Question about 2000 Nissan Maxima

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Nissian path finder 2000 code p0505

New codes p1320 code po505

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That is idle air control (IAC) system malfunction,it's causes may include:
IAC motor connector is damaged (check connector and pins for damage, and moisture);
One or more IAC circuits open or shorted to ground;
One or more IAC circuits are shorted to voltage;
IAC has failed; or PCM has failed
You can clearing the fault codes. Then unplug the IAC and start the engine. If the P0505 code doesn't reset, replace the IAC. It is internally shorting one of the IAC circuits. If the code DOES return after unplugging the IAC and starting the engine, then you know it isn't the IAC motor. Visually check the wiring harness all the way back to the PCM. You may need to visually inspect the harness by removing all the insulation off the wires. It is possible that the wires could be shorting to eachother or to other wires in the harness.

Hope this helpful.
greetings

Plus: DTC table click here.

Posted on Nov 11, 2011

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Posted on Jan 02, 2017

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