DTC U3003-16/U3003-17/U3003-1C: Power Supply System [Dynamic Stability Control (DSC)]: Notes

DTC U3003:16/U3003:17/U3003:1C [DYNAMIC STABILITY CONTROL (DSC)] DETECTION CONDITION AND POSSIBLE CAUSE

DTC	U3003:16, U3003:17, U3003:1C	Power supply system
DETECTION CONDITION		U3003:16 The vehicle speed exceeds 3 km/h {2 mph} and the voltage at DSC HU/CM terminal AH is less than 10 V. U3003:17 The voltage at DSC HU/CM terminal AH is 16 V or more. U3003:1C Low ignition voltage (10 V or less) is detected at the voltage monitor of the solenoid valve or motor monitor. The ABS wheel speed sensor power supply for all four wheels decreases for a continuous 60 s with the voltage at DSC HU/CM terminal AH is 10 V or less.
FAIL-SAFE FUNCTION		Refer to "Fail-safe Function Malfunction Contents". (See DTC TABLE [DYNAMIC STABILITY CONTROL (DSC)] .)
POSSIBLE CAUSE		Poor connection at connectors (female terminal) Battery deterioration Generator malfunction Malfunction of fuse (MAIN 200A, ABS/DSC M 50A, ABS/DSC S 30A or SRS1 7.5 A) Open or short circuit in wiring harness between DSC HU/CM terminal AH and battery positive terminal Open or short circuit in wiring harness between DSC HU/CM terminal AK and battery positive terminal Open or short circuit in wiring harness between DSC HU/CM terminal AL and battery positive terminal Open circuit in wiring harness between DSC HU/CM terminal B and body ground DSC HU/CM malfunction
Courtesy of MAZDA MOTORS CORP.