Mazda CX-5 Service & Repair Manual: Seat Belt Warning Alarm
Purpose
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The seat belt warning alarm warns occupants that a seat belt is not fastened.
Function
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The instrument cluster sounds the seat belt warning alarm based on the following CAN signals:
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Vehicle speed signal sent from PCM
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Driver/passenger buckle switch signal, occupancy sensor signal sent from SAS control module
Driver/passenger seat belt warning alarm sound function
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The driver/passenger seat belt warning alarm has a warning for when the vehicle is stopped, while the vehicle is being driven, and subsequent warnings while the vehicle is being driven.
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When all of the following conditions have been met, the alarm sounds.
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Ignition switch ON (engine off or on)
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Driver/passenger buckle switch on signal (seat belt unfastened) is detected
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Occupancy sensor on signal (occupant in passenger seat) is detected (passenger seat belt warning alarm only)
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The driver/passenger seat belt warning alarm sound pattern is as shown in the figure.
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When all of the following conditions are met, the alarm sounds.
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Vehicle speed is approx. 20 km/h {12 mph} or more
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Driver/passenger buckle switch on signal (seat belt unfastened) is detected
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Occupancy sensor on signal (occupant in passenger seat) is detected (passenger seat belt warning alarm only)
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The driver/passenger seat belt warning alarm sound pattern is as shown in the figure.
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When all of the following conditions are met, the alarm sounds.
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Vehicle speed is approx. 20 km/h {12 mph} or more
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Occupancy sensor on signal (occupant in passenger seat) is detected (passenger seat belt warning alarm only)
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After initial warning operates, buckle switch off signal (seat belt fastened) to on signal (seat belt unfastened) is detected
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The driver/passenger seat belt warning alarm sound pattern is as shown in the figure.
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Warning while vehicle is stopped
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Warning while vehicle is being driven
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Subsequent warning
Construction
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The seat belt warning alarm sounds using the buzzer built into the instrument cluster.
Operation
1. The instrument cluster receives (1) the vehicle speed signal from the PCM, the driver/passenger buckle switch signal and occupancy sensor signal from the SAS control module when the ignition is switched ON (engine off or on).
2. The instrument cluster microcomputer turns the transistor on (2) based on each signal.
3. When the transistor turns on, a ground circuit with the alarm is established and the alarm sounds (3).
Fail-safe
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Function not equipped.
Power Steering Malfunction Indicator Light
Purpose
The power steering malfunction indicator light warns the driver that there
is a malfunction with the electric power steering (EPS) system.
Function
If there is a malfunc ...
Seat Belt Warning Light
Purpose
The seat belt warning light warns the driver that a seat belt is not fastened.
Function
The instrument cluster flashes/illuminates the seat belt warning light based
on t ...
Other materials:
Purge Control
Outline
An appropriate amount of evaporative gas is fed into the intake manifold
by the purge solenoid valve operation according to the engine operation conditions.
This ensures driveability and prevents release of evaporative gas into the atmosphere.
The PCM drives the purge so ...
Outer Mirror Glass Inspection
Heated Outer Mirror
1. Disconnect the negative battery cable..
2. Remove the outer mirror glass..
3. Verify that the resistance and continuity between the heated outer mirror
terminals is as indicated in the table.
If not as indicated in the table, or if the resistance is not with ...
Front Door Latch Switch Inspection
1. Perform the front door glass preparation..
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Inner garnish.
b. Front door trim.
c. Front door glass.
d. Front door module panel.
e. Front door key cylinder.
f. Front door latch and lock actuator.
4. Verif ...
