Buick Regal 2018-2026 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:
Symptoms - Cruise Control
NOTE: The following steps must be completed before using the symptom
tables.
1. Before using the symptom diagnostic table, perform the Diagnostic System
Check - Vehicle in
order to verify the following conditions:
There are no DTCs set.
The module can communicate via the serial data.
2. Review
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed to
correct a condition. Multiple
messages may appear one after
another.
The messages that do not require
immediate action can be
acknowledged and cleared by
pressing . The messages that
require immedi
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