Buick Regal 2018-2025 Service Manual / Engine / Engine Controls and Fuel - 2.0L (LTG) / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC P0010, P0013, or P2088-P2091
- DTC P0011 or P0014
- DTC P0016 or P0017
- DTC P0030-P0032, P0036-P0038, P0054, P0135, P0141, P103B, or P103C
- DTC P0033-P0035
- DTC P0068 or P1101
- DTC P0089, P00C6, P053F, P228C, or P228D
- DTC P0090-P0092, P00C8, P00C9, or P00CA
- DTC P0096 or P0111
- DTC P0097, P0098, or P0099
- DTC P00C7 (LTG)
- DTC P00E9
- DTC P00EA-P00EC
- DTC P00F4-P00F6
- DTC P0101
- DTC P0102 or P0103
- DTC P0106
- DTC P0107 or P0108
- DTC P0112, P0113, or P0114
- DTC P0117, P0118, or P0119
- DTC P0121-P0123, P0222, P0223, P16A0-P16A2, or P2135
- DTC P0128
- DTC P0131, P0132, P015A, P015B, P223C, or P223E
- DTC P0137, P0138, P013A, P013B, P013E, P013F, P2270, or P2271
- DTC P0171 or P0172
- DTC P018B-P018D
- DTC P0191 or P0192
- DTC P0201-P0204, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P1248, P1249, P124A, P124B, P2147, P2148, P2150, P2151, P2153, P2154, P2156, or P2157
- DTC P0231, P0232, or P023F
- DTC P0234 or P0299
- DTC P0236
- DTC P0237 or P0238
- DTC P0243, P0245, or P0246
- DTC P0300-P0304
- DTC P0324, P0326, P0331, P06B6, or P06B7
- DTC P0325, P0327, P0328, P0330, P0332, or P0333
- DTC P0335 or P0336
- DTC P0340, P0341, P0365, or P0366
- DTC P0351-P0354, P2300, P2301, P2303, P2304, P2306, P2307, P2309, or P2310
- DTC P0420
- DTC P0443, P0458, or P0459
- DTC P0446
- DTC P0449, P0498, or P0499
- DTC P0455
- DTC P0496
- DTC P0506 or P0507
- DTC P050D
- DTC P057B-P057E
- DTC P05CC or P05CE
- DTC P0601-P0604, P0606, P062B, P062F, P0630, P064D, P16F3, or P262B
- DTC P0627-P0629
- DTC P0641, P0651, P0697, P06A3, or P06D2
- DTC P0650, P263A, or P263B
- DTC P0685-P0687, P0689, P0690, or P1682
- DTC P0700
- DTC C1201, P1000, P1001, P1003, P1008, P1009, P100A, P100E, P103D, P103E, P10B6-P10B9, P10BF, P10C6-P10C8, P10F5, P1100, P1103, P117A, P11FF, P1200, P128C-P128F, P129E, P12A8, P130F, P135C-P135F, P1
- DTC P1007 or P129D
- DTC P111E
- DTC P1176 or P1177
- DTC P127C, P128A, P128B, P16E4, or P16E5
- DTC P12A6
- DTC P1400
- DTC P1516, P2101, P2119, or P2176
- DTC P157A
- DTC P163A
- DTC P16A7, P16AF, or P16B3
- DTC P16D7-P16D9
- DTC P2096 or P2097
- DTC P2122, P2123, P2127, P2128, or P2138
- DTC P2199
- DTC P219A
- DTC P2227-P2230
- DTC P2261
- DTC P2635 or P2BB3
- Symptoms - Engine Controls
- Malfunction Indicator Lamp (MIL) Diagnosis
- Engine Cranks But Does Not Run
- Fuel System Diagnosis
- Fuel Leak Diagnosis
- Fuel Injector Diagnosis
- Fuel Injector Circuit Diagnosis
- Alcohol/Contaminants-In-Fuel Diagnosis
- Evaporative Emission System Diagnosis
- Electronic Ignition System Diagnosis
- Inspection/Maintenance System Check
- Inspection/Maintenance Complete System Set Procedure
READ NEXT:
DTC P0010, P0013, or P2088-P2091
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
System Check - Vehicle
Review the description of Strategy Based Diagnosis: Strate
DTC P0011 or P0014
Diagnostic Instructions
Perform the Diagnostic System Check Instructions prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
D
DTC P0016 or P0017
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
SEE MORE:
Warning Lights, Gauges, and
Indicators
Warning: lights and gauges can
signal that something is wrong
before it becomes serious enough
to cause an expensive repair or
replacement. Paying attention to the
warning lights and gauges could
prevent injury.
Some warning lights come on briefly
when the engine is started to
indicate they are wor
DTC P0340, P0341, P0365, or P0366
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
System Check - Vehicle
Review the description of Strategy Based Diagnosis: Strategy Based
Diagnosis
An overview of each diagnostic category can be found here: Diagnostic
Proced
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