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2008 - MX-5 - Brakes

ON-BOARD DIAGNOSIS [ABS]

On-Board Diagnostic (OBD) Test Description

Read/clear diagnostic results
PID/Data monitor and record
Active command modes

Reading DTCs Procedure

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

2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
3. Verify the DTC according to the directions on the screen.
4. After completion of repairs, clear all DTCs stored in the ABS. (See Clearing DTCs Procedures.)

Clearing DTCs Procedures

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

2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
3. Verify the DTC according to the directions on the screen.
4. Press the clear button on the DTC screen to clear the DTC.
5. Verify that no DTCs are displayed.

PID/Data Monitor and Record Procedure

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

2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
3. Select the applicable PID from the PID table.
4. Verify the PID data according to the directions on the screen.

NOTE:

Active Command Modes Procedure

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

2. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.
3. Select the active command modes from the PID table.
4. Perform the active command modes, inspect the operations for each parts.

DTC Table



DTC

System malfunction location

Page

M-MDS

B1317

Power supply system

(See DTC B1317, B1318 [ABS].)

B1318

Power supply system

(See DTC B1317, B1318 [ABS].)

B1342

ABS HU/CM system

(See DTC B1342 [ABS].)

B1484

Brake switch system

(See DTC B1484 [ABS].)

B2477

ABS HU/CM configuration

(See DTC B2477 [ABS].)

C1095

Pump motor, motor relay system

(See DTC C1095, C1096 [ABS].)

C1096

Pump motor, motor relay system

(See DTC C1095, C1096 [ABS].)

C1141

LF ABS sensor rotor system

(See DTC C1141, C1142, C1143, C1144 [ABS].)

C1142

RF ABS sensor rotor system

(See DTC C1141, C1142, C1143, C1144 [ABS].)

C1143

LR ABS sensor rotor system

(See DTC C1141, C1142, C1143, C1144 [ABS].)

C1144

RR ABS sensor rotor system

(See DTC C1141, C1142, C1143, C1144 [ABS].)

C1145

RF ABS wheel-speed sensor system

(See DTC C1145, C1155, C1165, C1175 [ABS].)

C1148

RF ABS wheel-speed sensor system

(See DTC C1148, C1158, C1168, C1178 [ABS].)

C1155

LF ABS wheel-speed sensor system

(See DTC C1145, C1155, C1165, C1175 [ABS].)

C1158

LF ABS wheel-speed sensor system

(See DTC C1148, C1158, C1168, C1178 [ABS].)

C1165

RR ABS wheel-speed sensor system

(See DTC C1145, C1155, C1165, C1175 [ABS].)

C1168

RR ABS wheel-speed sensor system

(See DTC C1148, C1158, C1168, C1178 [ABS].)

C1175

LR ABS wheel-speed sensor system

(See DTC C1145, C1155, C1165, C1175 [ABS].)

C1178

LR ABS wheel-speed sensor system

(See DTC C1148, C1158, C1168, C1178 [ABS].)

C1186

Fail-safe relay system

(See DTC C1186, C1266 [ABS].)

C1194

LF outlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1198

LF inlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1210

RF outlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1214

RF inlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1233

LF ABS wheel-speed sensor/ABS sensor rotor system

(See DTC C1233, C1234, C1235, C1236 [ABS].)

C1234

RF ABS wheel-speed sensor/ABS sensor rotor system

(See DTC C1233, C1234, C1235, C1236 [ABS].)

C1235

RR ABS wheel-speed sensor/ABS sensor rotor system

(See DTC C1233, C1234, C1235, C1236 [ABS].)

C1236

LR ABS wheel-speed sensor/ABS sensor rotor system

(See DTC C1233, C1234, C1235, C1236 [ABS].)

C1242

LR outlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1246

RR outlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1250

LR inlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1254

RR inlet solenoid valve system

(See DTC C1194, C1198, C1210, C1214, C1242, C1246, C1250, C1254 [ABS].)

C1266

Fail-safe relay system

(See DTC C1186, C1266 [ABS].)

C1805

Incorrect ABS HU/CM installed

(See DTC C1805 [ABS].)

U0073

CAN system communication error

(See DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM].)

U1900

Communication error to other module

(See DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM].)

U2023

Abnormal message from PCM

(See DTC TABLE[MULTIPLEX COMMUNICATION SYSTEM].)


PID/DATA Monitor Table



PID name

(definition)

Unit/Condition

Operation condition (reference)

Action

ABS HU/CM terminal

ABS_VOLT

(System battery voltage value)

V

  • Ignition switch at ON: Approx. 12.2 V

  • Idling: Approx. 14.1 V

Inspect the power supply circuit.

(See ABS SYSTEM INSPECTION.)

J

ABSLF_I

(Left front inlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSLF_O

(Left front outlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSLR_I

(Left rear inlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSLR_O

(Left rear outlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSPMPRLY

(Motor relay output state)

On/Off

  • Relay activated: On

  • Relay not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSRF_I

(Right front inlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSRF_O

(Right front outlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSRR_I

(Right rear inlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSRR_O

(Right rear outlet solenoid valve output state)

On/Off

  • Solenoid valve activated: On

  • Solenoid valve not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

ABSVLVRLY

(Fail-safe relay output state)

On/Off

  • Fail-safe relay is

    activated: On

  • Fail-safe relay is deactivated: Off

Inspect ABS HU/CM.

(See ABS HU/CM INSPECTION)

BOO_ABS

(Brake pedal switch input)

On/Off

  • Brake pedal depressed: On

  • Brake pedal released: Off

Inspect the brake switch.

N

CCNTABS

(Number of continuous codes)

  • DTCs detected:

    1—255

  • No DTCs detected: 0

Perform the DTC inspection.

LF_WSPD

(Left front ABS wheel-speed sensor input)

KPH, MPH

  • Vehicle stopped: 0 KPH, 0 MPH

  • Vehicle running: Vehicle speed

Inspect the ABS wheel-speed sensor.

E, F

LR_WSPD

(Left rear ABS wheel-speed sensor input)

KPH, MPH

  • Vehicle stopped: 0 KPH, 0 MPH

  • Vehicle running: Vehicle speed

Inspect the ABS wheel-speed sensor.

G, H

PMP_MOTOR

(Pump motor output state)

On/Off

  • Pump motor activated: On

  • Pump motor not activated: Off

Inspect the ABS HU/CM.

(See ABS HU/CM INSPECTION.)

RF_WSPD

(Right front ABS wheel-speed sensor input)

KPH, MPH

  • Vehicle stopped: 0 KPH, 0 MPH

  • Vehicle running: Vehicle speed

Inspect the ABS wheel-speed sensor.

M, O

RR_WSPD

(Right rear ABS wheel-speed sensor input)

KPH, MPH

  • Vehicle stopped: 0 KPH, 0 MPH

  • Vehicle running: Vehicle speed

Inspect the ABS wheel-speed sensor.

I, L


Active Command Modes Table



Command name

Output part

Operation

Operating condition

LF_INLET

LF inlet solenoid valve

On/Off

Ignition switch at ON

LF_OUTLET

LF outlet solenoid valve

LR_INLET

LR inlet solenoid valve

LR_OUTLET

LR outlet solenoid valve

PMP_MOTOR

Pump motor

RF_INLET

RF inlet solenoid valve

RF_OUTLET

RF outlet solenoid valve

RR_INLET

RR inlet solenoid valve

RR_OUTLET

RR outlet solenoid valve




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