P1491 NISSAN SENTRA Secondary Switch Solenoid Circuit Malfunction

Possible causes – Vacuum cut valve bypass valve– Vacuum cut valve– Bypass hoses for clogging– EVAP control system pressure sensor and circuit– EVAP canister vent control valve– Hose between fuel tank and vacuum cut valve clogged– Hose between vacuum cut valve and EVAP canister clogged– EVAP purge port of fuel tank for clogging Tech description…

P1491 NISSAN Vacuum Cut Valve Bypass Valve

Possible causes – Vacuum cut valve bypass valve– Vacuum cut valve– Bypass hoses for clogging– EVAP control system pressure sensor and circuit– EVAP canister vent control valve– Hose between fuel tank and vacuum cut valve clogged– Hose between vacuum cut valve and EVAP canister clogged– EVAP purge port of fuel tank for clogging Tech description…

P1720 NISSAN Vehicle Speed Meter Circuit Malfunction

Possible causes – VDC/TCS/ABS to ECM circuit harness is open or shorted– TCM to ECM circuit harness is open or shorted– VDC/TCS/ABS to ECM circuit connectors – TCM to ECM circuit connectors – Faulty revolution sensor When is the obd code mean? Malfunction is detected when ECM detects a difference between two vehicle speed sensor…

P1722 NISSAN Estimated Vehicle Speed Signal

Possible causes – Vehicle speed sensor harness is open or shorted– Vehicle speed sensor circuit poor electrical connection– Faulty Vehicle Speed Sensor When is the obd code mean? There is a big difference between the vehicle speed signal from the ABS actuator and the electric unit (control unit), and the vehicle speed sensor signal. Symptoms…

P1605 NISSAN Automatic Transmission Communication

Possible causes – Weak battery– Faulty Transmission Control Module (TCM)– Harness is open or shorted between (TCM) and Engine Control Module (ECM)– Poor circuit electrical connection between (TCM) and (ECM) When is the obd code mean? Malfunction is detected when an incorrect signal from Transmission control module (TCM) is sent to Engine Control Module (ECM)….

P1148 NISSAN Closed Loop Control Function Bank 1

Possible causes For Models 2005 and up:– Faulty Air Fuel Ratio Sensor 1 Bank 1 – Air Fuel Ratio Sensor 1 Bank 1 circuit is open or shorted– Air Fuel Ratio Sensor 1 Bank 1 circuit electrical connection For Models before 2005:– Faulty Heated Oxygen Sensor 1 Bank 1– Heated Oxygen Sensor 1 Bank 1…

P1168 NISSAN Closed Loop Control Function Bank 2

Possible causes For Models 2005 and up:– Faulty Air Fuel Ratio Sensor 1 Bank 2 – Air Fuel Ratio Sensor 1 Bank 2 circuit is open or shorted– Air Fuel Ratio Sensor 1 Bank 2 circuit electrical connection For Models before 2005:– Faulty Heated Oxygen Sensor 1 Bank 2– Heated Oxygen Sensor 1 Bank 2…