Nissan 23731-3S500 Magnet Sensor Assembly

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Being an important component in the engine, the Camshaft Position sensor is responsible for monitoring engine speed and piston position and transmitting this information to the computer. It includes a rotating plate that has slots that gives engine speed and positions signals. The slits, through light-emitting diodes (LED) and photo-diodes, are converted into off-on pulses which are then transmitted to the PCM. In four-cylinder models as well as 3.3L V6 models, the Camshaft Position sensor is part of the distributor. To test the sensor, disconnect power from terminal 5 on electrical connector at bottom of distributor, check for battery voltage on terminal no. 5, and measure continuity to ground on terminal no. 6 using a suitable ohmmeter between the terminals). Remove the distributor cap and reconnect its connector; probe terminal no. 3 with one hand while someone slowly turns distributor shaft in reverse direction with other hand; look for a voltage change as rotor passes by contacts inside distributor block; repeat steps for terminal no. 4 (voltage should be present at both terminals). If it doesn't operate correctly, replace the distributor only because you can not fix individual pieces of it separately. On models equipped with 3.5L V6 engines, this sensor is installed on timing chain cover: it uses magnetism to detect absence of camshaft sprocket teeth through coil and core arrangement located opposite to these teeth. On '03-later models there are two sensors located on each lobe of front timing chain cover on top of each camshaft which looks like a flat small metal stick having many grooves inside it-such parts fit into pre-cut deep slots made around outside circumference where these lobes rotate near their tops; so if they do not align perfectly during assembly process then all next actions will lead us nowhere except situation when engine fails starting up instantly after igniting spark plugs causing explosion at once which in turn cannot be prevented too unless it is solved before time comes through carefully replacing these things without missing any single step. To find out whether the sensor is functioning correctly, remove the electrical connector and check the resistance across the terminals. If there is incorrect resistance value found on it, make sure you replace it with new one and inspect its wiring harnesses for broken wires.

For four-cylinder and 3.3L V6 models, the Crankshaft Position sensor is located at the rear of the engine on the transmission bellhousing. It detects gaps in the flywheel/driveplate gear teeth to determine crankshaft speed which is used by the PCM for engine misfire detection. Remove it from the transmission bellhousing and measure the resistance across its terminals to check the sensor. The resistance should be within a specified range for each engine type. If these values of resistance are not right then it should be replaced by a new one. Faulty wiring harness may be revealed if correct values have been observed in both aforementioned cases. If these are fine, but, then there is a need of diagnosing them before any repair work can be done by qualified facility in PCM. There are two Crankshaft Position sensors for 3.5L V6 models; The Crankshaft Position sensor (POS) mounted on aluminum oil pan section at rear of engine close to transmission bellhousing and The Crankshaft Position sensor (REF) located on aluminum oil pan section at front of engine below crankshaft pulley which serve as gaps detectors using permanent magnet, core and coil that vary voltage signals sent to PCM . These signals which include ignition timing, fuel synchronization and misfire detection are used by PCM . Measure and check this against specified range for REF, Crankshaft Position sensor where R denotes Resistance between terminals should be taken as reference value. If these values of resistance are not correct then it would require replacement with new one while checking also wiring harness for open circuits or damage too as an alternative option if need arises when everything seems alright with both wiring harness and properly functioning sensors being present must be considered before visiting any expert technicians at certified workshops who understand more about how PCMs operate in cars so as fix all errors indicated above (losses). For POS, disconnect electrical connector, verify presence of battery voltage in B+ wire terminal, and check continuity to ground at black wire terminal. After removing the sensor, backprobe signal wire terminal with voltmeter. Touch it with a metal object and pull away fast; this should make voltmeter go to 5.0 volts then down to zero volts again. It must be replaced if the sensor does not respond as described above. Disconnect electrical connector then remove sensor for replacement.

Being an important component in the engine, the Camshaft Position sensor is responsible for monitoring engine speed and piston position and transmitting this information to the computer. It includes a rotating plate that has slots that gives engine speed and positions signals. The slits, through light-emitting diodes (LED) and photo-diodes, are converted into off-on pulses which are then transmitted to the PCM. In four-cylinder models as well as 3.3L V6 models, the Camshaft Position sensor is part of the distributor. To test the sensor, disconnect power from terminal 5 on electrical connector at bottom of distributor, check for battery voltage on terminal no. 5, and measure continuity to ground on terminal no. 6 using a suitable ohmmeter between the terminals). Remove the distributor cap and reconnect its connector; probe terminal no. 3 with one hand while someone slowly turns distributor shaft in reverse direction with other hand; look for a voltage change as rotor passes by contacts inside distributor block; repeat steps for terminal no. 4 (voltage should be present at both terminals). If it doesn't operate correctly, replace the distributor only because you can not fix individual pieces of it separately. On models equipped with 3.5L V6 engines, this sensor is installed on timing chain cover: it uses magnetism to detect absence of camshaft sprocket teeth through coil and core arrangement located opposite to these teeth. On '03-later models there are two sensors located on each lobe of front timing chain cover on top of each camshaft which looks like a flat small metal stick having many grooves inside it-such parts fit into pre-cut deep slots made around outside circumference where these lobes rotate near their tops; so if they do not align perfectly during assembly process then all next actions will lead us nowhere except situation when engine fails starting up instantly after igniting spark plugs causing explosion at once which in turn cannot be prevented too unless it is solved before time comes through carefully replacing these things without missing any single step. To find out whether the sensor is functioning correctly, remove the electrical connector and check the resistance across the terminals. If there is incorrect resistance value found on it, make sure you replace it with new one and inspect its wiring harnesses for broken wires.

For four-cylinder and 3.3L V6 models, the Crankshaft Position sensor is located at the rear of the engine on the transmission bellhousing. It detects gaps in the flywheel/driveplate gear teeth to determine crankshaft speed which is used by the PCM for engine misfire detection. Remove it from the transmission bellhousing and measure the resistance across its terminals to check the sensor. The resistance should be within a specified range for each engine type. If these values of resistance are not right then it should be replaced by a new one. Faulty wiring harness may be revealed if correct values have been observed in both aforementioned cases. If these are fine, but, then there is a need of diagnosing them before any repair work can be done by qualified facility in PCM. There are two Crankshaft Position sensors for 3.5L V6 models; The Crankshaft Position sensor (POS) mounted on aluminum oil pan section at rear of engine close to transmission bellhousing and The Crankshaft Position sensor (REF) located on aluminum oil pan section at front of engine below crankshaft pulley which serve as gaps detectors using permanent magnet, core and coil that vary voltage signals sent to PCM . These signals which include ignition timing, fuel synchronization and misfire detection are used by PCM . Measure and check this against specified range for REF, Crankshaft Position sensor where R denotes Resistance between terminals should be taken as reference value. If these values of resistance are not correct then it would require replacement with new one while checking also wiring harness for open circuits or damage too as an alternative option if need arises when everything seems alright with both wiring harness and properly functioning sensors being present must be considered before visiting any expert technicians at certified workshops who understand more about how PCMs operate in cars so as fix all errors indicated above (losses). For POS, disconnect electrical connector, verify presence of battery voltage in B+ wire terminal, and check continuity to ground at black wire terminal. After removing the sensor, backprobe signal wire terminal with voltmeter. Touch it with a metal object and pull away fast; this should make voltmeter go to 5.0 volts then down to zero volts again. It must be replaced if the sensor does not respond as described above. Disconnect electrical connector then remove sensor for replacement.