2010 Cadillac CTS Sedan AWD V6-3.6L Page 706
5. Test for infinite resistance between the signal circuits listed below and ground:
* Terminal 1
* Terminal 2
* Terminal 3
* Terminal 7
瀚慖f less than the specified value, test the park brake signal circuit for a short to ground.
6. Test for less than 5 Ohms between the following signal circuit terminals:
* Electric parking brake switch harness terminal 1 and the electric parking brake control module terminal N
* Electric parking brake switch harness terminal 2 and the electric parking brake control module terminal C
* Electric parking brake switch harness terminal 3 and the electric parking brake control module terminal B
* Electric parking brake switch harness terminal 7 and the electric parking brake control module terminal D
瀚慖f greater than the specified range, test the signal circuit for an open/high resistance.
7. If all circuits test normal, test or replace the S91 Electric Parking Brake Switch. If DTC resets, replace the K83 Electric Parking Brake
Control Module.
C0293 08
Remove the EPB fuse and reinstall. Verify DTC C0293 08 is not set.
If DTC C0293 08 is set replace the electric parking brake switch.
Component Testing
1. Ignition OFF, disconnect the harness connector at the electric parking brake switch.
2. Test for infinite resistance between the terminals listed below with the switch in the inactive state:
* B+ terminal 4 and the park brake switch signal terminal 1
* B+ terminal 4 and the park brake switch signal terminal 2
* B+ terminal 5 and the park brake switch signal terminal 1
* B+ terminal 5 and the park brake switch signal terminal 2
* Park brake switch signal terminal 3 and the park brake switch signal terminal 1
* Park brake switch signal terminal 3 and the park brake switch signal terminal 2
* Park brake switch signal terminal 7 and the park brake switch signal terminal 1
* Park brake switch signal terminal 7 and the park brake switch signal terminal 2
瀚慖f less than the specified range, replace the electric parking brake switch.
3. Test for less than 5 Ohms between the terminals listed below with the switch in the inactive state:
* Park brake switch signal terminal 1 and terminal 2
* B+ terminal 4 and park brake switch signal terminal 7
* B+ terminal 5 and park brake switch signal terminal 3
瀚慖f greater than the specified range, replace the electric parking brake switch.
4. Test for less than 5 Ohms between the terminals listed below with the switch in the apply position:
* Park brake switch signal terminal 1 and terminal 2
* B+ terminal 4 and park brake switch signal terminal 1
* B+ terminal 4 and park brake switch signal terminal 2
* B+ terminal 5 and park brake switch signal terminal 3
瀚慖f greater than the specified range, replace the electric parking brake switch.
5. Test for less than 5 Ohms between the terminals listed below with the switch in the release position:
* Park brake switch signal terminal 1 and terminal 2
* B+ terminal 5 and park brake switch signal terminal 1
* B+ terminal 5 and park brake switch signal terminal 2
* B+ terminal 4 and park brake switch signal terminal 7
瀚慖f greater than the specified range, replace the electric parking brake switch.
