P1400

DPFE Sensor Low Voltage (Mazda)

P1400

DPFE Sensor Low Voltage (Ford)

P1401

DPFE Sensor High Voltage (Mazda)

P1401

DPFE Sensor High Voltage (Ford)

P1403

DPFE Hoses Reversed (Mazda)

P1403

No 5 Volts To EGR Sensor (Chrysler)

P1404

Exhaust Gas Recirculation (EGR) Valve Pintle Stuck Open

P1405

DPFE Upstream Hose Off Or Plugged (Mazda)

P1405

DPFE Upstream Hose Off Or Plugged (Ford)

P1406

DPFE Downstream Hose Off Or Plugged (Mazda)

P1406

DPFE Downstream Hose Off Or Plugged (Ford)

P1407

EGR No Flow Detected (Mazda)

P1408

EGR Out Of Self Test Range (Mazda)

P1408

EGR Out Of Self Test Range (Ford)

P1409

Electronic Vacuum Regulator Control Circuit Malfunction (Mazda)

P1409

EGR Vacuum Regulator Solenoid Circuit Malfunction (Ford)

P1411

Secondary Air Injection System Downstream Flow (Ford)

P1413

Secondary Air Injection System Monitor Circuit Low (Ford)

P1414

Secondary Air Injection System Monitor Circuit High (Ford)

P1432

THTRC Circuit Failure (Ford)

P1441

Evaporative System Flow During Non-Purge

P1443

Evaporative Emission Control System (Mazda)

P1443

Small Or No Purge Flow Condition (Ford)

P1444

Purge Flow Sensor Low Input (Mazda)

P1445

Purge Flow Sensor High Input (Mazda)

P1450

Unable To Bleed Up Fuel Tank Vacuum (Ford)

P1451

EVAP Control System Canister Vent Solenoid Circuit Malfunction (Ford)

P1457

Leak Detected In EVAP Control Sys.(EVAP Canister Sys.) (Acura)

P1460

WOT A/C Cutoff Circuit Malfunction (Mazda)

P1460

WOT A/C Cutoff Circuit Malfunction (Ford)

P1461

ACP Sensor High Voltage (Ford)

P1462

ACP Sensor Low Voltage (Ford)

P1463

ACP Sensor Insufficent Pressure Change (Ford)

P1464

A/C Demand Out Of Range (Ford)

P1469

Low A/C Cycling Period (Ford)

P1474

HCF Primary Circuit Failure (Ford)

P1474

LFC Primary Circuit Failure (Ford)

P1476

Too Little Secondary Air (Chrysler)

P1477

Too Much Secondary Air (Chrysler)

P1477

MFC Primary Circuit Failure (Ford)

P1478

Battery Temp Sensor Volts Out of Limit (Chrysler)

P1479

HFC Primary Circuit Failure (Ford)

P1479

Transmission Fan Relay Circuit (Chrysler)

P1480

PCV Solenoid Valve (Chrysler)

P1482

Catalyst Temperature Sensor Circuit Shorted Low (Chrysler)

P1483

Engine Cooling System Performance

P1483

Catalyst Temperature Sensor Circuit Shorted High (Chrysler)

P1484

Catalytic Converter overheat Detected (Chrysler)

P1485

Air Injection Solenoid Circuit (Chrysler)

P1486

Evap Leak Monitor Pinched Hose (Chrysler)

P1487

Hi Speed Rad Fan CTRL Relay Circuit (Chrysler)

P1488

Auxiliary 5 Volt Supply Output Too Low (Chrysler)

P1489

High Speed Fan CTRL Relay Circuit (Chrysler)

P1490

Low Speed Fan CTRL Relay Circuit (Chrysler)

P1491

Rad Fan Control Relay Circuit (Chrysler)

P1491

Malfunction In EGR System (Acura)

P1492

Ambient/Batt Temp Sen Volts Too High (Chrysler)

P1493

Ambient/Batt Temp Sen Volts Too Low (Chrysler)

P1494

Leak Detection Pump Switch or Mechanical Fault (Chrysler)

P1495

Leak Detection Pump Solenoid Circuit (Chrysler)

P1496

5 Volt Supply Output Too Low (Chrysler)

P1498

High speed Rad Fan Ground CTRL Rly Circuit (Chrysler)

P1498

Voltage Problem In EGR Valve Position Sensor Circuit (Acura)

P1229

Supercharger Intercooler Pump Not Working (Ford)

P1232

Low Speed Fuel Pump Primary Circuit Malfunction (Ford)

P1233

Fuel System Disabled Or Offline (Ford)

P1234

Fuel System Disabled Or Offline (Ford)

P1235

Fuel Pump Control Out Of Range (Ford)

P1236

Fuel Pump Control Out Of Range (Ford)

P1237

Fuel Pump Secondary Circuit Malfunction (Ford)

P1238

Fuel Pump Secondary Circuit Malfunction (Ford)

P1244

Generator Load Low (Ford)

P1245

Generator Load Input High (Ford)

P1246

Generator Load Input Failed (Ford)

P1258

Engine Metal Over Temperature Protection

P1259

VTEC System Malfunction (Acura)

P1260

Fuel Pump Speed Relay Control Circuit (GM)

P1260

Theft Detected – Engine Disabled (Mazda)

P1260

Theft Detected – Engine Disabled (Ford)

P1270

Vehicle Speed Limiter Reached (Mazda)

P1270

Vehicle Speed Limiter Reached (Ford)

P1281

Engine Is Cold Too Long (Chrysler)

P1282

Fuel Pump Relay Control Circuit(Chrysler)

P1285

Cylinder Head Over Temperature Sensed (Ford)

P1288

Intake Manifold Short Runner Solenoid Circuit (Chrysler)

P1290

CHT Sensor Out Of Range (Ford)

P1289

Manifold Tune Valve Solenoid Circuit (Chrysler)

P1289

CHT Sensor High Input (Ford)

P1290

CNG Fuel Pressure Too High (Chrysler)

P1290

CHT Sensor Low Input (Ford)

P1291

No Temp Rise Seen From Fuel Heaters (Chrysler)

P1292

CNG Pressure Sensor Voltage Too High (Chrysler)

P1293

CNG Pressure Sensor Voltage Too Low (Chrysler)

P1294

Target Idle Not Reached (Chrysler)

P1295

No 5 Volts To TP Sensor (Chrysler)

P1296

No 5 Volts To MAP Sensor (Chrysler)

P1297

No Change in MAB From Start To Run (Chrysler)

P1297

Low Voltage ELD Circuit (Acura)

P1298

High Voltage In ELD Circuit (Acura)

P1298

Lean Operation At wide Open Throttle (Chrysler)

P1299

Vacuum Leak Found (IAC Fully Seated)(Chrysler)

P1299

Cylinder Head Over Temperature Protection Active (Ford)

Downstream O2 Sensors Swapped Bank To Bank

Description:

How does a P0041 code trigger the check engine light? This code will trigger the light to come on under the following condition:

The Heated Oxygen Sensor Monitor, a strategy built into the computer, determines if the Heated Oxygen Sensor (HO2S) signal response for a change in fuel trim corresponds to the correct engine bank. If a response from the Oxygen Sensor being tested is not indicated, a trouble code will be set and the MIL (Malfunction Indicator Lamp) will illuminate.

Possible Causes:

Crossed Heated Oxygen Sensor harness connectors
Wiring swapped from one Oxygen Sensor connector to the other
Wiring changed at the computer connection or in the related harness

Diagnostic Help:

This check engine light code is caused by swapped wiring or connectors of the downstream Heated Oxygen Sensors. This would have to be the result of a previous repair, so be sure to check the vehicle history. You may also use the “Get Help” link if you need specifications or have any other related questions. Remember to refer to an appropriate manual for specific instructions.

Downstream O2 Sensors Swapped Bank To Bank

Description:

How does a P0041 code trigger the check engine light? This code will trigger the light to come on under the following condition:

The Heated Oxygen Sensor Monitor, a strategy built into the computer, determines if the Heated Oxygen Sensor (HO2S) signal response for a change in fuel trim corresponds to the correct engine bank. If a response from the Oxygen Sensor being tested is not indicated, a trouble code will be set and the MIL (Malfunction Indicator Lamp) will illuminate.

Possible Causes:

Crossed Heated Oxygen Sensor harness connectors
Wiring swapped from one Oxygen Sensor connector to the other
Wiring changed at the computer connection or in the related harness

Diagnostic Help:

This check engine light code is caused by swapped wiring or connectors of the downstream Heated Oxygen Sensors. This would have to be the result of a previous repair, so be sure to check the vehicle history. You may also use the “Get Help” link if you need specifications or have any other related questions. Remember to refer to an appropriate manual for specific instructions.

Upstream O2 Sensors Swapped Bank To Bank

Description:

How does a P0040 code trigger the check engine light? This code will trigger the light to come on under the following condition:

The Heated Oxygen Sensor Monitor, a strategy built into the computer, determines if the Heated Oxygen Sensor (HO2S) signal response for a change in fuel trim corresponds to the correct engine bank. If a response from the Oxygen Sensor being tested is not indicated, a trouble code will be set and the MIL (Malfunction Indicator Lamp) will illuminate.

Possible Causes:

Crossed Heated Oxygen Sensor harness connectors
Wiring swapped from one Oxygen Sensor connector to the other
Wiring changed at the computer connection or in the related harness

Diagnostic Help:

This check engine light code is caused by swapped wiring or connectors of the upstream Heated Oxygen Sensors. This would have to be the result of a previous repair, so be sure to check the vehicle history. You may also use the “Get Help” link if you need specifications or have any other related questions. Remember to refer to an appropriate manual for specific instructions.

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