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.
Keyless/Power Door Locks/Security
/Power Door Locks/Security Keyless/Power Door Locks/Security KEYLESS/POWER DOOR LOCKS/SECURITY DIAGNOSTIC TROUBLE CODE (DTC) INDENTIFICATION DTC Description DTC B1026 Passenger's Door Lock Switch Signal Error DTC B1127 Driver's Door Key Cylinder Switch Malfunction DTC B1128 Driver's Door Lock Switch Signal Error DTC B1129 Driver's Door Lock Knob Switch Signal Error DTC B1144 Abnormal Signal from Keyless Receiver Unit
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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