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Fault code index

Car Fault Codes Explained

Plugged in a reader and got a code? Find it below. Every code we have written about is listed here, grouped by make.

Search by code or model

692 codes across 117 pages

Mercedes 75

Mercedes software incompatibility fault codes U0301 to U0327
- U0301
- U0302
- U0303
- U0321
- U0326
- U0327
Mercedes lost communication fault codes U0100 to U0235
- U0100
- U0101
- U0102
- U0103
- U0104
- U0105
- U0192
- U0197
- +3 more
Mercedes EGT sensor fault codes P2031, P2032, P2033, P2080, P2081
- P2031
- P2032
- P2033
- P2080
- P2081
U0073 · Network bus
- U0073
U0038 · Network bus
- U0038
U0028–U0072 · Network bus
- U0028
- U0029
- U0030
- U0031
- U0032
- U0033
- U0034
- U0035
- +36 more
U0019–U0027 · Network bus
- U0019
- U0020
- U0021
- U0022
- U0023
- U0024
- U0025
- U0026
- +1 more
U0010–U0018 · Network bus
- U0010
- U0011
- U0012
- U0013
- U0014
- U0015
- U0016
- U0017
- +1 more
U0002–U0009 · Network bus
- U0002
- U0003
- U0004
- U0005
- U0006
- U0007
- U0008
- U0009
P2208 · Fuel, air and emissions
- P2208
P2100, P2101 · Fuel, air and emissions
- P2100
- P2101
P1000–P1570 · Manufacturer-specific
- P1000
- P1228
- P1386
- P1570
P2003, P2004 · Fuel, air and emissions
- P2003
- P2004
P2000, P2001 · Fuel, air and emissions
- P2000
- P2001
P1750–P1912 · Manufacturer-specific
- P1750
- P1832
- P1910
- P1912
P1747 · Manufacturer-specific
- P1747
P0840–P0849 · Transmission
- P0840
- P0841
- P0842
- P0843
- P0844
- P0845
- P0846
- P0847
- +2 more
P0836–P0839 · Transmission
- P0836
- P0837
- P0838
- P0839
P0830–P0835 · Transmission
- P0830
- P0831
- P0832
- P0833
- P0834
- P0835
P0820–P0824 · Transmission
- P0820
- P0821
- P0822
- P0823
- P0824
P0812–P0818 · Transmission
- P0812
- P0813
- P0814
- P0815
- P0816
- P0817
- P0818
P0805–P0811 · Transmission
- P0805
- P0806
- P0807
- P0808
- P0809
- P0810
- P0811
P0801–P0804 · Transmission
- P0801
- P0803
- P0804
P0790 · Transmission
- P0790
P0785–P0789 · Transmission
- P0785
- P0786
- P0787
- P0788
- P0789
P0781–P0784 · Transmission
- P0781
- P0782
- P0783
- P0784
P0762–P0780 · Transmission
- P0762
- P0763
- P0764
- P0765
- P0766
- P0767
- P0768
- P0769
- +6 more
P0750–P0761 · Transmission
- P0750
- P0751
- P0752
- P0753
- P0754
- P0755
- P0756
- P0757
- +4 more
P0745–P0749 · Transmission
- P0745
- P0746
- P0747
- P0748
- P0749
P0740–P0744 · Transmission
- P0740
- P0741
- P0742
- P0743
- P0744
P0736 · Transmission
- P0736
P0730–P0735 · Transmission
- P0730
- P0731
- P0732
- P0733
- P0734
- P0735
P0724 · Transmission
- P0724
P0719–P0723 · Transmission
- P0719
- P0720
- P0721
- P0722
- P0723
P0715–P0718 · Transmission
- P0715
- P0716
- P0717
- P0718
P0705–P0714 · Transmission
- P0705
- P0706
- P0707
- P0708
- P0709
- P0710
- P0711
- P0712
- +2 more
P0700–P0704 · Transmission
- P0700
- P0701
- P0702
- P0703
- P0704
P0654–P0656 · Engine computer and outputs
- P0654
- P0655
- P0656
P0650 · Engine computer and outputs
- P0650
P0620–P0622 · Engine computer and outputs
- P0620
- P0621
- P0622
P0606–P0609 · Engine computer and outputs
- P0606
- P0608
- P0609
P0602–P0605 · Engine computer and outputs
- P0602
- P0603
- P0604
- P0605
P0600, P0601 · Engine computer and outputs
- P0600
- P0601
P0565–P0580 · Speed and idle control
- P0565
- P0566
- P0567
- P0568
- P0569
- P0570
- P0571
- P0572
- +7 more
P0560–P0563 · Speed and idle control
- P0560
- P0561
- P0562
- P0563
P0550–P0554 · Speed and idle control
- P0550
- P0551
- P0552
- P0553
- P0554
P0534 · Speed and idle control
- P0534
P0530–P0533 · Speed and idle control
- P0530
- P0531
- P0532
- P0533
P0520–P0523 · Speed and idle control
- P0520
- P0521
- P0522
- P0523
P0510 · Speed and idle control
- P0510
P0505–P0507 · Speed and idle control
- P0505
- P0506
- P0507
P0500–P0503 · Speed and idle control
- P0500
- P0501
- P0502
- P0503
P0484, P0485 · Emission controls
- P0484
- P0485
P0480–P0483 · Emission controls
- P0480
- P0481
- P0482
- P0483
P0470–P0479 · Emission controls
- P0470
- P0471
- P0472
- P0473
- P0474
- P0475
- P0476
- P0477
- +2 more
P0467–P0469 · Emission controls
- P0467
- P0468
- P0469
P0466 · Emission controls
- P0466
P0400 · Emission controls
- P0400
P0725–P0728 · Transmission
- P0725
- P0726
- P0727
- P0728
C1501–C1600 · Chassis
- C1501
- C1504
- C1512
- C1600
C1140–C1401 · Chassis
- C1140
- C1142
- C1144
- C1200
- C1300
- C1303
- C1311
- C1312
- +1 more
C1121–C1135 · Chassis
- C1121
- C1122
- C1123
- C1132
- C1133
- C1135
C1100–C1103 · Chassis
- C1100
- C1101
- C1102
- C1103
C1024, C1025 · Chassis
- C1024
- C1025
C1020, C1021 · Chassis
- C1020
- C1021
C1010–C1012 · Chassis
- C1010
- C1011
- C1012
B1703–B1850 · Body
- B1703
- B1729
- B1736
- B1768
- B1773
- B1850
B1617–B1628 · Body
- B1617
- B1618
- B1628
B1481–B1492 · Body
- B1481
- B1489
- B1492
B1432–B1476 · Body
- B1432
- B1459
- B1462
- B1476
B1416–B1425 · Body
- B1416
- B1417
- B1418
- B1419
- B1420
- B1421
- B1422
- B1423
- +2 more
B1241–B1315 · Body
- B1241
- B1246
- B1310
- B1315
B1128–B1235 · Body
- B1128
- B1226
- B1227
- B1229
- B1230
- B1231
- B1232
- B1233
- +2 more
B1000, B1004, B1056, B1201, B1213, B1214 Mercedes vehicle fault codes
- B1000
- B1004
- B1056
- B1201
- B1213
- B1214
Mercedes fault codes

Audi 22

Audi Fault Codes
U0073, U0100, U0107, U0121 Audi Fault Codes
- U0073
- U0100
- U0107
- U0121
P3401, B0081, C0040, U0001 Audi Fault Codes
- B0081
- C0040
- P3401
- U0001
P2A04, P2BA8, P3000, P3100, P3400 Audi Fault Codes
- P2A04
- P2BA8
- P3000
- P3100
- P3400
P2810, P2815, P2A00, P2A01, P2A03 Audi Fault Codes
- P2810
- P2815
- P2A00
- P2A01
- P2A03
P2723, P2803, P2806, P2809 Audi Fault Codes
- P2723
- P2803
- P2806
- P2809
P2706, P2711, P2714, P2716 Audi vehicle fault codes
- P2706
- P2711
- P2714
- P2716
P2601, P2607, P2609, P2610, P2614 Audi Fault Codes
- P2601
- P2607
- P2609
- P2610
- P2614
P2432, P2500, P2501, P2503, P2509, P250C Audi Fault Codes
- P2432
- P2500
- P2501
- P2503
- P2509
- P250C
P2308, P2310, P2401, P2402, P2422, P2431 Audi Fault Codes
- P2308
- P2310
- P2401
- P2402
- P2422
- P2431
P2237, P2238, P2251, P2302, P2303, P2305 Audi Fault Codes
- P2237
- P2238
- P2251
- P2302
- P2303
- P2305
PP2002, P2004, P2006, P2101, P2122, P2135, P2138, P2181, P2210, P2213 Audi Fault Codes
- P2004
- P2006
- P2101
- P2122
- P2135
- P2138
- P2181
- P2210
- +1 more
P0B26, P0B28, P0B30, P0C00, P0C09, P0C11, P0C14, P0C15, P2000 Audi Fault Codes
- P0B26
- P0B28
- P0B30
- P0C00
- P0C09
- P0C11
- P0C14
- P0C15
- +1 more
P0942, P0944, P0961, P0A08, P0A0D, P0A0F, P0A7F, P0A80, P0B22, P0B24 Audi vehicle fault codes
- P0942
- P0944
- P0961
- P0A08
- P0A0D
- P0A0F
- P0A7F
- P0A80
- +2 more
P0730, P0841, P0842, P0845, P0846, P0847, P0901, P0935 Audi vehicle fault codes
- P0730
- P0841
- P0842
- P0845
- P0846
- P0847
- P0901
- P0935
P0602, P0603, P0605, P0700, P0705, P0706, P0720 Audi vehicle fault codes
- P0602
- P0603
- P0605
- P0700
- P0705
- P0706
- P0720
P0500, P0501, P0505, P0506, P0507, P0600, P0601 Audi Fault Codes
- P0500
- P0501
- P0505
- P0506
- P0507
- P0600
- P0601
P0430, P0440, P0441, P0442, P0455 Audi Fault Codes
- P0430
- P0440
- P0441
- P0442
- P0455
P0303, P0304, P0401, P0420 Audi vehicle fault codes
- P0303
- P0304
- P0401
- P0420
P0201, P0202, P0203, P0205, P0300, P0301, P0302 Audi Fault Codes
- P0201
- P0202
- P0203
- P0205
- P0300
- P0301
- P0302
P0113, P0128, P0135, P0171, P0174, P0200 Audi Fault Codes
- P0113
- P0128
- P0135
- P0171
- P0174
- P0200
P0010, P0011, P0012, P0013, P0014, P0101, P0102 Audi vehicle fault codes
- P0010
- P0011
- P0012
- P0013
- P0014
- P0101
- P0102

BMW 14

BMW Fault Codes
P0003, P0004, P0005, P0006, P0007, P0008, P0009 BMW Fault Codes
- P0003
- P0004
- P0005
- P0006
- P0007
- P0008
- P0009
P0033, P0034, P0035, P0036, P0037, P0038, P0039 BMW Fault Codes
- P0033
- P0034
- P0035
- P0036
- P0037
- P0038
- P0039
P0010, P0011, P0012, P0013, P0014, P0015 BMW Fault Codes
- P0010
- P0011
- P0012
- P0013
- P0014
- P0015
P2556, P2557, P2558, P2559, P2560 BMW Fault Codes
- P2556
- P2557
- P2558
- P2559
- P2560
P2182, P2183, P2184, P2185, P2186 BMW Fault Codes
- P2182
- P2183
- P2184
- P2185
- P2186
P1111, P1112, P1115, P1116, P1117, P1118 BMW Fault Code
- P1111
- P1112
- P1115
- P1116
- P1117
- P1118
P0A14, P0A15, P0A16, P0A17, P0A18, P0A19, P0A20 BMW Fault Codes
- P0A14
- P0A15
- P0A16
- P0A17
- P0A18
- P0A19
- P0A20
P0737, P0738, P0739, P0740, P0741, P0742 BMW Fault Codes
- P0737
- P0738
- P0739
- P0740
- P0741
- P0742
P0725, P0726, P0727, P0728 BMW Fault Codes
- P0725
- P0726
- P0727
- P0728
P0654, P0655, P0656, P0657, P0658, P0659 BMW Fault Codes
- P0654
- P0655
- P0656
- P0657
- P0658
- P0659
P0520, P0521, P0522, P0523, P0524 BMW Fault Code
- P0520
- P0521
- P0522
- P0523
- P0524
B0030, B0035, B0036, B0037, B0038, B0040 BMW Fault Codes
- B0030
- B0035
- B0036
- B0037
- B0038
- B0040
B0004, B0005, B0016, B0017, B0018, B0022, B0024, B0026, B0028, B0029 BMW Fault Codes
- B0004
- B0005
- B0016
- B0017
- B0018
- B0022
- B0024
- B0026
- +2 more

Skoda 5

Skoda engine and vehicle fault codes
Skoda Engine Fault codes page 4
- P0337
- P0340
- P0341
- P0342
- P0343
- P0351
- P0353
- P0354
- +41 more
Skoda Engine Fault codes page 3
- P0222
- P0223
- P0225
- P0226
- P0227
- P0228
- P0230
- P0234
- +45 more
Skoda Engine Fault codes page 2
- P0137
- P0138
- P0139
- P0140
- P0141
- P0150
- P0151
- P0152
- +31 more
Skoda Engine Fault codes page 1
- P0010
- P0020
- P0065
- P0066
- P0067
- P0101
- P0102
- P0103
- +22 more

Other 1