Category: Chevrolet

P1503 Chevrolet Theft Deterrent Fuel Enable Signal Not Correct

P1493 Chevrolet 5V Supply Output Too Low

P1494 Chevrolet EVAP Leak Detection Pump Pressure Switch Condition Possible causes – Leak Detection Pump (LDP) harness is open or shorted – Leak Detection Pump (LDP) poor electrical connection – Faulty Leak Detection Pump (LDP) What about the obd code? Malfunction is detected when the Powertrain Control Module (PCM) detected the leak detection pump switch…

P1495 Chevrolet EVAP Leak Detection Pump Solenoid Circuit Condition Possible causes – Leak Detection Pump (LDP) harness is open or shorted – Leak Detection Pump (LDP) poor electrical connection – Faulty Leak Detection Pump (LDP) What about the obd code? Malfunction is detected when the Powertrain Control Module (PCM) detected the pump solenoid did not…

P1498 Chevrolet Exhaust Gas Recirculation (EGR) Valve Position Sensor Circuit High Voltage

P1489 Chevrolet Catalytic Conv Overheat Detected

P1490 Chevrolet Vacuum Cut Valve Bypass Valve Possible causes – Faulty Vacuum Cut Valve Bypass Valve– Clogged vacuum hoses to the Vacuum Cut Valve Bypass Valve– Vacuum cut valve bypass valve harness is open or shorted– Vacuum cut valve bypass valve electrical circuit poor connection What about the obd code? – An improper voltage signal…

P1491 Chevrolet Exhaust Gas Recirculation Valve Insufficient Lift 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…

P1492 Chevrolet APLSOL Chevrolet Solenoid Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1487 Chevrolet Catalyst Temp Sens Circ Shorted Low

P1484 Chevrolet Open Power To Ground VCRM Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1485 Chevrolet EGRV Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1486 Chevrolet EVAP System Pinched Hose Found Possible causes – Leak Detection Pump (LDP) pressure hose obstructed – Faulty Leak Detection Pump (LDP) – Obstructed hose – EVAP canister obstructed What about the obd code? Malfunction is detected when during system monitor test the Powertrain Control Module (PCM) detected a pinched EVAP hose Symptoms –…

P1480 Chevrolet Cooling fan relay 1 circuit high input

P1481 Chevrolet Fan Secondary Low With High Fan On Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1482 Chevrolet SCP Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1483 Chevrolet Power To Fan Circuit Overcurrent Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1474 Chevrolet Low Fan Control Primary Circuit Malfunction Possible causes FCV circuit open or shorted. B+ or ground circuit fault to cooling fan. VPWR open to cooling fan (if applicable). Damaged cooling fan module. PCM damaged. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1474 Chevrolet Description This test checks the Fan…

P1475 Chevrolet Fan Relay (Low) Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1477 Chevrolet Additional Fan Relay Circuit Malfunction Symptoms – Engine Light ON (or Service Engine Soon Warning Light)