Pinpoint Test A: U3003:16: Notes
Refer to Vehicle Dynamic Systems for schematic and connector information.
Normal Operation and Fault Conditions
The ABS module, hydraulic pump and solenoid valves require an operating voltage that is between 9.6 and 16 volts. The ABS module receives this voltage from the front BJB and 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 ABS module setting a DTC.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U3003:16 | Battery Voltage: Circuit Voltage Below Threshold | This DTC sets in continuous memory and on-demand if the voltage supplied to the ABS module falls below 9.6 volts. |
Possible Causes
- Fuses
- Wiring, terminals or connectors
- Charging system concern
- Battery
- ABS module
Visual Inspection and Diagnostic Pre-checks
- Make sure both battery terminals and cables are free of any corrosion and other contaminants.
- Make sure both battery terminals are tightened to their correct torque specifications.
- Make sure the front BJB fuses 16 (40A), 17 (40A) and 22 (5A) are OK.