C0021
Brake Booster Performance
Turbocharger and Boost DTC Codes
Turbocharger, wastegate, boost pressure, and supercharger OBD-II diagnostic trouble codes — with tuning context.
About Turbo / Boost codes
Turbo and boost codes usually indicate genuine mechanical problems: stuck wastegate, failed N75 valve, intercooler leaks, oil starvation. Suppressing them risks catastrophic turbo failure. Diagnose mechanically first.
All 316 codes in Turbo / Boost
C0022
Brake Booster Solenoid
C0047
Brake Booster Pressure Sensor
C0048
Brake Booster Travel Sensor
C004C
Brake Booster Motor A Position Sensor Exceeded Learning Limit
C0566
Brake Booster Solenoid Circuit/Open
C0567
Brake Booster Solenoid Circuit Low
C0568
Brake Booster Solenoid Circuit High
C0569
Brake Booster Solenoid Circuit Performance
C056A
Brake Booster Pressure Sensor Power Supply Circuit
C056F
Brake Booster Travel Sensor Circuit Low
C0570
Brake Booster Travel Sensor Circuit High
C0579
Brake Booster Temperature Sensor B Circuit Low
C057A
Brake Booster Temperature Sensor B Circuit High
C057B
Brake Booster Temperature Sensor B Circuit/Open
C057C
Brake Booster Temperature Sensor B CircuitRange/Performance
C057D
Brake Booster Temperature Sensor Circuit B Intermittent/Erratic
C057E
Brake Booster Temperature Sensor A/B Correlation
C057F
Brake Booster Motor A Phase U-V-W Circuit/Open
C0580
Brake Booster Motor A Phase U-V-W Circuit Low
C0581
Brake Booster Motor A Phase U-V-W Circuit High
C0582
Brake Booster Motor A Phase U-V-W Circuit Range/Performance
C0583
Brake Booster Motor B Phase U-V-W Circuit/Open
C0584
Brake Booster Motor B Phase U-V-W Circuit Low
C0585
Brake Booster Motor B Phase U-V-W Circuit High
C0586
Brake Booster Motor B Phase U-V-W Circuit Range/Performance
C0587
Brake Booster Motor A Position Sensor Circuit/Open
C0588
Brake Booster Motor A Position Sensor Circuit Low
C0589
Brake Booster Motor A Position Sensor Circuit High
C058A
Brake Booster Motor A Position Sensor Circuit Range/Performance
C058B
Brake Booster Motor B Position Sensor Circuit/Open
C058C
Brake Booster Motor B Position Sensor Circuit Low
C058D
Brake Booster Motor B Position Sensor Circuit High
C058E
Brake Booster Motor B Position Sensor Circuit Range/Performance
C0590
Brake Booster Motor A Phase U-V-W Current High
C0591
Brake Booster Motor A Phase U-V-W Current Low
C0592
Brake Booster Motor B Phase U-V-W Current High
C0593
Brake Booster Motor B Phase U-V-W Current Low
C0594
Brake Booster Motor A Performance
C0595
Brake Booster Internal Power Driver Range/Performance
C0596
Brake Booster Motor A Current Sensor Circuit Range/Performance
C0599
Brake Booster Control Module Missing Calibration
C05AF
Brake Booster Motor B Current Sensor Circuit Range/Performance
C05B3
Brake Booster Temperature Sensor C Circuit Low
C05B4
Brake Booster Temperature Sensor C Circuit High
C05B5
Brake Booster Temperature Sensor C Circuit/Open
C05B6
Brake Booster Temperature Sensor C Circuit Range/Performance
C05B7
Brake Booster Temperature Sensor C Circuit Intermittent/Erratic
C05B8
Brake Booster Motor A Position Sensor Supply Circuit/Open
C05B9
Brake Booster Motor A Position Sensor Supply Circuit Low
C05BA
Brake Booster Motor A Position Sensor Supply Circuit High
C05BB
Brake Booster Motor A Position Sensor Supply Circuit Range/Performance
C05BC
Brake Booster Motor B Position Sensor Supply Circuit/Open
C05BD
Brake Booster Motor B Position Sensor Supply Circuit Low
C05BE
Brake Booster Motor B Position Sensor Supply Circuit High
C05BF
Brake Booster Motor B Position Sensor Supply Circuit Range/Performance
C05C2
Brake Booster Motor A Over Temperature
C05C3
Brake Booster Motor A Supply Circuit
C062C
Brake Booster Motor “B” Performance
P0033
Turbo Charger Bypass Valve Control Circuit
P0034
Turbo Charger Bypass Valve Control Circuit Low
P0035
Turbo Charger Bypass Valve Control Circuit High
P0039
Turbo/Super Charger Bypass Valve Control Circuit Range/Performance
P003A
Turbocharger/Supercharger Boost Control A Position Exceeded Learning Limit
P003B
Turbocharger/Supercharger Boost Control B Position Exceeded Learning Limit
P0045
Turbocharger/Supercharger Boost Control A Circuit/Open
P0046
Turbocharger/Supercharger Boost Control A Circuit Range/Performance
P0047
Turbocharger/Supercharger Boost Control A Circuit Low
P0048
Turbocharger/Supercharger Boost Control A Circuit High
P0049
Turbocharger/Supercharger A Turbine Overspeed
P004A
Turbocharger/Supercharger Boost Control B Circuit/Open
P004B
Turbocharger/Supercharger Boost Control B Circuit Range/Performance
P004C
Turbocharger/Supercharger Boost Control B Circuit Low
P004D
Turbocharger/Supercharger Boost Control B Circuit High
P004E
Turbocharger/Supercharger Boost Control A Circuit Intermittent/Erratic
P004F
Turbocharger/Supercharger Boost Control B Circuit Intermittent/Erratic
P005E
Turbocharger/Supercharger Boost Control B Supply Voltage Circuit Low
P005F
Turbocharger/Supercharger Boost Control B Supply Voltage Circuit High
P006C
MAP - Turbocharger/Supercharger Inlet Pressure Correlation
P006D
Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 1
P006E
Turbocharger/Supercharger Boost Control A Supply Voltage Circuit Low
P006F
Turbocharger/Supercharger Boost Control A Supply Voltage Circuit High
P00AF
Turbocharger/Supercharger Boost Control A Module Performance
P00B0
Turbocharger/Supercharger Boost Control B Module Performance
P00C0
Turbocharger/Supercharger Bypass Valve B Control Circuit
P00C1
Turbocharger/Supercharger Bypass Valve B Control Circuit Low
P00C2
Turbocharger/Supercharger Bypass Valve B Control Circuit High
P00C3
Turbocharger/Supercharger Bypass Valve B Control Circuit Range/Performance
P00C4
Turbocharger/Supercharger Bypass Valve B - Mechanical
P00C5
Turbocharger/Supercharger B Turbine Overspeed
P00CF
Barometric Pressure - Turbocharger/Supercharger Boost Sensor A Correlation
P00D0
Barometric Pressure - Turbocharger/Supercharger Boost Sensor B Correlation
P00D7
Turbocharger/Supercharger Bypass Valve A Temperature Too High
P00D8
Turbocharger/Supercharger Bypass Valve B Temperature Too High
P00F7
Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 2
P00F8
Turbocharger Outlet Pressure Sensor A Circuit
P00F9
Turbocharger Outlet Pressure Sensor A Range/Performance
P00FA
Turbocharger Outlet Pressure Sensor A Circuit Low
P00FB
Turbocharger Outlet Pressure Sensor A Circuit High
P00FC
Turbocharger Outlet Pressure Sensor A Intermittent/Erratic
P012A
Turbocharger/Supercharger Inlet Pressure Sensor A Circuit
P012B
Turbocharger/Supercharger Inlet Pressure Sensor A Circuit Range/Performance
P012C
Turbocharger/Supercharger Inlet Pressure Sensor A Circuit Low
P012D
Turbocharger/Supercharger Inlet Pressure Sensor A Circuit High
P012E
Turbocharger/Supercharger Inlet Pressure Sensor A Circuit Intermittent/Erratic
P01FA
Turbocharger Outlet Pressure Sensor B Circuit
P01FB
Turbocharger Outlet Pressure Sensor B Range/Performance
P01FC
Turbocharger Outlet Pressure Sensor B Circuit Low
P01FD
Turbocharger Outlet Pressure Sensor B Circuit High
P01FE
Turbocharger Outlet Pressure Sensor B Intermittent/Erratic
P01FF
Turbocharger Outlet Pressure Sensor A/B Correlation
P0234
Engine Turbocharger/Supercharger Overboost Condition
P0235
Turbocharger Boost Sensor A Circuit Malfunction
P0236
Turbocharger Boost Sensor A Circuit Range/Performance
P0237
Turbocharger Boost Sensor A Circuit Low
P0238
Turbocharger Boost Sensor A Circuit High
P0239
Turbocharger Boost Sensor B Malfunction
P023D
Manifold Absolute Pressure - Turbocharger/Supercharger Boost Sensor A Correlation
P023E
Manifold Absolute Pressure - Turbocharger/Supercharger Boost Sensor B Correlation
P0240
Turbocharger Boost Sensor B Circuit Range/Performance
P0241
Turbocharger Boost Sensor B Circuit Low
P0242
Turbocharger Boost Sensor B Circuit High
P0243
Turbocharger Wastegate Solenoid A Malfunction
P0244
Turbocharger Wastegate Solenoid A Range/Performance
P0245
Turbocharger Wastegate Solenoid A Low
P0246
Turbocharger Wastegate Solenoid A High
P0247
Turbocharger Wastegate Solenoid B Malfunction
P0248
Turbocharger Wastegate Solenoid B Range/Performance
P0249
Turbocharger Wastegate Solenoid B Low
P0250
Turbocharger Wastegate Solenoid B High
P025E
Turbocharger/Supercharger Boost Sensor A Intermittent/Erratic
P025F
Turbocharger/Supercharger Boost Sensor B Intermittent/Erratic
P0299
Turbocharger/Supercharger "A" Underboost Condition
P02CA
Turbocharger/Supercharger B Overboost Condition
P02CB
Turbocharger/Supercharger B Underboost Condition
P0555
Brake Booster Pressure Sensor Circuit
P0556
Brake Booster Pressure Sensor Circuit Range/Performance
P0557
Brake Booster Pressure Sensor Circuit Low
P0558
Brake Booster Pressure Sensor Circuit High
P0559
Brake Booster Pressure Sensor Circuit Intermittent
P056E
Cold Start Turbocharger/Supercharger Boost Control A Performance
P056F
Cold Start Turbocharger/Supercharger Boost Control B Performance
P05FD
Turbocharger/Supercharger Boost Control A Temperature Too High
P2262
Turbo Boost Press Not Detected-Mechanical
P2263
T/S Charger Boost Sys Perf
P226B
Turbocharger/Supercharger A Boost Pressure Too High - Mechanical
P226C
Turbocharger Boost Control A Slow Response
P226F
Turbocharger Boost Control B Slow Response
P22C5
Turbocharger Compressor Outlet Valve Control Circuit/Open
P22C6
Turbocharger Compressor Outlet Valve Control Circuit Low
P22C7
Turbocharger Compressor Outlet Valve Control Circuit High
P22C8
Turbocharger Compressor Outlet Valve Stuck Open
P22C9
Turbocharger Compressor Outlet Valve Stuck Closed
P22CA
Turbocharger Compressor Outlet Switching Valve Control Circuit/Open
P22CB
Turbocharger Compressor Outlet Switching Valve Control Circuit Low
P22CC
Turbocharger Compressor Outlet Switching Valve Control Circuit High
P22CD
Turbocharger Compressor Outlet Switching Valve Stuck Open
P22CE
Turbocharger Compressor Outlet Switching Valve Stuck Closed
P22CF
Turbocharger Turbine Inlet Valve Control Circuit/Open
P22D0
Turbocharger Turbine Inlet Valve Control Circuit Low
P22D1
Turbocharger Turbine Inlet Valve Control Circuit High
P22D2
Turbocharger Turbine Inlet Valve Stuck Open
P22D3
Turbocharger Turbine Inlet Valve Stuck Closed
P22D4
Turbocharger Turbine Inlet Valve Position Sensor Circuit
P22D5
Turbocharger Turbine Inlet Valve Position Sensor Circuit Range/Performance
P22D6
Turbocharger Turbine Inlet Valve Position Sensor Circuit Low
P22D7
Turbocharger Turbine Inlet Valve Position Sensor Circuit High
P22D8
Turbocharger Turbine Inlet Valve Position Sensor Circuit Intermittent/Erratic
P2374
Turbocharger/Supercharger Inlet Pressure Sensor B Circuit
P2375
Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Range/Performance
P2376
Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Low
P2377
Turbocharger/Supercharger Inlet Pressure Sensor B Circuit High
P2378
Turbocharger/Supercharger Inlet Pressure Sensor B Circuit Intermittent/Erratic
P23AA
Turbocharger/Supercharger Bypass Valve A Stuck
P2562
Turbocharger Boost Ctrl Pos Sensor Circ
P2563
Turbocharger Boost Ctrl Pos Sensor Circ Range/Perf
P2564
Turbocharger Boost Ctrl Pos Sensor Circ Low
P2565
Turbocharger Boost Ctrl Pos Sensor Circ High
P2566
Turbocharger Boost Ctrl Pos Sensor Circ Interm
P2578
Turbocharger/Supercharger Speed Sensor A Circuit
P2579
Turbocharger/Supercharger Speed Sensor A Circuit Range/Performance
P2580
Turbocharger/Supercharger Speed Sensor A Circuit Low
P2581
Turbocharger/Supercharger Speed Sensor A Circuit High
P2582
Turbocharger/Supercharger Speed Sensor A Circuit Intermittent
P2586
Turbocharger Boost Control Position Sensor B Circuit
P2587
Turbocharger Boost Control Position Sensor B Circuit Range/Performance
P2588
Turbocharger Boost Control Position Sensor B Circuit Low
P2589
Turbocharger Boost Control Position Sensor B Circuit High
P2590
Turbocharger Boost Control Position Sensor B Circuit Intermittent/Erratic
P2593
Turbocharger Speed Sensor B Circuit
P2594
Turbocharger Speed Sensor B Circuit Range/Performance
P2595
Turbocharger Speed Sensor B Circuit Low
P2596
Turbocharger Speed Sensor B Circuit High
P2597
Turbocharger Speed Sensor B Circuit Intermittent
P2598
Turbocharger Boost Control Position Sensor A Performance - Stuck Low
P2599
Turbocharger Boost Control Position Sensor A Performance - Stuck High
P259A
Turbocharger Boost Control Position Sensor B Performance - Stuck Low
P259B
Turbocharger Boost Control Position Sensor B Performance - Stuck High
P259C
Excessive Time To Enter Closed Loop Turbocharger A Boost Control
P259D
Excessive Time To Enter Closed Loop Turbocharger B Boost Control
P259E
Turbocharger A Boost Control Position At Low Limit
P259F
Turbocharger A Boost Control Position At High Limit
P25A0
Turbocharger B Boost Control Position At Low Limit
P25A1
Turbocharger B Boost Control Position At High Limit
P25B3
Turbocharger/Supercharger Wastegate A Stuck Open
P25B4
Turbocharger/Supercharger Wastegate A Stuck Closed
P25B5
Turbocharger/Supercharger Wastegate B Stuck Open
P25B6
Turbocharger/Supercharger Wastegate B Stuck Closed
P25C4
Brake Booster Temperature Sensor A Circuit
P25C5
Brake Booster Temperature Sensor A Circuit Range/Performance
P25C6
Brake Booster Temperature Sensor A Circuit Low
P25C7
Brake Booster Temperature Sensor A Circuit High
P25C8
Brake Booster Temperature Sensor A Circuit Intermittent/Erratic
P25E9
Supercharger Disconnect Clutch Stuck Open
P25EA
Supercharger Disconnect Clutch Stuck Closed
P25EB
Supercharger Disconnect Clutch Circuit Range/Performance
P25EC
Supercharger Disconnect Clutch Circuit Low
P25ED
Supercharger Disconnect Clutch Circuit High
P25F2
Turbocharger/Supercharger Boost Sensor C Circuit
P25F3
Turbocharger/Supercharger Boost Sensor C Circuit Range/Performance
P25F4
Turbocharger/Supercharger Boost Sensor C Circuit Low
P25F5
Turbocharger/Supercharger Boost Sensor C Circuit High
P25F8
Turbocharger/Supercharger Bypass Valve C Control Circuit
P25F9
Turbocharger/Supercharger Bypass Valve C Control Circuit Low
P25FA
Turbocharger/Supercharger Bypass Valve C Control Circuit High
P25FB
Turbocharger/Supercharger Bypass Valve C Control Circuit Range/Performance
P25FC
Turbocharger/Supercharger Bypass Valve C – Mechanical
P25FD
Turbocharger/Supercharger Bypass Valve C Temperature Too High
P25FE
Supercharger Disconnect Clutch
P2AB7
Wastegate Position Sensor A Circuit
P2AB8
Wastegate Position Sensor A Circuit Low
P2AB9
Wastegate Position Sensor A Circuit High
P2ABA
Wastegate Position Sensor B Circuit
P2ABB
Wastegate Position Sensor B Circuit Low
P2ABC
Wastegate Position Sensor B Circuit High
P2ABD
Turbocharger/Supercharger Wastegate Actuator A Driver Current/Temperature Too High
P2ABE
Turbocharger/Supercharger Wastegate Actuator B Driver Current/Temperature Too High
P2B6E
Turbocharger/Supercharger A Temperature Sensor Circuit
P2B6F
Turbocharger/Supercharger A Temperature Sensor Circuit Low
P2B70
Turbocharger/Supercharger A Temperature Sensor Circuit High
P2B71
Turbocharger/Supercharger A Temperature Sensor Circuit Circuit Range/Performance
P2B7F
Turbocharger/Supercharger Boost Control Module A Calibration Not Learned/Programmed
P2B80
Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/Programmed
P2B81
Wastegate Position Sensor A Circuit Performance
P2B82
Wastegate Position Sensor B Circuit Performance
P2B8F
Turbocharger/Supercharger B Temperature Sensor Circuit
P2B90
Turbocharger/Supercharger B Temperature Sensor Circuit Low
P2B91
Turbocharger/Supercharger B Temperature Sensor Circuit High
P2B92
Turbocharger/Supercharger B Temperature Sensor Circuit Circuit Range/Performance
P2B93
Wastegate Position Sensor A Exceeded Learning Limit
P2B94
Wastegate Position Sensor B Exceeded Learning Limit
P2BBB
Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit
P2BBC
Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit Low
P2BBD
Turbocharger/Supercharger Bypass Valve A Position Sensor Circuit High
P2BBE
Turbocharger/Supercharger Bypass Valve A Position Exceeded Learning Limit
P2BBF
Turbocharger/Supercharger Bypass Valve A Supply Voltage Low
P2BC0
Turbocharger/Supercharger Bypass Valve A Driver Current/Temperature Too High
P2C29
Turbocharger/Supercharger Bypass Valve B Stuck
P2C2A
Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit/Open
P2C2B
Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit Low
P2C2C
Turbocharger/Supercharger Bypass Valve B Position Sensor Circuit High
P2C2D
Turbocharger/Supercharger Bypass Valve B Position Exceeded Learning Limit
P2C2E
Turbocharger/Supercharger Bypass Valve B Supply Voltage Low
P2C2F
Turbocharger/Supercharger Bypass Valve B Driver Current/Temperature Too High
P2C7B
Turbocharger Turbine Inlet Valve Control Performance
P2C7C
Turbocharger Turbine Inlet Valve Supply Circuit Low
P2C7D
Turbocharger Turbine Inlet Valve Motor Driver High Current
P2C7E
Turbocharger Turbine Inlet Valve Motor Driver Overtemperature
P2C7F
Turbocharger Turbine Inlet Valve Position Sensor Exceeded Learning Limit
P2C9B
Cold Start Turbocharger/Supercharger Wastegate Actuator A Range/Performance
P2C9C
Cold Start Turbocharger/Supercharger Wastegate Actuator B Range/Performance
P2CB6
Turbocharger/Supercharger B Boost System Performance
P2CB7
Turbocharger/Supercharger Boost Pressure B Not Detected – Mechanical
P2CB8
Turbocharger/Supercharger Boost Pressure B Too High – Mechanical
P2CD5
Turbocharger/Supercharger Bypass Valve C Stuck
P2CD6
Turbocharger/Supercharger Boost Sensor D Circuit
P2CD7
Turbocharger/Supercharger Boost Sensor D Circuit Range/Performance
P2CD8
Turbocharger/Supercharger Boost Sensor D Circuit Low
P2CD9
Turbocharger/Supercharger Boost Sensor D Circuit High
P2D21
Turbocharger Interstage Pressure Sensor A Circuit
P2D22
Turbocharger Interstage Pressure Sensor A Circuit Range/Performance
P2D23
Turbocharger Interstage Pressure Sensor A Circuit Low
P2D24
Turbocharger Interstage Pressure Sensor A Circuit High
P2D25
Turbocharger Interstage Pressure Sensor A Circuit Intermittent/Erratic
P2D2F
Cold Start Turbocharger/Supercharger A Underboost
P2D30
Cold Start Turbocharger/Supercharger A Overboost
P2EA6
Turbocharger Compressor Outlet Temperature Sensor Circuit
P2EC0
Turbocharger Compressor Outlet Temperature Sensor Circuit Low
P2EC1
Turbocharger Compressor Outlet Temperature Sensor Circuit High
P2EC2
Turbocharger Compressor Outlet Temperature Sensor Circuit Range/Perfomance
U010C
Lost Communication With Turbocharger/Supercharger Control Module A
U010D
Lost Communication With Turbocharger/Supercharger Control Module B
U025E
Lost Communication With Electronic Brake Booster Control Module A
U025F
Lost Communication With Electronic Brake Booster Control Module B
U02AC
Lost Communication With Turbocharger/Supercharger Boost Control A
U02AD
Lost Communication With Turbocharger/Supercharger Boost Control B
U02AF
Lost Communication With Turbocharger Turbine Inlet Valve Position Sensor
U02B0
Lost Communication With Turbocharger/Supercharger Boost Control B Position Sensor
U034B
Software Incompatibility With Brake Booster Control
U040D
Invalid Data Received From Turbocharger/Supercharger Control Module A
U040E
Invalid Data Received From Turbocharger/Supercharger Control Module B
U055F
Invalid Data Received From Electronic Brake Booster Control Module A
U0560
Invalid Data Received From Electronic Brake Booster Control Module B
U060B
Lost Communication With Turbocharger/Supercharger Boost Sensor A
U060C
Lost Communication With Turbocharger/Supercharger Boost Sensor B
U060D
Lost Communication With Turbocharger/Supercharger Boost Sensor C
U0643
Lost Communication With Turbocharger/Supercharger A Temperature Sensor
U0644
Lost Communication With Wastegate Position Sensor A
U0656
Lost Communication With Turbocharger/Supercharger Boost Control A Position Sensor
U0657
Lost Communication With Turbocharger/Supercharger Bypass Valve A Position Sensor
U066B
Lost Communication With Turbocharger/Supercharger Bypass Valve B Position Sensor
U0674
Lost Communication With Wastegate Position Sensor B
U0675
Lost Communication With Turbocharger/Supercharger Speed Sensor A
U0689
Lost Communication With Turbocharger/Supercharger B Temperature Sensor
U068B
Lost Communication With Turbocharger/Supercharger Inlet Pressure Sensor A
U068C
Lost Communication With Turbocharger/Supercharger Inlet Pressure Sensor B