Is the resistance less than 5 ohms?
Yes
REPAIR or INSTALL a new parking brake switch as needed. CLEAR the DTCs. REPEAT the self-test.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
L7
CHECK THE CIRCUIT BETWEEN THE PARKING BRAKE SWITCH AND THE GEM FOR A SHORT TO GROUND
Parking Brake Switch C318
GEM C293
Measure the resistance between the GEM C293 Pin 4, Circuit 128 (VT/YE), harness side and ground.
Is the resistance greater than 10,000 ohms?
Yes
REPAIR or INSTALL a new parking brake switch as needed. CLEAR the DTCs. REPEAT the self-test.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
L8
CHECK CIRCUIT 128 (VT/YE) FOR SHORT TO BATTERY BETWEEN THE GEM AND THE INSTRUMENT CLUSTER
GEM C352
Instrument Cluster C251
Measure the voltage between GEM C352 Pin 13, Circuit 128 (VT/YE), harness side and ground.
Page 23 of 32
1999 Mustang Workshop Manual
1/18/2013
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSXB/~MUS~LEN/20/...
