Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Using the SSTs (WDS or Equivalent)

HEATED OXYGEN SENSOR INSPECTION

Using the SSTs (WDS or equivalent)
1. Connect the SSTs (WDS or equivalent) to the DLC.

Specification:




2. Access "O2S11", and "O2S12" PIDs. The WDS or equivalent measures and shows the voltage.

3. If not as specified, inspect the following.
- Intake-air system
- Fuel system
- On-board diagnostic system

4. If these systems are okay, replace the heated oxygen sensor.