mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Power Steering Pressure Switch > < Heated Oxygen Sensor (HO2S) Inspection|Page 1839
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Oxygen Sensor: Testing and Inspection
Heated Oxygen Sensor Heater (Rear) Inspection

1. Connect the SSTs (NGS tester) to the DLC-2.
2. Select the PID/DATA MONITOR AND RECORD function of NGS tester.
3. Select "RHO2SH R" and "RHO2SH L" on the NGS tester display. NGS shows the operation.

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If not as specified, inspect following.
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ECT sensor

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HO2S

Specification

Specification

Power Steering Pressure Switch > < Heated Oxygen Sensor (HO2S) Inspection|Page 1839