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OCCUPANT CLASSIFICATION SENSOR INSPECTION [TWO-STEP DEPLOYMENT CONTROL SYSTEM]

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2016 – MX-5 – Restraints

OCCUPANT CLASSIFICATION SENSOR INSPECTION [TWO-STEP DEPLOYMENT CONTROL SYSTEM]

WARNING:

NOTE:

  • If cargo is put on the sensor detection area of the occupancy sensor, the sensor may respond.

1. Switch the ignition off (LOCK).

2. Disconnect the negative battery cable and wait for 1 min or more. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

3. Remove the passenger-side seat. (See SEAT REMOVAL/INSTALLATION.)

4. Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)

5. Switch the ignition ON (engine off or on).

6. Connect the negative (-) lead of the tester to body ground.

7. Verify that the voltages of each of the terminals are as indicated in the Terminal Voltage Table (Reference)

Terminal Voltage Table (Reference)

Terminal

Signal

Connected to

Measurement conditions

Voltage (V)

Inspection item(s)

2A

Ground

Body ground

Under any condition

1.0 or less

Body ground

2B

Ignition power relay

SRS1 7.5 A fuse

Ignition switched ON (engine off)

B+

SRS1 7.5 A fuse

Ignition switched OFF (LOCK)

1.0 or less

4A

HS-CAN_L

Occupant classification mat sensor

Terminal used for communication therefore determination based on terminal voltage is not possible.

4B

HS-CAN_H

Occupant classification mat sensor

Terminal used for communication therefore determination based on terminal voltage is not possible.

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