Pinpoint Test K : DTC U3003:16 Or U3003:17

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

K1 RETRIEVE ALL CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS) IN ALL MODULES
- Ignition ON.
- Using a diagnostic scan tool, retrieve ALL Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Is DTC B1317, B1318, B1676, U3003:16 or U3003:17 present in one or more modules AND are any charging system Diagnostic Trouble Codes (DTCs) present in the PCM?

Yes DIAGNOSE the charging system. Refer to the appropriate information in BATTERY, MOUNTING AND CABLES .

No GO to K2

K2 TEST BATTERY CONDITION

Ignition OFF.

Carry out the Battery Condition Test. REFER to: Battery .

Did the battery pass the condition test?

Yes	If the battery passed the condition test but required a recharge, DIAGNOSE the charging system. REFER to: Charging System . CLEAR all Continuous Memory Diagnostic Codes (CMDTCs).If the battery passed the condition test and did not require a recharge, GO to K3

No	INSTALL a new battery. REFER to: Battery . CLEAR all Continuous Memory Diagnostic Codes (CMDTCs).

K3 CHECK THE CHARGING SYSTEM VOLTAGE

Start the engine.

Measure the voltage of the battery.

For DTC U3003:17, turn off all accessories while measuring the battery voltage.

For DTC U3003:16, turn on headlights and HVAC fan on high while measuring the battery voltage.

Is the voltage between 13 and 15.2 volts?

Yes

GO to K4

No	DIAGNOSE the charging system. Refer to the appropriate information in BATTERY, MOUNTING AND CABLES . CLEAR all Continuous Memory Diagnostic Codes (CMDTCs).

K4 CHECK THE SCMJ (POWER FOLD SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCMJ connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins as necessary
- pushed-out pins - install new pins as necessary

Reconnect the SCMJ connectors. Make sure they seat and latch correctly.

Reconnect all previously disconnected connectors.

Ignition ON.

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 SCMJ. REFER to: Power Fold Seat Module (PFSM) . TEST the system for normal operation. If the concern is still present, INSTALL a new seat assembly.

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.