Pinpoint Test Cy: U3003:17
- DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition ICM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in the ICM in continuous memory if the ICM detects battery voltage above 16 volts on the voltage supply circuit for 5 seconds or longer. Possible Sources
- Charging system concern
- ICM
NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events. - CY1 CHECK FOR OVERCHARGING DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES
- Ignition ON.
- Using a diagnostic scan tool, perform self-test on all modules.
- Retrieve the continuous memory DTCs from all modules.
Are any overcharging Diagnostic Trouble Codes (DTCs) set in more than one module?
Yes DIAGNOSE the overcharging condition. REFER to CHARGING SYSTEM - 2.3L ECOBOOST (231KW/314PS)/2.3L ECOBOOST (257KW/350PS) - MI4 , CHARGING SYSTEM - 5.0L 32V TI-VCT or CHARGING SYSTEM - 5.2L 32V TI-VCT - SUPERCHARGED . No GO to CY2 - CY2 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?
Yes DIAGNOSE the overcharging condition. REFER to CHARGING SYSTEM - 2.3L ECOBOOST (231KW/314PS)/2.3L ECOBOOST (257KW/350PS) - MI4 , CHARGING SYSTEM - 5.0L 32V TI-VCT or CHARGING SYSTEM - 5.2L 32V TI-VCT - SUPERCHARGED . No GO to CY3 - CY3 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U3003:17
- Ignition OFF.
- Ignition ON.
- Using a diagnostic scan tool, clear the continuous memory DTCs.
- Carry out the ICM self-test.
Is DTC U3003:17 present?
Yes INSTALL a new ICM. REFER to: Information Center Module (ICM) . No The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.