Structural View

Fig 1: Structural View Of Immobilizer System (Advanced Keyless System)

Courtesy of MAZDA MOTORS CORP.

CAUTION:

When the engine does not start or stalls and the following DTCs are not indicated, refer to NO. 3 WILL NOT CRANK [L3] . (See NO. 3 WILL NOT CRANK [L3 WITH TC]. )

NOTE:

When the immobilizer system is defective, the engine cannot be started.
If engine condition is normal but security light stays on, inspect for short circuit between security light. Repair or replace the wiring harness if necessary.
The vehicle may fail to start or a DTC may be stored in the keyless control module and PCM if the following occurs:
- If a large, metal object is close to a valid key
- If an electrical device is close to a valid key
- If two or more valid keys are on the same key ring
If any malfunction cannot be identified, verify that no metal object or electrical device is on the key ring.
The security light repeatedly displays a DTC 10 times when the ignition switch is in the ON position.

Turn the ignition switch to the ON position.
- If there is any malfunction, the security light flashes rapidly for approx. 1 minute and starts displaying a DTC.
- If there is no malfunction, the security light illuminates for approx. 3 seconds and goes off.
Verify the security light condition and read the DTC according to security light flashing pattern.
Connect the M-MDS to the DLC-2.
After the vehicle is identified, Select the following items from the initial screen of the M-MDS.
- When using the IDS (laptop PC)
  1. Select the "Toolbox" tab.
  2. Select "Self Test".
  3. Select "Modules".
  4. Select "RKE".
- When using the PDS (Pocket PC)
  1. Select "Module Tests".
  2. Select "Optional" tab.
  3. Select "RKE".
  4. Select "Self Test".
Verify the DTC according to the directions on the screen.
- If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.
Fig 2: Locating DLC-2 Connector
Courtesy of MAZDA MOTORS CORP.
Disconnect the M-MDS.