F 150 4WD V8-4.6L VIN 8 (2010)
-------------------------------------------------
K3 CHECK THE STOPLAMP SWITCH
-
Disconnect: Stoplamp Switch C278.
-
Do the stoplamps continue to illuminate?
Yes
GO to K4.
No
INSTALL a new stoplamp switch. REFER to Stoplamp Switch See: Brake Light Switch/Service and Repair. CLEAR the DTCs. REPEAT the self-test.
-------------------------------------------------
K4 ISOLATE THE SHORT TO VOLTAGE
-
Disconnect: BJB Fuse 82 (10A).
-
Do the stoplamps continue to illuminate?
Yes
GO to K6.
No
If the vehicle is equipped with a TBC module, GO to K5.
If the vehicle is not equipped with a TBC module, REPAIR circuit CBB82 (GN) for a short to voltage. TEST the system for normal operation.
-------------------------------------------------
K5 CHECK THE TBC MODULE
-
Connect: BJB Fuse 82 (10A).
-
Disconnect: TBC Module C2142.
-
Do the stoplamps continue to illuminate?
Yes
REPAIR circuit CBB82 (GN) for a short to voltage. TEST the system for normal operation.
No
INSTALL a new TBC module. CLEAR the DTCs. REPEAT the self-test.
-------------------------------------------------
K6 CHECK THE PCM
-
Disconnect: PCM C175b.
-
Do the stoplamps continue to illuminate?
Yes
GO to K7.
No
