Checking cables

Check signal cable between heated oxygen sensor (HO2S) #4 and control module #A17 (#A17) for an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults .

Other information

Connecting the breakout box/accessing the control module, see Connecting the breakout box .
To access/replace the heated oxygen sensor (HO2S), see Heated oxygen sensors (HO2S), replacing .
For information about signals:
- For 6 cylinder engines -2001, see Signal specification
- For 6 cylinder engines 2002-, see Signal specification
- For 6 cylinder engines -2004, see Signal specification
- For 6 cylinder engines 2005-, see Signal specification .

Fig 1: Identifying Front Heated Oxygen Sensor Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Voltage Display

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Front Heated Oxygen Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.