PCM REMOVAL/INSTALLATION [MZR 1.6]

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Caution

• If configuration is not performed when the PCM is replaced with a new one, the vehicle specification information is not stored in the PCM and the system will not operate normally.

• When performing configuration, it is necessary to read the vehicle specification information from the PCM before replacing it. Connect the M-MDS to the vehicle and perform vehicle identification before removing the PCM. The vehicle specification information is temporarily stored in the M-MDS.

Note

• The PCM prior to replacement stores the vehicle specification information.

• A new PCM does not store any vehicle specification information.

• If the vehicle specification information PCM prior to replacement cannot be read, perform the configuration using As-Built data.

Without Set Bolt

1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].)

2. Remove the PCM cover. (See PCM Cover Installation Note.)

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3. Disconnect the PCM connector. (See PCM Connector Connection Note.)

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4. Remove the PCM assembly from the battery tray. (See PCM Assembly Installation Note.)

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5. Remove the PCM from the PCM bracket.

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6. Install in the reverse order of removal.

7. 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) [MZR 1.6].)

(1) Perform the PCM configuration. (See PCM CONFIGURATION (USING READ/WRITE FUNCTION) [MZR 1.6].)

(2) Perform the immobilizer system-related part programming. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING.)

With Set Bolt

1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [MZR 1.6].)

2. Remove the PCM cover. (See PCM Cover Installation Note.) (See Set Bolt Removal Note.) (See Set Bolt Installation Note.)

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3. Disconnect the PCM connector. (See PCM Connector Connection Note.)

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4. Remove the PCM assembly from the battery tray. (See PCM Assembly Installation Note.)

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5. Remove the set bolts. (See Set Bolt Removal Note.) (See Set Bolt Installation Note.)

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6. Remove the PCM bracket No.1 from the PCM assembly.

7. Remove the PCM from the PCM bracket No.2.

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8. Install in the reverse order of removal.

9. When replacing the PCM on the vehicles, perform the following:

Note

(1) Perform the PCM configuration. (See PCM CONFIGURATION (USING READ/WRITE FUNCTION) [MZR 1.6].)

(2) Perform the immobilizer system-related part programming. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING.)

Set Bolt Removal Note

1. Using a chisel and a hammer, cut a groove on the head of the set bolt so that a screwdriver can be inserted.

2. Loose the set bolt using an impact screwdriver or pliers.

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Set Bolt Installation Note

1. Install a new set bolt and tighten it until the neck of the bolt breaks off.

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PCM Assembly Installation Note

1. Install the PCM assembly shown in the figure.

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PCM Cover Installation Note

1. Insert the PCM cover end into area A shown in the figure.

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2. Temporarily tighten the two bolts, then completely tighten them.

PCM Connector Connection Note

Caution

• Do not touch the PCM connector terminal. The terminal is extremely thin and can be damaged by touching it.

• If the PCM connector is inserted at an angle and the lever is moved, the connector could be damaged. Verify that the PCM connector is inserted straight.

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1. Set the PCM connector to the position shown in the figure.

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2. Align the PCM connector straight against the connection surface.

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3. Press the PCM connector lever until a click sound is heard.

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