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Home >> Chevrolet >> 2007 >> Uplander Base, 3.9 W >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Theft Deterrent System >> Diagnostic Information and Procedures >> Security Indicator LED Inoperative

Security Indicator LED Inoperative

Security Indicator LED Inoperative

Step Action Yes No
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Arm the content theft system.
Does the security indicator LED illuminate?
Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3
  1. Turn OFF the ignition.
  2. Disconnect the body control module (BCM) connector containing the LED control circuit.
  3. With a fused jumper wire and appropriate terminal adapter, apply 12 volts to the security indicator control circuit.
Does the security indicator LED illuminate?
Go to Step 6  Go to Step 4 
4
  1. Disconnect the security indicator LED.
  2. Probe the ground side of the security indicator control circuit with a test lamp connected to B+.
Does the test lamp light?
Go to Step 5  Go to Step 8 
5 Test the security indicator LED control circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
Go to Step 11  Go to Step 7 
6 Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 11  Go to Step 9 
7 Inspect for poor connections at the harness connector of the security indicator LED. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 11  Go to Step 10 
8 Repair the open in the security indicator control ground circuit. Refer to Wiring Repairs .
Did you complete the repair?
Go to Step 11  -
9 Replace the BCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 11  -
10 Replace the security indicator LED. Refer to LED Indicator Replacement - Vehicle Security System .
Did you complete the replacement?
Go to Step 11  -
11 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3