Fusion FWD V6-3.5L (2010)
GO to L4.
No
INSTALL a new stoplamp switch. REFER to Stoplamp Switch See: Brake Light Switch/Service and Repair. CLEAR the DTCs. REPEAT the self-test.
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L4 CHECK THE PCM
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Disconnect: PCM C175b.
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Do the stoplamps continue to illuminate?
Yes
GO to L5.
No
GO to L6.
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L5 CHECK THE STOPLAMP SWITCH OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
-
Disconnect: SJB C2280b.
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Does the high mounted stoplamp continue to illuminate?
Yes
REPAIR circuit CCB08 (VT/WH) for a short to voltage. CLEAR the DTCs. REPEAT the self-test.
No
GO to L7.
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L6 CHECK FOR CORRECT PCM OPERATION
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Disconnect all the PCM connectors.
-
Check for:
-
corrosion
-
damaged pins
-
pushed-out pins
-
Connect all the PCM connectors and make sure they seat correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new PCM. REFER to Computers and Control Systems. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the
self-test.
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L7 CHECK FOR CORRECT SJB OPERATION