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
U1126
Communication error between steering angle sensor and ESP (electronic stability) control module
Maruti Suzuki
Communication Network System
High severity
U1139
Communication error between 4WD module and ESP (electronic stability) control module
Maruti Suzuki
Communication Network System
High severity
P1102
Hot film Mass air flow sensor signals (HFM7) error
Mahindra
Fuel and Air Metering
High severity
P1103
Hot film Mass air flow sensor signals (HFM7) error
Mahindra
Fuel and Air Metering
High severity
P1100
Hot film Mass air flow sensor signals (HFM7) error
Mahindra
Fuel and Air Metering
High severity
P16A3
Internal malfunction in AC control module
Mahindra
Vehicle Speed and Idle Control System
High severity
U100C
Communication error in cabin temperature sensor (AC)
Mahindra
Communication Network System
High severity
U0423
Communication error in instrument cluster (IC)
Mahindra
Communication Network System
High severity
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