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.
DTC B1603-00: CAN Bus OFF (B-CAN): General Description
Power Trunk Lid (PTL) System: It automatically opens and closes a vehicle's trunk lid and cinches the latch with the press of a button, and also can be easily operated, using an interior switch or a remote keyless entry remote. Power Trunk Lid (PTL) System can check the status of trunk lid opening and closing as well carry out a self diagnostic function by using CAN communication between PTM and Body control units (BCM, Cluster, SJB and so on).
NO RELATED
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.