F 350 2WD Super Duty V10-6.8L VIN S (1999)
Audible Warning Device: Initial Inspection and Diagnostic Overview
Motorhome
1. Verify the concern by operating the warning buzzer system to duplicate the concern.
2. Inspect to determine if one of the electrical concerns applies.
VISUAL INSPECTION CHART
Electrical
^
Fuse 14 (10 A)
^
Loose or corroded connections
^
Circuit
3. If the concern(s) remains after the inspection, determine the symptom(s) and proceed to Symptom Chart. See: Symptom Related Diagnostic
Procedures
Super Duty Series
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical and electrical damage.
VISUAL INSPECTION CHART
Mechanical
^
Key-in-ignition warning switch
^
Door open warning lamp switch
^
Safety belt warning indicator switch
Electrical
^
Fuse(s)
^
Damaged wiring harness
^
Loose or corroded connections
^
Generic Electronic Module (GEM)
3. If the concern remains after the inspection, connect New Generation STAR (NGS) Tester to the Data Link Connector (DLC) located beneath the
instrument panel and select the vehicle to be tested from the NGS menu. If NGS Tester does not communicate with the vehicle:
^
check that the program card is properly installed.
^
check the connections to the vehicle.
^
check the ignition switch position.
4. If NGS Tester still does not communicate with the vehicle, refer to the New Generation STAR Tester manual.
5. Perform the DATA LINK DIAGNOSTIC TEST. If the NGS responds with:
^
CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Information Bus.
^
NO RESP/NOT EQUIP for GEM, go to Pinpoint Test E. See: Pinpoint Tests/Test E: A Chime Does Not Operate Properly - Air Bag
^
SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs, and perform self-test
diagnostics for the GEM.
NOTE: For vehicles built prior to February 5, 1998, the following criteria must be met when performing the GEM On-Demand Self-Test:
headlamps and parklamps must be off and the power windows must be completely up. Failure to meet this criteria will result in DTCs B1577
and B2357 being set. For vehicles built after February 5, 1998, the following criteria must be met when performing the GEM On-Demand
Self-Test: headlamps and parklamps must be on. Failure to meet this criteria will result in DTC B1575 being set.
6. If the DTCs retrieved are related to the concern, go to GEM Module Diagnostic Trouble Code (DTC) Index to continue diagnostics. See:
Component Tests and General Diagnostics/Super Duty Series/GEM Diagnostic Trouble Code (DTC) Index
7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics. See: Symptom Related Diagnostic Procedures
