O2 Sensor Signal and Heater Test

Special Tools:

Equipment
Multimeter -- e.g. SUN DMM-5
^ Available through the MBNA Standard Equipment Program

NOTE: If the O2-sensor signal is not present, the O2-sensor malfunction indicator in the instrument cluster should light up within 5 minutes after starting engine.

Test Page 1:

Fig. 1:

Test Page 2:

Fig. 2:

Fig. 3: