| Locating the possible fault cause |
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| The following fault locations and fault types are present for the convenience data bus: |
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| Fault in the data bus system (factory convenience data bus) |
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| “Fault”: Data cannot be transmitted via the bus system |
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| “In one-wire mode”: No data can be transmitted on either of the two data bus wires (“CAN-Hi” or “CAN-Lo”) |
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| “No messages”“(Time out” for several control units) : No data has been received from one or more control units during the specified time-span. |
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| Control unit in the dash panel insert -J285- |
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| “No communication”: No data has been received from the control unit in the dash panel insert -J285- |
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| “Read out fault memory”:The control unit in the dash panel insert -J285- cannot transmit information due to a fault on an upstream component. |
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| Central control unit for the convenience system -J393- |
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| “No communication”: No data has been received from the central control unit for the convenience system -J393- |
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| “Read out fault memory”:The central control unit for the convenience system -J393- cannot transmit information due to a fault on an upstream component. |
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