Mazda 6 Service Manual: Oil pressure switch inspection

Caution

• Water or foreign objects entering the connector can cause poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.

On-vehicle Inspection (harness inspection)

1. Disconnect the negative battery cable.

2. Remove the under cover.

3. Disconnect the cord assembly connector.

4. Verify that there is no continuity between cord assembly terminal and ground.

• If as continuity, inspect the cord assembly.
• If the cord assembly is okay, inspect the oil pressure switch. (See On-vehicle Inspection (oil pressure switch inspection).)

5. Connect the cord assembly connector.

6. Install the under cover.

7. Connect the negative battery cable.

On-vehicle Inspection (oil pressure switch inspection)

1. Remove the under cover.

2. Disconnect the cord assembly connector.

3. Start the engine, with gear position in N or P.

4. Reaffirm that there is no continuity between cord assembly terminal and ground.

5. Firmly depress the brake pedal with the left foot.

6. Shift the selector lever to D range.

7. Verify that there is no continuity between cord assembly terminal and ground.

• If not as specified,replace the oil pressure switch. (See OIL PRESSURE SWITCH REMOVAL/INSTALLATION.)

8. Connect the oil pressure switch connector.

9. Install the under cover.

10. Connect the negative battery cable.

Off-vehicle inspection

1. Remove the oil pressure switch.

2. Apply air pressure at 400-440 kPa {4.1-4.4kgf/cm2,58-63psi}

3. Inspect continuity the between oil pressure switch terminal and screw part.

• If not as continuity, replace the oil pressure switch. (See OIL PRESSURE SWITCH REMOVAL/INSTALLATION.)

4. Install the oil pressure switch.