What Does Code P0045 Mean This code has varied definitions as provided by the manufacturer. Generally, this code indicates the ECU (Engine Control Unit) has detected an abnormal reading in the turbocharger or supercharger boost control circuit. This is on circuit "A" and is related to an area of the system circuit, as opposed to a particular malfunction or component. engine code P0045P0045 fixobd P0045dtc P0045obd code P0045obd2 P0045P0045 car codediagnostic code P0045car code P0045check engine code P0045fehlercode P0045P0045 fiatcodigo P0045codigo falla P0045P0045 kody błędówcodigo de falla P0045Possible symptoms Engine Light ON (or Service Engine Soon Warning Light) What causes the P0045 code? The most common causes of this code include: Vacuum leaks in the intake manifold A dirty air cleaner A waste gate either stuck open or closed A defective intercooler Loose connection between the exhaust manifold and the turbocharger Loose connection between the turbocharger and the intake pipe Faulty boost sensor Shorted or open wiring in the boost sensor circuit Loose, corroded, or disconnected electrical connectors in the boost sensor's 5-volt reference circuit Turbo failure, which is usually caused by internal oil leaks and oil supply problems Troubleshooting P0045 Open Circuit means that a component or sensor in a system is deprived of the reference voltage it needs to work. Causes of open circuits are many and varied, but for the most part, this type of code is caused by broken wiring, poor connections across electrical connectors or previously repaired wiring, loss of ground that prevents current flow, blown fuses, defective relays, faulty switches, or any of a host of other issues and problems that prevents the flow of current through wiring. I would begin my diagnosis with a careful visual inspection of all related wiring, connectors, components, and vacuum hoses. Repair or replace damaged, burnt, or disconnected parts as required. Also, check battery cable and battery post condition. Carefully rectify loose or corroded battery connectors and/or terminals before proceeding with your diagnosis. Continue by noting all stored codes and freeze frame data before clearing all codes from the system. Clearing the codes may allow the turbocharger/supercharger boost control system to return to normal operating conditions if the PCM placed it in a failure or “limp-in” mode. It may also make you aware of an intermittent failure condition that will be much more difficult to diagnose than a “hard” failure. After the codes have been cleared, obtain a manufacturer’s service manual (or equivilant) with a diagnostic flow chart for this code. You may carefully follw the steps of the flow chart but here a few basic tests that you may attempt: Boost Control Solenoid After obtaining specifications for the boost control solenoid, disconnect the solenoid electrical connector and use a digital volt/ohmmeter (DVOM) to check solenoid resistance levels. If solenoid resistance fails to comply with specs, replace it and retest the system. If solenoid resistance complies with the specs in the service manual, carefully apply battery voltage and a ground signal to the solenoid and listen for an audible “tick”. If the solenoid makes a sound, it is likely functioning properly. Check the passages of the solenoid for signs of obstruction and replace as necessary. System Circuitry If system wiring and connectors appear to be in proper working order, perform a circuit voltage and continuity test. Test voltage at the boost control solenoid when it is commanded ON and compare your actual findings with manufacturer’s specifications. If the signal fails to comply, establish which of the signals (voltage or ground) are absent according to your particular vehicle specifications. Prior to testing for individual system circuit continuity, disconnect the connector from the PCM and all related components to prevent possible damage. Use the DVOM to test continuity on each individual circuit and repair open (disconnected, cut, burnt, or disconnected) circuits and shorted (to ground or vehicle voltage) circuits as required. PCM While testing the PCM is not feesible, you may follow a process of elimination and remember that failure of this component is rare. Searches related to P0045 p0045 duramax p0045 toyota hilux p0045 hino p0045 isuzu p0045 isuzu npr p0045 chevrolet captiva p0045 nissan p0045 vw
