Mazda Training manual - part 199

TC001-18-01H

INTRODUCTION TO M-MDS 
07 - Reprogramming/Updating a PCM                                                         

 
 

 

 

 

Activity 07- Page 1

Activity 07:  Reprogramming

 

/

 

Updating a PCM 

 
Upon completing this activity you will be able to use M-MDS to reprogram or update 
a PCM. 
 
 
What you need to complete this activity: 
 

• 

A current Mazda vehicle prepped by your instructor 

• 

Mazda-approved PDA with PDS installed 

• 

Mazda-approved laptop with ActiveSync installed  

• 

High-speed internet access 

 
 
Procedure: 
 
1.  Connect the M-MDS data cable to DLC 2 under the dash. The PDA will turn on 

automatically. 

 

Three USB pop-up messages quickly flash on and off the PDA. You may 
not see the first two messages:  

 
 

 
 
 
 
 
 

USB message 2 

USB message 1 

TC001-18-01H

INTRODUCTION TO M-MDS 
07 - Reprogramming/Updating a PCM                                                         

 
 

 

 

 

Activity 07- Page 2

USB message 3 

Activity 07 
(Continued) 
 

The third message, “Status: User 
Authenticated,” is the most important 
message. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
2. Tap Start on the 

main screen. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
3. Tap PDS from the drop-down menu. 
 
 
 
 
 
 
 
 
 
 
 

Your PDA’s main screen 
may look slightly different 
than this example. 

TC001-18-01H

INTRODUCTION TO M-MDS 
07 - Reprogramming/Updating a PCM                                                         

 
 

 

 

 

Activity 07- Page 3

Activity 07 
(Continued) 
 
4.  The PDS Establishing Communications 

screen flashes on then off. This screen 
indicates the PDA is connecting to the 
VCM via the USB network. 

 
 
 
 
 
 
 
 
 
 
 
 
 

5. Tap the 

 New Vehicle icon. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
6. Select 16 pin, then tap tick. 
 
 
 
 
 
 
 
 
 
 

TC001-18-01H

INTRODUCTION TO M-MDS 
07 - Reprogramming/Updating a PCM                                                         

 
 

 

 

 

Activity 07- Page 4

Activity 07 
(Continued) 
 
7.  Turn the ignition key to KOEO, and then 
tap tick. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

8. Watch the following Establishing 

Communication screen flash on then off. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
9.  Verify the vehicle information is correct, 

and then tap YES. 

 
 
 
 
 
 
 
 

CAUTION 

If you do not turn the ignition key ON, 
you will need to perform a soft reset 
on your PDA and reboot the VCM.