DTC INSPECTION [DSC HU/CM]

• The DSC HU/CM 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/CM

― 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 laser sensor does not store the DTC. (See PID/DATA MONITOR TABLE [DSC HU/CM].)

• Snapshot data items are not displayed, according to detected DTC.

Snapshot data item	Unit	Definition	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	Pa, 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	Configuration status	—	—
ECT_STATUS	Under 0 degrees C/ 0 - Under 80 degrees C/ Over 80 degrees C/ FAIL	Engine coolant temperature status	—	—
EDC	Inactive/Active	Engine drag control	—	—
IC_VPWR	V	Instrument cluster power supply	• The DSC HU/CM 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/CM records the power supply voltage of the instrument cluster when the DTC was detected, and it is displayed in the M-MDS.	VPWR^*1
IG-ON_TIMER	hh:mm:ss^*2	Elapsed time since ignition was switched ON Note • The instrument cluster records the elapsed time since the ignition was switched ON.	• The DSC HU/CM 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/CM 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	—	PMP_MT
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 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/CM constantly receives the ignition switch status sent via CAN signal from the instrument cluster. • If a DTC is detected, the DSC HU/CM records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.	—
RPM_STATUS	Engine Stop/ Under 1500 rpm/ Over 1500 rpm/ FAIL	Engine RPM status	• The DSC HU/CM constantly receives the ignition switch status sent via CAN signal from the instrument cluster. • If a DTC is detected, the DSC HU/CM records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.	TACHOMTR^*1
SHIFT_STATUS	P/N D/ R/ FAIL	Shift position status	• The DSC HU/CM constantly receives the selector lever position sent via CAN signal from the instrument cluster. • If a DTC is detected, the DSC HU/CM 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)	—	STR_ANG_C
TCS	Inactive/Active	Traction control system	—	—
TOTAL_DIST	km, ft, mi	Accumulated total traveled distance from completion of vehicle until DSC HU/CM detects DTC (Odometer value in instrument cluster)	The distance traveled when the DSC HU/CM 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^*2	Accumulated total elapsed time since vehicle completion until DSC HU/CM 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/CM 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.	TOTAL_TIME^*1
VPWR	V	Power supply	—	VPWR_B_SOL
VSPD	KPH, MPH	Vehicle speed	—	VSPD
VSPD_STATUS	Stop/ 0 - 10 km/h/ Over 10 km/h/ FAIL	Vehicle speed status	• The DSC HU/CM constantly receives the vehicle speed sent via CAN signal from the instrument cluster. • If a DTC is detected, the DSC HU/CM records the vehicle speed when the DTC was detected, and it is displayed in the M-MDS.	SPEEDOMTR^*1
YAW_RATE_R	°/s	Yaw rate (raw value)	—	YAW_RATE_R

Snapshot data item

Unit

Definition

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

Pa, 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

Configuration status

—

ECT_STATUS

Under 0 degrees C/

0 - Under 80 degrees C/

Over 80 degrees C/

FAIL

Engine coolant temperature status

—

EDC

Inactive/Active

Engine drag control

—

IC_VPWR

Instrument cluster power supply

• The DSC HU/CM 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/CM records the power supply voltage of the instrument cluster when the DTC was detected, and it is displayed in the M-MDS.

VPWR^*1

IG-ON_TIMER

hh:mm:ss^*2

Elapsed time since ignition was switched ON

Note

• The instrument cluster records the elapsed time since the ignition was switched ON.

• The DSC HU/CM 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/CM 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

Lateral acceleration (raw value)

—

LAT_ACCL_R

LON_ACCL_R

Longitudinal acceleration (raw value)

—

LON_ACCL_R

PMP_MT

Off/On

Pump motor

—

PMP_MT

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 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/CM constantly receives the ignition switch status sent via CAN signal from the instrument cluster.

• If a DTC is detected, the DSC HU/CM records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.

—

RPM_STATUS

Engine Stop/

Under 1500 rpm/

Over 1500 rpm/

FAIL

Engine RPM status

• The DSC HU/CM constantly receives the ignition switch status sent via CAN signal from the instrument cluster.

• If a DTC is detected, the DSC HU/CM records the ignition switch status when the DTC was detected, and it is displayed in the M-MDS.

TACHOMTR^*1

SHIFT_STATUS

P/N

FAIL

Shift position status

• The DSC HU/CM constantly receives the selector lever position sent via CAN signal from the instrument cluster.

• If a DTC is detected, the DSC HU/CM 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)

—

STR_ANG_C

TCS

Inactive/Active

Traction control system

—

TOTAL_DIST

km, ft, mi

Accumulated total traveled distance from completion of vehicle until DSC HU/CM detects DTC (Odometer value in instrument cluster)

The distance traveled when the DSC HU/CM 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^*2

Accumulated total elapsed time since vehicle completion until DSC HU/CM 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/CM 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.

TOTAL_TIME^*1

VPWR

Power supply

—

VPWR_B_SOL

VSPD

KPH, MPH

Vehicle speed

—

VSPD

VSPD_STATUS

Stop/

0 - 10 km/h/

Over 10 km/h/

FAIL

Vehicle speed status

• The DSC HU/CM constantly receives the vehicle speed sent via CAN signal from the instrument cluster.

• If a DTC is detected, the DSC HU/CM records the vehicle speed when the DTC was detected, and it is displayed in the M-MDS.

SPEEDOMTR^*1

YAW_RATE_R

°/s

Yaw rate (raw value)

—

YAW_RATE_R