Subaru DTC Descriptions

C0BB1

Ethanol Sensor Voltage Low Input

C0BB2

Ethanol Sensor Voltage High Input

C0BB3

Fuel Pressure Sensor Voltage Low Input

C0BB4

Fuel Pressure Sensor Voltage High Input 

C0BB5

Max. Safe Ethanol Concentration Exceeded

C0BB6

COBB NexGen Flex Fuel Module Not Detected 

C0BB7

COBB NexGen Flex Fuel Module Lost Comms

C0BB8

COBB CAN Gateway Module Not Detected

C0BB9

COBB CAN Gateway Module Lost Comms

C0BBA

COBB CAN Gateway Incorrect Version

C0BBB

COBB CAN Gateway General Packet Error

C0BBC

COBB CAN Gateway Custom Sensor Error

C0BBD

COBB CAN Gateway Inconsistent Sensor

C0BBE

COBB CAN Gateway Ethanol Sensor Error

C0BBF

Map Programming Error

P0000

Misfire related ("PFFFE"

P000A

Intake Cam 1 (RH) Position Slow Response

P000B

Exhaust Cam 1 (RH) Position Slow Response

P000C

Intake Cam 2 (LH) Position Slow Response

P000D

Exhaust Cam 2 (LH) Position Slow Response

P0010

Intake Cam 1 (RH) Position Actuator Circuit/Open

P0011

Intake Cam 1 (RH) Position-Timing Over-advanced or System Perf

P0013

Exhaust Cam 1 (RH) Position Actuator Circuit/Open

P0014

Exhaust Cam 1 (RH) System Range/Perf

P0016

Crank Position - Intake Cam 1 (RH) Position Correlation

P0017

Crank Position - Exhaust Cam 1 (RH) Position Correlation

P0018

Crank Position - Intake Cam 2 (LH) Position Correlation

P0019

Crank Position - Exhaust Cam 2 (LH) Position Correlation

P0020

Intake Cam 2 (LH) Position Actuator Circuit/Open

P0021

Intake Cam 2 (LH) Position-Timing Over-advanced or System Perf

P0023

Exhaust Cam 2 (LH) Position Actuator Circuit/Open

P0024

Exhaust Cam 2 (LH) System Range/Perf

P0030

Front O2 Sensor Heater Control Circuit

P0031

Front O2 Sensor Heater Control Circuit Low Input

P0032

Front O2 Sensor Heater Control Circuit High Input

P0033

Air Bypass Valve Control Circuit

P0037

Rear O2 Sensor Heater Control Circuit Low Input

P0038

Rear O2 Sensor Heater Control Circuit High Input

P0039

Air Bypass Valve Control Circuit Range/Perf

P003A

Wastegate Valve Position Exceeds Learning Limit

P0045

Wastegate Valve Circuit/Open

P0047

Wastegate Valve Circuit Low

P0068

MAP/MAF - Throttle Position Correlation

P0071

Ambient Temp Sensor Circuit Range/Perf

P0072

Ambient Temp Sensor Circuit Low

P0073

Ambient Temp Sensor Circuit High

P0087

Fuel Rail/System Pressure - Too Low

P0088

Fuel Rail/System Pressure - Too High

P0096

Intake Temp Manifold Sensor Range/Perf Problem

P0097

Intake Temp Manifold Sensor Circuit Low

P0098

Intake Temp Manifold Sensor Circuit High

P0101

MAF Sensor Circuit Range/Perf

P0102

MAF Sensor Circuit Low Input

P0103

MAF Sensor Circuit High Input

P0106

MAP Sensor Circuit Range/Perf Problem

P0107

MAP Sensor Circuit Low Input

P0108

MAP Sensor Circuit High Input

P0111

Intake Temp Sensor Range/Perf Problem

P0112

Intake Temp Sensor Circuit Low

P0113

Intake Temp Sensor Circuit High

P0116

Engine Coolant Temp Sensor Circuit Range/Perf

P0117

Engine Coolant Temp Sensor Circuit Low Input

P0118

Engine Coolant Temp Sensor Circuit High Input

P0121

TPS Circuit Range/Perf

P0122

TPS Low Input

P0123

TPS High Input

P0125

Insufficient Coolant Temp for Closed Loop Fuel Control

P0126

Insufficient Coolant Temp for Stable Operation

P0128

Coolant Temp Below Thermostat Regulating Temp

P0129

Baro. Pressure Sensor Circuit Range/Perf

P0130

Front O2 Sensor Circuit

P0131

Front O2 Sensor Circuit Low Voltage

P0132

Front O2 Sensor Circuit High Voltage

P0133

Front O2 Sensor Circuit Slow Response

P0134

Front O2 Sensor Circuit No Activity Detected

P0136

Rear O2 Sensor Circuit Malfunction

P0137

Rear O2 Sensor Circuit Low Voltage

P0138

Rear O2 Sensor Circuit High Voltage

P0139

Rear O2 Sensor Circuit Slow Response

P013A

Rear O2 Sensor Slow Response - Rich to Lean

P013B

Rear O2 Sensor Slow Response - Lean to Rich

P013E

Rear O2 Sensor Delayed Response - Rich to Lean

P013F

Rear O2 Sensor Delayed Response - Lean to Rich

P0140

Rear O2 Sensor Circuit No Activity Detected

P0141

Rear O2 Sensor Heater Circuit

P014C

Front O2 Sensor Slow Response - Rich to Lean

P014D

Front O2 Sensor Slow Response - Lean to Rich

P015A

Front O2 Sensor Delayed Response - Rich to Lean

P015B

Front O2 Sensor Delayed Response - Lean to Rich

P0171

System Too Lean (Extreme Fuel Trims)

P0172

System Too Rich (Extreme Fuel Trims)

P0181

Fuel Temp Sensor Circuit Range/Perf

P0182

Fuel Temp Sensor Circuit Low Input

P0183

Fuel Temp Sensor Circuit High Input

P0191

Fuel Rail Pressure Sensor Range/Perf

P0192

Fuel Rail Pressure Sensor Circuit Low

P0193

Fuel Rail Pressure Sensor Circuit High

P0196

Oil Temp Sensor Circuit Range/Perf

P0197

Oil Temp Sensor Circuit Sensor Low Input

P0198

Oil Temp Sensor Circuit Sensor High Input

P0201

Fuel Injector Cyl. 1 Circuit

P0202

Fuel Injector Cyl. 2 Circuit

P0203

Fuel Injector Cyl. 3 Circuit

P0204

Fuel Injector Cyl. 4 Circuit

P0222

Throttle/Pedal Position Sensor 2 ("B") Circuit Low Input

P0223

Throttle/Pedal Position Sensor 2 ("B") Circuit High Input

P0230

Fuel Pump Primary Circuit

P0234

Boost Error Overboost Limit Exceeded

P023F

Fuel Pump Secondary Circuit/Open

P0244

Boost Limit Exceeded

P0244

Wastegate Valve Range/Perf [SUB-005

P0245

Wastegate Solenoid Valve Circuit Low Input

P0246

Wastegate Solenoid Valve Circuit High Input

P0299

Boost Error Underboost Limit Exceeded

P0300

Random/Multiple Cylinder Misfire Detected

P0301

Cylinder 1 Misfire Detected

P0302

Cylinder 2 Misfire Detected

P0303

Cylinder 3 Misfire Detected

P0304

Cylinder 4 Misfire Detected

P0327

Knock Sensor 1 Circuit Low Input

P0328

Knock Sensor 1 Circuit High Input

P0332

Knock Sensor 2 Circuit Low Input

P0333

Knock Sensor 2 Circuit High Input

P0335

Crank Position Sensor "A" Circuit

P0336

Crank Position Sensor "A" Circuit Range/Perf

P0340

Cam Position Sensor "A" Circuit [SUB-001]

P0340

Intake Cam 1 (RH) Position Sensor Circuit

P0341

Cam Position Sensor "A" Circuit Range/Perf [SUB-001]

P0341

Intake Cam 1 (RH) Position Sensor Circuit Range/Perf

P0345

Intake Cam 2 (LH) Position Sensor Circuit

P0346

Intake Cam 2 (LH) Position Sensor Circuit Range/Perf

P0351

Ignition Coil A Primary/Secondary Circuit

P0352

Ignition Coil B Primary/Secondary Circuit

P0353

Ignition Coil C Primary/Secondary Circuit

P0354

Ignition Coil D Primary/Secondary Circuit

P0365

Exhaust Cam 1 (RH) Position Sensor Circuit

P0366

Exhaust Cam 1 (RH) Position Sensor Circuit Range/Perf

P0390

Exhaust Cam 2 (LH) Position Sensor Circuit

P0391

Exhaust Cam 2 (LH) Position Sensor Circuit Range/Perf

P0400

EGR Flow Malfunction

P0401

EGR Flow Too Small

P0402

EGR Flow Excessive

P0410

Air Pump Incorrect Pressure Detected

P0411

Air Pump Incorrect Flow Detected

P0413

Air Pump Switching Valve "A" Circuit Open

P0414

Air Pump Switching Valve "A" Circuit Shorted

P0416

Air Pump Switching Valve "B" Circuit Open

P0417

Air Pump Switching Valve "B" Circuit Shorted

P0418

Air Pump Control "A" Circuit Open

P0420

Catalyst System Efficiency Below Threshold

P0441

Evap System Incorrect Purge Flow

P0442

Evap System Leak Detected (Small Leak)

P0444

Evap System Purge Valve Circuit Low Input

P0445

Evap System Purge Valve Circuit High Input

P0447

Evap System Vent Low Input

P0448

Evap System Vent High Input

P0451

Evap System Pressure Sensor Range/Perf

P0452

Evap System Pressure Sensor Low Input

P0453

Evap System Pressure Sensor High Input

P0455

Evap System Leak Detected (Large Leak)

P0456

Evap System Leak Detected (Very Small Leak)

P0457

Evap System Leak Detected (Fuel Cap Loose / Off)

P0458

Evap System Purge Valve Circuit Low Input

P0459

Evap System Purge Valve Circuit High Input

P0461

Fuel Level Sensor Circuit Range/Perf

P0462

Fuel Level Sensor Circuit Low Input

P0463

Fuel Level Sensor Circuit High Input

P0464

Fuel Level Sensor Circuit Intermittent Input

P0480

Cooling Fan Relay 1 Circuit Low Input

P0481

Cooling Fan Relay 2 Circuit

P0483

Cooling Fan Rationality Check

P04AC

Evap System Purge Valve 2 ("B") Circuit Low

P04AD

Evap System Purge Valve 2 ("B") Circuit High

P04AE

Evap System Purge Valve 2 ("B") Stuck Open

P04AF

Evap System Purge Valve 2 ("B") Stuck Closed

P04DB

PCV Disconnected

P04F0

Evap System High Pressure Purge Line (CPC2) Perf

P04F1

Evap System Low Pressure Purge Line Perf

P0500

Vehicle Speed Sensor Malfunction

P0502

Vehicle Speed Sensor Circuit Low Input

P0503

Vehicle Speed Sensor Intermittent/Erratic/High

P0506

Idle Control System RPM Lower Than Expected

P0507

Idle Control System RPM Higher Than Expected

P0508

Idle Control System Circuit Low Input

P0509

Idle Control System Circuit High Input

P050A

Cold Start Idle Control System Perf

P050B

Cold Start Ignition Timing Perf

P0512

Starter Switch Request Circuit

P0519

Idle Control System Malfunction (Failsafe)

P0545

EGT Sensor Circuit Low Input

P0546

EGT Sensor Circuit High Input

P0560

System Voltage

P0562

System Voltage Low

P0563

System Voltage High

P0565

Cruise Control Set Signal Circuit Malfunction for AT

P0600

CAN or SERIAL - Improper Communication Link

P0604

Internal Control Module RAM Checksum Error

P0605

Internal Control Module ROM Checksum Error

P0606

Internal Control Module Processor

P0607

Internal Control Module Perf

P060A

Internal Control Module Monitoring Processor Perf

P060B

Internal Control Module A/D Processing Perf

P0616

Starter Relay Circuit Low

P0617

Starter Relay Circuit High

P062D

Fuel Injector Driver Circuit Performance (Bank 1)

P062F

Internal Control Module EEPROM Error

P0638

Throttle Actuator Control Range/Perf (Bank 1)

P0685

ECU Power Relay Control Circuit/Open

P0691

Cooling Fan 1 Control Circuit Low

P0692

Cooling Fan 1 Control Circuit High

P06B1

Sensor Power Supply "A" Circuit Low

P06B2

Sensor Power Supply "A" Circuit High

P06B4

Sensor Power Supply "B" Circuit Low

P06B5

Sensor Power Supply "B" Circuit High

P0700

Transmission Control System (MIL Request)

P0703

Torque Converter/Brake Switch "B" Circuit

P0705

Transmission Range Sensor Circuit (PRNDL Input)

P0710

Transmission Fluid Temperature Sensor Circuit

P0715

Torque Converter Turbine Speed Sensor Circuit Malfunction

P0716

Torque Converter Turbine Speed Sensor

P0720

Output Speed Sensor Circuit

P0725

Engine Speed Input Circuit Malfunction

P0726

Engine Speed Input Circuit Range/Perf

P0731

Gear 1 Incorrect Ratio

P0732

Gear 2 Incorrect Ratio

P0733

Gear 3 Incorrect Ratio

P0734

Gear 4 Incorrect Ratio

P0741

Torque Converter Clutch Circuit Performance or Stuck Off

P0743

Torque Converter Clutch Circuit Electrical

P0748

Pressure Control Solenoid "A" Electrical

P0753

Shift Solenoid "A" Electrical

P0758

Shift Solenoid "B" Electrical

P0771

Low Clutch Timing Solenoid

P0778

Pressure Control Solenoid "B" Electrical

P0785

Shift/Timing Solenoid

P081A

Starter Disable Circuit Low

P0851

Neutral Switch Input Circuit Low

P0852

Neutral Switch Input Circuit High

P0864

TCM Communication Circuit Range/Perf

P0865

TCM Communication Circuit Low

P0866

TCM Communication Circuit High

P1086

TGV Position Sensor 2 (LH) Circuit Low

P1087

TGV Position Sensor 2 (LH) Circuit High

P1088

TGV Position Sensor 1 (RH) Circuit Low

P1089

TGV Position Sensor 1 (RH) Circuit High

P1090

TGV System 1 (RH) Malfunction (Stuck Open)

P1091

TGV System 1 (RH) Malfunction (Stuck Closed)

P1092

TGV System 2 (LH) Malfunction (Stuck Open)

P1093

TGV System 2 (LH) Malfunction (Stuck Closed)

P1094

TGV Signal 1 (RH) Circuit Malfunction (Open)

P1095

TGV Signal 1 (RH) Circuit Malfunction (Short)

P1096

TGV Signal 2 (LH) Circuit Malfunction (Open)

P1097

TGV Signal 2 (LH) Circuit Malfunction (Short)

P1110

Baro. Pressure Sensor Low Input

P1111

Baro. Pressure Sensor High Input

P1112

Baro. Pressure Sensor Range/Perf

P1130

Front O2 Sensor Circuit Malfunction (Open)

P1131

Front O2 Sensor Circuit Malfunction (Short)

P1134

Front O2 Sensor Microcomputer Problem

P1139

Front O2 Sensor Heater Circuit Range/Perf

P113A

Rear O2 Sensor Circuit (Open)

P1141

MAF Sensor Circuit High Input

P1142

TPS Circuit Range/Perf (Low)

P1146

MAP Sensor Circuit Range/Perf (High Input)

P1152

Front O2 Sensor Circuit Range/Perf (Low)

P1153

Front O2 Sensor Circuit Range/Perf (High)

P1160

Throttle Return Spring Failure

P1191

Fuel Rail Pressure Sensor "A" Circuit No Activity Detected

P1192

Fuel Rail Pressure Sensor "B" Circuit Low

P1193

Fuel Rail Pressure Sensor "B" Circuit High

P1230

Fuel Pump Control Unit Malfunction

P1236

Fuel Injector Driver SPI Communication

P1261

Direct Fuel Injector Circuit/Open (Cyl 1)

P1262

Direct Fuel Injector Circuit/Open (Cyl 2)

P1263

Direct Fuel Injector Circuit/Open (Cyl 3)

P1264

Direct Fuel Injector Circuit/Open (Cyl 4)

P1282

Fuel Pump Relay Control Circuit

P1301

Misfire Detected (High EGT)

P1312

EGT Sensor Malfunction

P1400

Fuel Tank Pressure Control Solenoid Valve Circuit Low

P1410

Air Pump Switching Valve Stuck Open

P1418

Air Pump Control 'A' Circuit Short

P1420

Fuel Tank Pressure Control Solenoid Valve Circuit High

P1443

Vent Control Solenoid Valve Function Problem

P1446

Fuel Tank Sensor Control Valve Circuit Low

P1447

Fuel Tank Sensor Control Valve Circuit High

P1448

Fuel Tank Sensor Control Valve Range/Perf

P1449

Evap System Clog Detected (Air Filter)

P1451

Evap System Clog Detected (Pipe)

P1458

Canister Purge Control Solenoid Valve 2 Circuit Low

P1459

Canister Purge Control Solenoid Valve 2 Circuit High

P1480

Cooling Fan Relay 1 Circuit High Input

P1491

PCV Function Problem (Blow-by)

P1492

EGR Solenoid Valve Signal 1 Circuit Low Input

P1493

EGR Solenoid Valve Signal 1 Circuit High Input

P1494

EGR Solenoid Valve Signal 2 Circuit Low Input

P1495

EGR Solenoid Valve Signal 2 Circuit High Input

P1496

EGR Solenoid Valve Signal 3 Circuit Low Input

P1497

EGR Solenoid Valve Signal 3 Circuit High Input

P1498

EGR Solenoid Valve Signal 4 Circuit Low Input

P1499

EGR Solenoid Valve Signal 4 Circuit High Input

P1507

Idle Control System Malfunction (Fail Safe)

P1518

Starter Switch Circuit Low Input

P1520

Radiator Fan Relay 1 Circuit High Input

P1544

EGT Too High

P1560

Back-Up Voltage Circuit Malfunction

P1590

Neutral Position Switch Circuit High Input

P1591

Neutral Position Switch Circuit Low Input

P1594

AT Diagnosis Input Signal Circuit Malfunction

P1595

AT Diagnosis Input Signal Circuit Low Input

P1596

AT Diagnosis Input Signal Circuit High Input

P1602

Internal Control Module Programming Error

P1700

Throttle Position Sensor Circuit Malfunction (AT)

P1701

Cruise Control Set Signal Circuit Malfunction (AT)

P1703

Low Clutch Timing Control Solenoid Valve Circuit Malfunction

P1711

Engine Torque Control Signal 1 Circuit Malfunction

P1712

Engine Torque Control Signal 2 Circuit Malfunction

P2004

TGV System 1 (RH) Malfunction (Stuck Open)

P2005

TGV System 2 (LH) Malfunction (Stuck Open)

P2006

TGV System 1 (RH) Malfunction (Stuck Closed)

P2007

TGV System 2 (LH) Malfunction (Stuck Closed)

P2008

TGV Signal 1 (RH) Circuit Malfunction (Open)

P2009

TGV Signal 1 (RH) Circuit Malfunction (Low)

P2011

TGV Signal 2 (LH) Circuit Malfunction (Open)

P2012

TGV Signal 2 (LH) Circuit Malfunction (Low)

P2016

TGV Position Sensor 1 (RH) Circuit Low

P2017

TGV Position Sensor 1 (RH) Circuit High

P2021

TGV Position Sensor 2 (LH) Circuit Low

P2022

TGV Position Sensor 2 (LH) Circuit High

P2088

Intake Cam Position Actuator 1 (RH) Control Circuit Low

P2089

Intake Cam Position Actuator 1 (RH) Control Circuit High

P2090

Exhaust Cam Position Actuator 1 (RH) Control Circuit Low

P2091

Exhaust Cam Position Actuator 1 (RH) Control Circuit High

P2092

Intake Cam Position Actuator 2 (LH) Control Circuit Low

P2093

Intake Cam Position Actuator 2 (LH) Control Circuit High

P2094

Exhaust Cam Position Actuator 2 (LH) Control Circuit Low

P2095

Exhaust Cam Position Actuator 2 (LH) Control Circuit High

P2096

Post Catalyst Fuel Trim System Too Lean

P2097

Post Catalyst Fuel Trim System Too Rich

P2101

Throttle Actuator Control Motor Circuit Range/Perf

P2102

Throttle Actuator Control Motor Circuit Low

P2103

Throttle Actuator Control Motor Circuit High

P2109

Throttle/Pedal Position Sensor "A" Minimum Stop Performance

P2119

Throttle Actuator "A" Control Throttle Body Range/Perf

P2122

Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input

P2123

Throttle/Pedal Position Sensor/Switch "D" Circuit High Input

P2127

Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input

P2128

Throttle/Pedal Position Sensor/Switch "E" Circuit High Input

P2135

Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Rationality

P2138

Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Rationality

P2146

Fuel Injector Group "A" Supply Voltage Circuit/Open

P2158

Vehicle Speed Sensor "B"

P2195

Front O2 Sensor Signal Biased/Stuck Lean

P2196

Front O2 Sensor Signal Biased/Stuck Rich

P219A

Oxygen Sensors Air-Fuel Ratio Imbalance

P2226

Baro. Pressure Sensor "A" Circuit

P2227

Baro. Pressure Sensor Circuit Range Perf

P2228

Baro. Pressure Sensor Circuit Malfunction (Low Input)

P2229

Baro. Pressure Sensor Circuit Malfunction (High Input)

P2257

Air Pump Control "A" Circuit Low

P2258

Air Pump Control "A" Circuit High

P226B

Boost Limit Exceeded

P2270

Rear O2 Sensor Signal Biased/Stuck Lean

P2271

Rear O2 Sensor Signal Biased/Stuck Rich

P2401

Evap System Leak Detection Pump Control Circuit Low

P2402

Evap System Leak Detection Pump Control Circuit High

P2404

Evap System Leak Detection Pump Sense Circuit Range/Perf

P2419

Evap System Switching Valve Control Circuit Low

P2420

Evap System Switching Valve Control Circuit High

P2431

Air Pump Airflow/Pressure Sensor Circuit Range/Perf

P2432

Air Pump Airflow/Pressure Sensor Circuit Low

P2433

Air Pump Airflow/Pressure Sensor Circuit High

P2440

Air Pump Switching Valve 1 (RH) Stuck Open

P2441

Air Pump Switching Valve 1 (RH) Stuck Closed

P2442

Air Pump Switching Valve 2 (LH) Stuck Open

P2443

Air Pump Switching Valve 2 (LH) Stuck Closed

P2444

Air Pump Stuck On

P24B9

Evap System Leak Detection Pump Pressure Sensor Circuit Range/Perf

P24BA

Evap System Leak Detection Pump Pressure Sensor Circuit Low

P24BB

Evap System Leak Detection Pump Pressure Sensor Circuit High

P24D6

Evap System Pressure Sensor "B" Range/Perf

P24D7

Evap System Pressure Sensor "B" Circuit Low

P24D8

Evap System Pressure Sensor "B" Circuit High

P2530

Ignition Switch Run Position Circuit

P2564

Wastegate Valve Circuit Low

P2565

Wastegate Valve Circuit High

P2610

ECU Internal Engine Off Timer Performance

P2B00

Cylinder 1 Injection Pulse Performance

P2B01

Cylinder 2 Injection Pulse Performance

P2B02

Cylinder 3 Injection Pulse Performance

P2B03

Cylinder 4 Injection Pulse Performance

P2B08

Cylinder 1 Cold Start Injection Pulse Performance

P2B09

Cylinder 2 Cold Start Injection Pulse Performance

P2B0A

Cylinder 3 Cold Start Injection Pulse Performance

P2B0B

Cylinder 4 Cold Start Injection Pulse Performance

U0073

CAN - Communication Bus Off

U0101

CAN - Lost Communication With TCM

U0122

CAN - Lost Communication With VDC

U0140

CAN - Lost Communication With BCU

U0155

CAN - Lost Communication With IPC

U0402

CAN - Invalid Data Received From TCM

U0416

CAN - Invalid Data Received From VDC

U0422

CAN - Invalid Data Received From BCU

U0423

CAN - Invalid Data Received From IPC