Pinpoint Test Ai: DTC U3003:17

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

AI1 CHECK FOR DTC B1317, B1676, P0563 (PCM) OR U3003:17 SET IN OTHER MODULES
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: Self-Test.
- Retrieve the continuous memory DTCs from all modules.
- Is DTC B1317, B1676, P0563 (PCM) or U3003:17 set in more than one module?
1. Yes : REFER to CHARGING SYSTEM -- FUSION, MILAN & MKZ article to diagnose an overcharging condition.
2. No : GO to AI2.
AI2 CHECK THE BATTERY VOLTAGE
- Turn off all interior/exterior lights and accessories.
- Start and run the engine at approximately 2,000 rpm for 3 minutes while monitoring the battery voltage.
- Does the battery voltage rise to 15.5 volts or higher?
1. Yes : REFER to CHARGING SYSTEM -- FUSION, MILAN & MKZ article to diagnose an overcharging condition.
2. No : GO to AI3.
AI3 RECHECK FOR DTC U3003:17
- Turn the engine off.
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: HCM Self-Test.
- Clear the DTCs and repeat the HCM on-demand self-test.
- Is DTC U3003:17 present?
1. Yes : INSTALL a new HCM. REFER to HEADLAMP CONTROL MODULE (HCM) in this service information. TEST the system for normal operation.
2. 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.