Hyundai Santa Fe (TM): Engine Control System / Heated Oxygen Sensor (HO2S). Specifications

Specification
HO2S [Bank 1 / Sensor 1] [Euro-V]
Item
Specification
Heater Resistance (Ω)
2.5 - 4.0 [20°C (68°F)]

HO2S [Bank 1 / Sensor 1] [Except Euro-V]
A/F Ratio (λ)
Output Voltage (V)
RICH
Approx. 0.9
LEAN
Approx. 0.04

Item
Specification
Heater Resistance (Ω)
3.3 - 4.1Ω [21°C (69.8°F)]

HO2S [Bank 1 / Sensor 2]
A/F Ratio (λ)
Output Voltage (V)
RICH
Approx. 0.9
LEAN
Approx. 0.04

Item
Specification
Heater Resistance (Ω)
3.3 - 4.1Ω [21°C (69.8°F)]

    Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter.

    Circuit Diagram Harness Connector [Bank 1 / Sensor 1] [Bank 1 / Sensor 2]

    Other information:

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Auto Defogging Sensor. Repair procedures

    Inspection To inspect and diagnose the sensor, refer to Self-Diagnosis procedure and DTC guide. Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the rain sensor inner cover (A) and rain sensor cover (B).

    Hyundai Santa Fe (TM) 2019-2023 Service and Repair Manual: Heater

    Heater Unit. Components and components location Component Location 1. Heater Unit Assembly Components 1. Heater unit assembly 2. Heater NVH pad 3. Heater seal duct 4.

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