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Home >> Cadillac >> 2007 >> CTS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 426 (Keyless Entry System And Remote Functions) >> Diagnostic Information and Procedures >> Keyless Entry System Inoperative (Passive)
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Keyless Entry System Inoperative (Passive)

WARNING: This page is about a different car, the 2007 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Keyless Entry System Inoperative (Passive)

Step Action Yes No
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2 Approach the vehicle with the key fob and attempt to open each door and the rear compartment.
Do all doors and the rear compartment open?		 Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Do any doors or the rear compartment open? Go to Step 4  Go to Step 5 
4
IMPORTANT: The voltage signal sent by the remote control door lock receiver (RCDLR) to the passive antenna is a AC voltage signal. The DMM must be set on AC voltage setting to record the voltage pulse to the passive antenna.
IMPORTANT: Use a DMM to record the voltage pulse using the MIN MAX setting to capture the AC voltage pulse to the passive antenna.
IMPORTANT: The ignition start button must be pressed to produce the voltage pulse to the passive antenna.
  1. Disconnect the keyless entry antenna at the inoperative door or rear compartment.
  2. With the DMM measure/capture for an AC voltage signal between the keyless entry antenna power circuit and the ground circuit.
Was an AC voltage signal captured on the DMM?		 Go to Step 7  Go to Step 6 
5 Test the passive portion of the transmitter:
  1. Turn on the J 43241  Keyless Entry Tester
  2. Place the transmitter on the J 43241  test pad.
  3. With the J 43241  in hand, approach the vehicle and attempt to open each door and the rear compartment.

Does the J 43241  beep during each entry attempt?		 Go to Step 8  Go to Step 9 
6 Test both the keyless entry antenna power and ground circuit for an open or short to ground. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 14  Go to Step 8 
7 Inspect for poor connections at the affected keyless entry antenna. Refer to Testing for Intermittent Conditions and Poor Connections andConnector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 14  Go to Step 12 
8 Inspect for poor connections at the RCDLR. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 14  Go to Step 13 
9 Replace the transmitter battery. Refer to Transmitter Battery Replacement .
Did you find and correct the condition?		 Go to Step 14  Go to Step 10 
10 Replace the transmitter.
Did you complete the replacement?		 Go to Step 11  -
11 Perform the programming procedure. Refer to Transmitter Programming (Domestic and Japan)  or Transmitter Programming (Export - Including Canada) .
Did the driver information center (DIC) beep and display a message ready for next fob?		 Go to Step 14  Go to Step 13 
12 Replace the affected keyless entry antenna.
Did you complete the replacement?		 Go to Step 14  -
13 Replace the RCDLR. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?		 Go to Step 14  -
14 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 3 
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