Diagnostic Trouble Code Priority Index

B1231 - B2445, C1414, U2017 - U2018:

B1869 - B1999:

a DTC: Diagnostic Trouble Code, retrieved using New Generation Star (NGS) Tester or equivalent.
b LFC: Lamp Fault Code, flashed on airbag indicator.
C Tone will sound only if additional DTCs are present.