valve inner lever pin bent, manual valve inner lever damaged, spring rod damaged
- Inspect for damage. If damaged, repair as necessary.

- Manual valve lever shaft retaining pin damaged
- Inspect for damage. If damaged, repair as necessary.

Park System
- Park gear, parking pawl, parking pawl return spring, park or guide plate, parking actuating rod, parking pawl shaft, manual lever, manual lever detent spring damaged or misassembled
- Inspect for damage. If damaged, repair as necessary.

- External linkages/brackets damaged
- Inspect for damage. If damaged, repair as necessary.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Have the RSS module checked for DTC'S - diagnostic trouble code's . That should always be the first step . An it is
Reverse sensing system Parking Aid The parking aid system consists of the:

• parking aid sensors
• parking aid speaker
• parking aid module

The parking aid system is activated when the parking aid module receives a network messages from the instrument cluster indicating that the vehicle is in reverse. The parking aid system sounds a warning to alert the driver of stationary objects near the rear bumper when REVERSE is selected. The parking aid system assists the driver in detecting certain objects while the vehicle moves in reverse at speeds less than 4.8 km/h (3 mph). The parking aid system may not detect angular or moving objects.

1. Visual Inspection Chart Electrical
   • Smart junction box (SJB) fuse 18 (10A)
   • Circuitry
   • Connector(s)
   • Parking aid sensors
   • Parking aid speaker
   • Parking aid module

Do you know what DTC'S are .

Parking Aid Module Diagnostic Trouble Code (DTC) Index DTC Description Source Action B1299 Power Supply Sensor Circuit Short to Ground Parking Aid Module Go To Pinpoint Test C . B1342 ECU is Faulted 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 in this section. CLEAR all DTCs. REPEAT the self-test. B2477 Module Configuration Failure Parking Aid Module REFER to Section 418-01 . C1699 Left Rear Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1700 Left Rear Sensor Circuit Failure or Blockage Parking Aid Module Go To Pinpoint Test C . C1701 Left Rear Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1702 Right Rear Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1703 Right Rear Sensor Circuit Failure or Blockage Parking Aid Module Go To Pinpoint Test C . C1704 Right Rear Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1705 Left Rear Center Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1706 Left Rear Center Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test D . C1707 Left Rear Center Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1708 Right Rear Center Sensor Circuit Short to Battery Parking Aid Module Go To Pinpoint Test D . C1709 Right Rear Center Sensor Circuit Failure Parking Aid Module Go To Pinpoint Test C . C1710 Right Rear Center Sensor Circuit Fault Parking Aid Module Go To Pinpoint Test E . C1742 Rear Sounder Circuit Failure Parking Aid Module Go To Pinpoint Test F . C1743 Rear Sounder Circuit Short to Battery Parking Aid Module Go To Pinpoint Test F . Your best bet , take it to a qualified repair shop . Ford

Try to clean rear parking sensors. Check also electric cables and connections, clean if necessary. Commons faults are sensors out of order. If one or more sensors faults you hear only a continous constant noise when you put in "R" gear. You need a VAS, VAG-COM, Bosch KTS, ... diagnosis scantool. The factory parking system will be scaned from errors with this instrument, and you will find exactly which sensors are out of order (for example: rear left center sensor, rear right side sensor break off, short to ground or short to plus).

Try to clean rear parking sensors. Check also electric cables and connections, clean if necessary. Commons faults are sensors out of order. If one or more sensors faults you hear only a continous constant noise when you put in "R" gear. You need a VAS, VAG-COM, Bosch KTS, ... diagnosis scantool. The factory parking system will be scaned from errors with this instrument, and you will find exactly which sensors are out of order (for example: rear left center sensor, rear right side sensor break off, short to ground or short to plus).

it sound like you broke the sun shell in the transmission.

this is pretty common with the 4l60e transmission, when the sun shell breaks you will lose reverse and fourth gear, the only remedy is to replace the transmssion or have it repaired, the repair will require the transmission be removed and disassembled, you will need to purchase a new sun shell (get a heavy duty replacement) and a papper rubber kit for the repair, the kit costs about $80.00 and the new sun shell is about $65.00, just find a good trans guy to provide the labor.

On the side of your transmission will be a switch with several wires coming out of it. This is your reverse switch that turns on your reverse lights and most likely needs to be replaced. The switch is just plug and play

I have an Audi A4 with factory fitted parking sensors that emit a long beep when reverse gear is selected (so this tells me I have a fault) where do I find the control box to remove a sensor at a time to find which one or more are faulty?