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On-Board Diagnostic (Dynamic Stability Control System): Other Mazda MX-5 NC

Anti-Lock/traction Control 1 illustration ~159 words

PID/Data Monitor And Record

  1. This function allows you to access certain data values, input signals, calculated values, and system status information.

Active Command Modes

  1. This function allows you to control devices through the WDS or equivalent.

Scheme 27

Scheme 27: Reading DTCs Procedure
  1. Connect WDS or equivalent to the vehicle DLC-2 connector.
  2. Retrieve DTC using WDS or equivalent.

Clearing DTCs Procedures

  1. After repairs have been made, perform the DTCs reading procedure.
  2. Erase DTC using WDS or equivalent.
  3. Ensure that the customer's concern has been resolved.

PID/Data Monitor and Record Procedure

  1. Connect WDS or equivalent to the vehicle DLC-2 connector.
  2. Access and monitor PIDs using WDS or equivalent.

Active Command Modes Procedure

  1. Connect WDS or equivalent to the vehicle DLC-2 16-pin connector.
  2. Turn the ignition switch to the ON position (engine off) or start the engine.
  3. Activate active command modes using WDS or equivalent.

PID/DATA Monitor Table

PID name (definition)Unit/ConditionOperation condition (reference)ActionDSC HU/CM terminal
ABS_VOLT (System battery voltage value)VIgnition switch at ON: Approx. 12.2 V Idling: Approx. 14.1 VInspect power supply circuit. (See DSC SYSTEM INSPECTION .)J
ABSLF_I (Left front inlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSLF_O (Left front outlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSLR_I (Left rear inlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSLR_O (Left rear outlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSPMPRLY (Motor relay output state)On/OffRelay activated: On Relay not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSRF_I (Right front inlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSRF_O (Right front outlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSRR_I (Right rear inlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSRR_O (Right rear outlet solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
ABSVLVRLY (Fail-safe relay output state)On/OffFail-safe relay is activated: On Fail-safe relay is deactivated: OffInspect DSC HU/CM. (See DSC HU/CM INSPECTION .)
BOO_ABS (Brake pedal switch input)On/OffBrake pedal depressed: On Brake pedal released: OffInspect the brake switch.N
CCNTABS (Number of continuous codes)DTCs detected: 1-255 No DTCs detected: 0Perform the DTC inspection.
LAT_ACCLGVehicle stopped or driving at constant speed: 0 G Cornering to right: Changes 0 G-positive Cornering to left: Changes 0 G-negativeInspect the combined sensor.AI
LF_WSPD (Left front ABS wheel-speed sensor input)KPH, MPHVehicle stopped: 0 KPH, 0 MPH Vehicle running: vehicle speedInspect the ABS wheel-speed sensor.F, E
LR_WSPD (Left rear ABS wheel-speed sensor input)KPH, MPHVehicle stopped: 0 KPH, 0 MPH Vehicle running: Vehicle speedInspect the ABS wheel-speed sensor.G, H
MCYLI PPa, psiBrake pedal released: 0 Pa, 0 psi Brake pedal depressed: Changes according to the brake fluid pressureInspect the brake fluid pressure sensor.
PMP_MOTOR (Pump motor output state)On/OffPump motor activated: On Pump motor not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
RF_WSPD (Right front ABS wheel-speed sensor input)KPH, MPHVehicle stopped: 0 KPH, 0 MPH Vehicle running: vehicle speedInspect the ABS wheel-speed sensor.M, O
RPM (Engine speed signal input)RPMEngine stopped: 0 RPM Engine speed at 3,000 rpm: 3,000 RPMInspect the PCM. Inspect the instrument cluster.
RR_WSPD (Right rear ABS wheel-speed sensor input)KPH, MPHVehicle stopped: 0 KPH, 0 MPH Vehicle running: Vehicle speedInspect the ABS wheel-speed sensor.I, L
SWA_POS°Steering wheel in neutral position (not turned): 0° Steering wheel turned to left: Changes 0°-negative Steering wheel turned to right: Changes 0°-positiveInspect the steering angle sensor.
TPI%Closed throttle position: 0% Wide open throttle: Changes according to throttle valve opening angleInspect the throttle position sensor.
V_STB_L (LF stability control solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
V_STB_R (RF stability control solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
V_TRC_L (LF traction control solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
V_TRC_R (RF traction control solenoid valve output state)On/OffSolenoid valve activated: On Solenoid valve not activated: OffInspect the DSC HU/CM. (See DSC HU/CM INSPECTION .)
YAW_RATE°/sVehicle stopped or driving straight: 0°/s Cornering to left: Changes 0°/s-negative Cornering to right: Changes 0°/s-positiveInspect the combined sensor.AA

PID/DATA MONITOR TABLE

Active Command Modes Table

Command nameOutput partOperationOperating condition
LATACCELCombined sensor (lateral acceleration) initializationFALSE/TRUEIgnition switch at ON
LF_INLETLF inlet solenoid valveOn/Off
LF_OUTLETLF outlet solenoid valve
LR_INLETLR inlet solenoid valve
LR_OUTLETLR outlet solenoid valve
PMP_MOTORPump motor
RF_INLETRF inlet solenoid valve
RF_OUTLETRF outlet solenoid valve
RR_INLETRR inlet solenoid valve
RR_OUTLETRR outlet solenoid valve
SAS_CALSteering angle sensor initializationFALSE/TRUE
STAB_INDDSC indicator lightOn/Off
TRAC OFFDSC OFF light
V_STB_LLF stability control solenoid valve
V_STB_RRF stability control solenoid valve
V_TRC_LLF traction control solenoid valve
V_TRC_RRF traction control solenoid valve
YAWRATECombined sensor (yaw rate) initialization

ACTIVE COMMAND MODES TABLE