2001 Pontiac Firebird Formula, StandardFACTORY OEM SERVICE PROCEDURE

Charging DTCS

CHARGING DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
P0560 Voltage Out Of Range
P0562 Voltage Excessively Low
P0563 Voltage Excessively High
P0615 Starter Relay Output Driver Module Circuit Malfunction
P0620 Fault Detection Circuit Malfunction
P1637 Output Driver Module Malfunction
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.