OBD-II · CODE FAMILY
Codes P11xx — what they mean
P11xx is a family of 100 manufacturer-specific OBD2 codes covering powertrain and electrical faults. Each P11xx code below links to its own page with causes, diagnosis and the parts to fix it.
100 codesPowertrain systems
FAMILY
RangeP1100–P1199
Codes100
TROUBLEATLAS APP
01All codes in this family
One rich, indexed page — not thousands of empty ones. Each code links to its own page.
| Code | Meaning — click to open the code page | System | Severity |
|---|---|---|---|
| P1100 | Mass Air Flow Sensor Intermittent → /auto/codes/p1100/ Mass Air Flow Sensor Intermittent | Powertrain | Medium |
| P1101 | The Chevy Cruze is a compact car that’s been in production s → /auto/codes/p1101/ The Chevy Cruze is a compact car that’s been in production since 2008. It hasn’t been the most reliable vehicle on the market but isn’t generally know | Powertrain | Medium |
| P1102 | HO2S11 Heater Circuit High Voltage → /auto/codes/p1102/ HO2S11 Heater Circuit High Voltage | Powertrain | Medium |
| P1103 | Mass Air Flow Sensor Signal Inconsistent With Engine Speed → /auto/codes/p1103/ Mass Air Flow Sensor Signal Inconsistent With Engine Speed | Powertrain | Medium |
| P1104 | Mass Air Flow Sensor Circuit Ground → /auto/codes/p1104/ Mass Air Flow Sensor Circuit Ground | Powertrain | Medium |
| P1105 | Secondary Vacuum Sensor Circuit → /auto/codes/p1105/ Secondary Vacuum Sensor Circuit | Powertrain | Medium |
| P1106 | BARO Circuit Range Performance Malfunction → /auto/codes/p1106/ BARO Circuit Range Performance Malfunction | Powertrain | Medium |
| P1107 | BARO Circuit Low Input → /auto/codes/p1107/ BARO Circuit Low Input | Powertrain | Medium |
| P1108 | BARO Circuit High Input → /auto/codes/p1108/ BARO Circuit High Input | Powertrain | Medium |
| P1109 | Secondary Port Throttle System → /auto/codes/p1109/ Secondary Port Throttle System | Powertrain | Medium |
| P1110 | Intake Air Temperature Sensor Signal Dynamic Chamber Circuit → /auto/codes/p1110/ Intake Air Temperature Sensor Signal Dynamic Chamber Circuit | Powertrain | Medium |
| P1111 | Engine Coolant Temperature Radiator Outlet Sensor Low Input → /auto/codes/p1111/ Engine Coolant Temperature Radiator Outlet Sensor Low Input | Powertrain | Medium |
| P1112 | Engine Coolant Temperature Radiator Outlet Sensor High Input → /auto/codes/p1112/ Engine Coolant Temperature Radiator Outlet Sensor High Input | Powertrain | Medium |
| P1113 | Intake Resonance Switchover Valve Circuit → /auto/codes/p1113/ Intake Resonance Switchover Valve Circuit | Powertrain | Medium |
| P1114 | Engine Coolant Temperature (ECT) Sensor Circuit Intermittent → /auto/codes/p1114/ Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage | Powertrain | Medium |
| P1115 | Coolant Temperature Sensor Plausibility → /auto/codes/p1115/ Coolant Temperature Sensor Plausibility | Powertrain | Medium |
| P1116 | Mass Or Volume Air Flow Circuit Range Performance Problem Ba → /auto/codes/p1116/ Mass Or Volume Air Flow Circuit Range Performance Problem Bank 2 | Powertrain | Medium |
| P1117 | Mass Or Volume Air Flow Circuit Low Input Bank 2 → /auto/codes/p1117/ Mass Or Volume Air Flow Circuit Low Input Bank 2 | Powertrain | Medium |
| P1118 | Mass Or Volume Air Flow Circuit High Input Bank 2 → /auto/codes/p1118/ Mass Or Volume Air Flow Circuit High Input Bank 2 | Powertrain | Medium |
| P1119 | ECT Signal Out Of Rage With TFT Sensor → /auto/codes/p1119/ ECT Signal Out Of Rage With TFT Sensor | Powertrain | Medium |
| P1120 | Pedal Position Sensor Circuit → /auto/codes/p1120/ Pedal Position Sensor Circuit | Powertrain | Medium |
| P1121 | Throttle Position Lower Than Expected → /auto/codes/p1121/ Throttle Position Lower Than Expected | Powertrain | Medium |
| P1122 | Throttle Position Higher Than Expected → /auto/codes/p1122/ Throttle Position Higher Than Expected | Powertrain | Medium |
| P1123 | Pedal Position Sensor 1 High Input → /auto/codes/p1123/ Pedal Position Sensor 1 High Input | Powertrain | Medium |
| P1124 | Throttle Position Sensor Out of Self-Test Range → /auto/codes/p1124/ Throttle Position Sensor Out of Self-Test Range | Powertrain | Medium |
| P1125 | Accelerator Pedal Position (APP) System → /auto/codes/p1125/ Accelerator Pedal Position (APP) System | Powertrain | Medium |
| P1126 | Magnetic Clutch Circuit Malfunction → /auto/codes/p1126/ Magnetic Clutch Circuit Malfunction | Powertrain | Medium |
| P1127 | Exhaust Not Warm Enough Downstream O2 Sensor Not Tested → /auto/codes/p1127/ Exhaust Not Warm Enough Downstream O2 Sensor Not Tested | Powertrain | Medium |
| P1128 | MAP Lower Than Expected → /auto/codes/p1128/ MAP Lower Than Expected | Powertrain | Medium |
| P1129 | MAP Higher Than Expected → /auto/codes/p1129/ MAP Higher Than Expected | Powertrain | Medium |
| P1130 | HO2S Circuit Low Variance Bank 1 Sensor 1 → /auto/codes/p1130/ HO2S Circuit Low Variance Bank 1 Sensor 1 | Powertrain | Medium |
| P1131 | If you are a proud Ford owner, you don’t ever want to deal w → /auto/codes/p1131/ If you are a proud Ford owner, you don’t ever want to deal with a Check Engine Light. Seeing the P1131 code can cause your heart to sink, but it might | Powertrain | Medium |
| P1132 | O2 Sensor Heater Control Circuit Bank 1 Sensor 1 → /auto/codes/p1132/ O2 Sensor Heater Control Circuit Bank 1 Sensor 1 | Powertrain | Medium |
| P1133 | O2 Sensor Heater Control Circuit Bank 2 Sensor 1 → /auto/codes/p1133/ O2 Sensor Heater Control Circuit Bank 2 Sensor 1 | Powertrain | Medium |
| P1134 | O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 1 → /auto/codes/p1134/ O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 1 | Powertrain | Medium |
| P1135 | O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 1 → /auto/codes/p1135/ O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 1 | Powertrain | Medium |
| P1136 | O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 1 → /auto/codes/p1136/ O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 1 | Powertrain | Medium |
| P1137 | O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 2 → /auto/codes/p1137/ O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 2 | Powertrain | Medium |
| P1138 | O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 2 → /auto/codes/p1138/ O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 2 | Powertrain | Medium |
| P1139 | O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 2 → /auto/codes/p1139/ O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 2 | Powertrain | Medium |
| P1140 | Mass Or Volume Air Flow Circuit Range Performance Problem → /auto/codes/p1140/ Mass Or Volume Air Flow Circuit Range Performance Problem | Powertrain | Medium |
| P1141 | HO2S Bank 1 Sensor 2 Average Voltage Level → /auto/codes/p1141/ HO2S Bank 1 Sensor 2 Average Voltage Level | Powertrain | Medium |
| P1142 | Fuel Restriction Condition → /auto/codes/p1142/ Fuel Restriction Condition | Powertrain | Medium |
| P1143 | HO2S Bank 1 Sensor 3 Lean Or Low Voltage → /auto/codes/p1143/ HO2S Bank 1 Sensor 3 Lean Or Low Voltage | Powertrain | Medium |
| P1144 | HO2S Bank 1 Sensor 3 Rich Or High Voltage → /auto/codes/p1144/ HO2S Bank 1 Sensor 3 Rich Or High Voltage | Powertrain | Medium |
| P1145 | Solenoid Valve Running Losses Control Circuit Electrical → /auto/codes/p1145/ Solenoid Valve Running Losses Control Circuit Electrical | Powertrain | Medium |
| P1146 | Pressure Sensor Circuit Range Performance Problem High Input → /auto/codes/p1146/ Pressure Sensor Circuit Range Performance Problem High Input | Powertrain | Medium |
| P1147 | Oxygen Sensor Control Bank 2 System Too Lean → /auto/codes/p1147/ Oxygen Sensor Control Bank 2 System Too Lean | Powertrain | Medium |
| P1148 | Closed Loop Control Bank 1 → /auto/codes/p1148/ Closed Loop Control Bank 1 | Powertrain | Medium |
| P1149 | Oxygen Sensor Control Bank 1 Out Of Range → /auto/codes/p1149/ Oxygen Sensor Control Bank 1 Out Of Range | Powertrain | Medium |
| P1150 | Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel L → /auto/codes/p1150/ Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 2 | Powertrain | Medium |
| P1151 | O2 Sensor Heater Circuit Signal Intermittent Bank 2 Sensor 1 → /auto/codes/p1151/ O2 Sensor Heater Circuit Signal Intermittent Bank 2 Sensor 1 | Powertrain | Medium |
| P1152 | O2 Sensor Heater Circuit Low Voltage Bank 2 Sensor 1 → /auto/codes/p1152/ O2 Sensor Heater Circuit Low Voltage Bank 2 Sensor 1 | Powertrain | Medium |
| P1153 | O2 Sensor Heater Circuit High Voltage Bank 2 Sensor 1 → /auto/codes/p1153/ O2 Sensor Heater Circuit High Voltage Bank 2 Sensor 1 | Powertrain | Medium |
| P1154 | HO2S Transition Time Ratio → /auto/codes/p1154/ HO2S Transition Time Ratio | Powertrain | Medium |
| P1155 | O2 Sensor Heater Circuit Intermittent Bank 2 Sensor 2 → /auto/codes/p1155/ O2 Sensor Heater Circuit Intermittent Bank 2 Sensor 2 | Powertrain | Medium |
| P1156 | O2 Sensor Heater Circuit Low Voltage Bank 2 Sensor 2 → /auto/codes/p1156/ O2 Sensor Heater Circuit Low Voltage Bank 2 Sensor 2 | Powertrain | Medium |
| P1157 | O2 Sensor Heater Circuit High Voltage Bank 2 Sensor 2 → /auto/codes/p1157/ O2 Sensor Heater Circuit High Voltage Bank 2 Sensor 2 | Powertrain | Medium |
| P1158 | Fuel Trim Adaptation Additive Bank 1 Low → /auto/codes/p1158/ Fuel Trim Adaptation Additive Bank 1 Low | Powertrain | Medium |
| P1159 | Fuel Trim Adaptation Additive Bank 1 High → /auto/codes/p1159/ Fuel Trim Adaptation Additive Bank 1 High | Powertrain | Medium |
| P1160 | Fuel Trim Adaptation Additive Bank 2 Low → /auto/codes/p1160/ Fuel Trim Adaptation Additive Bank 2 Low | Powertrain | Medium |
| P1161 | Fuel Trim Adaptation Additive Bank 2 High → /auto/codes/p1161/ Fuel Trim Adaptation Additive Bank 2 High | Powertrain | Medium |
| P1162 | HO2S11 Circuit Fault Bank 1 Sensor 1 → /auto/codes/p1162/ HO2S11 Circuit Fault Bank 1 Sensor 1 | Powertrain | Medium |
| P1163 | HO2S11 Slow Response Bank 1 Sensor 1 → /auto/codes/p1163/ HO2S11 Slow Response Bank 1 Sensor 1 | Powertrain | Medium |
| P1164 | HO2S11 Circuit Fault Bank 1 Sensor 1 → /auto/codes/p1164/ HO2S11 Circuit Fault Bank 1 Sensor 1 | Powertrain | Medium |
| P1165 | HO2S11 Slow Response Bank 1 Sensor 1 → /auto/codes/p1165/ HO2S11 Slow Response Bank 1 Sensor 1 | Powertrain | Medium |
| P1166 | HO2S11 Heater Circuit Fault Bank 1 Sensor 1 → /auto/codes/p1166/ HO2S11 Heater Circuit Fault Bank 1 Sensor 1 | Powertrain | Medium |
| P1167 | HO2S11 Heater Circuit VS+ Fault Bank 1 Sensor 1 → /auto/codes/p1167/ HO2S11 Heater Circuit VS+ Fault Bank 1 Sensor 1 | Powertrain | Medium |
| P1168 | HO2S11 Label Circuit Low Voltage Fault Bank 1 Sensor 1 → /auto/codes/p1168/ HO2S11 Label Circuit Low Voltage Fault Bank 1 Sensor 1 | Powertrain | Medium |
| P1169 | HO2S11 Label Circuit High Voltage Fault Bank 1 Sensor 1 → /auto/codes/p1169/ HO2S11 Label Circuit High Voltage Fault Bank 1 Sensor 1 | Powertrain | Medium |
| P1170 | Bank To Bank Fuel Trim Offset → /auto/codes/p1170/ Bank To Bank Fuel Trim Offset | Powertrain | Medium |
| P1171 | Fuel System Lean During Acceleration → /auto/codes/p1171/ Fuel System Lean During Acceleration | Powertrain | Medium |
| P1172 | Rotor Control Fault → /auto/codes/p1172/ Rotor Control Fault | Powertrain | Medium |
| P1173 | Rotor Calibration Fault → /auto/codes/p1173/ Rotor Calibration Fault | Powertrain | Medium |
| P1174 | Fuel Trim Adaptation Additive Bank 1 Malfunction → /auto/codes/p1174/ Fuel Trim Adaptation Additive Bank 1 Malfunction | Powertrain | Medium |
| P1175 | Fuel Trim Adaptation Additive Bank 2 Malfunction → /auto/codes/p1175/ Fuel Trim Adaptation Additive Bank 2 Malfunction | Powertrain | Medium |
| P1176 | O2 Sensor Slow Response Bank 1 → /auto/codes/p1176/ O2 Sensor Slow Response Bank 1 | Powertrain | Medium |
| P1177 | O2 Sensor Slow Response Bank 2 → /auto/codes/p1177/ O2 Sensor Slow Response Bank 2 | Powertrain | Medium |
| P1178 | O2 Sensor Signal Circuit Slow Switching From Rich to Lean Ba → /auto/codes/p1178/ O2 Sensor Signal Circuit Slow Switching From Rich to Lean Bank 1 Sensor 1 | Powertrain | Medium |
| P1179 | O2 Sensor Signal Circuit Slow Switching From Rich to Lean Ba → /auto/codes/p1179/ O2 Sensor Signal Circuit Slow Switching From Rich to Lean Bank 2 Sensor 1 | Powertrain | Medium |
| P1180 | O2 Sensor Signal Circuit Slow Switching From Rich to Lean Ba → /auto/codes/p1180/ O2 Sensor Signal Circuit Slow Switching From Rich to Lean Bank 1 Sensor 2 | Powertrain | Medium |
| P1181 | O2 Sensor Signal Circuit Slow Switching From Rich to Lean Ba → /auto/codes/p1181/ O2 Sensor Signal Circuit Slow Switching From Rich to Lean Bank 2 Sensor 2 | Powertrain | Medium |
| P1182 | O2 Sensor Bank 1 Sensor 2 Open Circuit During Coast Down Fue → /auto/codes/p1182/ O2 Sensor Bank 1 Sensor 2 Open Circuit During Coast Down Fuel Cut-off | Powertrain | Medium |
| P1183 | O2 Sensor Bank 2 Sensor 2 Open Circuit During Coast Down Fue → /auto/codes/p1183/ O2 Sensor Bank 2 Sensor 2 Open Circuit During Coast Down Fuel Cut-off | Powertrain | Medium |
| P1184 | Engine Oil Temperature Out Of Self Test Range → /auto/codes/p1184/ Engine Oil Temperature Out Of Self Test Range | Powertrain | Medium |
| P1185 | Engine Oil Temperature Circuit → /auto/codes/p1185/ Engine Oil Temperature Circuit | Powertrain | Medium |
| P1186 | O2 Sensor Heater Control Circuit Bank 1 Sensor 2 → /auto/codes/p1186/ O2 Sensor Heater Control Circuit Bank 1 Sensor 2 | Powertrain | Medium |
| P1187 | O2 Sensor Heater Control Circuit Bank 2 Sensor 2 → /auto/codes/p1187/ O2 Sensor Heater Control Circuit Bank 2 Sensor 2 | Powertrain | Medium |
| P1188 | Fuel Control Bank 1 Sensor 1 → /auto/codes/p1188/ Fuel Control Bank 1 Sensor 1 | Powertrain | Medium |
| P1189 | Fuel Control Bank 2 Sensor 1 → /auto/codes/p1189/ Fuel Control Bank 2 Sensor 1 | Powertrain | Medium |
| P1190 | Pre-Catalyst Fuel Trim System Bank 1 → /auto/codes/p1190/ Pre-Catalyst Fuel Trim System Bank 1 | Powertrain | Medium |
| P1191 | Pre-Catalyst Fuel Trim System Bank 2 → /auto/codes/p1191/ Pre-Catalyst Fuel Trim System Bank 2 | Powertrain | Medium |
| P1192 | Post-Catalyst Fuel Trim System Bank 1 → /auto/codes/p1192/ Post-Catalyst Fuel Trim System Bank 1 | Powertrain | Medium |
| P1193 | Post-Catalyst Fuel Trim System Bank 2 → /auto/codes/p1193/ Post-Catalyst Fuel Trim System Bank 2 | Powertrain | Medium |
| P1194 | Incorrect Or Irrational Performance Has Been Detected For Th → /auto/codes/p1194/ Incorrect Or Irrational Performance Has Been Detected For The PWM | Powertrain | Medium |
| P1195 | O2 Sensor 1/1 Bank 1 Sensor 1 Slow During Catalyst Monitor → /auto/codes/p1195/ O2 Sensor 1/1 Bank 1 Sensor 1 Slow During Catalyst Monitor | Powertrain | Medium |
| P1196 | O2 Sensor 2/1 Bank 2 Sensor 1 Slow During Catalyst Monitor → /auto/codes/p1196/ O2 Sensor 2/1 Bank 2 Sensor 1 Slow During Catalyst Monitor | Powertrain | Medium |
| P1197 | O2 Sensor 1/2 Bank 1 Sensor 2 Slow During Catalyst Monitor → /auto/codes/p1197/ O2 Sensor 1/2 Bank 1 Sensor 2 Slow During Catalyst Monitor | Powertrain | Medium |
| P1198 | Radiator Temperature Sensor Voltage Too High → /auto/codes/p1198/ Radiator Temperature Sensor Voltage Too High | Powertrain | Medium |
| P1199 | Radiator Temperature Sensor Voltage Too Low → /auto/codes/p1199/ Radiator Temperature Sensor Voltage Too Low | Powertrain | Medium |
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