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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 929 (KEYLESS ENTRY SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESKEYLESS ENTRY SYSTEM INOPERATIVE
1998 Chevrolet Suburban K2500, 7.4 J, Part Time

Keyless Entry System Inoperative

1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION 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 
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.