id0602a5100900
Outline
Block diagram
am3uun00003087
|
Function
Malfunction detection function
Malfunction display function
Memory function
DTC table
×: Applicable—: Not applicable
| DTC |
Power steering malfunction indicator light illumination status |
Diagnosis system component |
Fail-safe |
Drive cycle |
Self test type*1 |
Memory function |
|---|---|---|---|---|---|---|
| Mazda Modular Diagnostic System (M-MDS) |
||||||
|
C200B:02
|
Illuminated
|
Torque sensor
|
×
|
—
|
C, D
|
×
|
|
C200B:16
|
Illuminated
|
Torque sensor
|
×
|
—
|
C, D
|
×
|
|
C200B:1C
|
Illuminated
|
Torque sensor
|
×
|
—
|
C, D
|
×
|
|
C200B:62
|
Illuminated
|
Torque sensor
|
×
|
—
|
C, D
|
×
|
|
C200B:64
|
Illuminated
|
Torque sensor
|
×
|
—
|
C, D
|
×
|
|
C200B:85
|
Illuminated
|
Torque sensor
|
×
|
—
|
C, D
|
×
|
|
C200C:1C
|
Illuminated
|
Torque sensor
|
×
|
—
|
C, D
|
×
|
|
C200D:1C
|
Flashes/Illuminated*
2
|
Resolver sensor
|
×
|
—
|
C, D
|
×
|
|
C200D:64
|
Illuminated
|
Resolver sensor
|
×
|
—
|
C, D
|
×
|
|
U0001:88
|
Illuminated
|
Module communication error
|
×
|
—
|
C, D
|
×
|
|
U0100:00
|
Illuminated
|
Communication error to PCM
|
×
|
—
|
C, D
|
×
|
|
U0121:00
|
—
|
Communication error to DSC HU/CM
|
×
|
—
|
C, D
|
×
|
|
U0126:00
|
—
|
Communication error to SAS control module
|
×
|
—
|
C, D
|
×
|
|
U0155:00
|
—
|
Communication error to instrument cluster
|
×
|
—
|
C, D
|
×
|
|
U0214:00
|
—
|
Communication error to start stop unit
|
×
|
—
|
C, D
|
×
|
|
U023A:00
|
—
|
Communication error to forward sensing camera (FSC)
|
×
|
—
|
C, D
|
×
|
|
U0338:00
|
—
|
Signal error from start stop unit
|
×
|
—
|
C, D
|
×
|
|
U0401:00
|
Illuminated
|
Signal (vehicle speed) error from PCM
|
×
|
—
|
C, D
|
×
|
|
—
|
Signal (engine speed) error from PCM
|
×
|
—
|
C, D
|
×
|
|
|
U0415:00
|
—
|
Signal error from DSC HU/CM
|
×
|
—
|
C, D
|
×
|
|
U0423:00
|
—*
3
|
Signal (engine switch status) error from instrument cluster
|
×
|
—
|
C, D
|
×
|
|
U0428:00
|
—
|
Signal error to SAS control module
|
×
|
—
|
C, D
|
×
|
|
U0515:00
|
—
|
Signal error from start stop unit
|
×
|
—
|
C, D
|
×
|
|
U053B:00
|
Illuminates
|
Signal error to forward sensing camera (FSC)
|
×
|
—
|
C, D
|
×
|
|
U053B:61
|
Illuminates
|
Forward sensing camera (FSC)
|
×
|
—
|
C, D
|
×
|
|
U053B:82
|
Illuminates
|
Signal error to forward sensing camera (FSC)
|
×
|
—
|
C, D
|
×
|
|
U053B:83
|
Illuminates
|
Signal error to forward sensing camera (FSC)
|
×
|
—
|
C, D
|
×
|
|
U2011:19
|
Illuminated
|
EPS motor
|
×
|
—
|
C, D
|
×
|
|
U2011:1C
|
Illuminated
|
EPS motor
|
×
|
—
|
C, D
|
×
|
|
U2011:62
|
Illuminated
|
EPS motor
|
×
|
—
|
C, D
|
×
|
|
U2011:72
|
Illuminated
|
EPS motor
|
×
|
—
|
C, D
|
×
|
|
U2011:92
|
Illuminated
|
EPS motor
|
×
|
—
|
C, D
|
×
|
|
U2300:54
|
—
|
EPS configuration
|
×
|
—
|
C, D
|
×
|
|
U2300:55
|
Illuminated
|
EPS configuration
|
×
|
—
|
C, D
|
×
|
|
U2300:56
|
—
|
EPS configuration
|
×
|
—
|
C, D
|
×
|
|
U3000:16
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:1C
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:28
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:41
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:46
|
—
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:47
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:49
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:4B
|
—
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:61
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:73
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3000:96
|
Illuminated
|
EPS control module
|
×
|
—
|
C, D
|
×
|
|
U3003:16
|
Illuminated
|
Battery power supply
|
×
|
—
|
C, D
|
×
|
|
U3003:17
|
Illuminated
|
Battery power supply
|
×
|
—
|
C, D
|
×
|
ac5wzn00004656
|
ac5wzn00004421
|
Fail-safe function
Fail-safe Function Table
| DTC |
Fail-safe control status |
|---|---|
| Mazda Modular Diagnostic System (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 control module 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
|
|
U023A:00
|
Control enabled
|
|
U0338:00
|
Control enabled
|
|
U0401:00
|
• Vehicle speed signal malfunction
• Engine speed signal malfunction
|
|
U0415:00
|
Control enabled
|
|
U0423:00
|
Control enabled
― If the EPS control module 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
• Other malfunction detected in EPS motor internal circuit
|
|
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
|
—: Not applicable
| Snapshot data item |
Unit |
Data contents |
Data read/use method |
Corresponding data monitor items |
|---|---|---|---|---|
|
AAT
|
°C, °F
|
Ambient air temperature
|
—
|
—
|
|
APP_STATUS
|
Accelerator Pedal Off/
Under 20%/
Over 20%/
FAIL
|
Accelerator pedal position
|
—
|
—
|
|
CEN_TRQ_S
|
Nm
|
Center value of torque sensor
|
—
|
CEN_TRQ_S
|
|
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
|
—
|
—
|
|
ECU_IN_TMP
|
°C, °F
|
ECU internal temperature
|
—
|
ECU_IN_TMP
|
|
ENG_RPM
|
RPM
|
Engine speed
|
—
|
ENG_RPM
|
|
IC_VPWR
|
V
|
Instrument cluster power supply
|
• The EPS 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 EPS control module records the power supply voltage of the instrument cluster when the DTC was detected, and it is displayed in the Mazda Modular Diagnostic System (M-MDS).
|
VPWR*
2
|
|
IG-ON_TIMER
|
hh:mm:ss*
1
|
Elapsed time since ignition was switched ON
|
• The EPS 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 EPS control module records the elapsed time since the ignition was switched ON when the DTC was detected, and it is displayed in the Mazda Modular Diagnostic System (M-MDS).
|
—
|
|
LAS_CUR
|
A
|
Lane-keep assist system control output current
|
—
|
LAS_CUR
|
|
MT_CURRENT
|
A
|
Motor current
|
—
|
MT_CURRENT
|
|
OH_CR_C
|
No/Yes
|
Current overheat protection control (complete)
|
—
|
OH_CR_C
|
|
OH_CR_M
|
No/Yes
|
Current overheat protection control (middle)
|
—
|
OH_CR_M
|
|
OH_HIST_C
|
No/Yes
|
History of overheat protection control (complete)
|
—
|
OH_HIST_C
|
|
OH_HIST_M
|
No/Yes
|
History of overheat protection control (middle)
|
—
|
OH_HIST_M
|
|
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_C
|
|
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.
|
—
|
OH_IG_CNT_M
|
|
PWR_MODE_KEY
|
Key Out/Key Recently Out (Position 0)/Accessory (Position 1)/Post Ignition (Position 2)/Ignition On (Position 2)/Running (Position 2)/Running - Starting
|
• Key Out: Ignition switched to 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
|
• When a DTC is detected, the EPS control module receives the ignition switch condition being detected by the instrument cluster via CAN signals and displays it in the Mazda Modular Diagnostic System (M-MDS).
|
—
|
|
RPM_STATUS
|
Engine Stop/
Under 1500rpm/
Over 1500rpm/
FAIL
|
Engine RPM status
|
• The EPS control module constantly receives the engine speed sent via CAN signal from the instrument cluster.
• If a DTC is detected, the EPS control module records the engine speed when the DTC was detected, and it is displayed in the Mazda Modular Diagnostic System (M-MDS).
|
TACHOMTR
*2
|
|
SHIFT_STATUS
|
P/N
D/
R/
FAIL
|
Shift position status
|
• The EPS control module constantly receives the selector lever position sent via CAN signal from the instrument cluster.
• If a DTC is detected, the EPS control module records the selector lever position when the DTC was detected, and it is displayed in the Mazda Modular Diagnostic System (M-MDS).
|
Not applicable
|
|
STR_ANG
|
°
|
Steering wheel angle
|
—
|
STR_ANG
|
|
STR_ANG_EST
|
°
|
Steering wheel estimated absolute angle
|
—
|
STR_AB_EST
|
|
STR_ROT_SPD
|
°/s
|
Steering wheel rotation speed
|
—
|
STR_ROT_SPD
|
|
STR_TRQ_S_M
|
Nm
|
Steering shaft torque (Main)
|
—
|
STR_TRQ_S_M
|
|
STR_TRQ_S_S
|
Nm
|
Steering shaft torque (Sub)
|
—
|
STR_TRQ_S_S
|
|
TOTAL_DIST
|
km, ft, mi
|
Accumulated total traveled distance from completion of vehicle until EPS control module detects DTC (Odometer value in instrument cluster)
|
The distance traveled when the EPS 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 snapshot data item TOTAL_DIST.
3. Subtract 2 from 1.
|
—
|
|
TOTAL_TIME
|
hh:mm:ss*
1
|
Accumulated total elapsed time since vehicle completion until EPS control module detects a DTC
|
The elapsed time when the EPS 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 snapshot data item TOTAL_TIME.
3. Subtract 2 from 1.
|
TOTAL_TIME
*2
|
|
VPWR
|
V
|
Power supply
|
—
|
VPWR
|
|
VSPD
|
KPH, MPH
|
Vehicle speed
|
—
|
VSPD
|
|
VSPD_STATUS
|
Stop/
0 - 10km/h/
Over 10km/h/
FAIL
|
Vehicle speed status
|
• The EPS control module constantly receives the vehicle speed sent via CAN signal from the instrument cluster.
• If a DTC is detected, the EPS control module records the vehicle speed when the DTC was detected, and it is displayed in the Mazda Modular Diagnostic System (M-MDS).
|
SPEEDOMTR
*2
|
PID/Data Monitor Function
—: Not applicable
| PID name (definition) |
Operation Status (Reference) |
Unit/Operation |
|---|---|---|
| Mazda Modular Diagnostic System (M-MDS) display |
||
|
CEN_TRQ_S
|
• Torque sensor neutral position: Near 0 Nm
|
Nm
|
|
ECU_IN_TMP
|
• Displays temperature of board in EPS control module: -40°C—+215°C {-40°F—419°F}
|
°C, °F
|
|
LAS_CUR
|
• Lane-keep assist system is not operated: 0 A
• Steered: Changes to positive or negative
|
A
|
|
ENG_RPM
|
• Engine stopped: 0 RPM
• Engine rotating at
3,000 RPM: 3,000 RPM
|
RPM
|
|
MT_CURRENT
|
• When not steered: Near 0 A
• Steered: Changes to positive or negative
|
A
|
|
OH_CR_C
|
• Overheat protection control (complete) is operating: Yes
• Overheat protection control (complete) is not operating: No
|
Yes/No
|
|
OH_CR_M
|
• Overheat protection control (middle) is operating: Yes
• Overheat protection control (middle) is not operating: No
|
Yes/No
|
|
OH_HIST_C
|
• Before overheat protection control (complete) has operated: Yes
• Before overheat protection control (complete) has not operated: No
|
Yes/No
|
|
OH_HIST_M
|
• Before overheat protection control (middle) has operated: Yes
• Before overheat protection control (middle) has not operated: No
|
Yes/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
|
—
|
|
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
|
—
|
|
STR_AB_EST
|
• Steering wheel in neutral position (not turned):
0°
• Steered left: Changes to
0°—Positive
• Steered right: Changes to
0°—Negative
|
°
|
|
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
|
°
|
|
STR_ROT_SPD
|
• Not steered: Near 0 °/s
• Steered: Changes according to steering speed
|
°/s
|
|
STR_TRQ_S_M
|
• Not steered: Near 0 Nm
• Steered left: Changes to 0 Nm—Positive
• Steered right: Changes to 0 Nm—Negative
|
Nm
|
|
STR_TRQ_S_S
|
• Not steered: Near 0 Nm
• Steered left: Changes to 0 Nm—Positive
• Steered right: Changes to 0 Nm—Negative
|
Nm
|
|
VPWR
|
• Engine stopped: Approx.
12 V
• Idling: Approx.
14 V
|
V
|
|
VSPD
|
• Vehicle stopped: 0 KPH, 0 MPH
• Vehicle speed
20 km/h {12 mph}: 20 KPH, 12 MPH
|
KPH, MPH
|
External Tester Communication Function
Connections/Communication Contents
| External tester |
||
|---|---|---|
| Mazda modular diagnostic system (M-MDS) |
||
| Connection |
Communication method |
|
|
On-board diagnostic (malfunction detection) function
|
Input/output: CAN_H (HS), CAN_L (HS)
|
Serial communication
|
|
PID/DATA monitor function
|
Input/output: CAN_H (HS), CAN_L (HS)
|
Serial communication
|
| Diagnostic function name |
Signal received |
Signal sent |
|---|---|---|
|
Malfunction detection function
|
DTC verification signal
|
Diagnostic trouble code
|
|
PID/DATA monitor function
|
Command signal to read selected monitor item
|
Monitored data for requested monitor item
|