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NO FOBS DETECTED Message on DIC, No Crank/Start Unless Fob in Center Console Pocket or Remote Keyless Entry (RKE) button Inoperative (Replace Remote Control Door Lock and Theft Deterrent Receiver Asm)

Subject:"NO FOBS DETECTED" Message on DIC, No Crank/Start Unless Fob in Center Console Pocket or Remote Keyless Entry (RKE) Button Inoperative (Replace Remote Control Door Lock & Theft Deterrent Receiver Assembly)

Models:2005 Cadillac STS
Built PRIOR to VIN Breakpoint 50164913



This bulletin is being revised to update the Parts Information and include additional information about low battery voltage. Please discard Corporate Bulletin Number 04-08-52-008. (Section 08 -- Body and Accessories).


Condition

Some customers may comment on one or more of the following conditions:


Object Number: 1577801  Size: SH
    • " NO FOBS DETECTED" message displayed on Driver Information Center (DIC) and no crank/start unless fob is placed in the center console's fob/transmitter pocket.
    • Fob does NOT lock/unlock doors/trunk when button(s) is depressed.

Cause

This condition may be caused by low vehicle battery voltage. If the battery is not sufficiently charged (above 10 volts), the system will have difficulty detecting the fob. In this case, the RCDLR does not need to be replaced. Charge or replace the battery to eliminate this condition.

Alternately, this condition may be due to the signal from the Remote Keyless Entry (RKE) fob/transmitter not being properly detected by the Remote Control Door Lock and Theft Deterrent Receiver Assembly (RCDLR/Easy Key Module).

Correction

Replace the existing RCDLR module with P/N 15779423. Refer to the replacement procedures in this bulletin. In rare cases, the RF signal from an interfering device (radio tower, garage door opener, etc.) may be so strong that the center console's fob/transmitter pocket may still have to be used.

Removal Procedure

Tools Required
J 38778 Door Trim Pad Clip Remover

  1. Open the rear compartment lid.

  2. Object Number: 1577784  Size: MF
  3. Remove the rear compartment sill plate (1).
  4. Remove the LH and RH rear compartment side trim panel and cargo net retainers
  5. Remove the LH (2) and RH (3) rear compartment side trim panels
  6. Use J 38778 to remove only the four rearward retainers that secure the rear compartment upper/rear window shelf closeout trim panel (4).
  7. Lower the panel.

  8. Object Number: 1577791  Size: MF
  9. Carefully remove the RCDLR module (5) from the carrier located on the bottom side of the rear window panel.
  10. Important: Do NOT push coaxial connector into module. To remove, squeeze the connector at the center then pull out.

  11. Disconnect the module electrical connectors.
  12. Remove the existing module from the vehicle.

Installation Procedure

  1. Connect the new Remote Control Door Lock & Theft Deterrent Receiver Assembly (RCDLR), P/N 15779423, to the electrical connectors.

  2. Object Number: 1577791  Size: MF
  3. Carefully install the RCDLR module (5) to the carrier located on the bottom side of the rear window panel.

  4. Object Number: 1577784  Size: MF
  5. Raise the rear compartment upper/rear window shelf closeout trim panel (4).
  6. Install the four rearward retainers that secure the panel.
  7. Install the LH (2) and RH (3) rear compartment side trim panels.
  8. Install the LH and RH rear compartment side trim panel and cargo net retainers.
  9. Install the rear compartment sill plate (1).
  10. Close the rear compartment lid.
  11. Perform steps 1-4 of the Remote Control Door Lock Receiver Programming and Setup procedure. Refer to Programming and Setup in the Vehicle Control Systems sub-section of the Service Manual or SI document  1459287.

Parts Information

Part Number

Description

15779423

Receiver Asm-Remote Control DR LK & Theft Deterrent

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

R9706*

Module - Remote Control Door Locking & Theft Deterrent - Replace

0.5 hr

*This is a unique labor operation for bulletin use only. It will not be included in the Labor Time Guide.