E 450 V8-5.4L (2009)
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SJB
PINPOINT TEST G: THE BATTERY SAVER DOES NOT DEACTIVATE AFTER TIME-OUT
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G1 CHECK THE SJB IGNITION SWITCH 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 ignition switch PIDs (IGN_A_ECU, IGN_O_ECU, IGN_R_ECU and IGN_S_ECU) while rotating the ignition switch through all
positions.
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Do the ignition switch PIDs agree with the ignition switch positions?
Yes
GO to G2.
No
REFER to Steering Column. See: Steering and Suspension/Steering/Steering Column/Testing and Inspection
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G2 CHECK THE DEMAND LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
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Ignition OFF.
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Disconnect: SJB C2280d.
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Ignition ON.
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Switch any demand lamp on.
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Does the demand lamp illuminate?
Yes
For cutaway vehicles, GO to G3.
For stripped chassis vehicles, GO to G4.
For all other vehicles, REPAIR circuit CLN09 (YE/GN) for a short to voltage. TEST the system for normal operation.
No
GO to G5.
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G3 ISOLATE THE SHORT TO VOLTAGE (CUTAWAY VEHICLES)
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Ignition OFF.
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Disconnect: Body Builder C3359.
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Ignition ON.
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Switch the front demand lamp on.
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Does the demand lamp illuminate?
Yes
REPAIR circuit CLN09 (YE/GN) for a short to voltage. TEST the system for normal operation.
No
The vehicle is operating correctly. REFER to the body builder information to continue diagnosis.
