Heated Oxygen Sensor Heaters No. 1 & 2
WARNING: This page is about a different car, the 2002 Suzuki XL-7, 2002 Suzuki Vitara, 2002 Suzuki Grand Vitara, 2002 Suzuki Esteem, and 2002 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.
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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