Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSTHEFT DETERRENT SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSECURITY INDICATOR ALWAYS ON OR FLASHING
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Security Indicator Always On or Flashing
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Security Indicator Always On or Flashing
Security Indicator Always On or Flashing
| Step | Action | Yes | No |
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to DIAGNOSTIC SYSTEM CHECK - VEHICLE |
| 2 | With a scan tool, command the security indicator ON, then OFF. Does the security indicator turn on and off with each command? |
Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
| 3 | Disconnect the body control module (BCM) connector containing the security indicator control circuit. Does the security indicator remain illuminated? |
Go to Step 4 | Go to Step 5 |
| 4 | Test the security indicator control circuit for a short to ground. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 6 |
| 5 | 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 9 | Go to Step 7 |
| 6 | Inspect for poor connections at the harness connector of the instrument panel cluster (IPC). Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
. Did you find and correct the condition? |
Go to Step 9 | Go to Step 8 |
| 7 | Replace the BCM. Refer to CONTROL MODULE REFERENCES
for replacement, setup, and programming. Did you complete the replacement? |
Go to Step 9 | -- |
| 8 | Replace the IPC. Refer to CONTROL MODULE REFERENCES
for replacement, setup, and programming. 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.