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Try entering a fault code

Type the code you read during diagnosis, the make or the symptom: find out straight away what it is, on which vehicles it has been found and which symptoms it can present.

  1. Search Diagnosis code, make or symptom: the list filters automatically as you type.
  2. Analyse the fault Find out what the fault is, which systems and components are involved, which symptoms it presents and on which vehicles it has been found.
  3. Read the solution Cause, procedure, resolution: all in Sema Repair
Not sure where to start? Find out how to interpret the five characters of a code, recognise the area of the vehicle it refers to and understand why the code does not necessarily identify the faulty component.

Here you will find 72 sample case studies. In Sema Repair, the database exceeds 65,000 fault cases.

P0238 Loss of performance with black smoke from the exhaust Alfa Romeo · Fuel injection P0638 Engine warning light with loss of performance Alfa Romeo · Fuel injection P24AE Malfunction indicator and injection warning lights on Alfa Romeo · Fuel injection P2294 Engine warning light with metallic noise from the high-pressure pump Audi · Fuel injection P0115 Coolant boiling at high speed with the coolant warning light on Citroën · Engine cooling P0340 The engine turns over but will not start Citroën · Fuel injection P0402 Loss of performance with the engine warning light on Citroën · Fuel injection P2137 Severe loss of performance with the engine warning light on Citroën · Fuel injection B1001 Faulty instrument cluster, central locking and starting Fiat · Electronics B1003 Faulty central locking with airbag and power steering lights on Fiat · Electronics B10AA Air conditioning compressor not powered and odometer flashing Fiat · Air conditioning B1105 Immobiliser and power steering lights on with a stiff steering wheel Fiat · Electronics B1112 No start and instrument cluster not lighting up Fiat · Electronics B1906 Cabin heating not working and temperature reading flashing Fiat · Air conditioning C1214 The engine will not start and the keyless fob will not unlock the doors Fiat · Electronics C2280 Handbrake warning light on and Start&Stop inactive Fiat · Electronics P0012 Engine warning light on with the vehicle running normally Fiat · Fuel injection P0096 Engine warning light on with the vehicle running normally Fiat · Fuel injection P0102 Engine warning light on with the vehicle running normally Fiat · Fuel injection P0132 Engine warning light on with both petrol and LPG Fiat · Fuel injection P0244 Loss of power with a ‘Have the engine checked’ message Fiat · Fuel injection P0300 Misfires with the engine warning light on Fiat · Fuel injection P0301 Misfires under acceleration Fiat · Fuel injection P0504 ESP, EBD, ABS and Hill Holder functions unavailable Fiat · Brakes P06DD Loss of power with a ‘Low oil pressure’ message Fiat · Fuel injection P1541 Loss of performance with no response from the accelerator pedal Fiat · Fuel injection P154A Engine cutting out while driving with an ‘Alternator fault’ message Fiat · Electronics P20EE Engine warning light on with the vehicle running normally Fiat · Exhaust emissions P2108 Engine warning light with intermittent loss of performance Fiat · Fuel injection P2299 Engine warning light on with the vehicle running normally Fiat · Electronics P242B Engine warning light on with the car running normally Fiat · Exhaust emissions P244A Loss of performance with engine warning light and Start&Stop fault Fiat · Exhaust emissions P24D1 Engine warning light on with the car running normally Fiat · Exhaust emissions P250A Generic warning light on with the vehicle running normally Fiat · Electronics U0431 ABS, ESP, airbag and MIL lights on with an erratic instrument cluster Fiat · Electronics U1700 The engine will not start and several electrical systems are unresponsive Fiat · Electronics U1726 Airbag warning light on and odometer flashing Fiat · Airbags U1733 Abnormal battery drain and odometer flashing Fiat · Electronics B10D7 Intermittent failure of the engine to start Ford · Electronics P0030 Oxygen sensor 1 heater circuit, incorrect operation Ford · Fuel injection P0232 Sudden stop while driving followed by a no-start condition Ford · Fuel injection P0234 Significantly reduced performance with the engine warning light on Ford · Fuel injection P0269 Misfires and a knocking noise from the engine with the fault and ESP lights on Ford · Fuel injection P0299 Engine fails to start with an ‘AdBlue system fault Repair’ message on the display Ford · Fuel injection P0340 Flashing glow plug light and sudden engine shutdown while driving Ford · Fuel injection P042F Severely limited power with the engine warning light on Ford · Fuel injection P053F Intermittent loss of power with the engine warning light on Ford · Fuel injection P0562 Intermittent failures to start and abnormal battery drain Ford · Electronics P0691 Radiator fan not running, air conditioning cannot be switched on and engine warning light on Ford · Engine cooling P1200 Hard starting with white smoke from the exhaust and a flashing glow plug light Ford · Fuel injection P2002 Diesel particulate filter underperforming Ford · Exhaust emissions P2263 Intermittent loss of power with the engine warning light on Ford · Fuel injection P24A4 Severe loss of performance with an ‘Engine fault’ message on the display Ford · Fuel injection 063815 Engine warning light and ‘have the engine checked’ message Iveco · Fuel injection P0299 Markedly poor performance with intermittent failures to start and the engine warning light on Jeep · Fuel injection P065A Neutral engaged while driving, engine and 4WD warning lights on Jeep · Electronics P0793 Jerky automatic transmission with reduced performance Mercedes · Transmission P0612 Rough running, poor performance and intermittent failures to start with the fault warning light on Opel · Fuel injection U2107 Display and instrument cluster switching off intermittently Opel · Electronics C1653 ABS, ESP, service and tyre pressure lights all on together Peugeot · Brakes P0003 Engine stopping suddenly and refusing to restart Peugeot · Fuel injection P0015 Occasional slight hesitation and the engine warning light coming on Peugeot · Fuel injection P0105 Rough running, blow-by from the engine and the cooling fan permanently at full speed Peugeot · Fuel injection P02ED Significantly reduced performance with the engine warning light on Peugeot · Fuel injection P0460 Engine warning light and ‘Engine fault’ message with a full tank Peugeot · Fuel injection P1382 Alternator not charging, with the red battery light and the general fault light on Peugeot · Fuel injection P1435 Poor performance with the service light on and an ‘Engine fault: have the vehicle repaired’ message Peugeot · Electronics P1445 Heavy white smoke from the exhaust with the engine warm, the vehicle otherwise running normally Peugeot · Fuel injection P1769 Transmission intermittently stuck in one gear with a warning to check the transmission Peugeot · Transmission P20F6 White smoke and a whitish deposit on the tailpipe, with the AdBlue, engine and service lights on Peugeot · Exhaust emissions U1218 After a flat battery: radio dead, engine fault message and the cooling fan running continuously Peugeot · Electronics P2185 Intermittent rough running with power loss, a flashing fault warning light and the glow plug light on steady Skoda · Fuel injection

Is the code you are looking for not in the list?

The public sheets are a selection. Inside Sema Repair there are over 65,000 case studies, tied to the vehicle in your workshop.

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