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.
2003 Cadillac Escalade EXTFACTORY OEM SERVICE PROCEDURE
Theft Deterrent DTCS
THEFT DETERRENT DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC B2947 | Short To Ground On The Passlock Sensor Power Circuit |
| DTC B2948 | Security Sensor Signal Circuit |
| DTC B2957 | BCM Signal Input Low |
| DTC B2958 | BCM Signal Input Low |
| DTC B2960 | Valid But Different Code Value Than Previously Learned Form The Passlock™ Sensor |
| DTC B3031 | BCM Does Not See A Valid Passlock™ Sensor Code |
| DTC B3033 | BCM Is Reading A Tamper Code From The Passlock™ Sensor |
| DTC P1626 | PCM Has Not Established Communications With BCM |
| DTC P1631 | PCM Did Not Receive A Valid Password |
Factory Service Tools
Use the Manual With the Right Hardware
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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.