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Ford Flex Fault Codes

You can find common Ford Flex fault codes on this page that when clicked take you to a detailed description.

You can also type in the fault code you are getting below to find a more detailed description.

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Ford Flex Recalls

When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.

You can check to see if your Ford Flex has any recall notices on our sister site AutoRecalls.co, sorted by model year.

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Common Flex Fault Codes

These are the most common Flex fault codes that people are searching for.

Error Icon P0500

Vehicle Speed Sensor Malfunction

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Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Error Icon P1450

Sec.Air Inj.Sys.Circ Short to B+

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Error Icon P0345

Camshaft Position Sensor A Circuit (Bank 2)

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Error Icon B1450

Wiper Wash/Delay Switch Circuit Failure

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Severity Icon 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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Severity Icon 6/10

Error Icon P0174

System Too Lean (Bank 2)

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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Severity Icon 10/10

Error Icon P2112

Throttle Actuator Control System Stuck Closed

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Severity Icon 7/10

Error Icon P0193

Fuel Rail Pressure Sensor Circuit High Input

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Error Icon B2139

Data Mismatch (receive data does not match what was expected)

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Error Icon B1207

EIC Switch-1 Assembly Circuit Short To Battery

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Severity Icon 8/10

Error Icon B1342

ECU Is Defective

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Severity Icon 2/10

Error Icon B1352

Ignition Key-In Circuit Failure

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Error Icon C1288

Pressure Transducer Main / Primary Input Circuit Failure

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Error Icon C1095

ABS Hydraulic Pump Motor Circuit Failure

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Error Icon P2463

Diesel Particulate Filter Restriction - Soot Accumulation

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Error Icon P2002

Diesel Particulate Filter Efficiency Below Threshold Bank 1

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Error Icon P2263

Turbo/Supercharger Boost System Performance

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Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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Error Icon P0108

Manifold Absolute Pressure/Barometric Pressure Circuit High Input

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Severity Icon 8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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Severity Icon 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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Severity Icon 4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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Severity Icon 9/10

Error Icon P0012

Intake Camshaft Position Timing - Over-Retarded (Bank 1)

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Severity Icon 8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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Severity Icon 7/10

Error Icon P0151

O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)

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Error Icon P1443

EGR Valve Position

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Severity Icon 9/10

Error Icon P0299

Turbo / Super Charger Underboost

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Error Icon U0140

Lost Communication With Body Control Module

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Error Icon U1900

CAN Communication Bus Fault

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Error Icon U0415

Invalid Data Received – Anti-Lock Brake System (ABS) Control Module

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Error Icon U0401

Invalid Data Received From ECM/PCM

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Severity Icon 9/10

Error Icon U0001

High Speed CAN Communication Bus

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Severity Icon 7/10

Error Icon U0155

Lost Communication With Instrument Panel Cluster (IPC) Control Module

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Severity Icon 9/10

Error Icon U0100

Lost Communication With ECM/PCM "A"

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Error Icon U0101

Lost Communication with TCM

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Severity Icon 8/10

Error Icon U0106

Lost Communication With Glow Plug Control Module

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Error Icon U3000

Control Module

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Severity Icon 9/10

Error Icon U0073

Control Module Communication Bus "A" Off

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Severity Icon 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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Error Icon P0470

Exhaust Pressure Sensor Malfunction

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Error Icon P1000

System readiness test not complete

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Error Icon P1299

Cylinder Head Temperature Sensor Detected Engine Overheating Condition

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Error Icon P1131

Bank 2-Sensor 1 Internal

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Error Icon P1151

Bank 1, Long Term

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Error Icon P1401

EGR Valve Circ Short

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Error Icon P1451

Sec.Air Inj.Sys.Circ

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Error Icon P1263

Cylinder #3 High To Low Side Short

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Error Icon P1261

Cylinder #1 High To Low Side Short

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Error Icon P1262

Cylinder #2 High To Low Side Short

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Error Icon P1260

Theft Detected - Engine Disabled

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Error Icon P1264

Cylinder #4 High To Low Side Short

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Error Icon P1549

Boost Pressure Contr.Valve

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Error Icon P1622

Engine coolant temperature

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Error Icon P1103

O2 Sensor Heating Circ. Bank 1-Sensor 1 Output too Low

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Error Icon P1335

Engine Torque Monitoring 2 Control Limint Exceeded

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Error Icon P1632

Accelera.Pedal Pos.Sensor

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Severity Icon 7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 9/10

Error Icon P0011

Intake Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 8/10

Error Icon P0014

Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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Severity Icon 4/10

Error Icon P0036

Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2

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Severity Icon 4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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Severity Icon 8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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Severity Icon 6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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Severity Icon 7/10

Error Icon P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

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Severity Icon 6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Severity Icon 4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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Severity Icon 5/10

Error Icon P0172

System Too Rich (Bank 1)

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  • Manufacturer: Ford

About the Flex