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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (On-Board Diagnostics [Dynamic Stability Control]) >> DTC U3003-08: U3003-16: U3003-17: Power Supply System >> Notes

DTC U3003-08: U3003-16: U3003-17: Power Supply System: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
DTC U3003:08, U3003:16, U3003:17 Power supply system
DETECTION CONDITION 
  • U3003:08
    • While the vehicle is traveling at a speed of 10km/h {6.2 mph} or more  , a CAN signal error caused by low power supply voltage is detected.
  • U3003:16
    • Low ignition voltage (7.9-9.6 V  ) is detected at the voltage monitor of the solenoid valve or motor monitor. (Except engine cranking condition)
    • Low ignition voltage (6.0-7.9 V  ) is detected at the voltage monitor of the solenoid valve or motor monitor.
    • Low ignition voltage (below 6.0 V  ) is detected at the voltage monitor of the solenoid valve or motor monitor.
  • U3003:17
    • High ignition voltage (17 V or more  ) is detected at the voltage monitor of the solenoid valve or motor monitor.
FAIL-SAFE FUNCTION  Refer to "DTC TABLE " and "Fail-safe Function Malfunction Contents". (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)
POSSIBLE CAUSE 
  • Battery deterioration
  • Generator malfunction
  • Fuse (SRS1 7.5A, ABS/DSC S 30A, ABS/DSC M 50A) malfunction
  • Open or short circuit in wiring harness between DSC HU/Control Module terminal A and battery
  • Open or short circuit in wiring harness between DSC HU/Control Module terminal B and battery
  • Open or short circuit in wiring harness between DSC HU/Control Module terminal Q and battery
  • Open circuit in wiring harness between DSC HU/Control Module terminal AL and body ground
  • Poor connection at connectors (female terminal)
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