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Steering Wheel And Column Removal/Installation: Notes

Replacement part 

Lockbolt
Quantity: 1
Location of use: Steering wheel		 Joint bolt
Quantity: 1
Location of use: Intermediate shaft (upper side)		 Joint bolt
Quantity: 1
Location of use: Intermediate shaft (lower side)
Bolt
Quantity: 2
Location of use: Steering lock unit		 - -
WARNING:
  • Handling the driver-side air bag module improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the air bag system service warnings and cautions before handling the driver-side 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.] .)
  • the steering mechanism is turned from lock to lock continuously or the steering rack terminal limit is reached repeatedly, such high-load steering action increases the temperature of the steering column (to approx. 85°C {185°F}), causing severe burns. Be careful when handling the steering column.
  • If the steering column is dropped, the EPS control module could be damaged internally causing the steering mechanism to become inoperative, which could result in an unexpected accident. Always replace a steering column which has been received an impact.
CAUTION:
  • The EPS will not operate normally if the EPS configuration is not performed. Always perform the EPS Control Module auto configuration after replacing the EPS Control Module so that the EPS will operate normally.
  • If the steering column is dropped it could result in internal damage to the EPS Control Module, therefore be careful not to drop it. If the EPS Control Module receives an impact, replace it.
  • If the steering column is stored in a humid place, the EPS system may not operate properly when installed to the vehicle. Store the steering column in a suitable place.
  • Because the weight of the steering column is approx. 10 kg {22 lb}, it may fall off during servicing and be damaged. Be careful when handling the steering column.
  • If the intermediate shaft is connected to the steering gear (pinion) before installing the steering column to the dashboard member, the weight of the steering column could cause damage to the intermediate shaft slider/bush/yoke. Always perform the procedure according to the appropriate service information .
  • The universal joint could be damaged if subjected to an impact when the intermediate shaft (pinion) is disconnected. Perform the servicing carefully avoiding impact when disconnecting the intermediate shaft from the steering gear (pinion).
  • When handling the steering column, do not release the adjuster lever lock except when the steering column is securely assembled to the dashboard member. Otherwise, it could damage the steering column and the other parts.
  • A new steering column is shipped with it set to the position for delivery. Maintain this condition until the steering column is completely installed to the dashboard member so as to avoid damage during transportation and installation.
  • When removing/installing the steering column, keep the wiring harness away from the steering column installation area so as to prevent the steering column from being caught in the wiring harness and damaged.
NOTE:
  • The EPS Control Module stores the vehicle specification information.
  • A new EPS Control Module does not store the vehicle specification information.
  • When the ignition is switched ON (engine off or on) after replacing the EPS Control Module, the EPS Control Module reads data from the instrument cluster via CAN communication and performs auto configuration.
  • If the vehicle is driven in a straight line at a vehicle speed of approx. 10 km/h {6.2 mph} or more, the EPS Control Module detects the steering angle neutral position automatically. Until the self-learning of the steering angle neutral position is finished, the EPS Control Module performs assist control based on the steering angle recognized when the ignition is switched ON (engine off or on).
  • When installing the replacement part, do not rotate the steering shaft until the installation is completed.
  • In order to completely interrupt the EPS system power supply, do not disconnect the battery within 60 s after the ignition switch is turned off.
  • Do not replace the steering column (EPS system) with that of another vehicle even if they are the same model.
  • Before connecting the EPS Control Module connector, remove the fuse or disconnect the battery to interrupt the power supply completely.
  1. To replace the EPS Control Module, 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 [EPS].
      7. When [Install the new ECU] is displayed, move to the EPS Control Module replacement procedure.
  2. Disconnect the negative battery terminal and wait for 1 min or more. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  3. Remove the driver-side air bag module.

    (See DRIVER-SIDE AIR BAG MODULE REMOVAL [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .) (See DRIVER-SIDE AIR BAG MODULE INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)

  4. Straighten the steering wheel.
  5. Disconnect the heated steering wheel control unit connector. (With heated steering wheel system)
    G13177080Courtesy of MAZDA MOTORS CORP.
  6. Disconnect the steering switch connector.
  7. Remove the lockbolt.
    Fig 1: Steering Wheel And Lockbolt With Torque Specification
    G13177081Courtesy of MAZDA MOTORS CORP.
  8. Remove the steering wheel.
    CAUTION:
    • Do not remove the steering wheel using a hammer so as to prevent damaging the steering column.
  9. Remove the following parts.
    1. Passenger-side decoration panel

      (See DECORATION PANEL REMOVAL/INSTALLATION .)

    2. Driver-side decoration panel

      (See DECORATION PANEL REMOVAL/INSTALLATION .)

    3. Driver-side front scuff plate

      (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)

    4. Driver-side front side trim

      (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)

    5. Driver-side lower panel

      (See DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION .)

    6. Driver-side knee air bag module

      (See KNEE AIR BAG MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)

    7. Upper column cover

      (See COLUMN COVER REMOVAL/INSTALLATION .)

    8. Lower column cover

      (See COLUMN COVER REMOVAL/INSTALLATION .)

    9. Clock spring

      (See CLOCK SPRING REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM - US/CANADA SPEC.] .)

    10. Wiper and washer switch

      (See WIPER AND WASHER SWITCH REMOVAL/INSTALLATION .)

    11. Light switch

      (See LIGHT SWITCH REMOVAL/INSTALLATION .)

  10. Disconnect the wiring harness clip and connectors shown in the figure below.
    G13558971Courtesy of MAZDA MOTORS CORP.
  11. Remove the clips and set the harness bracket in a place which does not interfere with servicing.
    G15748830Courtesy of MAZDA MOTORS CORP.
  12. Remove in the order shown in the figure below.
  13. Install in the reverse order of removal.
  14. If the EPS Control Module 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 liftgate are open
    5. Press [Finish].
    6. Switch the ignition OFF.
    7. Switch the ignition ON (engine off) to complete global central configuration (GCC) for the EPS Control Module.
    8. Clear the DTC.

      (See CLEARING DTC .)

Fig 2: Steering Wheel And Column Components Location With Torque Specification
G15748831Courtesy of MAZDA MOTORS CORP.
STEERING WHEEL AND COLUMN COMPONENT OPERATIONS

Component No. Refer to
1 Joint cover
2 Steering column component
(See STEERING COLUMN COMPONENT REMOVAL NOTE .)
(See STEERING COLUMN COMPONENT INSTALLATION NOTE .)
3 EPS Control Module
(See EPS CONTROL MODULE REMOVAL NOTE .)
(See SPACER, RUBBER, EPS CONTROL MODULE INSTALLATION NOTE .)
4 Rubber
(See SPACER, RUBBER, EPS CONTROL MODULE INSTALLATION NOTE .)
5 Spacer
(See SPACER, RUBBER, EPS CONTROL MODULE INSTALLATION NOTE .)
6 Intermediate shaft
(See INTERMEDIATE SHAFT REMOVAL NOTE .)
(See INTERMEDIATE SHAFT INSTALLATION NOTE .)
7 Steering column
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