Operating Inspection
1. Verify that the starter operates only when the ignition switch is at the START position with the selector lever in P or N position.
2. Verify that the back-up lights illuminate when shifted to R position with the ignition switch at the ON position.
Continuity Inspection
Caution
1. Disconnect the negative battery cable.
2. Remove the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
3. Disconnect the TR switch connector.

4. Inspect for continuity at the TR switch.

5. Reinspect for continuity at TR switch.
6. Connect the TR switch connector.
7. Install the air cleaner component. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.)
8. Connect the negative battery cable.
Hold switch removal/installation
Transaxle range (tr) switch removal/installationMazda 6 Service Manual: Crankshaft position (ckp) sensor inspection
Note
Perform the following inspection only when directed.
Resistance Inspection
1. Disconnect the CKP sensor connector.
2. Measure the resistance between CKP sensor terminals A and B using an
ohmmeter.
If not as specified, replace the CKP sensor.
If CKP sensor resistance is okay, bu ...
Mazda 6 Service Manual: Starting procedure for on-board diagnostic test mode
Note
All DTCs displayed in the on-board diagnostic test mode should be
entered in the Audio Repair Order Form.
1. Turn the ignition switch to the ACC or ON position.
2. First press the POWER button, then simultaneously press the AM button and
TAPE/MD button for 2 seconds or more.
N ...