Mazda MX-5 Miata (1997+). Manual - part 8

 

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Mazda MX-5 Miata (1997+). Manual - part 8

 

 

DTC 05: STOPLIGHT SWITCH WIRING HARNESS

1. Check stoplight switch wiring harness for open or short to ground between stoplight switch and ABS 

control module. See WIRING DIAGRAMS . Repair as necessary. If wiring harness is okay, go to next 
step.  

2. Clear DTCs. See CLEARING CODES under DIAGNOSIS & TESTING. Recheck for DTCs. If DTC 05 

is displayed, replace ABS control module. If DTC 05 is not displayed, a temporary poor contact in wiring 
may have occurred and ABS is now functioning properly.  

DTCS 11, 12, 13 & 14: WHEEL SPEED SENSOR, SENSOR ROTOR, HYDRAULIC UNIT OR 
WIRING HARNESS 

1. Check ABS control module connector for poor connection. See COMPONENT LOCATIONS . Repair 

as necessary. If connector is okay, go to next step.  

2. Check wiring harness for open or short to ground between suspect wheel speed sensor and ABS control 

module. See WIRING DIAGRAMS . Repair as necessary. If wiring harness is okay, go to next step.  

3. Check suspect wheel speed sensor. See WHEEL SPEED SENSORS under COMPONENT TESTING . 

Replace as necessary. If wheel speed sensor is okay, go to next step.  

4. Inspect wheel speed sensor rotor for damage or missing teeth. If sensor rotor is damaged or has missing 

teeth, replace sensor rotor. If sensor rotor is okay, go to next step.  

5. Inspect brakeline for damage. If brakeline is damaged, replace brakeline. If brakeline is okay, go to next 

step.  

6. Check hydraulic unit. See HYDRAULIC UNIT under COMPONENT TESTING . Replace as 

necessary. If hydraulic unit is okay, go to next step.  

7. Clear DTCs. See CLEARING CODES under DIAGNOSIS & TESTING. Recheck for DTCs after 

driving vehicle from a stop to faster than 6.2 MPH. If DTC 11, 12, 13 or 14 is displayed, replace ABS 
control module. If DTC 11, 12, 13 or 14 is not displayed, a temporary poor contact in wiring may have 
occurred and ABS is now functioning properly.  

DTC 15: WHEEL SPEED SENSOR, SENSOR ROTOR, HYDRAULIC UNIT OR WIRING HARNESS 

If DTC 15 is displayed, perform DTCS 11 , 12, 13 & 14: WHEEL SPEED SENSOR, SENSOR ROTOR, 
HYDRAULIC UNIT OR WIRING HARNESS test. 

DTCS 22, 23, 24, 25, 26 & 27: SOLENOID VALVE OR WIRING HARNESS 

1. Check ABS control module connector for poor connection. See COMPONENT LOCATIONS . Repair 

as necessary. If connection is okay, go to next step.  

2. Check suspect solenoid valve with valve relay installed. See SOLENOID VALVES under 

COMPONENT TESTING. Replace as necessary. If solenoid valve with valve relay installed is okay, go 
to next step.  

3. Check suspect solenoid valve with valve relay removed. See SOLENOID VALVES under 

COMPONENT TESTING. Replace solenoid valve as necessary. If solenoid valve with valve relay 
removed is okay, go to next step.  

 

1997 Mazda MX-5 Miata 

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock

  

4. Check wiring harness for open or short to ground between hydraulic unit and ABS control module. See 

WIRING DIAGRAMS . Repair as necessary. If wiring harness is okay, go to next step.  

5. Clear DTCs. See CLEARING CODES under DIAGNOSIS & TESTING. Recheck for DTCs. If DTC 

22, 23, 24, 25, 26 or 27 is displayed, replace ABS control module. If DTC 22, 23, 24, 25, 26 or 27 is not 
displayed, a temporary poor contact in wiring may have occurred and ABS is now functioning properly.  

DTC 51: VALVE RELAY OR WIRING HARNESS 

1. Check BTN fuse. Replace as necessary. If BTN or ABS fuse is okay, go to next step.  

2. Check valve relay. See VALVE RELAY under COMPONENT TESTING. Replace as necessary. If 

valve relay is okay, check wiring harness for open or short to ground between valve relay and ABS 
control module. See WIRING DIAGRAMS . Repair as necessary. If wiring harness is okay, go to next 
step.  

3. Clear DTCs. See CLEARING CODES under DIAGNOSIS & TESTING. Recheck for DTCs. If DTC 51 

is displayed, replace ABS control module. If DTC 51 is not displayed, a temporary poor contact in wiring 
may have occurred and ABS is now functioning properly.  

DTC 53: PUMP MOTOR, MOTOR RELAY OR WIRING HARNESS 

1. Turn ignition off and check if pump motor continues to operate. If pump motor continues operating after 

ignition is off, replace motor relay. If pump motor does not continue to operate after ignition is off, go to 
next step.  

2. Check ABS fuse. Replace as necessary. If ABS fuse is okay, go to next step.  

3. Check motor relay. See MOTOR RELAY under COMPONENT TESTING. Replace as necessary. If 

motor relay is okay, check wiring harness for open or short to ground between motor relay and ABS 
control module. See WIRING DIAGRAMS . Repair as necessary. If wiring harness is okay, go to next 
step.  

4. Check pump motor. See PUMP MOTOR under COMPONENT TESTING. Replace as necessary. If 

pump motor is okay, check wiring harness for open or short to ground between hydraulic unit and ABS 
control module. Repair as necessary. If wiring harness is okay, go to next step.  

5. Clear DTCs. See CLEARING CODES under DIAGNOSIS & TESTING. Recheck for DTCs. If DTC 53 

is displayed, replace ABS control module. If DTC 53 is not displayed, a temporary poor contact in wiring 
may have occurred and ABS is now functioning properly.  

DTC 61: ABS CONTROL MODULE 

1. Check ABS control module connector for poor connection. See COMPONENT LOCATIONS . Repair 

as necessary. If connector is okay, go to next step.  

2. Clear DTCs. See CLEARING CODES under DIAGNOSIS & TESTING. Recheck for DTCs. If DTC 61 

is displayed, replace ABS control module. If DTC 61 is not displayed, a temporary poor contact in wiring 
may have occurred and ABS is now functioning properly.  

COMPONENT TESTING 

 

1997 Mazda MX-5 Miata 

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock

  

GENERAL NOTE 

ABS CONTROL MODULE 

Turn ignition off. Test ABS Control Module (ABS CM) using DVOM and Adapter Harness (49-F066-002) 
connected to ABS CM connector. See Fig. 3 . Measure resistance, continuity or voltage as specified. See Fig. 3 
-7. If checking voltage, measure between applicable terminal and GND terminal (AB, AC or AM) of ABS CM 
connector. If voltage, continuity or resistance is not as specified, replace ABS CM. 

Fig. 3: Identifying ABS Control Module Connector Terminals 
Courtesy of MAZDA MOTORS CORP. 

Fig. 4: Testing ABS Control Module (1 Of 3) 
Courtesy of MAZDA MOTORS CORP. 

NOTE:

Before testing ABS components, ensure battery and charging system are 
functioning properly.

 

1997 Mazda MX-5 Miata 

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock

  

Fig. 5: Testing ABS Control Module (2 Of 3) 
Courtesy of MAZDA MOTORS CORP. 

 

1997 Mazda MX-5 Miata 

ANTI-LOCK BRAKE SYSTEM 1997 BRAKES Mazda - Anti-Lock

  

 

 

 

 

 

 

 

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