DTC U3001:04 [ELECTRIC PARKING BRAKE]


id040257255800

Description

Electric parking brake control module internal malfunction

Detection condition
•  Malfunction in the electric parking brake control module is detected.
Fail-safe
Not applicable
Possible cause
•  Electric parking brake control module malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action

1
VERIFY IF THE ELECTRIC PARKING BRAKE WARNING LIGHT IS TURNED ON
•  Verify if the electric parking brake warning light is turned on.
•  Is the electric parking brake warning light turned on?
Yes
Go to the next step.
No
Replace the electric parking brake control module, then go to the next step.
2
VERIFY IF MALFUNCTIONING LOCATION IS ELECTRIC PARKING BRAKE CONTROL MODULE DEPENDING ON REPEATABILITY
•  Clear the DTC for the electric parking brake control module using the M-MDS.
•  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.
•  Are DTC U3001:04 and/or C1128:29 displayed?
Yes
If DTC U3001:04 is displayed:
•  Replace the electric parking brake control module, then go to the next step.
If DTC U3001:04 and C1128:29 are displayed:
•  Repair or replace the malfunctioning part according to DTC C1128:29 troubleshooting.
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.
No
DTC troubleshooting completed.