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
P1121
Throttle Position Sensor Inconsistent with Mass Air Flow Sensor
Maruti Suzuki
Fuel and Air Metering
High severity
P1123
Throttle Position Sensor Circuit Intermittent High Voltage
Maruti Suzuki
Fuel and Air Metering
High severity
P1124
Throttle Position Sensor Out of Self-Test Range
Maruti Suzuki
Fuel and Air Metering
High severity
P1129
Downstream Oxygen Sensors Swapped from Bank to Bank
Maruti Suzuki
Fuel and Air Metering
Medium severity
P1131
HO2S11 Circuit Low Voltage Shift/High Voltage
Maruti Suzuki
Fuel and Air Metering
Medium severity
P1138
HO2S Circuit High Voltage During Decelerator Fuel Cut-Off Sensor 2
Maruti Suzuki
Fuel and Air Metering
Medium severity
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