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Home >> Suzuki >> 2001 >> XL-7 Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Engine Controls - System & Component Testing) >> Engine Sensors & Switches >> Heated Oxygen Sensor Heaters No. 1 & 2

Heated Oxygen Sensor Heaters No. 1 & 2

WARNING: This page is about a different car, the 2003 Suzuki XL-7, 2003 Suzuki Vitara, 2003 Suzuki Grand Vitara, and 2003 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
Grand Vitara & XL-7 5.0-7.0
Vitara
With Warm-up Three-Way Catalyst (1) 4.5-5.7
Without Warm-up Three-Way Catalyst 11.7-14.3
(1) Applies only to HO2S No. 1.