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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:

Front Wiring Harness Protector Removal/Installation
Front Wiring Harness Protector No.1 1. Disconnect the negative battery cable.. 2. Remove the air cleaner case.. 3. While pressing the tabs of clip A in the direction of the arrows (1) shown in the figure, pull clip A in the direction of the arrow (2) shown in the figure to detach the tab of ...

Climate Control Unit Inspection [Full Auto Air Conditioner]
1. Remove the climate control unit with the connector connected.. 2. Switch the ignition ON (engine off or on). 3. Connect the negative (-) lead of the tester to body ground. 4. By inserting the positive (+) lead of the tester into each climate control unit terminal, measure the voltage acco ...

Heated Oxygen Sensor (HO2 S) Inspection
HO2S Inspection 1. Connect the M-MDS to the DLC?2. 2. Switch the ignition ON (engine on). 3. Warm up the engine to normal operating temperature. 4. Access the following PIDs using the M-MDS.. VSS (Vehicle speed) RPM (Engine speed) O2S12 (HO2S output voltage) 5. D ...

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