B3: Check For O2 Sensor Heater Continuity

With EM021 disconnected, measure the resistance between EM021/001 and EM021/002.

Fig 1: Measuring Resistance Between EM021/001 And EM021/002
Courtesy of JAGUAR CARS, INC.
- Is the resistance between 4 and 10OHM?
Yes : GO to B4

No : Renew O2 sensor, reconnect plug(s)

GO to B8