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Mazda CX-5 Service & Repair Manual: Tire Pressure Monitoring System (TPMS)

Mazda CX-5 Service & Repair Manual / Suspension / Wheels, Tires / Tire Pressure Monitoring System (TPMS)

Purpose, Outline

System structural view


System wiring diagram


Function


Part name

Function

DSC HU/CM

  • Calculates the change in tire pressure based on the signals from each sensor and monitors the change in status.

  • When it is determined that a tire pressure decreases below the specified value based on the initialization, the tire pressure monitoring system warning light is illuminated.

  • The tire pressure monitoring system warning light illumination signal is sent to the instrument cluster via a CAN signal.

  • If a malfunction occurs in the tire pressure monitoring system, determination is made to flash the tire pressure monitoring system warning light.

  • The tire pressure monitoring system warning light flash signal is sent to the instrument cluster via a CAN signal.

ABS wheel-speed sensor

  • The wheel speed is sent to the DSC HU/CM.

Ambient temperature sensor

  • The ambient temperature is sent to the PCM.

PCM

  • The ambient temperature is sent to the DSC HU/CM via a CAN signal.

PCM

BARO sensor

  • The atmospheric pressure is sent to the DSC HU/CM via a CAN signal.

Instrument cluster

Tire pressure monitoring system warning light

  • The tire pressure monitoring system warning light illuminates by the illumination signal from the DSC HU/CM.

  • The tire pressure monitoring system warning light flashes for approx. 1 min by the flash signal from the DSC HU/CM, and then it illuminates.

Tire pressure monitoring system warning alarm

  • The tire pressure monitoring system warning alarm sound is triggered by the warning alarm request signal from the DSC HU/CM.

Instrument cluster

  • The initialization signal is sent to the DSC HU/CM via a CAN signal.

Tire pressure monitoring system set switch

  • The initialization signal is sent to the instrument cluster.


Operation

The tire pressure monitoring system operates as shown in the following figure.


Mis-use prevention logic

Tire pressure monitoring system warning light does not illuminate

Tire pressure monitoring system does not operate normally

Wheels And Tires
Outline An adhesive-type balance weights has been adopted to the outer side of the aluminum alloy wheels. Due to this, a stylish wheel design is realized. In consideration of the e ...

Tire Pressure Monitoring System Initialization Procedure
Perform the tire pressure monitoring system initialization when the following operations have been performed: Tire pressures have been adjusted Tires or wheels have ...

Other materials:

Headliner Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Sunroof seaming welt (with sunroof system). b. A-pillar trim. c. Front map light. d. Sunvisor. e. Front scuff plate. f. Rear scuff plate. g. B-pillar lower trim. h. Adjust anchor cover. i. Upper anchor i ...

Supplemental Restraint System (SRS) Precautions
The front and side supplemental restraint systems (SRS) include up to 6 air bags. Please verify which kinds of air bags are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed. The air bags ar ...

Rear Accessory Socket Removal/Installation
1. Disconnect the negative battery cable.. 2. Insert a tape-wrapped flathead screwdriver into the service hole in the position shown in the figure. 3. Move the flathead screwdriver in the direction of the arrow (1) shown in the figure, pull out the service hole cover, and detach the serv ...

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