Diagnostic Procedure

DTC C1020-68; ERROR SIGNAL RECEIVED FROM DSC HU/CM - DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY DSC HU/CM DTCs Retrieve the DSC HU/CM DTCs using the M-MDS. (See DTC INSPECTION [DYNAMIC STABILITY CONTROL (DSC)] .) Are any DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)] .)
1		No	Go to the next step.
2	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear the DTC for the electric parking brake control module using the M-MDS. (See CLEARING DTC [ELECTRIC PARKING BRAKE] .) Perform the following procedure 3 times or more. Pull up the electric parking brake switch to operate the electric parking brake. Press down the electric parking brake switch to release the electric parking brake. Retrieve the electric parking brake control module DTCs using the M-MDS. (See DTC INSPECTION [ELECTRIC PARKING BRAKE] .) Is the same DTC displayed?	Yes	Replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION .)
2		No	Go to the next step.
3	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [ELECTRIC PARKING BRAKE] .)
3		No	DTC troubleshooting completed.