Heated Oxygen Sensor (Ho2S) Heaters No. 1 & 2
Turn ignition off. Disconnect HO2S No. 1 or 2 pigtail connector. Using an ohmmeter, measure resistance between VB and GND terminals. See Fig 1 . See HO2S HEATER RESISTANCE table. Replace HO2S if resistance is not as specified.
HO2S HEATER RESISTANCE @ 68°F (20°C)
| Application | Ohms |
|---|---|
| Esteem & Swift | 11.7-15.6 |
| Sidekick 1.6L & X-90 | 11.7-14.3 |
| Sidekick 1.8L | 2.0-100 |