THE CODE DIRECTORY
Diagnostic code references — Page 57.
Browse canonical reference entries. Each definition keeps its own source and vehicle-applicability limits.
Buick / Cadillac +7
P1433
Fuel Level Sensor 2 Circuit High Voltage
PowertrainRead the code
Volkswagen
P1433
Secondary Air Injection Pump Relay Circuit Open
PowertrainRead the code
Volkswagen
P1434
Secondary Air Injection Pump Relay Circuit Short To B+
PowertrainRead the code
Volkswagen
P1435
Secondary Air Injection Pump Relay Circuit Short To Ground
PowertrainRead the code
Volkswagen
P1436
Secondary Air Injection Pump Relay Circuit Electrical Malfunction
PowertrainRead the code
BMW
P1438
Purge Control Valve Control Open Circuit
PowertrainRead the code
BMW
P1439
Purge Control Valve Control Circuit Signal Low
PowertrainRead the code
Mazda
P1439
Floor Temp Switch Circuit
PowertrainRead the code
Volkswagen
P1439
EGR Valve Position Sensor Adaptation At Limit
PowertrainRead the code
BMW
P1440
Purge Control Valve Control Circuit Signal High
PowertrainRead the code
Jaguar
P1440
Purge Valve Stuck Open
PowertrainRead the code
Nissan
P1440
EVAP Control System Small Leak
PowertrainRead the code
Subaru
P1440
Fuel Tank Pressure Control System Low Input
PowertrainRead the code
Volkswagen
P1440
EGR Valve Power Stage Open
PowertrainRead the code
BMW
P1441
Leakage Diagnostic Pump Control Open Circuit
PowertrainRead the code
Buick / Cadillac +7
P1441
Evaporative Emission (EVAP) System Flow During Non-Purge
PowertrainRead the code
Jaguar
P1441
ELC System 1
PowertrainRead the code
Nissan
P1441
Vacuum Cut Valve Bypass Valve
PowertrainRead the code
Subaru
P1441
Fuel Tank Pressure Control System High Input
PowertrainRead the code
Volkswagen
P1441
EGR Valve Circuit Open Short To Ground
PowertrainRead the code
BMW
P1442
Leakage Diagnostic Pump Control Circuit Signal Low
PowertrainRead the code
Buick / Cadillac +7
P1442
EVAP Vacuum Switch High Voltage During Ignition On
PowertrainRead the code
Ford / Lincoln +1
P1442
Secondary Air Injection System Monitor Circuit High Voltage
PowertrainRead the code
Subaru
P1442
Fuel Level Sensor Circuit Range Performance
PowertrainRead the code
Volkswagen
P1442
EGR Valve Position Sensor Signal Too High
PowertrainRead the code
BMW
P1443
Leakage Diagnostic Pump Control Circuit Signal High
PowertrainRead the code
Ford / Lincoln +1
P1443
Evaporative Emission Control System Vacuum System Purge Control Solenoid or Purge Control Valve Fault
PowertrainRead the code
Mazda
P1443
EVAP System Purge Flow Fault
PowertrainRead the code
Mitsubishi
P1443
EVAP Purge Control Solenoid 2 Circuit Fault
PowertrainRead the code
Nissan
P1443
EVAP Canister Control Vacuum Switch Circuit Fault
PowertrainRead the code
Subaru
P1443
EVAP Control System Vent Control Function Problem
PowertrainRead the code
Volkswagen
P1443
EGR Valve Position Sensor Signal Too Low
PowertrainRead the code
BMW
P1444
Diagnostic Module Tank Leakage DM-TL Pump Control Open Circuit
PowertrainRead the code
Ford / Lincoln +1
P1444
Purge Flow Sensor Circuit Input Low
PowertrainRead the code
Mazda
P1444
EVAP Purge Flow Sensor Circuit Low Voltage
PowertrainRead the code
Nissan
P1444
Canister Purge Volume Control Solenoid Valve
PowertrainRead the code
Volkswagen
P1444
EGR Valve Position Sensor Range Performance
PowertrainRead the code
BMW
P1445
Diagnostic Module Tank Leakage DM-TL Pump Control Circuit Signal Low
PowertrainRead the code
Ford / Lincoln +1
P1445
Purge Flow Sensor Circuit Input High
PowertrainRead the code
Mazda
P1445
EVAP Purge Flow Sensor Circuit High Voltage
PowertrainRead the code
Nissan
P1445
EVAP Canister Purge Volume Control Valve
PowertrainRead the code
Volkswagen
P1445
Catalyst Temperature Sensor 2 Circuit Range Performance
PowertrainRead the code
BMW
P1446
Diagnostic Module Tank Leakage DM-TL Pump Control Circuit Signal High
PowertrainRead the code
Mazda
P1446
Evaporative Vacuum Solenoid Circuit
PowertrainRead the code
Nissan
P1446
EVAP Canister Vent Control Valve Closed
PowertrainRead the code
Volkswagen
P1446
Catalyst Temperature Circuit Short To Ground
PowertrainRead the code
BMW
P1447
Diagnostic Module Tank Leakage DM-TL Pump Too High During Switching
PowertrainRead the code
Jaguar
P1447
ELC System Closure Valve Flow
PowertrainRead the code
Nissan
P1447
EVAP Control System Purge Flow Monitoring
PowertrainRead the code
Volkswagen
P1447
Catalyst Temperature Circuit Open Short To B+
PowertrainRead the code
BMW
P1448
Diagnostic Module Tank Leakage DM-TL Pump Too Low During Switching
PowertrainRead the code
Jaguar
P1448
ELC System 2
PowertrainRead the code
Nissan
P1448
EVAP Canister Vent Control Valve Open
PowertrainRead the code
Volkswagen
P1448
Catalyst Temperature Sensor 2 Circuit Short To Ground
PowertrainRead the code
BMW
P1449
Diagnostic Module Tank Leakage DM-TL Pump Too High
PowertrainRead the code
Kia
P1449
Canister Drain Cut Valve Open Or Short 1.8L
PowertrainRead the code
Mazda
P1449
Evaporative Check Solenoid Circuit
PowertrainRead the code
Volkswagen
P1449
Catalyst Temperature Sensor 2 Circuit Open Short To B+
PowertrainRead the code
BMW
P1450
Diagnostic Module Tank Leakage DM-TL Switching Solenoid Open Circuit
PowertrainRead the code
Buick / Cadillac +7
P1450
Barometric Pressure Sensor Circuit
PowertrainRead the code
Ford / Lincoln +1
P1450
Inability of Evaporative Emission Control System to Bleed Fuel Tank
PowertrainRead the code
Geo
P1450
Barometric Pressure Sensor Circuit Fault
PowertrainRead the code
Kia
P1450
Excessive Vacuum Leak
PowertrainRead the code
Mazda
P1450
Unable To Bleed Up Fuel Tank Vacuum
PowertrainRead the code
Suzuki
P1450
Barometric Pressure Sensor Too Low Or Too High
PowertrainRead the code
Volkswagen
P1450
Secondary Air Injection System Circuit Short To B+
PowertrainRead the code
BMW
P1451
Diagnostic Module Tank Leakage DM-TL Switching Solenoid Control Circuit Signal Low
PowertrainRead the code
Buick / Cadillac +9
P1451
Barometric Pressure Sensor Performance
PowertrainRead the code
Ford / Lincoln +1
P1451
EVAP Control System Canister Vent Solenoid Circuit Malfunction
PowertrainRead the code
Mazda
P1451
Canister Vent Solenoid Circuit
PowertrainRead the code
Volkswagen
P1451
Secondary Air Injection Circuit Short To Ground
PowertrainRead the code
BMW
P1452
Diagnostic Module Tank Leakage DM-TL Switching Solenoid Control Circuit Signal High
PowertrainRead the code
Ford / Lincoln +1
P1452
Inability of Evaporative Emission Control System to Bleed Fuel Tank
PowertrainRead the code
Volkswagen
P1452
Secondary Air Injection System Circuit Open
PowertrainRead the code
BMW
P1453
Secondary Air Injection Pump Relay Control Circuit Electrical
PowertrainRead the code
Jaguar
P1453
Fuel Tank Pressure Relief Valve Malfunction
PowertrainRead the code
Volkswagen
P1453
Exhaust Gas Temperature Sensor 1 Open Short To B+
PowertrainRead the code
BMW
P1454
Secondary Air Injection Pump With Series Resistor Control Circuit Electrical
PowertrainRead the code
Jaguar
P1454
Evaporative Emission Control System Vacuum Test
PowertrainRead the code
Volkswagen
P1454
Exhaust Gas Temperature Sensor 1 Short To Ground
PowertrainRead the code
Ford / Lincoln +1
P1455
Substantial Leak or Blockage in Evaporative Emission Control System
PowertrainRead the code
Kia
P1455
Fuel Tank Sending Unit Open Or Short 1.8L
PowertrainRead the code
Mazda
P1455
Fuel Tank Level Sensor Circuit
PowertrainRead the code
Volkswagen
P1455
Exhaust Gas Temperature Sensor 1 Range Performance
PowertrainRead the code
BMW
P1456
Heated Catalyst Heater Power Supply Open Circuit Bank 1
PowertrainRead the code
Acura / Honda
P1456
Evaporative Emission Control System Leak Detected Fuel Tank System
PowertrainRead the code
Mazda
P1456
Fuel Tank Temperature Sensor Circuit
PowertrainRead the code
Volkswagen
P1456
Exhaust Gas Temperature Control Bank 1 Limit Attained
PowertrainRead the code
BMW
P1457
Heated Catalyst Heater Power Switch Temperature Sensor Electrical Bank 1
PowertrainRead the code
Ford / Lincoln +1
P1457
Unable To Pull Vacuum In Tank
PowertrainRead the code
Acura / Honda
P1457
Evaporative Emission Control System Leak Detected Control Canister System
PowertrainRead the code
Kia
P1457
Purge Solenoid Valve Low System Malfunction
PowertrainRead the code
Mazda
P1457
Purge Solenoid Control System
PowertrainRead the code
Volkswagen
P1457
Exhaust Gas Temperature Sensor 2 Open Short To B+
PowertrainRead the code
Kia / Mazda
P1458
A/C Compressor Clutch Signal Fault
PowertrainRead the code
Volkswagen
P1458
Exhaust Gas Temperature Sensor 2 Short To Ground
PowertrainRead the code
BMW
P1459
Heated Catalyst Heater Power Supply Open Circuit Bank 2
PowertrainRead the code
Acura / Honda
P1459
EVAP Purge Flow Switch Malfunction
PowertrainRead the code
Volkswagen
P1459
Exhaust Gas Temperature Sensor 2 Range Performance
PowertrainRead the code
BMW
P1460
Heated Catalyst Heater Power Switch Temperature Sensor Electrical Bank 2
PowertrainRead the code
These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.