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Mazda CX-5 Service & Repair Manual: Precaution [Dynamic Stability Control (DSC)]

1. The ABS warning light and/or brake system warning light and/or TCS/DSC indicator light and/or TCS OFF indicator light illuminate even when the system is normal.

Warning lights/Indicator lights that may illuminate and/or flash

Cases in which the light may illuminate

Conditions in which the light will go out

ABS, EBD, TCS and DSC control

  • ABS warning light

  • Brake system warning light (*1)

  • TCS/DSC indicator light

Only the front wheels rotate under the following condition while jacked up, stuck, or on the chassis dynamometer:

  • Detected 8 times

    for a continuous 20 s

    while at a vehicle speed of 20 km/h {12 mph} or more

    . (One detection period is when ignition is switched from ON to off.)

After turning off the ignition once and then restarting the engine, the vehicle is driven at 10km/h {6.2 mph} or more

, and then normal operation is verified.

  • ABS: Cuts control.

  • EBD: Cuts control.

  • TCS: Cuts control.

  • DSC: Cuts control.

Parking brake is not fully released while driving.

Brake drag.

Sudden acceleration/deceleration.

Left/right or front/rear tires are different. (Size, radius, tire pressure, or wear is other than that listed on tire label.)

Battery voltage at DSC HU/CM ignition terminal Y drops below about 9.5 V

. (*2)

Battery voltage rises above about 9.5 V

.

  • ABS: Operates control.

  • EBD: Operates control.

  • TCS: Operates control.

  • DSC: Operates control.

Brake system warning light

Brake fluid amount is low.

Brake fluid level is with in the specification.

  • ABS: Operates control.

  • EBD: Operates control.

  • TCS: Operates control.

  • DSC: Operates control.


*1 In case where the light may illuminate, only when DSC HU/CM detects that a wheel-speed sensor determines that more than two wheels are malfunctioning.

*2 If battery voltage drops below 10 V

while vehicle speed is greater than 3 km/h {2 mph}

, DSC HU/CM detects DTC U3003:16.

2. Precautions during servicing of DSC. The DSC is composed of electrical and mechanical parts. It is necessary to categorize malfunctions as being either electrical or hydraulic when performing troubleshooting.

a. Malfunction in electrical system

b. Malfunctions in hydraulic system

Intermittent Concern Troubleshooting

Vibration method

NOTE:

Inspection method for switch and/or sensor connectors or wires

1. Connect the M-MDS (IDS) to the DLC-2.

2. Switch the ignition to ON (engine off).

NOTE:

3. Access PIDs for the switch or sensor you are inspecting.

4. Turn the switch on manually.

5. Slightly shake each connector or wiring harness vertically and horizontally while monitoring the PID.


Inspection method for switches and/or sensors

1. Connect the M-MDS (IDS) to the DLC-2.

2. Switch the ignition to ON (engine off).

NOTE:

3. Access PIDs for the switch or sensor you are inspecting.

4. Vibrate the sensor slightly with your finger.

Malfunction data monitor method

1. Perform malfunction reappearance test according to malfunction reappearance mode and malfunction data monitor. The malfunction cause is found in the malfunction data.

Connector terminal check method

1. Check the connection condition of each female terminal.

2. Insert male terminal; fit female terminal size to female terminal and check to see whether malfunction is in female terminal or not.


Hill Launch Assist (Hla)
Purpose/Function The hill launch assist (HLA) is a function which assists the driver in accelerating the vehicle on a slope by activating the traction control solenoid valve in the DSC HU ...

Tcs Control
Outline The TCS control actuates torque reduction through engine control, as well as using brake control to control traction. NOTE: Engine control: Engine output is lowered by ...

Other materials:

Cooling Fan Motor Removal/Installation
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Tu ...

A/C Unit Removal/Installation
1. Disconnect the negative battery cable.. 2. Discharge the refrigerant.. 3. Drain the engine coolant.. CAUTION: If moisture or foreign material enters the refrigeration cycle, cooling ability will be lowered and abnormal noise or other malfunction could occur. Always plug open f ...

Tcs Off Switch Inspection
1. Remove the TCS OFF switch.. 2. Verify that the resistance between the TCS OFF switch terminals B and C is as indicated in the table. If not as indicated in the table, replace the TCS OFF switch. TCS OFF switch specification Terminal Test con ...

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