Pinpoint Test BW: U3003:16
- Refer to INSTRUMENT CLUSTER
for schematic and connector information.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition IPC U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in continuous memory and on-demand in the IPC if the IPC detects battery voltage below 9 volts when the engine has been running for longer than 1 second. Possible Sources
- Wiring, terminals or connectors
- High circuit resistance
- Charging system concern
- BCM
- IPC
- BW1 CARRY OUT THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- Using a diagnostic scan tool, perform the IPC self-test.
Is DTC U3006:16 still present?
Yes GO to BW2 No The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition. - BW2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) IN THE BCM (BODY CONTROL MODULE)
- Using a diagnostic scan tool, perform the BCM on-demand self-test.
Are any charging system Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: BODY CONTROL MODULE (BCM) . No GO to BW3 - BW3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
- Check the battery condition and verify the battery is fully charged.
Is the battery OK and fully charged?
Yes GO to BW4 No If the battery is discharged, DIAGNOSE the cause of the low battery condition. REFER to: BATTERY . If the battery condition fails, INSTALL a new battery. REFER to BATTERY - 2.0L DURATEC-HE (110KW/150PS) - MI4 or BATTERY - 2.5L DURATEC (125KW/170PS) . - BW4 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) VOLTAGE PID (PARAMETER IDENTIFICATION)
- Measure and record the voltage at the battery.
- Using a diagnostic scan tool, view the IPC Parameter Identifications (PIDs).
- Monitor the IPC voltage (MAINECUV) PID
Is the voltage PID within 0.2 volt of the recorded battery voltage?
Yes GO to BW7 No GO to BW5 - BW5 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) VOLTAGE SUPPLY AT THE IPC (INSTRUMENT PANEL CLUSTER)
- Ignition OFF.
- Disconnect IPC C220.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C220-8 Ground
Is the voltage greater than 11 volts?
Yes GO to BW6 No REPAIR the circuit for high resistance. - BW6 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) GROUND
Is the voltage greater than 11 volts?
Yes GO to BW7 No REPAIR the circuit for high resistance. - BW7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
- Ignition OFF.
- Disconnect and inspect the IPC connector.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the IPC connector. Make sure it seats and latches 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 service articles address this concern, INSTALL a new IPC. Refer to Instrument Panel Cluster (IPC) . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.