P1290 Code NISSAN Possible Causes
- Throttle actuator motor relay leakage
- Throttle actuator motor relay circuit open or shorted
- Poor electrical connection in throttle actuator motor relay circuit
How is NISSAN P1290 Code Repair Performed?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
When is NISSAN P1290 Code Detected?
The Engine Control Module (ECM) detects that a power supply voltage for the throttle actuator motor is excessively low.
What are Possible Symptoms of NISSAN P1290 Code?
- Check Engine Light On (or Service Engine Soon Warning Light)
What Does NISSAN P1290 Code Mean?
Electrical power for the throttle actuator motor is supplied to the ECM through the throttle actuator motor relay. The throttle actuator motor relay is turned ON/OFF by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to the throttle actuator motor relay and battery voltage is supplied to the ECM. When the ignition switch is OFF, the ECM sends an OFF signal to the throttle actuator motor relay and battery voltage is not supplied to the ECM.