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)
P1100
MAF Intermittant (Mazda)
P1101
MAF Out Of Range (Mazda)
P1106
Manifold Absolute Pressure (MAP) sensor circuit intermittent high voltage
P1107
Manifold Absolute Pressure (MAP) sensor circuit intermittent low voltage
P1108
BARO to MAP signal circuit comparison too high
P1111
Intake Air Temperature (IAT) sensor intermittent high voltage
P1112
Intake Air Temperature (IAT) sensor intermittent low voltage
P1114
Engine Coolant Temperature (ECT) sensor circuit intermittent low voltage
P1115
Engine Coolant Temperature (ECT) sensor circuit intermittent high voltage
P1115
Intake Air Temperature 2 Circuit High Input (Ford)
P1116
ECT Sensor Out Of Range (Mazda)
P1116
ECT Sensor Out Of Range (Ford)
P1117
ECT Intermittent (Mazda)
P1117
ECT Intermittent (Ford)
P1120
TPS Out Of Range Low (Mazda)
P1120
TPS Out Of Range Low (Ford)
P1121
Throttle Position (TP) Sensor Inconsistent With MAF Sensor High Voltage
P1122
Throttle Position (TP) Sensor Inconsistent With MAF Sensor Low Voltage
P1124
TPS Out Of Self Teat Range (Mazda)
P1124
TPS Out Of Self Teat Range (Ford)
P1125
TPS Intermittant (Mazda)
P1125
TPS Intermittant (Ford)
P1127
Exhaust Not Warm Enough, Downstream Sensor Not Tested (Ford)
P1128
MAP Lower Than Expected (Acura)
P1129
Upstream O2 Sensors Swapped Bank To Bank (HO2S-11-21) (Ford)
P1129
MAP Higher Than Expected (Acura)
P1129
Downstream O2 Sensors Swapped Bank To Bank (HO2S-12-22) (Ford)
P1130
Heated O2 Sensor (HO2S) 11 At Adaptive Limit (Mazda)
P1130
Lack Of HO2S-11, Fuel Trim At Limit (Ford)
P1131
HO2S 11 Indicates Lean (Mazda)
P1131
HO2S 11 Indicates Lean (Ford)
P1132
HO2S 11 Indicates Rich (Mazda)
P1132
HO2S 11 Indicates Rich (Ford)
P1133
Heated Oxygen Sensor (HO2S) insufficient switching bank 1 sensor 1 (Rear Bank)
P1134
Heated Oxygen Sensor (HO2S) transition time ratio bank 1 sensor 1 (Rear Bank)
P1137
Lack Of HO2S-12 Switch Indicates Lean (Ford)
P1138
Lack Of HO2S-12 Switch Indicates Rich (Ford)
P1150
Lack Of HO2S-21 Switch Fuel Trim At Limit (Ford)
P1151
Lack Of HO2S-21 Switch Indicates Lean (Ford)
P1152
Lack Of HO2S-21 Switch Indicates Rich (Ford)
P1153
Heated Oxygen Sensor (HO2S) insufficient switching bank 2 sensor 1 (Front Bank)
P1154
Heated Oxygen Sensor (HO2S) transition time ratio bank 2 sensor 1 (Front Bank)
P1157
Lack Of HO2S-22 Switch Indicates Lean (Ford)
P1158
Lack Of HO2S-22 Switch Indicates Rich (Ford)
P1168
FRP Sensor In Range But Low (Ford)
P1169
FRP Sensor In Range But High (Ford)
P1180
Fuel Delivery System Low (Ford)
P1181
Fuel Delivery System High (Ford)
P1183
EOT Sensor Circuit Malfunction (Ford)
P1184
EOT Sensor Out Of Range (Ford)
P1189
Engine Oil Pressure Switch Circuit
P1192
Inlet Air Temp. Circuit Low (Chrysler)
P1193
Inlet Air Temp. Circuit High (Chrysler)
P1195
1/1 O2 Sensor Slow During Catalyst Monitor (Chrysler)
P1196
2/1 O2 Sensor Slow During Catalyst Monitor (Chrysler)
P1197
1/2 O2 Sensor Slow During Catalyst Monitor (Chrysler)
P1198
Radiator Temperature Sensor Volts Too High (Chrysler)
P1199
Radiator Temperature Sensor Volts Too Low (Chrysler)
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.
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