Mazda MX-5 Miata / Grand Touring. Manual — part 22

Fig. 8: Verifying Lock Lever Is Completely Pushed In
Courtesy of MAZDA MOTORS CORP.

ABS CONFIGURATION

1. Connect the M-MDS or equivalent to the DLC-2.

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Antilock Brake System - MX-5 Miata

Fig. 9: Locating DLC-2 Connector
Courtesy of MAZDA MOTORS CORP.

2. After the Vehicle is identified, select the following items from the initial screen of the M-MDS.



When using the IDS (laptop PC)

1. Select the "Module Programming".



When using the PDS (Pocket PC)

1. Select "Programming".

2. Select "Module Programming".

3. Then, select the "Programmable Module Installation" and "ABS" from the screen menu.

4. Perform the configuration according to the directions on the screen.

5. Retrieve DTCs using the M-MDS, then verify if DTCs are present.



If a DTC is present, perform the applicable DTC inspection. (See ON-BOARD DIAGNOSTIC
(ABS) -- MX-5 MIATA )

ABS HU/CM INSPECTION

1. Disconnect the ABS HU/CM connector.

2. Connect the negative battery cable.

3. Attach the tester lead to the ABS HU/CM harness side connector, then inspect voltage, continuity or

resistance according to the standard (reference value) on STANDARD (REFERENCE VALUE)

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Antilock Brake System - MX-5 Miata

TABLE .

STANDARD (REFERENCE VALUE)

Fig. 10: Identifying ABS HU/CM Connector Terminals
Courtesy of MAZDA MOTORS CORP.

STANDARD (REFERENCE VALUE) TABLE

Terminal

Signal name Connected to

Measured

item

Measured

terminal

(measured

condition)

Standard

Inspection Item

(s)

A

Ground (ABS

motor)

Ground point

Continuity

A-ground point

Continuity

detected



Wiring

harness (A-

ground

point)

B

Power supply

(ABS motor

operation)

Battery

Voltage

Under any

condition

B+



Wiring

harness (B-

battery)

C

Power supply

(solenoid)

Battery

Voltage

Under any

condition

B+



Wiring

harness (C-

battery)

D

Ground (ABS

system)

Ground point

Continuity

D-ground point

Continuity

detected



Wiring

harness (D-

ground

point)

E

LF wheel-

speed sensor

(ground)

LF ABS

wheel-speed

sensor

Continuity

E-LF ABS

wheel-speed

sensor

connector

terminal B

Continuity

detected



Wiring

harness (E-

LF ABS

wheel-speed

sensor

connector

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Antilock Brake System - MX-5 Miata

terminal B)

F

LF wheel-

speed sensor

(single)

LF ABS

wheel-speed

sensor

Continuity

F-LF ABS

wheel-speed

sensor

connector

terminal A

Continuity

detected



Wiring

harness (F-

LF ABS

wheel-speed

sensor

connector

terminal A)

G

LR wheel-

speed sensor

(signal)

LR ABS

wheel-speed

sensor

Continuity

G-LR ABS

wheel-speed

sensor

connector

terminal A

Continuity

detected



Wiring

harness (G-

LR ABS

wheel-speed

sensor

connector

terminal A)

H

LR wheel-

speed sensor

(ground)

LR ABS

wheel-speed

sensor

Continuity

H-LR ABS

wheel-speed

sensor

connector

terminal B

Continuity

detected



Wiring

harness (H-

LR ABS

wheel-speed

sensor

connector

terminal B)

I

RR wheel-

speed sensor

(signal)

RR ABS

wheel-speed

sensor

Continuity

I-RR ABS

wheel-speed

sensor

connector

terminal A

Continuity

detected



Wiring

harness (I-

RR ABS

wheel-speed

sensor

connector

terminal A)

J

Power supply

(system)

Ignition

switch

Voltage

Ignition switch

at ON

B+



Wiring

harness (J-

ignition

switch)

Ignition switch

is off.

1 V or less

-

K

-

-

-

-

-

-

L

RR wheel-

speed sensor

(ground)

RR ABS

wheel-speed

sensor

Continuity

L-RR ABS

wheel-speed

sensor

connector

terminal B

Continuity

detected



Wiring

harness (L-

RR ABS

wheel-speed

sensor

connector

terminal B)



Wiring

2008 Mazda MX-5 Miata Grand Touring

2008 BRAKES Antilock Brake System - MX-5 Miata