E 450 V8-5.4L (2009)
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Use the recorded results from the SJB self-test.
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Is DTC B2A35 present?
Yes
GO to D2.
No
GO to D4.
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D2 CHECK THE SJB INTERIOR COURTESY LAMP OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
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Disconnect: SJB C2280a.
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Ignition ON.
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Observe the interior courtesy lamps.
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Do the interior courtesy lamps continue to illuminate?
Yes
For cutaway vehicles, GO to D3.
For all other vehicle types, REPAIR circuit VLN33 (GY/VT) for a short to voltage. CLEAR the DTCs. REPEAT the self-test.
No
GO to D9.
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D3 ISOLATE THE SHORT TO VOLTAGE
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Ignition OFF.
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Disconnect: Body Builder C3359.
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Ignition ON.
-
Observe the front interior courtesy lamp.
-
Does the front interior courtesy lamp continue to illuminate?
Yes
REPAIR circuit VLN33 (GY/VT) for a short to voltage. CLEAR the DTCs. REPEAT the self-test.
No
The vehicle is operating correctly. REFER to the body builder information to continue diagnosis.
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D4 CHECK THE SJB INSTRUMENT PANEL DIMMER SWITCH DOME LAMP REQUEST PID
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Ignition ON.
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Enter the following diagnostic mode on the scan tool: SJB DataLogger.
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Monitor the SJB instrument panel dimmer switch dome lamp request PID (DOMELM_SW).
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Does the PID indicate the instrument panel dimmer switch is in the DOME LAMP position?
Yes
GO to D5.
No
