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DTC C0001:01, C0002:01, C0003:01, C0004:01, C0010:01, C0011:01, C0014:01, C0015:01, C0018:01, C0019:01, C001C:01 OR C001D:01 [DSC HU/CM]

id040262003200

Outline

System malfunction location

DTC C0001:01

Traction control solenoid valve (LF/RR)

DTC C0002:01

Traction control solenoid valve (RF/LR)

DTC C0003:01

Stability control solenoid valve (LF/RR)

DTC C0004:01

Stability control solenoid valve (RF/LR)

DTC C0010:01

Inlet solenoid valve (LF)

DTC C0011:01

Outlet solenoid valve (LF)

DTC C0014:01

Inlet solenoid valve (RF)

DTC C0015:01

Outlet solenoid valve (RF)

DTC C0018:01

Inlet solenoid valve (LR)

DTC C0019:01

Outlet solenoid valve (LR)

DTC C001C:01

Inlet solenoid valve (RR)

DTC C001D:01

Outlet solenoid valve (RR)

Detection condition

•  Malfunction detected in the DSC HU/CM solenoid valve or internal circuit by the DSC HU/CM on-board diagnostic function

Fail-safe

Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”.(See DTC TABLE [DSC HU/CM (E)].)

Possible cause

•  DSC HU/CM malfunction

―  Solenoid valve malfunction

―  Malfunction in solenoid valve internal circuit

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	DTC C0001:01	Traction control solenoid valve (LF/RR)
Detection condition	• Malfunction detected in the DSC HU/CM solenoid valve or internal circuit by the DSC HU/CM on-board diagnostic function
Fail-safe	Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”.(See DTC TABLE [DSC HU/CM (E)].)
Possible cause	• DSC HU/CM malfunction ― Solenoid valve malfunction ― Malfunction in solenoid valve internal circuit
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action

1

VERIFY SOLENOID VALVE OPERATION

•  Verify if the solenoid valve operates using the simulation item corresponding to the displayed DTC.
(See SIMULATION INSPECTION.)

(See SIMULATION TABLE [DSC HU/CM].)

―  C0001:01

•  TCS_ISOLAT_VLV_1

―  C0002:01

•  TCS_ISOLAT_VLV_2

―  C0003:01

•  TCS_SUPPLY_1

―  C0004:01

•  TCS_SUPPLY_2

―  C0010:01

•  TCS_ISOLAT_VLV_L/F

―  C0011:01

•  TCS_DUMP_L/F

―  C0014:01

•  TCS_ISOLAT_VLV_R/F

―  C0015:01

•  TCS_DUMP_R/F

―  C0018:01

•  TCS_ISOLAT_VLV_L/R

―  C0019:01

•  TCS_DUMP_L/R

―  C001C:01

•  TCS_ISOLAT_VLV_R/R

―  C001D:01

•  TCS_DUMP_R/R

•  Does the solenoid valve operate?

Yes

Go to the next step.

No

Replace the DSC HU/CM and perform the repair completion verification procedure.

(See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (E)].)

(See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)

Repair completion verification 1

VERIFY THAT VEHICLE IS REPAIRED

•  Install/connect the part removed/disconnected during the troubleshooting procedure.

•  Clear the DTC recorded in the memory.
(See CLEARING DTC.)

•  Perform the DTC inspection for the DSC HU/CM.
(See DTC INSPECTION.)

•  Is the same Pending DTC present?

Yes

Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.

(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

•  If the malfunction recurs, replace the DSC HU/CM, then go to the next step.
(See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (E)].)

(See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)

No

Go to the next step.

Repair completion verification 2

VERIFY IF OTHER DTCs DISPLAYED

•  Perform the DTC inspection.
(See DTC INSPECTION.)

•  Are any DTCs displayed?

Yes

Repair the malfunctioning location according to the applicable DTC troubleshooting.

No

DTC troubleshooting completed.

System malfunction location	DTC C0001:01	Traction control solenoid valve (LF/RR)
	DTC C0002:01	Traction control solenoid valve (RF/LR)
	DTC C0003:01	Stability control solenoid valve (LF/RR)
	DTC C0004:01	Stability control solenoid valve (RF/LR)
	DTC C0010:01	Inlet solenoid valve (LF)
	DTC C0011:01	Outlet solenoid valve (LF)
	DTC C0014:01	Inlet solenoid valve (RF)
	DTC C0015:01	Outlet solenoid valve (RF)
	DTC C0018:01	Inlet solenoid valve (LR)
	DTC C0019:01	Outlet solenoid valve (LR)
	DTC C001C:01	Inlet solenoid valve (RR)
	DTC C001D:01	Outlet solenoid valve (RR)
Detection condition	• Malfunction detected in the DSC HU/CM solenoid valve or internal circuit by the DSC HU/CM on-board diagnostic function
Fail-safe	Refer to “DTC Table” and “Fail-safe Function Malfunction Contents Table”.(See DTC TABLE [DSC HU/CM (E)].)
Possible cause	• DSC HU/CM malfunction ― Solenoid valve malfunction ― Malfunction in solenoid valve internal circuit
System wiring diagram	Not applicable
Connector diagram	Not applicable

Step	Inspection	Results	Action
1	VERIFY SOLENOID VALVE OPERATION • Verify if the solenoid valve operates using the simulation item corresponding to the displayed DTC. (See SIMULATION INSPECTION.) (See SIMULATION TABLE [DSC HU/CM].) ― C0001:01 • TCS_ISOLAT_VLV_1 ― C0002:01 • TCS_ISOLAT_VLV_2 ― C0003:01 • TCS_SUPPLY_1 ― C0004:01 • TCS_SUPPLY_2 ― C0010:01 • TCS_ISOLAT_VLV_L/F ― C0011:01 • TCS_DUMP_L/F ― C0014:01 • TCS_ISOLAT_VLV_R/F ― C0015:01 • TCS_DUMP_R/F ― C0018:01 • TCS_ISOLAT_VLV_L/R ― C0019:01 • TCS_DUMP_L/R ― C001C:01 • TCS_ISOLAT_VLV_R/R ― C001D:01 • TCS_DUMP_R/R • Does the solenoid valve operate?	Yes	Go to the next step.
1		No	Replace the DSC HU/CM and perform the repair completion verification procedure. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (E)].) (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
Repair completion verification 1	VERIFY THAT VEHICLE IS REPAIRED • Install/connect the part removed/disconnected during the troubleshooting procedure. • Clear the DTC recorded in the memory. (See CLEARING DTC.) • Perform the DTC inspection for the DSC HU/CM. (See DTC INSPECTION.) • Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION [L.H.D. (E)].) (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs DISPLAYED • Perform the DTC inspection. (See DTC INSPECTION.) • Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.