Heated Oxygen Sensor Heaters No. 1 & 2
Turn ignition off. Disconnect Heated Oxygen (HO2S) sensor No. 1 or 2 pigtail connector. Using an ohmmeter, measure resistance between VB and GND terminals. See Figure . See HEATED OXYGEN SENSOR HEATER RESISTANCE table. Replace HO2S if resistance is not as specified.
HEATED OXYGEN SENSOR HEATER RESISTANCE @ 68°F (20°C)
| Application | Ohms | |||
|---|---|---|---|---|
| Aerio | ||||
| HO2S No. 1 | 2.0-6.0 | |||
| HO2S No. 2 | 4.0-10.0 | |||
| Esteem | ||||
| HO2S No. 1 | 5.0-6.4 | |||
| HO2S No. 2 | 11.7-14.3 | |||
| Grand Vitara & XL-7 | 5.0-7.0 | |||
| Vitara | ||||
| With Warmup Three-Way Catalyst (1) | 4.5-5.7 | |||
| Without Warmup Three-Way Catalyst | 11.7-14.3 | |||
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