OBD II Trouble Code Definitions

Switch to OBD1 Trouble Codes
OBD2 Diagnostic Trouble Code Tables
P0100 - P0199 | P0200 - P0299 | P0300 - P0399 | P0400 - P0499 | P0500 - P0599 | P0600 - P0699 | P0700 - P0799 | P0800 - P0899 | P1000 - P1099 | P1100 - P1199 | P1200 - P1299 | P1300 - P1399 | P1400 - P1499 | P1500 - P1599 | P1600 - P1699 | P1700 - P1799 | P1800 - P1899 |
  • - Manifold Absolute Pressure (MAP) Sensor Malfunction (Open/Short)
  • - MAF Out Of Range
  • - Manifold Absolute Pressure (MAP) Sensor Malfunction - Low Voltage
  • P1103
    - Manifold Absolute Pressure (MAP) Sensor Malfunction - High Voltage
  • - MAP/BARO Switch Solenoid Valve
  • - Barometric pressure circuit problem
  • - Barometric pressure circuit low inputP1108,BARO to MAP signal circuit comparison too high
  • - Barometric pressure circuit high input
  • - Atmospheric Pressure Sensor Low Input
  • - Intake Air Temperature (IAT) sensor intermittent high voltage
  • P1112
    - Engine Coolant Temperature Radiator Outlet Sensor High Input
  • P1114
    - Engine Coolant Temperature (ECT) sensor circuit intermittent low voltage
  • - Engine Coolant Temperature (ECT) sensor circuit intermittent high voltage
  • - Mass Or Volume Air Flow Circuit Range/Performance Problem (Bank 2)
  • P1117
    - Mass Or Volume Air Flow Circuit Low Input (Bank 2)
  • P1118
    - Mass Or Volume Air Flow Circuit High Input (Bank 2)
  • - TPS Out Of Range Low
  • - Throttle Position (TP) Sensor Inconsistent With MAF Sensor High Voltage
  • - Throttle Position (TP) Sensor Inconsistent With MAF Sensor Low Voltage
  • - Pedal Position 1 High Input
  • - TPS Out Of Self Test Range
  • - TPS Intermittent
  • - Thermostat Function
  • P1127
    - Exhaust Not Warm Enough, Downstream Sensor Not Tested
  • - MAP Lower Than Expected
  • - MAP Higher Than Expected
  • - Lack Of HO2S-11, Fuel Trim At Limit
  • - HO2S 11 Indicates Lean
  • - O2 Sensor Heater Control Circuit (Bank 1 Sensor 1)
  • - Heated Oxygen Sensor (HO2S) insufficient switching bank 1 sensor 1(Rear Bank)
  • P1134
    - Heated Oxygen Sensor (HO2S) transition time ratio bank 1 sensor 1 (Rear Bank)
  • - O2 Sensor Heater Circuit Low Voltage (Bank 1 Sensor 1)
  • - O2 Sensor Heater Circuit High Voltage (Bank 1 Sensor 1)
  • - O2 Sensor Heater Circuit Signal Intermittent (Bank 1 Sensor 2)
  • - O2 Sensor Heater Circuit Low Voltage (Bank 1 Sensor 2)
  • P1139
    - O2 Sensor Heater Circuit High Voltage (Bank 1 Sensor 2)
  • P1140
    - Mass or Volume Air Flow Circuit Range/Performance Problem
  • P1142
    - TPS Circuit Range/Perf. Problem (Low Input)
  • P1144
    - Mass Air Flow Sensor Open/Short To Ground
  • P1145
    - Solenoid Valve Running Losses Control Circuit Electrical
  • P1146
    - Pressure Sensor Circuit Range/Perf (High Input)
  • P1147
    - ETS Sub Accel Position Sensor 1 Malfunction
  • - Closed Loop Control (Bank 1)
  • - Lack Of HO2S-21 Switch Fuel Trim At Limit
  • - O2 Sensor Heater Circuit Signal Intermittent (Bank 2 Sensor 1)
  • - O2 Sensor Heater Circuit Low Voltage (Bank 2 Sensor 1)
  • - O2 Sensor Heater Circuit High Voltage (Bank 2 Sensor 1)
  • - Heated Oxygen Sensor (HO2S) transition time ratio bank 2 sensor 1(Front Bank)
  • - O2 Sensor Heater Circuit Intermittent (Bank 2 Sensor 2)
  • P1156
    - O2 Sensor Heater Circuit Low Voltage (Bank 2 Sensor 2)
  • - O2 Sensor Heater Circuit High Voltage (Bank 2 Sensor 2)
  • - Fuel Trim Inactive Bank 1 Low
  • - Fuel Trim Inactive Bank 1 High
  • - Fuel Trim Inactive Bank 2 Low
  • - Fuel Trim Inactive Bank 2 High
  • P1162
    - Fuel Trim Inactive Per Ignition Bank 1 Low
  • - Fuel Trim Inactive Per Ignition Bank 1 High
  • P1164
    - Fuel Trim Inactive Per Ignition Bank 2 Low
  • P1165
    - Fuel Trim Inactive Per Ignition Bank 2 High
  • - FRP Sensor In Range But Low
  • P1169
    - FRP Sensor In Range But High
  • - Electronic Throttle System Open
  • - Electronic Throttle System Motor Current
  • - Electronic Throttle System Rationality Malfunction
  • - Fuel Trim Adaptation Inactive Bank 1 Malfunction
  • - Fuel Trim Adaptation Inactive Bank 2 Malfunction
  • P1176
    - O2 Sensor Slow Response Bank 1
  • P1177
    - O2 Sensor Slow Response Bank 2
  • - O2 Sensor Signal Circuit Slow Switching From Rich to Lean (Bank 1 Sensor 1)
  • P1179
    - O2 Sensor Signal Circuit Slow Switching From Rich to Lean (Bank 2 Sensor 1)
  • P1180
    - O2 Sensor Signal Circuit Slow Switching From Rich to Lean (Bank 1 Sensor 2)
  • P1181
    - O2 Sensor Signal Circuit Slow Switching From Rich to Lean (Bank 2 Sensor 2)
  • P1182
    - O2 Sensor (Bank 1 Sensor 2) Open Circuit During Coast Down Fuel Cut-off
  • P1183
    - EOT Sensor Circuit Malfunction
  • P1184
    - EOT Sensor Out Of Range
  • P1186
    - O2 Sensor Heater Control Circuit (Bank 1 Sensor 2)
  • - O2 Sensor Heater Control Circuit (Bank 2 Sensor 2)
  • - Fuel Control (Bank 1 Sensor 1)
  • - Fuel Control (Bank 2 Sensor 1)
  • - Pre-catalyst Fuel Trim System Bank 1
  • P1191
    - Pre-catalyst Fuel Trim System Bank 2
  • - Post-catalyst Fuel Trim System Bank 1
  • - Post-catalyst Fuel Trim System Bank 2
  • - 1/1 O2 Sensor Slow During Catalyst Monitor
  • P1196
    - 2/1 O2 Sensor Slow During Catalyst Monitor
  • P1197
    - 1/2 O2 Sensor Slow During Catalyst Monitor
  • P1198
    - Radiator Temperature Sensor Volts Too High
  • P1199
    - Radiator Temperature Sensor Volts Too Low
    • Please go to our P1100-P1199 forum for aditional codes and for questions and answers about your particular trouble code.