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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 19 (KEYLESS ENTRY SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESKEYLESS ENTRY SYSTEM INOPERATIVE
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Keyless Entry System Inoperative
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Keyless Entry System Inoperative
WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.
Keyless Entry System Inoperative Diagnostics
| 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 | Press each button on 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 - Vehicle in Vehicle DTC Information |
| 4 | Operate the rear compartment release using the controls inside the vehicle. Does the rear compartment release operate properly? |
Go to Step 5 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 5 |
IMPORTANT:
While viewing scan tool RKE data and pressing and releasing each button, Lock, Unlock, Trunk and Panic, one at a time on the transmitter the displayed data should cycle between ON and OFF.
|
Go to Step 6 | Go to Step 7 |
| 6 | Replace the transmitter battery. Refer to Transmitter Battery Replacement
. Did you complete the replacement? |
Go to Step 7 | - |
| 7 | View scanner data again for RKE Low Battery, what does the scanner display now, YES or NO? | Go to Step 8 | Go to Step 11 |
| 8 | Replace the transmitter. Did you complete the replacement? |
Go to Step 9 | - |
| 9 | Perform the programming procedure. Refer to Transmitter Programming
. Did the locks cycle to lock then unlock? |
Go to Step 11 | Go to Step 10 |
| 10 | Replace the BCM. Refer to Control Module References
in Computer/Integrating Systems for replacement, setup, and programming. 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 |
RENDER: 1.0x
NO RELATED
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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.