Knowledge Hub
Decoded by engineers,
verified by technicians.
888 guides, repair insights and product knowledge from the iCarsoft Technical Team.
Tech Center & Insights
What is P0278?
What is P0278? It’s fuel injector circuit high input (Cylinder 6). Use iCarsoft CR Pro S to test injector, monitor voltage & clea…
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Tech Center & Insights
What is P1490?
What is P1490? It’s EVAP system canister purge solenoid valve circuit malfunction. Use iCarsoft CR Pro S to test solenoid, monito…
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Tech Center & Insights
What is P0433?
What is P0433? It’s catalytic converter efficiency below threshold (Bank 2). Use iCarsoft CR Pro S to test O2 sensors, monitor ex…
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Tech Center & Insights
What is P0413?
What is P0413? It’s secondary air injection (SAI) system relay A control circuit malfunction. Use iCarsoft CR Pro S to test relay…
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Tech Center & Insights
What is P2021?
What is P2021? It’s intake manifold runner control (IMRC) circuit range/performance (Bank 1). Use iCarsoft CR Pro S to test actua…
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Tech Center & Insights
What is P1442?
What is P1442? It’s EVAP system canister purge control valve circuit malfunction. Use iCarsoft CR Pro S to test purge valve, moni…
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Tech Center & Insights
What is P2452?
What is P2452? It’s DPF differential pressure sensor (DPS) circuit high input (diesel vehicles). Use iCarsoft CR Pro S to test DP…
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Tech Center & Insights
What is P2009?
What is P2009? It’s intake manifold runner control (IMRC) actuator circuit malfunction (Bank 1). Use iCarsoft CR Pro S to test IM…
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Tech Center & Insights
What is P0723?
What is P0723? It’s output speed sensor (OSS) circuit high input. Use iCarsoft CR Pro S to test OSS, monitor voltage/speed & clea…
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Tech Center & Insights
What is P1446?
What is P1446? It’s EVAP system canister purge volume control valve circuit malfunction. Use iCarsoft CR Pro S to test valves/sol…
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Tech Center & Insights
What is P0414?
What is P0414? It’s secondary air injection (SAI) pump control circuit malfunction. Use iCarsoft CR Pro S to test SAI pump/relay,…
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Tech Center & Insights
What is P0660?
What is P0660? It’s intake manifold tuning valve (IMTV) control circuit malfunction. Use iCarsoft CR Pro S to test IMTV/solenoid,…
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Tech Center & Insights
What is P2273?
What is P2273? It’s O2 sensor signal stuck lean (Bank 1, Sensor 2). Use iCarsoft CR Pro S to test O2 sensors, monitor voltage & c…
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Tech Center & Insights
What is P1500?
What is P1500? It’s idle air control (IAC) system malfunction. Use iCarsoft CR Pro S to test IAC valve, monitor idle data & clear…
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Tech Center & Insights
What is P2105?
What is P2105? It’s throttle actuator control system forced limited power. Use iCarsoft CR Pro S to test actuator, monitor ETC da…
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Tech Center & Insights
What is P1448?
What is P1448? It’s EVAP system purge control circuit malfunction. Use iCarsoft CR Pro S to test purge/vent valves, monitor press…
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Tech Center & Insights
What is P0712?
What is P0712? It’s transmission fluid temperature (TFT) sensor circuit low input. Use iCarsoft CR Pro S to monitor temp/voltage,…
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Tech Center & Insights
What is P0124?
What is P0124? It’s throttle position sensor (TPS) A circuit intermittent. Use iCarsoft CR Pro S to monitor TPS voltage, test thr…
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Tech Center & Insights
What is P1409?
What is P1409? It’s EGR valve position sensor circuit malfunction. Use iCarsoft CR Pro S to test EGR components, monitor position…
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Tech Center & Insights
What is P0431?
What is P0431? It’s catalyst efficiency below threshold (Bank 2, Sensor 1). Use iCarsoft CR Pro S to test O2 sensors, monitor eff…
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Tech Center & Insights
What is P1501?
What is P1501? It’s idle air control (IAC) valve circuit malfunction. Use iCarsoft CR Pro S to test IAC valve, monitor idle data …
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Tech Center & Insights
What is P1400?
What is P1400? It’s EGR flow sensor circuit malfunction. Use iCarsoft CR Pro S to test EGR components, monitor flow data & clear …
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Tech Center & Insights
What is P0429?
What is P0429? It’s EGR flow control circuit high. Use iCarsoft CR Pro S to test EGR valve/solenoid, monitor live data & clear P0…
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Tech Center & Insights
What is P2033?
What is P2033? It’s EGT sensor circuit high input (Bank 1, Sensor 2). Use iCarsoft CR Pro S to monitor temp/voltage, test circuit…
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