Dash-Electrical Supply Unit Removal/Installation (Manual A/C) (Us)

WARNING:

Handling the air bag module improperly can accidentally deploy the air bag module, which may seriously injure you. Read the air bag system service warnings and cautions before handling the air bag module. (See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .) (See AIR BAG SYSTEM SERVICE CAUTIONS [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)

NOTE:

The dash-electrical supply unit prior to replacement stores the vehicle specification information.
The new dash-electrical supply unit does not store any vehicle specification information.
When the ignition is switched ON after the dash-electrical supply unit is replaced, the dash-electrical supply unit reads the vehicle specification information sent via CAN transmission from the instrument cluster, and stores the vehicle specification information.

To replace the dash-electrical supply unit, perform the following procedure.
1. Connect the M-MDS to the DLC-2.
2. Switch the ignition ON (engine off).
3. Activate the M-MDS and perform the following procedure.
  1. Press [Start] to start the vehicle identification.
  2. Press the [Toolbox] tab.
  3. Press the [Work Support] icon.
  4. Press [Configuration].
  5. Press [Run] to perform the configuration.
  6. Press [CCU].
  7. When [Install the new ECU] is displayed, move to the dash-electrical supply unit replacement procedure.
Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
Remove the following parts:
1. Glove compartment (without passenger-side knee air bag module) (See GLOVE COMPARTMENT REMOVAL/INSTALLATION .)
2. Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION .)
3. Passenger-side front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
4. Passenger-side front side trim (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
5. Passenger-side decoration panel (See DECORATION PANEL REMOVAL/INSTALLATION .)
6. Passenger-side lower panel (See LOWER PANEL REMOVAL/INSTALLATION (US) .)
7. Passenger-side knee air bag module (with passenger-side knee air bag module) (See KNEE AIR BAG MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)
Disconnect the connectors.

Courtesy of MAZDA MOTORS CORP.
Remove the screws.

Courtesy of MAZDA MOTORS CORP.
Remove the dash-electrical supply unit.
Install in the reverse order of removal.
If the dash-electrical supply unit is replaced, perform the following procedure.
1. Return to the M-MDS operation and press [Continue].
2. When the M-MDS processing is completed, press [Next].
3. When the M-MDS processing is completed, press [Next].
4. Verify that the following conditions/operations are met/completed, mark the check boxes, and then press [Next].
  - Ignition is switched ON (engine off)
  - Install battery charger to vehicle
  - Battery voltage: 11.6 V or more
  - Connect power cable to M-MDS
  - Front doors on both sides and trunk lid (SEDAN) or liftgate (FASTBACK) are open
5. Press [Finish].
6. Switch the ignition OFF.
7. Switch the ignition ON (engine off) to complete the global central configuration (GCC) for the dash-electrical supply unit.
8. Clear the DTC recorded in the memory. (See CLEARING DTC .)