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Home >> Cadillac >> 2002 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1355 (Keyless Entry System) >> Diagnostic Information and Procedures >> Keyless Entry System Inoperative
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Keyless Entry System Inoperative

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Keyless Entry System Inoperative

Step Action Yes No
1 Did you perform the Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Remote Keyless Entry 
2
IMPORTANT: Inspect that the keyless entry transmitter is the correct model for the vehicle remote system. A wrong model transmitter will not activate the vehicle remote system.
Press each button of the transmitter one at a time.Does the system operate normally?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Lock and unlock the door locks using the controls inside the vehicle.
Do the locks operate properly?		 Go to Step 4  Go to Diagnostic System Check - Door Systems in Doors
4
  1. Perform the transmitter synchronization procedure. Refer to Transmitter Synchronization .
  2. Press each button of the transmitter one at a time.
Does the system operate normally?		 Go to Step 9  Go to Step 5 
5
  1. Reprogram the transmitter. Refer to Transmitter Programming 
  2. Press each button of the transmitter one at a time.
Does the system operate normally?		 Go to Step 9  Go to Step 6 
6
  1. Install a scan tool. Select BCM, Data Display, Door Locks, and monitor the remote lock, unlock, and panic command parameters.
  2. Press each button of the transmitter one at a time.
Does the appropriate scan tool parameter indicate Yes after each button is pressed?		 Go to Step 8  Go to Step 7 
7
IMPORTANT: The transmitter programming procedure must be performed whenever a transmitter is replaced. Refer to Transmitter Programming 
  1. Replace the transmitter.
  2. Press each button of the transmitter one at a time.
Does the system operate normally?		 Go to Step 9  Go to Step 8 
8
IMPORTANT: When replacing the BCM, perform the BCM programming procedure. Also program all transmitters. Refer to Transmitter Programming 
Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control Systems.Did you complete the replacement?		 Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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