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 MANUALSBMW2006X3 (E83) (CANADA) L6-2.5L (M54)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULEDIAGRAMSDIAGRAM INFORMATION AND INSTRUCTIONSSIGNAL GLOSSARYSIGNAL NAMES WITH K
2006 BMW X3 (E83) (CANADA) L6-2.5L (M54)
Signal Names With K
2006 BMW X3 (E83) (CANADA) L6-2.5L (M54)SECTION Signal Names With K
K-BUS K bus
KAFA Seat switch, head restraint UP
KAT Catalytic converter too hot
KBFA Seat switch, head restraint DOWN
KEY Data exchange, send/receive module, EWS
KFN Coolant level too Low
KH+ AF signal, rear-compartment TV +
KH- AF signal, rear-compartment TV -
KISI Child safety-circuit switch
KO_R Compressor relay, pneumatic suspension
KS Auto-remote closing
KSIS Child safety-circuit switch, power windows
KU+ Driver, actuator clutch
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.