E 450 V8-5.4L (2009)
GO to O8.
No
REPAIR circuit CLS34 (GY) for a short to ground. CLEAR the DTCs. REPEAT the self-test.
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O4 CHECK THE REAR PARKING LAMPS VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
-
Ignition OFF.
-
Disconnect: SJB C2280d.
-
Ignition ON.
-
Do the rear parking lamps continue to illuminate?
Yes
For wagon, REPAIR circuit CLS30 (VT/WH) for a short to voltage. TEST the system for normal operation.
For cutaway and stripped chassis vehicles, GO to O5.
No
GO to O6.
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O5 ISOLATE THE SHORT TO VOLTAGE IN THE REAR PARKING LAMPS VOLTAGE SUPPLY CIRCUIT
-
Ignition OFF.
-
Disconnect: Body Builder C432.
-
Ignition ON.
-
Do the rear parking lamps continue to illuminate?
Yes
The vehicle is operating correctly. REFER to the body builder information to continue diagnosis.
No
REPAIR circuit CLS30 (VT/WH) for a short to voltage. TEST the system for normal operation.
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O6 CHECK THE FRONT PARKING LAMPS VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
-
Ignition OFF.
-
Disconnect: SJB C2280e.
-
Ignition ON.
-
Do the front parking lamps continue to illuminate?
Yes
For wagon, REPAIR circuit CLS30 (VT/WH) for a short to voltage. TEST the system for normal operation.
For cutaway and stripped chassis vehicles, GO to O7.
No
GO to O8.
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