Intermittent Fault

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Check cable between control module #16 and engine coolant temperature sensor signal terminal for an intermittent short-circuit to ground according to Short-Circuit To Ground, Intermittent Faults .

Remedy as necessary.

Other information:

To access the control module/connect breakout box, see Connecting the Breakout Box .
To access/replace Coolant temperature sensor, see Replacing Overheat Protection, Thermostat Flame Sensor And Coolant Temperature Sensor .
For other values, see Signal Specification Additional Heater 912-D/B .

Fig 1: Identifying Data Link Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Coolant Temperature Sensor Circuit

Courtesy of VOLVO CARS OF NORTH AMERICA.

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