General information

In order to check the control area network (CAN) cables, the resistance in the network must be measured. The resistance between the two controller area network (CAN) wiring, with the network connected 60 Ω. The resistance can differ depending on the configuration of the car. Permitted values are 55-65 Ω. This applies to both the high speed side network and the low speed side network.

HINT: Use the wiring diagrams to provide support when taking readings. Take a copy of the data communication side for each model. Note which diagnostic trouble codes (DTCs) are stored in each control module. This facilitates fault-tracing considerably. 

Check if the diagnostic trouble codes (DTCs) for failed communication are stored in the central electronic module (CEM). If this is the case, first fault-trace according to these diagnostic trouble codes (DTCs).

Other information 

• For general information about fault-tracing the control area network (CAN), see General information about fault-tracing in the CAN network

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  Refer to Checking the resistance of the control area network (CAN) cables