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Home >> Volvo >> 2002 >> S80 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 1 Of 13) >> AEM-E003: Configuration Fault. Faulty Configuration (2001-2004) >> Faulty configuration >> General information >> General information

General information

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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 diagram 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. 

Also 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 



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 diagram 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. 

Also 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