Mazda 6 Service Manual: Foreword

Outline

• The OBD (on-board diagnostic) test inspects the integrity and function of the headlight auto leveling system and output the results when reqested by the specitic tests.
• OBD test also:

- Provides a quick inspection of the headlight auto leveling system.

- Is usually performed at the start of each deagnostic procedure.

- Provides verification after repairs to ensure that no other faults occurred during service.

• Diagnostic DTC can be read/cleared, using the SST

  (WDS or equivalent).

Read/clear diagnostic results

• This function allows you to read or clear DTCs in the auto leveling control unit (main) memory.

Reading DTCs Procedure Using WDS or equivalent

1. Connect WDS or equivalent to the vehicle DLC-2 16-pin connector.

2. Retrieve DTC by WDS or equivalent.

Clearing DTCs Procedures Using WDS or equivalent

1. After repairs have been made, perform the DTCs reading procedure.

2. Erase DTC by WDS or equivalent.

3. Ensure that the customer′s concern has been resolved.

Active Command Modes Procedure

1. Connect WDS or equivalent to the vehicle DLC-2 16-pin connector.

2. Turn the ignition switch to ON (Engine OFF) or start engine.

3. Turn on the headlight (low-beam).

4. Activate active command modes using WDS or equivalent.