P1605 This DTC is stored if the engine speed drops below the set speed. Using the intelligent tester, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting. It is necessary to check if the vehicle ran out of fuel before performing troubleshooting, as this DTC is also stored when idling is unstable due to running out of fuel.
| DTC NO | DTC Detection Condition | Trouble Area |
|---|---|---|
| P1605 | After 5 seconds or more elapse after starting the engine, |
Air leak in intake system Purge valve Brake booster hose not connected properly Mass air flow meter sub-assembly Engine coolant temperature sensor Wire harness or connector Air fuel ratio sensor Power supply circuit (purge valve, fuel injector, ignition coil) Fuel pump Fuel pump control system Fuel line Throttle body Camshaft timing oil control valve Knock sensor Ignition coil Fuel injector Spark plug(s) Air conditioning system Power steering system Electrical load signal system EGR valve assembly ECM |