Electric Parking Brake System Symptom Troubleshooting - Brake system indicator (red) indicator does not go off
Brake system indicator (red) indicator does not go off
1.
DTC check:

DTC check
?1.
Turn the vehicle to the ON mode.

?2.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
     

Is DTC indicated?

     
YES
     
     
     
Go to indicated DTC's troubleshooting.?
     
NO
     
     
     
Go to step 2.
2.
Gauge control module operation check:

Gauge control module operation check
?1.
Do the gauge control module self-diagnostic function.

Is the gauge control module OK?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
3.
Shorted wire check (PARK LAMP line):

Shorted wire check (PARK LAMP line)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connectors.
VSA modulator-control unit 46P connector
Gauge control module connector A (32P)

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
VSA modulator-control unit 46P connector: disconnected
Gauge control module connector A (32P): disconnected
Test point 1
VSA modulator-control unit 46P connector No. 29
Test point 2
Body ground

Is there continuity?

     
YES
     
     
     
Repair a short to body ground in the wire between the VSA modulator-control unit and the gauge control module.?
     
NO
     
     
     
The PARK LAMP wire is OK. Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit.?