01 Understanding Engine Thermostat: A Comprehensive Guide • 02 10 Reasons Your Car Is Consuming Too Much Fuel • 03 How Adaptive Cruise Control Actually Works • 04 U0003, U0004, U0005, U0006, U0007, and U0008: High Speed CA… • 05 What’s Dripping Under My Car? Identify Fluid Leaks By Colour • 06 Why You Need to Press the Brake Pedal When Shifting from P … • 07 The $30 Device That's Making Car Thieves Invisible to Police • 08 Clear the Air: What Exhaust Smoke Color Should a Healthy En… • 09 P0049 Turbocharger or Supercharger Turbine Overspeed • 10 Why Your Check Engine Light Won't Go Off: A Diagnostic Guide •

DTC codes / Every DTC code in the library

Every DTC code in the library

All 12,460 codes, generic and manufacturer-specific, in order. Filter by system or use the scanner to jump straight to one.

All P · Powertrain C · Chassis B · Body U · Network
P1125 Mazda: Throttle Position Sensor Signal Intermittent Powertrain P1125 Nissan: Tandem Throttle Position Sensor Circuit Fault Powertrain P1125 Toyota: Throttle Control Motor Circuit Powertrain P1125 Volkswagen: Long Term Fuel Trim Add Air Bank 2 System Too Rich Powertrain P1126 Mazda: Throttle Position Narrow Range Sensor Circuit Powertrain P1126 Nissan: Thermostat Function Powertrain P1126 Toyota: Magnetic Clutch Circuit Powertrain P1126 Volkswagen: Long Term Fuel Trim Add Air Bank 2 System Too Lean Powertrain P1127 Ford: Exhaust Not Warm Enough Downstream O2 Sensor Not Tested Powertrain P1127 Kia: Long Term Fuel Trim Multiplicative Air System Low Powertrain P1127 Mazda: HO2S Bank 1 Sensor 2 Heater Not On During Key On Engine Running Self Test Powertrain P1127 Toyota: ETCS Actuator Power Source Circuit Powertrain P1127 Volkswagen: Long Term Fuel Trim Bank 1 System Too Rich Powertrain P1128 Ford: Upstream Heated Oxygen Sensor Signals Reversed Powertrain P1128 Honda: MAP Lower Than Expected Powertrain P1128 Kia: Long Term Fuel Trim Multiplicative Air System High Powertrain P1128 Mazda: HO2S Bank 1 Sensor 1 Signals Swapped In Key On Engine Running Self Test Powertrain P1128 Nissan: MAP Lower Than Expected Powertrain P1128 Toyota: Throttle Control Motor Lock Powertrain P1128 Volkswagen: Long Term Fuel Trim Bank 1 System Too Lean Powertrain P1129 Ford: Downstream Heated Oxygen Sensor Signals Reversed Powertrain P1129 Honda: MAP Higher Than Expected Powertrain P1129 Mazda: Downstream HO2S Sensors Swapped Powertrain P1129 Nissan: MAP Higher Than Expected Powertrain P1129 Toyota: Electric Throttle Control System Powertrain P1129 Volkswagen: Long Term Fuel Trim Bank 2 System Too Rich Powertrain P1130 Chrysler: HO2S Circuit Low Variance Bank 1 Sensor 1 Powertrain P1130 Ford: Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 1 Powertrain P1130 GM: HO2S Circuit Low Variance Bank 1 Sensor 1 Powertrain P1130 Mazda: HO2S Bank 1 Sensor 1 Not Switching Fuel Control Limit Reached Powertrain P1130 Nissan: Swirl Control Valve Control Solenoid Valve Powertrain P1130 Subaru: Front Oxygen Sensor Circuit Malfunction Open Circuit Powertrain P1130 Toyota: Air/Fuel Sensor Circuit Range Performance Bank 1 Sensor 1 Powertrain P1130 Volkswagen: Long Term Fuel Trim Bank 2 System Too Lean Powertrain P1131 Chrysler: HO2S Circuit Low Variance Bank 1 Sensor 2 Powertrain P1131 Ford: Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 Powertrain P1131 GM: HO2S Circuit Low Variance Bank 1 Sensor 2 Powertrain P1131 Mazda: HO2S Bank 1 Sensor 1 Signal Below 0.45v AF Ratio Too Lean Powertrain P1131 Subaru: Front Oxygen Sensor Circuit Malfunction Short Circuit Powertrain P1131 Volkswagen: Bank 2 Sensor 1 Resistance Too High Powertrain P1132 BMW: O2 Sensor Heater Control Circuit Bank 1 Sensor 1 Powertrain P1132 Chrysler: HO2S Circuit Low Variance Bank 2 Sensor 1 Powertrain P1132 Ford: Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 1 Powertrain P1132 GM: HO2S Circuit Low Variance Bank 2 Sensor 1 Powertrain P1132 Mazda: HO2S Bank 1 Sensor 1 Signal Above 0.45v AF Ratio Too Rich Powertrain P1132 Volkswagen: Oxygen Sensor Heating Circuit Bank 1 + 2 Sensor 1 Short To B+ Powertrain P1133 BMW: O2 Sensor Heater Control Circuit Bank 2 Sensor 1 Powertrain P1133 Chrysler: HO2S Insufficient Switching Powertrain P1133 Ford: Bank 1 Fuel Control Shifted Lean Powertrain P1133 GM: O2 Sensor Insufficient Switching (Bank 1 Sensor 1) Powertrain P1133 Mazda: Bank 1 Fuel Control Shifted Lean Powertrain P1133 Toyota: Air/Fuel Sensor Circuit Response Bank 1 Sensor 1 Powertrain P1133 Volkswagen: Oxygen Sensor Heating Circuit Bank 1 + 2 Sensor 1 Electrical Malfunction Powertrain P1134 BMW: O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 1 Powertrain P1134 Chrysler: HO2S Transition Time Ratio Powertrain P1134 Ford: Bank 1 Fuel Control Shifted Rich Powertrain P1134 GM: O2 Sensor Transition Time (Bank 1 Sensor 1) Powertrain P1134 Mazda: Bank 1 Fuel Control Shifted Rich Powertrain P1134 Subaru: Front Oxygen AF Sensor Microcomputer Problem Powertrain P1134 Volkswagen: Oxygen Sensor Heating Circuit Bank 1 + 2 Sensor 2 Short To B+ Powertrain P1135 BMW: O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 1 Powertrain P1135 Chrysler: HO2S Lean Average Bank 1 Sensor 1 Powertrain P1135 Ford: Pedal Position Sensor A Circuit Intermittent Powertrain P1135 GM: HO2S Lean Average Bank 1 Sensor 1 Powertrain P1135 Mazda: HO2S Bank 1 Sensor 1 Heater Circuit Low Input Powertrain P1135 Nissan: Intake Valve Timing Control Circuit Bank 2 Powertrain P1135 Toyota: Air/Fuel Sensor Heater Circuit Response Bank 1 Sensor 1 Powertrain P1135 Volkswagen: Oxygen Sensor Heating Circuit Bank 1 + 2 Sensor 2 Electrical Malfunction Powertrain P1136 BMW: O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 1 Powertrain P1136 Chrysler: HO2S Rich Average Bank 1 Sensor 1 Powertrain P1136 GM: HO2S Rich Average Bank 1 Sensor 1 Powertrain P1136 Jaguar: Control Box Fan Circuit Powertrain P1136 Mazda: HO2S Bank 1 Sensor 1 Heater Circuit High Input Powertrain P1136 Volkswagen: Long Term Fuel Trim Add Fuel Bank 1 System Too Lean Powertrain P1137 BMW: O2 Sensor Heater Circuit Signal Intermittent Bank 1 Sensor 2 Powertrain P1137 Chrysler: HO2S Bank 1 Sensor 2 Lean Or Low Voltage Powertrain P1137 Ford: Lack of Downstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 Powertrain P1137 GM: O2 Sensor Low Voltage During Power Enrichment (Bank 1 Sensor 2) Powertrain P1137 Jaguar: Lack Of HO2S12 Switches Sensor Indicates Lean Powertrain P1137 Mazda: HO2S Bank 1 Sensor 2 Not Switching Fuel Control Limit Reached Powertrain P1137 Subaru: Front Oxygen AF Sensor Circuit Range Performance Problem Powertrain P1137 Volkswagen: Long Term Fuel Trim Add Fuel Bank 1 System Too Rich Powertrain P1138 BMW: O2 Sensor Heater Circuit Low Voltage Bank 1 Sensor 2 Powertrain P1138 Chrysler: HO2S Bank 1 Sensor 2 Rich Or High Voltage Powertrain P1138 Ford: Lack of Downstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 1 Powertrain P1138 GM: O2 Sensor High Voltage During Decel Fuel Cutoff Powertrain P1138 Jaguar: Lack Of HO2S12 Switches Sensor Indicates Rich Powertrain P1138 Mazda: HO2S Bank 1 Sensor 2 Signal Above 0.45v AF Ratio Too Rich Powertrain P1138 Volkswagen: Long Term Fuel Trim Add Fuel Bank 2 System Too Lean Powertrain P1139 BMW: O2 Sensor Heater Circuit High Voltage Bank 1 Sensor 2 Powertrain P1139 Chrysler: HO2S Insufficient Switching Bank 1 Sensor 2 Powertrain P1139 Ford: Water In Fuel Indicator Circuit Malfunction Powertrain P1139 GM: O2 Sensor Insufficient Switching (Bank 1 Sensor 2) Powertrain P1139 Subaru: Front Oxygen AF Sensor #1 Heater Circuit Performance Range Problem Powertrain P1139 Volkswagen: Long Term Fuel Trim Add Fuel Bank 2 System Too Rich Powertrain P1140 BMW: Mass Or Volume Air Flow Circuit Range Performance Problem Powertrain P1140 Chrysler: HO2S Transition Time Ratio Bank 1 Sensor 2 Powertrain P1140 Ford: Water In Fuel Condition Powertrain P1140 GM: O2 Sensor Sluggish (Bank 1 Sensor 2) Powertrain P1140 Kia: Load Calculation Cross Check Powertrain
Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage