PCM Removal/Installation

Fig 1: PCM

Courtesy of MAZDA MOTORS CORP.

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Disconnect the PCM connectors. (See PCM CONNECTOR CONNECTION NOTE .)

Fig 2: PCM Connector
Courtesy of MAZDA MOTORS CORP.
Remove the clips from the PCM bracket.

Fig 3: PCM Bracket And Clips
Courtesy of MAZDA MOTORS CORP.
Loosen the bolt.

Fig 4: PCM Bolt With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the bolts. (See PCM BRACKET INSTALLATION NOTE .)

Fig 5: PCM Bracket Bolts With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the nuts.

Fig 6: PCM Nuts With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the PCM bracket. (See PCM BRACKET TEMPORARY INSTALLATION NOTE .)

Fig 7: PCM And PCM Bracket
Courtesy of MAZDA MOTORS CORP.
Remove the PCM.
Remove the bolt.

Fig 8: PCM Bracket Bolt With Torque Specification
Courtesy of MAZDA MOTORS CORP.
Remove the clip from the PCM bracket.

Fig 9: PCM Bracket And Clip
Courtesy of MAZDA MOTORS CORP.
Remove the bolt. (See PCM BRACKET INSTALLATION NOTE .)

Fig 10: PCM Bracket And Bolt
Courtesy of MAZDA MOTORS CORP.
Remove the PCM bracket.
Install in the reverse order of removal.
When replacing the PCM on the vehicles, perform the following:
NOTE:
- If configuration cannot be performed by reading/writing of the vehicle specification information, perform the configuration using As-Built information after replacing the PCM. (See PCM CONFIGURATION (USING AS-BUILT DATA) .)
1. Perform the PCM configuration. (See PCM CONFIGURATION (USING READ/WRITE FUNCTION) .)
2. Perform the immobilizer system-related part programming. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING .)