Ford Error Codes Download

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P090C Ford Auto Trouble Code. P090C Ford Auto Trouble Code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

Welcome to the Ford Check Engine Light codes page. Below you will find the most complete list of Ford trouble codes available. The code definitions are a good starting point when determining the cause of the service engine light but where do you go from there? We have a large number of resources to help you repair the problem. Here is how we suggest you proceed. Look up your code definition. This tells you where to start testing. If you are unsure of any abbreviations, check out the acronym list by clicking on the link at the left.

  1. OBD codes are accessed by plugging a code reader into the vehicle's OBD port. These codes provide a mechanic with information about the system and the conditions under which the issue was first identified. However, they can't provide a clear-cut solution to the actual cause of the problem - only clues for where to look.
  2. Accessing Ford OBD1 Trouble Codes Using Analog Voltmeter. EEC-V, DI 7.3L Turbo Diesel & Villager. Connect analog voltmeter to data link connector located in engine compartment.
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  4. OBDII Ford Code Definitions. Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here.
  5. OBDII/EOBD diagnostics trouble codes definition. If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes.These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX).
  6. Be entered each time you download, so do not forget your password. Write down or copy and paste displayed codes and contact the Ford. ProCal 3 Instructions NO PART OF THIS DOCUMENT MAY BE REPRODUCED WITHOUT PRIOR AGREEMENT AND WRITTEN PERMISSION OF FORD PERFORMANCE PARTS. ProCal 3 Instructions.

Next, read our article Automotive Circuit Testing 101, and if there is an article related to the system you are testing, such as Oxygen Sensors or EGR concerns, read these as well. They will provide valuable info! If there is a link to a specific diagnosis strategy for the code then follow that and start testing. If there is no procedure for your manufacturer specific code, then I suggest referring to a similar generic OBD II code (these are listed numerically by system type) to get a good idea of what to look for. If at this point you still need assistance use the 'Get Help' link and let us know how we can help. We can provide information on component location, specifications, circuit color/location and more. We do ask that you please read the info available on the site first so that we can help reduce repeat questions. So please read our Disclaimer and when you're ready jump in!

Also, we value your feedback and like to hear stories of unusual fixes or concerns you may have run into with your Check Engine Light, so feel free to share your experiences by using the 'Contact Us' link. Let's go!

We do our best to update these Ford check engine light codes as frequently as possible. If you find one missing let us know and we we'll add it immediately! Please use the form on our Contact Page to get in touch with us. We certainly understand how frustrating it can be to look for a code definition and have it not online when you need it. And lets face it, if the service engine light is on then you need it now! It's easiest to use the 'Find On This Page' feature of your browser's 'Edit' menu to find codes on this page as the list is quite long. These are listed in numerical order for easy searching.

When retrieving Ford check engine light codes with an OBD II scan tool, proceed as follows:
1. Connect scan tool to the 16-pin data link connector (DLC) located underneath the steering column. The connector may have a removable cover.
2. Turn the ignition on.
3. Follow scan tool manufacturer's operating instructions to access the Diagnostic Trouble Codes (DTC's).

Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Ford diagnostic trouble codes.

Manufacturer Specific Codes

P1000 OBD System Readiness Test Not Complete

P1001 KOER Test Cannot Be Completed

P1039 Vehicle Speed Signal Missing or Improper

P1051 Brake Switch Signal Missing or Improper

P1100 Mass Air Flow Sensor Intermittent

P1101 Mass Air Flow Sensor Out of Self-Test Range

P1105 Dual Alternator Upper Fault

P1106 Dual Alternator Lower Fault/ Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage

P1107 Dual Alternator Lower Circuit Malfunction/ Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage

P1108 Dual Alternator Battery Lamp Circuit Malfunction

P1109 IAT - B Sensor Intermittent

P1111 System Pass

P1112 Intake Air Temperature Sensor Intermittent

P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage/IAT - B Circuit Low Input

P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage/IAT - B Circuit High Input

P1116 Engine Coolant Temperature Sensor is Out of Self-Test Range

P1117 Engine Coolant Temperature Sensor Intermittent

P1118 Manifold Absolute Temperature Circuit Low Input

P1119 Manifold Absolute Temperature Circuit High Input

P1120 Throttle Position Sensor Out of Range

P1121 Throttle Position Sensor Inconsistent with Mass Air Flow Sensor

P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage

P1123 Throttle Position Sensor In Range But Higher Than Expected

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P1124 Throttle Position Sensor Out of Self-Test Range

P1125 Throttle Position Sensor Intermittent

P1127 Exhaust Not Warm Enough - Downstream O2 Sensor Not Tested - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1128 Upstream Heated Oxygen Sensor Signals Reversed - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1129 Downstream Heated Oxygen Sensor Signals Reversed - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1130 Lack of Upstream Heated Oxygen Sensor Switch - Adaptive Fuel Limit - Bank 1 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1131 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1132 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank 1 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1133 Bank 1 Fuel Control Shifted Lean - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1134 Bank 1 Fuel Control Shifted Rich - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1135 Pedal Position Sensor A Circuit Intermittent

P1137 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 1 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1138 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank 1 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1139 Water In Fuel Indicator Circuit Malfunction

P1140 Water In Fuel Condition

P1141 Fuel Restriction Indicator Circuit Malfunction

P1142 Fuel Restriction Condition

P1150 Lack of Upstream Heated Oxygen Sensor Switch - Adaptive Fuel Limit - Bank 2 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1151 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 2 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1152 Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank 2 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1153 Bank 2 Fuel Control Shifted Lean - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1154 Bank 2 Fuel Control Shifted Rich - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1155 Alternative Fuel Controller

P1157 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Lean - Bank 2 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1158 Lack of Downstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank 2 - Read Our Article on Oxygen Sensor Codes For Help With This Ford Check Engine Light Code

P1168 Fuel Rail Sensor In-Range Low Failure

P1169 Fuel Rail Sensor In-Range High Failure

P1170 ESO - Engine Shut Off Solenoid Fault

P1171 Rotor Sensor Fault

P1172 Rotor Control Fault

P1173 Rotor Calibration Fault

P1174 Cam Sensor Fault

P1175 Cam Control Fault

P1176 Cam Calibration Fault

P1177 Synchronization Fault

P1180 Fuel Delivery System Malfunction - Low

P1181 Fuel Delivery System Malfunction - High

P1183 Engine Oil Temperature Circuit Malfunction

P1184 Engine Oil Temperature Out Of Self Test Range

P1185 FTS High - Fuel Pump Temperature Sensor High

P1186 FTS Low - Fuel Pump Temperature Sensor Low

P1187 Variant Selection

P1188 Calibration Memory Fault

P1189 Pump Speed Signal Fault

P1190 Calibration Resistor Out Of Range

P1191 Key Line Voltage

P1192 Voltage External

P1193 EGR Drive Overcurrent

P1194 ECU A/D Converter

P1195 SCP HBCC Failed To Initialize

P1196 Key Off Voltage High

P1197 Key Off Voltage Low

P1198 Pump Rotor Control Underfueling

P1209 Injector Control Pressure System Fault

P1210 Injector Control Pressure Above Expected Level

P1211 Injector Control Pressure Sensor Above / Below Desired

P1212 Injector Control Pressure Not Detected During Crank

P1213 Start Injector Circuit Malfunction

P1214 Pedal Position Sensor B Circuit Intermittent

P1215 Pedal Position Sensor C Circuit Low Input

P1216 Pedal Position Sensor C Circuit High Input

P1217 Pedal Position Sensor C Circuit Intermittent

P1218 CID High

P1219 CID Low

P1220 Series Throttle Control Fault

P1221 Traction Control System Malfunction

P1222 Traction Control Output Circuit Malfunction

P1223 Pedal Demand Sensor B Circuit High Input

P1224 Throttle Position Sensor B Out of Self-Test Range

P1227 Wastegate Failed Closed (Over Pressure)

P1228 Wastegate Failed Open (Under Pressure)

P1229 Intercooler Pump Driver Fault

P1230 Open Power to Fuel Pump Circuit

P1231 High Speed Fuel Pump Relay Activated

P1232 Low Speed Fuel Pump Primary Circuit Failure

P1233 Fuel Pump Driver Module Off-Line

P1234 Fuel Pump Driver Module Off-Line

P1235 Fuel Pump Control Out of Range

P1236 Fuel Pump Control Out of Range

P1237 Fuel Pump Secondary Circuit Fault

P1238 Fuel Pump Secondary Circuit Fault

P1239 Speed Fuel Pump Positive Feed Fault

P1243 Second Fuel Pump Faulty or Ground Fault

P1244 Alternator Load Input Failed High

P1245 Alternator Load Input Failed Low

P1246 Alternator Load Input Failed

P1247 Turbo Boost Pressure Low

P1248 Turbo Boost Pressure Not Detected

P1249 Wastegate Control Valve Performance

P1250 Lack of Power to FPRC Solenoid

P1252 Pedal Correlation PDS1 and LPDS High

P1253 Pedal Correlation PDS1 and LPDS Low

P1254 Pedal Correlation PDS2 and LPDS High

P1255 Pedal Correlation PDS2 and LPDS Low

P1256 Pedal Correlation PDS1 and HPDS

P1257 Pedal Correlation PDS2 and HPDS

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P1258 Pedal Correlation PDS1 and PDS2

P1260 Theft Detected - Engine Disabled - Related Information

P1261 Cylinder #1 High To Low Side Short

P1262 Cylinder #2 High To Low Side Short

P1263 Cylinder #3 High To Low Side Short

P1264 Cylinder #4 High To Low Side Short

P1265 Cylinder #5 High To Low Side Short

P1266 Cylinder #6 High To Low Side Short

P1267 Cylinder #7 High To Low Side Short

P1268 Cylinder #8 High To Low Side Short

P1270 Engine RPM or Vehicle Speed Limiter Reached

P1270 Engine RPM Or Speed Limiter Reached

P1271 Cylinder #1 High To Low Side Open

P1272 Cylinder #2 High To Low Side Open

P1273 Cylinder #3 High To Low Side Open

P1274 Cylinder #4 High To Low Side Open

P1275 Cylinder #5 High To Low Side Open

P1276 Cylinder #6 High To Low Side Open

P1277 Cylinder #7 High To Low Side Open

P1278 Cylinder #8 High To Low Side Open

P1280 Injection Control Pressure Out Of Range Low

P1281 Injection Control Pressure Out Of Range High

P1282 Excessive Injection Control Pressure

P1283 IPR Circuit Failure

P1284 Aborted KOER - ICP Failure

P1285 Cylinder head over temp sensed

P1286 Fuel Pulse In Range But Lower Than Expected

P1287 Fuel Pulse In Range But Higher Than Expected

P1288 Cylinder Head Temperature Sensor Out of Self-Test Range

P1289 Cylinder Head Temperature Sensor Signal Greater Than Self-Test Range

P1290 Cylinder Head Temperature Sensor Signal Less Than Self-Test Range

P1291 Injector High Side Short To GND Or VBATT - Bank 1

P1292 Injector High Side Short To GND Or VBATT - Bank 2

P1293 Injector High Side Open - Bank 1

P1294 Injector High Side Open - Bank 2/Target idle not reached

P1295 Multi-faults - Bank 1 - With Low Side Shorts

P1296 Multi-faults - Bank 2 - With Low Side Shorts

P1297 Injector High Sides Shorted Together

P1298 IDM Failure

P1299 Cylinder Head Temperature Sensor Detected Engine Overheating Condition

P1300 Boost Calibration Fault

P1301 Boost Calibration High

P1302 Boost Calibration Low

P1303 EGR Calibration Fault - Read Our Article on EGR Valve Codes For Help With This Ford Check Engine Light Code

P1304 EGR Calibration High

P1305 EGR Calibration Low

P1306 Kickdown Relay Pull - In Circuit Fault

P1307 Kickdown Relay Hold Circuit Fault

P1308 A/C Clutch Circuit Fault

P1309 Misfire Detection Monitor Not enabled

P1316 Injector Circuit / IDM Codes Detected

P1317 Injector Circuit / IDM Codes Not Updated

P1340 Camshaft Position Sensor B Circuit Malfunction

P1351 Ignition Diagnostic Monitor Circuit Input Fault

P1352 Ignition Coil A - Primary Circuit Fault

P1353 Ignition Coil B - Primary Circuit Fault

P1354 Ignition Coil C - Primary Circuit Fault

P1355 Ignition Coil D - Primary Circuit Fault

P1356 Loss of Ignition Diagnostic Module Input to PCM

P1357 Ignition Diagnostic Monitor Pulsewidth Not Defined

P1358 Ignition Diagnostic Monitor Signal Out of Self-Test Range

P1359 Spark Output Circuit Fault

P1360 Ignition Coil A Secondary Circuit Malfunction

P1361 Ignition Control (IC) Circuit Low Voltage

P1362 Ignition Coil C Secondary Circuit Malfunction

P1363 Ignition Coil D Secondary Circuit Malfunction

P1364 Ignition Coil Primary Circuit Fault

P1365 Ignition Coil Secondary Circuit Failure

P1369 Engine Temperature Light Monitor Failure

P1380 VCT Solenoid Valve Circuit Short or Open

P1381 Cam Timing Advance is excessive - Related Information

P1383 Cam Timing Advance is excessive

P1385 Variable Cam Timing Solenoid B Malfunction

P1386 Variable Cam Timing Overadvanced (Bank #2)

P1388 Variable Cam Timing Overretarded (Bank #2)

P1389 Glow Plug Circuit High Side Low Input

P1390 Octane Adjust Out of Self-Test Range

P1391 Glow Plug Circuit Low Input (Bank #1)

P1392 Glow Plug Circuit High Input (Bank #1)

P1393 Glow Plug Circuit Low Input (Bank #2)

P1394 Glow Plug Circuit High Input (Bank #2)

P1395 Glow Plug Monitor Fault (Bank #1)

P1396 Glow Plug Monitor Fault (Bank #2)

P1397 System Voltage Out Of Self Test Range

P1399 Glow Plug Circuit High Side, High Input

P1400 Differential Pressure Feedback Electronic Sensor Circuit Low Voltage - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1401 Differential Pressure Feedback Electronic Sensor Circuit High Voltage - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1402 EGR Metering Orifice Restricted - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1403 Differential Pressure Feedback Electronic Sensor Hoses Reversed - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1404 IAT - B Circuit Malfunction/ Exhaust Gas Recirculation Closed Position Performance

P1405 Differential Pressure Feedback Electronic Sensor Circuit Upstream Hose - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1406 Differential Pressure Feedback Electronic Sensor Circuit Downstream Hose - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1407 EGR No Flow Detected - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1408 EGR Flow Out of Self-Test Range - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1409 EGR Vacuum Regulator Circuit malfunction - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1409 Electronic Vacuum Regulator Control Circuit Fault - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1410 EGR Barometric Pressure Sensor VREF Voltage - Read Our Article on EGR System Diagnosis For Help With This Ford Check Engine Light Code

P1411 Secondary Air is Not being diverted

P1413 Secondary Air Injection System Monitor Circuit Low Voltage

P1414 Secondary Air Injection System Monitor Circuit High Voltage

P1431 Misfire Monitor Disabled, Unable to Learn Trigger Wheel Profile

P1442 Secondary Air Injection System Monitor Circuit High Voltage

P1443 Evaporative Emission Control System - Vacuum System - Purge Control Solenoid or Purge Control Valve Fault

P1444 Purge Flow Sensor Circuit Input Low

P1445 Purge Flow Sensor Circuit Input High

P1450 Inability of Evaporative Emission Control System to Bleed Fuel Tank

P1451 EVAP Control System Canister Vent Solenoid Circuit Malfunction

P1452 Inability of Evaporative Emission Control System to Bleed Fuel Tank

P1455 Substantial Leak or Blockage in Evaporative Emission Control System

P1457 Unable To Pull Vacuum In Tank

P1460 Wide Open Throttle Air Conditioning Cutoff Circuit malfunction

P1461 Air Conditioning Pressure Sensor Circuit Low Input

P1462 Air Conditioning Pressure Sensor Circuit high Input

P1463 Air Conditioning Pressure Sensor Insufficient Pressure change

P1464 ACCS to PCM High During Self-Test

P1465 A/C Relay Circuit Malfunction

P1466 A/C Refrigerant Temperature Sensor/Circuit Malfunction

P1469 Low Air Conditioning Cycling Period

P1473 Fan Secondary High with Fans Off

P1474 Low Fan Control Primary Circuit

P1479 High Fan Control Primary Circuit

P1480 Fan Secondary Low with Low Fans On

P1481 Fan Secondary Low with High Fans On

P1482 SCP

P1483 Power to Cooling Fan Exceeded Normal Draw

P1484 Variable Load Control Module Pin 1 Open

P1485 EGRV Circuit Malfunction

P1500 Vehicle Speed Sensor Intermittent

P1501 Programmable Speedometer & Odometer Module/Vehicle Speed Sensor Intermittent Circuit-failure

P1502 Invalid or Missing Vehicle Speed Message or Brake Data

P1504 Intake Air Control Circuit malfunction

P1505 Idle Air Control System at Adaptive Clip

P1506 Idle Air Control Over Speed Error

P1507 Idle Air Control Under Speed Error

P1512 Intake Manifold Runner Control Stuck Closed

P1513 Intake Manifold Runner Control Stuck Closed

P1516 Intake Manifold Runner Control Input Error

P1517 Intake Manifold Runner Control Input Error

P1518 Intake Manifold Runner Control Fault - Stuck Open

P1519 Intake Manifold Runner Control Stuck Open

P1520 Intake Manifold Runner Control Circuit Fault

P1519 Intake Manifold Runner Control Fault - Stuck Closed

P1520 Intake Manifold Runner Control Fault

P1530 Open or Short to A/C Compressor Clutch Circuit

P1531 Invalid Test - Accelerator Pedal Movement

P1532 IMCC Circuit Malfunction, Bank B

P1533 AAI Circuit Malfunction

P1534 Inertia Switch Activated

P1536 Parking Brake Switch Circuit Failure

P1537 Intake Manifold Runner Control Stuck Open

P1538 Intake Manifold Runner Control Stuck Open

P1539 Power to A/C Compressor Clutch Circuit Exceeded Normal Current Draw

P1549 Intake Manifold Temperature Valve Vacuum Actuator Connection

P1550 Power Steering Pressure Sensor Out of Self-Test Range

P1565 Speed Control Command Switch Out of Range High

P1566 Speed Control Command Switch Out of Range Low

P1567 Speed Control Output Circuit Continuity

P1568 Speed Control Unable to Hold Speed

P1572 Brake Pedal Switch Circuit Malfunction

P1573 Throttle Position Not Available

P1574 Throttle Position Sensor Disagreement btwn Sensors

P1575 Pedal Position Out of Self Test Range

P1576 Pedal Position Not Available

P1577 Pedal Position Sensor Disagreement btwn Sensors

P1578 ETC Power Less Than Demand

P1579 ETC In Power Limiting Mode

P1580 Electronic Throttle Monitor PCM Override

P1581 Electronic Throttle Monitor Malfunction

P1582 Electronic Throttle Monitor Data Available

P1583 Electronic Throttle Monitor Cruise Disable

P1584 Throttle Control Detected ETB Malfunction

P1585 Throttle Control Unit Malfunction

P1586 Throttle Control Unit Throttle Position Malfunction

P1587 Throttle Control Unit Modulated Command Malfunction

P1588 Throttle Control Unit Detected Loss of Return Spring

P1589 Throttle Control Unit Unable To Control Desired Throttle Angle

P1600 Loss of KAM Power - Open Circuit

P1605 PCM Keep Alive Memory Test Error

P1625 Voltage to Vehicle Load Control Module Fan Circuit Not detected

P1626 Voltage to Vehicle Load Control Module Circuit Not detected

P1634 Data Output Link Circuit Failure

P1635 Tire / Axle Ratio Out of Acceptable Range

P1636 Inductive Signature Chip Communication Error

P1639 Vehicle ID Block Corrupted or Not Programmed

P1640 Powertrain DTCs Available in Another Module

P1641 Fuel Pump Primary Circuit Failure

P1642 Fuel Pump Monitor Circuit High Input

P1643 Fuel Pump Monitor Circuit Low Input

P1644 Fuel Pump Speed Control Circuit Malfunction

P1650 Power Steering Pressure Switch Out of Self-Test Range

P1651 Power Steering Pressure Switch Input Fault

P1656 CAN Link PCM - PCM Circuit - Network

P1657 CAN Link Chip Malfunction

P1660 Output Circuit Check Signal High

P1661 Output Circuit Check Signal Low

P1662 IDM_EN Circuit Failure

P1663 Fuel Demand Command Signal Circuit Malfunction

P1667 CI Circuit Malfunction

P1668 PCM - IDM Communications Error

P1670 Electronic Feedback Signal Not Detected

P1690 Wastegate Solenoid Circuit Malfunction

P1700 Transmission system problems

P1701 Reverse Engagement Error

P1702 Transmission system problems

P1703 Brake On/Off Switch Out of Self-Test Range

P1704 Transmission system problems

P1705 Manual Lever Position Sensor Out of Self-Test Range

P1706 High Vehicle Speed Observed in Park

P1707 Transfer Case Neutral Indicator Hard Fault Present

P1709 Park or Neutral Position Switch Out of Self-Test Range

P1710 Transmission system problems

P1711 Transmission Fluid Temperature Sensor Out of Self-Test Range

P1712 Trans Torque Reduction Request Signal Malfunction

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P1713 TFT Sensor In Range Failure Low Value

P1714 SSA Inductive Signature Malfunction

P1715 SSB Inductive Signature Malfunction

P1716 SSC Inductive Signature Malfunction

P1717 SSD Inductive Signature Malfunction

P1718 TFT Sensor In Range Failure High

P1720 Vehicle Speed (Meter) Circuit Malfunction

P1721 Gear 1 Incorrect Ratio

P1722 Gear 2 Incorrect Ratio

P1723 Gear 3 incorrect Ratio

P1724 Gear 4 Incorrect Ratio

P1725 Insufficient Engine Speed Increase During Self Test

P1726 Insufficient Engine Speed Decrease During Self Test

P1727 Coast Clutch Solenoid Inductive Signature Malfunction

P1728 Transmission Slip Error

P1729 4x4 Low Switch Error

P1731 1-2 Shift Malfunction

P1732 2-3 Shift Malfunction

P1733 3-4 Shift Malfunction

P1740 Transmission system problems

P1741 Torque Converter Clutch Control Error

P1742 Torque Converter Clutch Solenoid Faulty

P1743 Torque Converter Clutch Solenoid Faulty

P1744 Torque Converter Clutch System Stuck in Off Position

P1745 Transmission system problems

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P1746 Electronic Pressure Control Solenoid A - Open Circuit

P1747 Electronic Pressure Control Solenoid A- Short Circuit

P1748 EPC Malfunction

P1749 Electronic Pressure Control Solenoid Failed Low

P1751 Shift Solenoid A Performance

P1754 Coast Clutch Solenoid Circuit malfunction

P1756 Shift Solenoid B Performance

P1760 Transmission system problems

P1761 Shift Solenoid C Performance

P1762 Overdrive Band Failed Off

P1766 Shift Solenoid D Performance

P1767 Torque Converter Clutch Circuit Malfunction

P1768 Performance / Normal / Winter Mode Input Malfunction

P1770 Clutch Solenoid Circuit Malfunction

P1779 Transmission Control Indicator Lamp Circuit Malfunction

P1780 Transmission Control Switch Circuit is Out of Self-Test Range

P1781 4x4 Low Switch is Out of Self-Test Range

P1782 P/ES Circuit Out Of Self Test Range

P1783 Transmission Over-Temperature Condition

P1784 Transmission Mechanical Failure - First And Reverse

P1785 Transmission Mechanical Failure - First And Second

P1786 3-2 Downshift Error

P1787 2-1 Downshift Error

P1788 Pressure Control Solenoid 'B' Open Circuit

P1789 Pressure Control Solenoid 'B' Short Circuit

P1795 Idle Switch Circuit Malfunction

P1804 Transmission 4-Wheel Drive High Indicator Circuit Failure

P1806 Transmission 4-Wheel Drive High Indicator Short Circuit To Battery

P1808 Transmission 4-Wheel Drive Low Indicator Circuit Failure

P1810 TFP Valve Position Switch Circuit/ Transmission 4-Wheel Drive Low Indicator Short Circuit To Battery

P1812 Transmission 4-Wheel Drive Mode Select Circuit Failure

P1815 Transmission 4-Wheel Drive Mode Select Short Circuit To Ground

P1819 Transmission Neutral Safety Switch Short Circuit To Ground

P1820 Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure

P1822 Transmission Transfer Case Clockwise Shift Relay Coil Short Circuit To Battery

P1824 Transmission 4-Wheel Drive Clutch Relay Circuit Failure

P1826 Transmission 4-Wheel Drive Low Clutch Relay Circuit To Battery

P1828 Transmission Transfer Case Counter Clockwise Shift Relay Coil Circuit Failure

P1830 Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery

P1832 Transmission Transfer Case Differential Lock-Up Solenoid Circuit Failure

P1834 Transmission Transfer Case Differential Lock-Up Solenoid Short Circuit To Battery

P1838 Transmission Transfer Case Shift Motor Circuit Failure

P1846 Transmission Transfer Case Contact Plate 'A' Circuit Failure

P1850 Transmission Transfer Case Contact Plate 'B' Circuit Failure

P1854 Transmission Transfer Case Contact Plate 'C' Circuit Failure

P1858 Transmission Transfer Case Contact Plate 'D' Circuit Failure

P1866 Transmission Transfer Case System Concern - Servicing Required

P1867 Transmission Transfer Case Contact Plate General Circuit Failure

P1876 Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Failure

P1877 Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short To Battery

P1881 Engine Coolant Level Switch Circuit Failure, GEM

P1882 Engine Coolant Level Switch Circuit Short to Ground

P1883 Engine Coolant Level Switch Circuit Failure, GEM

P1884 Engine Coolant Level Lamp Circuit Short to Ground

P1891 Transmission Transfer Case Contact Plate Ground Return Open Circuit

P1900 Output Shaft Speed (OSS) Circuit Intermittent Malfunction

P1901 Turbine Shaft Speed (TSS) Circuit Intermittent Malfunction

P1902 Kickdown Solenoid Relay Control Circuit

P1903 Kickdown Solenoid Circuit Low Voltage

P1904 Kickdown Solenoid Circuit High Voltage

Engine-CodesOBDII Code List P0171 FORD
Repair Difficulty Level: 3/3

P0171 FORD Possible Causes

  • Intake air leaks
  • Faulty front heated oxygen sensor
  • Ignition misfiring
  • Faulty fuel injectors
  • Exhaust gas leaks
  • Incorrect fuel pressure
  • Lack of fuel
  • Faulty Mass Air Flow (MAF) sensor
  • Incorrect Positive Crankcase Ventilation (PCV) hose connection

First diagnose P0171 FORD code

    Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

P0171 FORD Tech Notes

If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. If the problem persistss the front oxygen (O2) sensor may need to be replaced.
It's a very common problem for the Ford Windstar. Link to a website with information on how to repair: 1999-2003 Fords Windstar Code P0171
2004 FORD F150 P0171, P0174, P0301, Misfire and Lean Condition

Microsoft Download Error Codes



User Submitted Video

Cost of diagnosing the P0171 FORD code

    Labor: 1.0

    The cost of diagnosing the P0171 FORD code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

When is the P0171 FORD code detected?

- Fuel injection system does not operate properly.
- The amount of mixture ratio compensation is too small. (The mixture ratio is too lean.)

P0171 FORD Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Excessive Fuel Consumption

P0171 FORD Meaning

With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The Engine Control Module (ECM) calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.

In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the Malfunction Indicator Light (MIL) (2 trip detection logic).

P0171 FORD More Information

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Ford Error Code Po171

P0171 FORD Information for specific Ford models