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DTC U3003-92

DTC U3003-92  : System Voltage Low (Long Term)

NOTE:
  • Initial Diagnosis:

    The initial on-board diagnosis occurs right after the vehicle condition is turned to the ON mode, and the brake system indicator (red or amber) comes on, and continues until the indicator goes off.

  • Regular Diagnosis:

    The regular on-board diagnosis begins right after the brake system indicator (red or amber) goes off, and it continues until the vehicle condition is turned to the OFF (LOCK) mode.

  • Review "How to Troubleshoot the Electric Servo Brake System" before doing the DTC troubleshooting procedure.
  • Test-drive the vehicle according to local traffic conditions and regulations. Do not test-drive on a lift unless specified.
  • The possible causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 9.5 - 16.7 V

Operating Condition:

  • Turn the vehicle to the READY TO DRIVE mode.
  • Wait for 60 seconds or more.
Execution Regular Diagnosis
Duration About 60 seconds
DTC Type
  • 1 drive cycle
  • Brake system indicator (red) on
  • Brake system indicator (amber) on
Fail Safe Action
  • None
Possible Cause
  • Electric powertrain system failure
  • Electric servo brake control unit internal failure