LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2004 >> Optra Base, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Keyless Entry System >> Diagnostic Information and Procedures >> Diagnostic System Check - Remote Keyless Entry >> Test Description

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 2:  Lack of communication may be due to a partial malfunction of the serial data circuit or due to a total malfunction of the serial data circuit. The specified procedure will determine the particular condition.
Step Action Yes No
1 Install a scan tool.
Does the scan tool power up?		 Go to Step 2  Go to Scan Tool Does Not Power Up in Data Link Communications
2 
  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to establish communication with the remote control door lock receiver (RCDLR).
Does the scan tool communicate with the RCDLR?		 Go to Step 3  Go to Scan Tool Does Not Communicate with Component in Data Link Communications
3 Select the ECM display DTCs function on the scan tool.
Does the scan tool display any DTCs?		 Go to Symptoms - Keyless Entry 
scientia non olet · About LEMON Manuals