1998 Buick Century CustomFACTORY OEM SERVICE PROCEDURE

Instrument Panel DTCS

INSTRUMENT PANEL DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
B0570 SEASON ODOMETER MALFUNCTION
B0600 OPTION CONTENT FAILURE
B0602 OSCILLATOR MALFUNCTION
B0608 POWER MODING MALFUNCTION (IGN/CRANK SIGNAL)
U1016 LOSS OF PCM COMMUNICATION
U1040 LOSS OF EBCM/EBTCM COMMUNICATION
U1064 LOSS OF BCM COMMUNICATION
U1096 CLASS 2 TXD FAILURE (FAILED TO TRANSMIT 3 TIMES)
U1300 CLASS 2 CIRCUIT (SHORT TO GROUND)
U1301 CLASS 2 CIRCUIT (SHORT TO VOLTAGE)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.