Pinpoint Test B : U3003:17
- Refer to Vehicle Dynamic Suspension
for schematic and connector information.
Normal Operation and Fault Conditions
The VDM requires an operating voltage that is between 9 and 16 volts. The VDM receives this voltage from the BJB. The VDM has a single ground circuit. Excessive resistance or an open in one or more of these circuits, a discharged battery or a inoperative charging system results in the VDM setting a DTC.
An overcharging condition in the charging system results in the VDM setting a DTC. This DTC may also set in the VDM due to battery charging or vehicle jump starting events.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition VDM U3003:17 Battery Voltage: Circuit Voltage Above Threshold This DTC sets in continuous memory and on-demand if the voltage supplied to the VDM is above 16 volts for more than 3 seconds Possible Sources
- Charging system concern
- VDM
- BJB
- B1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Are any Charging System Diagnostic Trouble Codes (DTCs) present in more than one module?
Yes DIAGNOSE the vehicle charging concern. REFER to: Charging System - 2.7L EcoBoost (238kW/324PS)/3.5L EcoBoost (272kW/370PS) . REFER to: Charging System - 3.3L Duratec-V6/5.0L 32V Ti-VCT . No GO to B2 - B2 CHECK THE BATTERY VOLTAGE
- Turn off all interior lights, exterior lights and accessories.
-
NOTE: Do not allow the engine speed to increase above 2, 000 RPM while performing this step or the generator may self-excite and result in default charging system output voltage. If engine speed goes above 2, 000 RPM, turn the engine off and restart the engine before performing this step.
Start and run the engine at approximately 1, 500 RPM for 3 minutes while monitoring the battery voltage.
Is the battery voltage between 13 and 15.2 volts?
Yes GO to B3 No DIAGNOSE the overcharging condition. REFER to: Charging System - 3.0L Power Stroke Diesel . - B3 RECHECK THE VDM (VEHICLE DYNAMICS CONTROL MODULE) FOR DTC (DIAGNOSTIC TROUBLE CODE) U3003:17
- Ignition OFF.
- Ignition ON.
- Using a diagnostic scan tool, clear the VDM Diagnostic Trouble Codes (DTCs).
- Ignition OFF.
- Ignition ON.
- Using a diagnostic scan tool, carry out the VDM self-test.
Is DTC U3003:17 still present?
Yes GO to B4 No The system is operating normally at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle. - B4 VERIFY ALL WIRING CONNECTIONS
- Ignition OFF.
- Disconnect VDM C4396A and C4396B.
- Disconnect BJB C1035B.
- Using a good light source, inspect all disconnected electrical connectors for the following:
- corrosion - install new connector or terminal and clean the module pins
- damaged or bent pins - install new terminals or pins
- pushed-out pins - install new pins as necessary
- spread terminals - install new terminals as necessary
Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals?
Yes GO to B5 No REPAIR the connector or terminals. Refer to Connector Repair Procedures for schematic and connector information. - B5 CHECK FOR CORRECT VDM (VEHICLE DYNAMICS CONTROL MODULE) OPERATION
- Connect BJB C1035B. Make sure it seats and latches correctly.
- Connect VDM C4396A and C4396B. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no Technical Service Bulletins (TSBs) exist for this concern, INSTALL a new VDM module. REFER to: Vehicle Dynamics Control Module (VDM) . No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.