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Home >> Mazda >> 2021 >> CX-5 Signature >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic - Dynamic Stability Control System >> DTC INSPECTION [DSC HU/Control Module] >> ODDTC Self Test
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ODDTC Self Test

  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.
    1. Select "Self Test".
    2. Select "Modules".
    3. Select "ABS".
  3. Verify the DTC according to the directions on the screen.
  4. After completion of repairs, clear all DTCs stored in the module. (See CLEARING DTC [DSC HU/Control Module] .)
    NOTE:
    • The DSC HU/Control Module stores the following two types of information when a DTC is detected and displays snapshot data in the M-MDS
      • Vehicle information detected by DSC HU/Control Module
      • Vehicle information detected by instrument cluster and received via CAN communication
    • Refer to PID monitor table for confirm the DSC system operation status while the DSC HU/Control Module does not store the DTC. (See PID/DATA MONITOR TABLE [DSC HU/Control Module] .)
    • Snapshot data items are not displayed, according to detected DTC.

Snapshot data table 

-: Not applicable

Snapshot data item Unit Data contents Data read/use method Corresponding; data monitor items
AAT °C, °F Ambient air temperature - -
ABS Inactive/Active Antilock braking system - -
APP_STATUS Accelerator Pedal Off/Under 20%/Over 20%/FAIL Accelerator pedal position - -
AYC Inactive/Active Active yaw control - -
BRK_F_P_R KPa, psi Brake fluid line hydraulic pressure (Raw Value) - BRK_F_P_R
BTCS Inactive/Active Brake traction control system - -
CFG_STATUS Config Complete/Not Configured/Config Error Instrument cluster configuration status - -
ECT_STATUS Under 0 degrees C/0 - Under 80 degrees C/Over 80 degrees C/FAIL Engine coolant temperature status - -
EDC#1 Inactive/Active Engine drag control - -
IC_VPWR V Instrument cluster power supply
  • The DSC HU/Control Module constantly receives the power supply voltage value of the instrument cluster sent via CAN signal from the instrument cluster.
  • If a DTC is detected, the DSC HU/Control Module records the power supply voltage of the instrument cluster when the DTC was detected, and it is displayed in the M-MDS.
 VPWR (2)
IG-ON_TIMER hh:mm:ss(1) Elapsed time since ignition was switched ON
NOTE:
  • The instrument cluster records the elapsed time since the ignition was switched ON.
  • The DSC HU/Control Module constantly receives the elapsed time since the ignition was switched ON sent via CAN signal from the instrument cluster.
  • If a DTC is detected, the DSC HU/Control Module records the elapsed time since the ignition was switched ON when the DTC was detected, and it is displayed in the M-MDS.
 -
LAT_ACCL_R G Lateral acceleration (Raw Value) - LAT_ACCL_R
LON_ACCL_R G Longitudinal acceleration (Raw Value) - LON_ACCL_R
PMP_MT Off/On Pump motor - -
PWR_MODE_KEY Key Out/Key Recently Out/Key Approved(Position 0)/Post Accessory (Position 0)/Accessory (Position 1)/Post Ignition (Position 1)/Ignition On (Position 2)/Running (Position 2)/Running - Starting In Progress (Position 2)/Crank (Position 3)
  • Key Out: Ignition switched off
  • Key Recently Out (Position 0): Elapsed time within 3 s since ignition was switched to off
  • Accessory (Position 1): Ignition is switched to ACC
  • Post Ignition (Position 2): Elapsed time within 3 s since ignition was switched ON
  • Ignition On (Position 2): Ignition switched ON (engine off)
  • Running (Position 2): Ignition switched ON (engine on)
  • Running -Starting: Cranking condition
  • The DSC HU/Control Module constantly receives the ignition switch status sent via CAN signal from the instrument cluster.
  • If a DTC is detected, the DSC HU/Control Module records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.
 -
RPM_STATUS Engine Stop/Under 1500rpm/Over 1500rpm/FAIL Engine RPM status
  • The DSC HU/Control Module constantly receives the ignition switch status sent via CAN signal from the instrument cluster.
  • If a DTC is detected, the DSC HU/Control Module records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.
 TACHOMTR (2)
SHIFT_STATUS P/ND/R/FAIL Shift position status
  • The DSC HU/Control Module constantly receives the selector lever position sent via CAN signal from the instrument cluster.
  • If a DTC is detected, the DSC HU/Control Module records the selector lever position when the DTC was detected, and it is displayed in the M-MDS.
 -
STR_ANG_C ° Steering wheel angle (Calculated Value) - SIR_ANG_C
TCS Inactive/Active Traction control system - -
TOTAL_DIST km, ft, mi Accumulated total traveled distance from completion of vehicle until DSC HU/Control Module detects DTC (Odometer value in instrument cluster) The distance traveled when the DSC HU/Control Module detected a DTC can be calculated by performing the following procedure.
  1. Verify the odometer value in the instrument cluster.
  2. Verify the snap shot data item TOTAL_DIST.
  3. Subtract 2 from 1.
 -
TOTAL_TIME hh:mm:ss(1) Accumulated total elapsed time since vehicle completion until DSC HU/Control Module detects a DTC
NOTE:
  • When the ROOM fuse is removed, and the ignition is switched off, the time is not included in the elapsed time.
 The elapsed time when the DSC HU/Control Module detected a DTC can be calculated by performing the following procedure.
  1. Verify the PID item TOTAL_TIME of the instrument cluster.
  2. Verify the snap shot data item TOTAL_TIME.
  3. Subtract 2 from 1.
 -
VPWR V Power supply - VPWR
VSPD KPH, MPH Vehicle speed - VSPD
VSPD_STATUS Stop/0 - 10km/h/Over 10km/h/FAIL When a DTC is detected, the DSC HU/Control Module receives the vehicle speed being detected by the instrument cluster via CAN signals and displays it in the M-MDS.
  • The DSC HU/Control Module constantly receives the vehicle speed sent via CAN signal from the instrument cluster.
  • If a DTC is detected, the DSC HU/Control Module records the vehicle speed when the DTC was detected, and it is displayed in the M-MDS.
 SPEEDOMTR(2)
YAW_RATE_R °/S Yaw Rate (Raw Value) - YAW_RATE_R
(1) The seconds may be indicated after the de cimal point.

(2) Instrument cluster PID (See PID/DATA MONITOR TABLE [INSTRUMENT CLUSTER] .)
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