Pinpoint Test R : DTC (Diagnostic Trouble Code) U3003:16

WARNING: This page is about a different car, the 2020 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.

R1 CHECK THE IPMA DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs). Repeat the IPMA module self-test.
Is DTC U3003:16 still present?

Yes GO to R2

No The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

R2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) IN THE PCM
- Using a diagnostic scan tool, perform the PCMKOEO self-test.
Are any charging system Diagnostic Trouble Codes (DTCs) recorded?

Yes REFER to the appropriate Electronic Engine Controls article.

No GO to R3

R3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
- Check the battery condition and verify the battery is fully charged. REFER to: Battery .
Is the battery OK and fully charged?

Yes GO to R4

No REFER to: Battery Charging .

R4 CHECK THE IPMA VOLTAGE SUPPLY

Ignition OFF.

Disconnect: IPMA module C9039.

Ignition ON.

Measure and record the voltage at the battery.

Measure:

Positive Lead	Measurement / Action	Negative Lead
Refer to C9039-4	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage within 0.2 volt of the recorded battery voltage?

Yes

GO to R5

No	REPAIR the circuit.

R5 CHECK THE IPMA MODULE GROUND CIRCUIT

Measure:

Positive Lead	Measurement / Action	Negative Lead
Refer to C9039-4	Courtesy of FORD MOTOR COMPANY	Refer to C9039-5

Is the voltage within 0.2 volts of the recorded battery voltage?

Yes

GO to R6

No	REPAIR the circuit.

R6 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the IPMA 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 IPMA connectors. 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 IPMA. REFER to: Image Processing Module A (IPMA) .

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.

DTC	Description	Fault Trigger Conditions
U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets as a continuous memory and on-demand DTC if the IPMA detects high battery voltage above 16.5 volts.