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Join me and my entire class at Rosedale Technical College as we take a field trip to Latorre's Auto to troubleshoot some problem cars. This is one of four that we did together. One of them didn't make it on camera (broken timing belt on an Eclipse) and two other ones that did that are available on SD Premium.
In this video I will show you how to quickly test a knock sensor circuit. This procedure applies to any knock sensor that has a bias voltage sent to it and is not unique to Nissan.
If you follow a manufacture flow chart when troubleshooting computer inputs and outputs, they almost always have you disconnect the computer and sensor to perform resistance measurements on the wiring to isolate the problem.
GM 3100 engine, knock sensor test.
What I am showing in this video is how to quickly test a throttle position sensor and wiring.