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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Steering >> Electronic Steering >> On-Board Diagnostic - Steering >> Electric Power Steering (EPS) On-Board Diagnosis [Electric Power Steering (EPS)] >> Clearing DTCs Procedure >> PID/Data Monitor and Record Procedure

PID/Data Monitor and Record Procedure

  1. Connect the M-MDS (IDS) to the DLC-2.
  2. After the vehicle is identified, select the following items from the initialization screen of the IDS.
    1. Select "DataLogger".
    2. Select "Modules".
    3. Select "EPS".
  3. Select the applicable PID from the PID table.
  4. Verify the PID data according to the directions on the screen.
NOTE:
  • The PID data screen function is used for monitoring the calculated value of input/output signals in the module. Therefore, if the monitored value of the output parts is not within the specification, it is necessary to inspect the monitored value of input parts corresponding to the applicable output part control. In addition, because the system does not display an output part malfunction as an abnormality in the monitored value, it is necessary to inspect the output parts individually.
  • When detecting DTCs, PIDs related to a malfunctioning system may not display even if the module is normal. Therefore, if a PID is not displayed, it is necessary to verify the DTC, perform malfunction diagnosis of the DTC that was detected, and do repairs.

DTC Table

x: Applicable

-: Not applicable

DTC Power steering malfunction indicator light illuminati on status Diagnosis system component Fail safe Drive cycle Self test type (1) Memory function Service Information
M-MDS
C200B:02 Illuminated Torque sensor x - C, D x (See DTC C200B:02/C200B:16/C200B:62/C200B:64/C200B:85 [ELECTRIC POWER STEERING (EPS)] .)
C200B:16 Illuminated Torque sensor x - C, D x
C200B:1C Illuminated Torque sensor x - C, D x (See DTC C200B:1C/C200C:1C [ELECTRIC POWER STEERING (EPS)] .)
C200B:62 Illuminated Torque sensor x - C, D x See DTC C200B:02/C200B:16/C200B:62/C200B:64/C200B:85 [ELECTRIC POWER STEERING (EPS)] .)
C200B:64 Illuminated Torque sensor x - C, D x
C200B:85 Illuminated Torque sensor x - C, D x
C200C:1C Illuminated Torque sensor x - C, D x (See DTC C200B:1C/C200C:1C [ELECTRIC POWER STEERING (EPS)] .)
C200D:1C Flashes/Illuminated (2) Resolver sensor x - C, D x (See DTC C200D:1C/C200D:64/U2011:19/U2011:1C/U2011:62/U2011:72/U2011:92 [ELECTRIC POWER STEERING (EPS)] .)
C200D:64 Illuminated Resolver sensor x - C, D x
U0001:88 Illuminated CAN system communication error x - C, D x (See DTC U0001:88/U0100:00/U0121:00/U0126:00/U0155:00/U0214:00/U023A:00 [ELECTRIC POWER STEERING (EPS)] .)
U0100:00 Illuminated Communication error to PCM x - C, D x
U0121:00 - Communication error to DSC CM x - C, D x
U0126:00 - Communication error to SAS control module X - C, D X
U0155:00 - Communication error to instrument cluster x - C, D x
U0214:00 - Communication error to start stop unit x - C, D x
U023A:00 - Communication error to forward sensing camera (FSC) X - C, D X
U0338:00 - Signal error from start stop unit x - C, D x (See DTC U0338:00/U0515:00 [ELECTRIC POWER STEERING (EPS)] .)
U0401:00 Illuminated Signal (vehicle speed) error from PCM x - C, D x (See DTC U0401:00 [ELECTRIC POWER STEERING (EPS)] .)
- Signal (engine speed) error from PCM x - C, D x
U0415:00 - Signal error from DSC CM x - C, D x (See DTC U0415:00 [ELECTRIC POWER STEERING (EPS)] .)
U0423:00 -(3) Signal (engine switch status) error from instrument cluster x - C, D x (See DTC U0423:00 [ELECTRIC POWER STEERING (EPS)] .)
U0428:00 - Signal error to SAS control module X - C, D X (See DTC U0428:00 [ELECTRIC POWER STEERING (EPS)] .)
U0515:00 - Signal error from start stop unit x - C, D x (See DTC U0338:00/U0515:00 [ELECTRIC POWER STEERING (EPS)] .)
U053B:00 Illuminates Signal error to forward sensing camera (FSC) X - C, D X (See DTC U053B:00/U053B:82/U053B:83 [ELECTRIC POWER STEERING (EPS)] .)
U053B:61 Illuminates Forward sensing camera (FSC) X - C, D X (See DTC U053B:61 [ELECTRIC POWER STEERING (EPS)] .)
U053B:82 Illuminates Signal error to forward sensing camera (FSC) X - C, D X (See DTC U053B:00/U053B:82/U053B:83 [ELECTRIC POWER STEERING (EPS)] .)
U053B:83 Illuminates Signal error to forward sensing camera (FSC) X - C, D X
U2011:19 Illuminated EPS motor x - C, D x (See DTC C200D:1C/C200D:64/U2011:19/U2011:1C/U2011:62/U2011:72/U2011:92 [ELECTRIC POWER STEERING (EPS)] .)
U2011:1C Illuminated EPS motor x - C, D x
U2011:62 Illuminated EPS motor x - C, D x
U2011:72 Illuminated EPS motor x - C, D x
U2011:92 Illuminated EPS motor x - C, D x
U2300:54 - EPS configuration x - C, D x (See DTC U2300:54/U2300:55/U2300:56 [ELECTRIC POWER STEERING (EPS)] .)
U2300:55 Illuminated EPS configuration x - C, D x
U2300:56 - EPS configuration x - C, D x
U3000:16 Illuminated EPS CM x - C, D x (See DTC U3000:16/U3000:1C/U3000:28/U3000:41/U3000:46/U3000:47/U3000:49/U3000:61/U3000:73/U3000:96 [ELECTRIC POWER STEERING (EPS)] .)
U3000:1C Illuminated EPS CM x - C, D x
U3000:28 Illuminated EPS CM x - C, D x
U3000:41 Illuminated EPS CM x - C, D x
U3000:46 - EPS CM x - C, D x
U3000:47 Illuminated EPS CM x - C, D x
U3000:49 Illuminated EPS CM x - C, D x
U3000:4B - EPS CM x - C, D x (See DTC U3000:4B [ELECTRIC POWER STEERING (EPS)] .)
U3000:61 Illuminated EPS CM x - C, D x (See DTC U3000:16/U3000:1C/U3000:28/U3000:41/U3000:46/U3000:47/U3000:49/U3000:61/U3000:73/U3000:96 [ELECTRIC POWER STEERING (EPS)] .)
U3000:73 Illuminated EPS CM x - C, D x
U3000:96 Illuminated EPS CM x - C, D x
U3003:16 Illuminated Battery power supply x - C, D x (See DTC U3003:16 [ELECTRIC POWER STEERING (EPS)] .)
U3003:17 Illuminated Battery power supply x - C, D x (See DTC U3003:17 [ELECTRIC POWER STEERING (EPS)] .)
(1) C: CMDTC self test, D: ODDTC self test

(2) If the EPS CM detects an internal circuit malfunction in the resolver sensor, it flashes the power steering malfunction indicator light. At this time, if EPS system internal temperature increases, the assist force gradually weakens. Then if assist force decreases above the specified value, the power steering malfunction indicator light switches from flashing to illumination.

(3) If the EPS CM detects the signal that a engine speed is below the specified value, it illuminates the power steering malfunction indicator light.

Fail-safe Function Table

DTC Fail-safe control status
M-MDS
C200B:02 Control disabled
C200B:16 Control disabled
C200B:1C Control disabled
C200B:62 Control disabled
C200B:64 Inhibits normal control, switches to backup control, and controls electric power steering so that steering assist can be maintained
C200B:85 Control disabled
C200C:1C Control disabled
C200D:1C Control is maintained in the backup control and the power steering warning buzzer is sounded
  • If EPS system internal temperature increases above the specified value, the EPS CM disables assistance and stops the power steering warning buzzer is sounded
C200D:64 Control disabled
U0001:88 Control enabled
U0100:00 Control is maintained by gradually changing the controlled vehicle speed and setting it to 100 km/h {62.1 mph}
U0121:00 Control enabled
U0126:00 Control enabled
U0155:00 Control enabled
U0214:00 Control enabled
U0338:00 Control enabled
U0401:00
  • Vehicle speed signal malfunction
    • Control is maintained by gradually changing the controlled vehicle speed and setting it to 100 km/h {62.1 mph}
  • Engine speed signal malfunction
    • Control enabled
U0415:00 Control enabled
U0423:00 Control enabled
  • If the EPS CM detects the signal that a engine speed is below the specified value, it disables assistance
U0428:00 Control enabled
U0515:00 Control enabled
U053B:00 Control enabled
U053B:61 Control enabled
U053B:82 Control enabled
U053B:83 Control enabled
U2011:19 Control disabled
U2011:1C Control disabled
U2011:62 Control disabled
U2011:72
  • An open circuit malfunction is detected in the one phase of the three-phase stator in the EPS motor
    • Control is maintained in the backup control
  • Other malfunction detected in EPS motor internal circuit
    • Control disabled
U2011:92 Control disabled
U2300:54 Control enabled
U2300:55 Control enabled
U2300:56 Control enabled
U3000:16 Control disabled
U3000:1C Control disabled
U3000:28 Control disabled
U3000:41 Control disabled
U3000:46 Control is maintained in fail mode
U3000:47 Control disabled
U3000:49 Control disabled
U3000:4B Control is maintained in fail mode
U3000:61 Control disabled
U3000:73 Control disabled
U3000:96 Control disabled
U3003:16 Control is maintained by gradually decreasing the motor control current
However, control is inhibited if the power supply voltage is the specified value of less.
U3003:17 Control disabled

PID/DATA Monitor Table

NOTE:
  • If the PID/data monitor value "STR_ANG" is inspected, perform the following procedure before inspecting.
  1. Switch the ignition to OFF, and maintain this condition for approx. 3 s.
  2. Set the vehicle wheels in the straight-ahead position.
  3. Switch the ignition ON (engine off or on).

-: Not applicable

PID name (definition) Unit/Operation Operation Status (Reference) Inspection item(s) EPS control module terminal
M-MDS display
CEN_TRQ_S Nm
  • Torque sensor neutral position: Near 0 Nm
 -
ECU_IN_TMP °C, °F
  • Displays temperature of board in EPS control module: - 40°C-+215°C {- 40°F-419°F}
 -
LAS_CUR A
  • Lane-keep assist system is not opperated: 0 A
  • Steered: Changes to positive or negative
 -
ENG_RPM RPM
  • Engine stopped: 0 RPM
  • Engine rotating at 3, 000 RPM: 3, 000 RPM
 -
MT_CURRENT A
  • When not steered: Near 0 A
  • Steered: Changes to positive or negative
 -
OH_CR_C Yes/No
  • Overheat protection control (complete) is operating: Yes
  • Overheat protection control (complete) is not operating: No
 - -
OH_CR_M Yes/No
  • Overheat protection control (middle) is operating: Yes
  • Overheat protection control (middle) is not operating: No
 - -
OH_HIST_C Yes/No
  • Before overheat protection control (complete) has operated: Yes
  • Before overheat protection control (complete) has not operated: No
 - -
OH_HIST_M Yes/No
  • Before overheat protection control (middle) has operated: Yes
  • Before overheat protection control (middle) has not operated: No
 - -
OH_IG_CNT_C -
  • The number of times the ignition is switched ON during the period from when overheat protection control (complete) is finished to the time the next overheat protection control (complete) is started
    • Displays a maximum number of 255 times in which the ignition is switched ON until the first overheat protection control (complete) is started.
    • During overheat protection control (complete), the number of times the ignition is switched ON is not counted, and 0 is displayed.
 - -
OH_IG_CNT_M -
  • The number of times the ignition is switched ON during the period from when overheat protection control (middle) is finished to the time the next overheat protection control (middle) is started
    • Displays a maximum number of 255 times in which the ignition is switched ON until the first overheat protection control (middle) is started.
    • During overheat protection control (middle), the number of times the ignition is switched ON is not counted, and 0 is displayed.
 - -
STR_AB_EST °
  • Steering wheel in neutral position (not turned): 0°
  • Steered left: Changes to 0°- Positive
  • Steered right: Changes to 0°- Negative
    NOTE:
    • The signal displayed in this item is a estimated absolute steering angle signal output.
 Perform the DTC inspection for the PCM, DSC HU/CM, and EPS CM.
If a DTC is displayed after performing the DTC inspection for the PCM, DSC HU/CM, and EPS CM, repair the malfunctioning part according to the applicable DTC troubleshooting.
(See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)] .) (See DTC INSPECTION [DYNAMIC STABILITY CONTROL (DSC)] .) (See ELECTRIC POWER STEERING (EPS) ON-BOARD DIAGNOSIS [ELECTRIC POWER STEERING (EPS)] .) After performing the DTC inspection, perform the following procedures:
  • Switch the ignition off and maintain condition for approx. 3 s.
  • Set the vehicle wheels straight-ahead.
  • Switch the ignition ON (engine off or on).

If an abnormal value is indicated after verifying the value of the STR_ANG again, replace the EPS CM.		 -
STR_ANG °
  • Steering wheel position when ignition is switched ON (engine off or on): 0°
  • Steered left: Changes to 0°- Positive
  • Steered right: Changes to 0°- Negative
    NOTE:
    • The signal displayed in this item is a steering angle (relative angle) signal.
 -
STR_ROT_SPD °/s
  • Not steered: Near 0 °/s
  • Steered: Changes according to steering speed
 -
STR_TRQ_S_M Nm
  • Not steered: Near 0 Nm
  • Steered left: Changes to 0 Nm-Positive
  • Steered right: Changes to 0 Nm-Negative
 -
STR_TRQ_S_S Nm
  • Not steered: Near 0 Nm
  • Steered left: Changes to 0 Nm-Positive
  • Steered right: Changes to 0 Nm-Negative
 -
VPWR V
  • Engine stopped: Approx. 12 V
  • Idling: Approx. 14 V
  • Battery inspection (See BATTERY INSPECTION .)
  • Power supply circuit inspection (ignition switch, fuses)
 1B
VSPD KPH, MPH
  • Vehicle stopped: 0 KPH, 0 MPH
  • Vehicle speed 20 km/h {12 mph}: 20 KPH, 12 MPH
 -
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