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.
Circuit/System Verification
- Ignition ON.
- Verify that DTC B101D is not set.
- If DTC B101D is set in K9 Body Control Module with symptom byte F0Β
- Verify that no other DTCs are set.
- If other DTCs are set, diagnose those DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- If no other DTCs are set
- Open the driver door to wake up the K9 Body Control Module.
- Ignition OFF, disconnect the battery negative cable and wait for 5 s.
- Reconnect the battery negative cable.
- Ignition ON, clear DTC B101D.
- Verify that DTC B101D is not set in K9 Body Control Module again.
- If the DTC sets, replace the K9 Body Control Module.
- If the DTC does not set
- All OK.
- If DTC B101D is set in K9 Body Control Module with any symptom byte except F0Β
Replace the K9 Body Control Module.
- If DTC B101D is set in other devicesΒ
Replace the device that set the DTC.
- If DTC B101D is not setΒ
- All OK
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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