Electric Parking Brake System Symptom Troubleshooting - Brake system indicator (red) indicator does not come on
Brake system indicator (red) indicator does not come on
1.
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 2.
     
NO
     
     
     
2.
Open wire check (PARK LAMP line):

Open 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. 16
Test point 2
Gauge control module connector A (32P) No. 10

Is there continuity?

     
YES
     
     
     
Check for loose terminals in the VSA modulator-control unit 46P connector. If the symptom/indication is still present, replace the VSA modulator-control unit.?
     
NO
     
     
     
Repair an open in the wire between the VSA modulator-control unit and the gauge control module.?