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 control module connector for contact resistance and oxidation in accordance with Contact Resistance And Oxidation .
Check flame sensor circuit for an intermittent open-circuit according to Open-Circuit, Intermittent Faults .
Check cable between control module #8 and flame sensor signal terminal for an intermittent short-circuit to supply voltage according to Short-Circuit To Supply Voltage, Intermittent Faults .
Remedy as necessary.
Other information:
- To access the control module/connect breakout box, see Connecting the Breakout Box .
- To access/replace the flame sensor, see Replacing Overheat Protection, Thermostat Flame Sensor And Coolant Temperature Sensor .
- For other values, see Signal Specification Additional heater 912-D/B .
- Continue
Refer to Information