OBD fault code library
Look up any P or U code to see what it means, what causes it, the parts involved and how it gets fixed.
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Fault codes
P1131
Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1
Mercedes Benz
Fuel and Air Metering
Medium severity
P1136
Crankshaft Position Sensor And Or Camshaft Position Sensor Input Signal to PCM Concerns
Mercedes Benz
Fuel and Air Metering
High severity
P1139
Water In Fuel Indicator Circuit Malfunction
Mercedes Benz
Fuel and Air Metering
Medium severity
P1146
Heated Oxygen Sensor 2 Minimum Voltage Monitoring Bank 1
Mercedes Benz
Fuel and Air Metering
Medium severity
P1147
Heated Oxygen Sensor 2 Maximum Voltage Monitoring Bank 1
Mercedes Benz
Fuel and Air Metering
Medium severity
P1150
Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 2
Mercedes Benz
Fuel and Air Metering
Medium severity
P1152
Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 2
Mercedes Benz
Fuel and Air Metering
Medium severity
P1157
Lack of O2 Switches Bank 2 Sensor 2 Indicates Lean
Mercedes Benz
Fuel and Air Metering
Medium severity
P1160
Intake Air Temperature Sensor Short To Ground
Mercedes Benz
Fuel and Air Metering
High severity
P1164
Air/Fuel Ratio Sensor 1 Range/Performance Problem
Mercedes Benz
Fuel and Air Metering
High severity
P1165
Air/Fuel Ratio Sensor 1 Circuit Range/Performance
Mercedes Benz
Fuel and Air Metering
High severity
P1179
Linear Oxygen Sensor Pump Current Short To Ground
Mercedes Benz
Fuel and Air Metering
Medium severity
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