Category: Acura

P1453 Acura Fuel Tank Pressure Relief Valve Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Acura Vehicle: Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL, Acura SLX, Acura NSX, Acura RL,…

P1454 Acura Fuel Tank Pressure (FTP) Sensor Range/Performance Problem Acura Vehicle: Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL, Acura SLX, Acura NSX, Acura RL, Acura ZDX

P1455 Acura Exhaust Gas Temperature Sensor 1 Range/Performance Possible causes – Faulty Exhaust Gas Temperature Sensor– Exhaust Gas Temperature Sensor harness is open or shorted– Exhaust Gas Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Acura Vehicle: Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura…

P1448 Acura EVAP Canister Vent Control Valve Open Possible causes – EVAP canister vent control valve– EVAP canister is saturated with water– EVAP control system pressure sensor and the circuit– Blocked rubber tube to EVAP canister vent control valve– Water separator Tech description Start by checking for damage EVAP canister or hoses. If no hoses…

P1449 Acura Evaporative Check Solenoid Circuit Malfunction Possible causes – Battery Module Tech description Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1449 Acura Description The high-voltage battery in the IMA (integrated motor assist) system is designed to operate within the upper and lower limits of the SOC (state of charge) voltage…

P1450 Acura Unable To Bleed Up Fuel Tank Vacuum Possible causes Blockages or kinks in the EVAP canister tube or EVAP canister purge outlet tube (between the fuel tank, EVAP the canister purge valve and the EVAP canister). Fuel filler cap stuck closed (no vacuum relief). Contaminated fuel vapor elbow on the EVAP canister. Restricted…

P1451 Acura EVAP Control System Canister Vent Solenoid Circuit Malfunction Possible causes – Loose or missing gas cap– Faulty gas cap– Canister Vent Solenoid harness is open or shorted– Canister Vent Solenoid electrical circuit poor connection– Faulty Canister Vent Solenoid Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1451 Acura Mercury Description…

P1445 Acura Catalyst Temperature Sensor 2 Circuit Range/Performance Possible causes – Faulty Catalyst Temperature Sensor– Catalyst Temperature Sensor harness is open or shorted– Catalyst Temperature Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) Acura Vehicle: Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX,…

P1446 Acura EVAP Canister Vent Control Valve Close Possible causes – EVAP control system pressure sensor and the circuit– Blocked rubber tube to EVAP canister vent control valve– EVAP canister vent control valve– Water separator– EVAP canister is saturated with water Tech description What about the obd code? EVAP canister vent control valve remains closed…

P1447 Acura Evaporative Emission Control System Purge Flow Monitor Possible causes – EVAP canister purge volume control solenoid valve stuck closed – EVAP control system pressure sensor and the circuit – Loose, disconnected or improper connection of rubber tube – Blocked rubber tube – Cracked EVAP canister – EVAP canister purge volume control solenoid valve…

P1441 Acura Secondary Air Injection System Switching Valve No.2 Stuck Open Bank 1 Possible causes – Faulty Vacuum Switching Valve (VSV)– VSV for air injection control circuit Bank 1– Air switching valve No.2 Bank 1– VSV for air injection system Bank 1– Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon…

P1442 Acura Secondary Air Injection System Switching Valve No.2 Stuck Close Bank 1 Possible causes – Faulty Vacuum Switching Valve (VSV)– VSV for air injection control circuit Bank 1– Air switching valve No.2 Bank 1– VSV for air injection system Bank 1– Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon…

P1443 Acura Evaporative Emission Control System Control Valve Possible causes Blocked fuel vapor hose between the EVAP canister purge valve and the FTP sensor. Blocked fuel vapor hose between the EVAP canister purge valve and the engine intake manifold. Blocked vacuum hose between the EVAP canister purge valve solenoid and the engine intake manifold. EVAP…

P1444 Acura Secondary Air Injection System Switching Valve No.2 Stuck Open Bank 2 Possible causes – Faulty Vacuum Switching Valve (VSV)– VSV for air injection control circuit Bank 2– Air switching valve No.2 Bank 2– VSV for air injection system Bank 2– Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon…

P1436 Acura A/C Evaporator Air Temperature Circuit Low Possible causes ACET circuit short to ground or SIG RTN. Damaged ACET sensor. Damaged PCM. Tech description The PCM sources a low current 5 volts on the ACET circuit (this voltage can be measured with the sensor disconnected). As the A/C evaporator air temperature changes, the ACET…

P1437 Acura A/C Evaporator Air Temperature Circuit High Possible causes ACET circuit open. SIG RTN circuit open to the ACET sensor. ACET circuit short to power (VREF). Damaged ACET sensor. Damaged PCM. Tech description The PCM sources a low current 5 volts on the ACET circuit (this voltage can be measured with the sensor disconnected)….

P1438 Acura A/C Evaporator Air Temperature Circuit Range/Performance Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1438 Acura Information for specific makes Acura Vehicle: Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL,…

P1439 Acura Motor Drive Module (MDM) Short Circuit Acura Vehicle: Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL, Acura SLX, Acura NSX, Acura RL, Acura ZDX

P1440 Acura Evaporative Emission Control System, Small Leak Possible causes – Incorrect fuel tank vacuum relief valve – Incorrect fuel filler cap used – Fuel filler cap remains open or fails to close – Foreign matter caught in fuel filler cap – Leak is in line between intake manifold and EVAP canister purge volume control…

P1432 Acura Fuel Level Sensor 2 Circuit Low Voltage Acura Vehicle: Acura ILX, Acura MDX, Acura RDX, Acura RLX, Acura TL, Acura TSX, Acura ZDX, Acura CSX, Acura EL, Acura Integra, Acura RSX, Acura Legend, Acura Vigor, Acura CL, Acura SLX, Acura NSX, Acura RL, Acura ZDX