Fault codes: symptoms, causes and vehicles affected

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