Mazda 6. Manual - part 244

P–32

ABS/TCS 

TCS (DSC) OFF SWITCH INSPECTION

A6E692167650W03

1. Remove the TCS OFF switch.
2. Inspect for continuity between the TCS OFF switch 

terminals using an ohmmeter.

• If not within the specification, replace the TCS OFF switch.

End Of Sie

FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION

A6E692143720W01

1. Remove the mud guard.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.

.

A6E6921W010

A6E6921W009

A6E6916W001

1

Connector

2

Bolt

3

Front ABS wheel-speed sensor

ABS/TCS 

P–33

P

End Of Sie

FRONT/REAR ABS WHEEL-SPEED SENSOR INSPECTION

A6E692143720W02

Visual Inspection

1. Remove the wheel and tire, and inspect the sensor for looseness and damage. Replace the sensor if 

necessary.

Clearance Inspection

1. Inspect the clearance between the wheel-speed 

sensor and the sensor rotor.

Clearance

0.3—1.1 mm {0.012—0.043 in}

Resistance Inspection

1. Disconnect the ABS wheel-speed sensor connector.
2. Inspect the resistance at the ABS wheel-speed sensor.

• If not as specified, replace the ABS wheel-speed sensor.

Resistance

1.3—1.7 kilohm

Voltage Inspection

1. On level ground, jack up the vehicle and support it evenly on safety stands.
2. Disconnect the ABS wheel-speed sensor connector.
3. Inspect each sensor by rotating each wheel one revolution per second.

• If not as specified, replace the ABS wheel-speed sensor.

Voltage

0.25—1.2 V (AC)

Voltage Pattern Inspection

1. On level ground, jack up the vehicle and support it evenly on safety stands.
2. Disconnect the ABS wheel-speed sensor connector.
3. Using an oscilloscope, inspect voltage pattern for 

distortion and noise by rotating each wheel.

• If there is distortion or noise, inspect the ABS 

sensor rotor.

End Of Sie

A6E6921W003

A6E6921W004

P–34

ABS/TCS 

REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION

A6E692143710W01

1. Remove the tire house trim.

S–91 TIRE HOUSE TRIM REMOVAL/INSTALLATION

.)

2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.

.

End Of Sie

A6E6916W002

1

Connector

2

Bolt

3

Rear ABS wheel-speed sensor

DYNAMIC STABILITY CONTROL 

P–35

P

DSC SYSTEM INSPECTION

A6E692067650W01

Preparation

1. Verify that the battery is fully charged.
2. With ignition switch on, verify that the ABS warning light goes out after 2.4 seconds.
3. Turn the ignition switch off.
4. On level ground, jack up the vehicle and support it evenly on safety stands.
5. Shift the transaxle to N position.
6. Release the parking brake.
7. Rotate the wheels by hand, and inspect for brake drag.

Operation of DSC Inspection

1. Perform the “Preparation.”
2. Connect WDS or equivalent to the DLC-2.
3. Set up an active command modes inspection 

according to the combination of commands 
below.

Note

• When working with two people, one should 

press on the brake pedal, the other should 
attempt to rotate the wheel being inspected.

Pressure retention

DYNAMIC STABILITY CONTROL

DLC-2

A6E3970W002

Command name

Wheels

LF

RF

LR

RR

LF_TC_VLV

OFF

RF_TC_VLV

LF_DSC_V

RF_DSC_V

ABS_POWER

ON

LF_INLET

ON

OFF

OFF

OFF

LF_OUTLET

OFF

LR_INLET

ON

LR_OUTLET

OFF

RF_INLET

ON

RF_OUTLET

OFF

RR_INLET

ON

RR_OUTLET

OFF

PMP_MOTOR