Checking cables

Check RTI control module and display connectors for contact resistance and oxidation according to Contact resistance and oxidation .

Check cable between control module #A12 and display terminal 5 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Check the cable between the control module #A28 and display terminal 8 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Check the cable between the control module #A27 and display terminal 7 for an open-circuit according to Open-circuit, permanent faults and for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Other information:

To access/replace the control module, see Replacing the control module, old system .
To access/replace the display, see Replacing the display .
For connecting breakout box to control module, see Connecting the breakout box .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Control Module Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Were any faults found in the cables?