The camshaft position sensor is within the distributor on her 3.3L V6 Nissan Frontier, Pathfinder, and also Xterra. That produces two place signals and also both deserve to be conveniently tested v an LED light (you don"t need any kind of expensive test equipment).
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And in this indict I"ll explain how to do this LED irradiate test. V your test outcomes you"ll be able to find the end if camshaft place sensor is bad or not.
This tutorial uses to the complying with vehicles:3.3L Infiniti QX-4: 1997, 1998, 1999, 2000.3.3L Nissan Frontier: 1999, 2000, 2001, 2002, 2003, 2004.3.3L Nissan Quest and Mercury Villager: 1999, 2000, 2001, 2002.3.3L Nissan Pathfinder: 1996, 1997, 1998, 1999, 2000.3.3L Nissan Xterra: 2000, 2001, 2002, 2003, 2004.
NOTE: friend can uncover the ignition coil and also power transistor test here: Power Transistor Test and also Ignition Coil check 3.3L Nissan (1996-2004).
You can find the ignition mechanism wiring diagram because that the 3.3L Nissan Frontier, Xterra, Pathfinder (QX-4) here:
Important Tips and also Suggestions
TIP 1: The tests the you are about to do, through the LED light, require that you rotate the engine by hand. To it is in a bit more specific, girlfriend cannot usage the starter engine to crank the engine to perform TEST 3 and also TEST 4.
TIP 2: The fuel mechanism must be disabled prior to you execute TEST 3 and also TEST 4. Friend can quickly do this by removing the fuel pump fuse.
The fuel pump fuse location:1997-2000 3.3L Infiniti QX-4: fuse #17 of the dash fuse box.1999-2002 3.3L Mercury Villager: fuse #43 of the engine compartment fuse box.1999-2004 3.3L Nissan Frontier: fuse #1 that the dash fuse box.1999-2002 3.3L Nissan Quest: fuse #43 the the engine compartment fuse box.1996-2000 3.3L Nissan Pathfinder: fuse #17 the the dash fuse box.2000-2004 3.3L Nissan Xterra: fuse #1 the the dash fuse box.
TIP 3: prior to you check the camshaft place sensor, you must an initial test the ignition coil. If the ignition coil sparks climate you deserve to conclude the the camshaft position sensor is an excellent and work correctly.
The ignition coil check is not hard to and also you can find it here: power Transistor Test and Ignition Coil test 3.3L Nissan (1996-2004).
TIP 4: If it turns out that the camshaft place sensor is bad, you"re gonna" have to buy the whole distributor, due to the fact that Nissan in every its wisdom, does no license any type of of the components to be marketed separately.
How go The Camshaft position Sensor Work?
Here"s a really brief summary of how the camshaft position (CMP) sensor works:The camshaft position sensor is situated inside the distributor and also is component of the strength transistor assembly.The cam sensor assembly is really a crankshaft position sensor, since the fuel injection computer uses it to regulate the creation of spark (thru") the power transistor and ignition coil.Now, as soon as you revolve the vital and crank the engine (to begin it), the video camer sensor/power transistor obtain power thru" the cable labeled v the number 5.As the engine turns, the video camer sensor assembly start to create two particular position signals the it sends directly to the computer. One signal is dubbed the 1° POS signal and also the other is called the 120° REF signal.When the computer gets this two video camer signals, the does its small song and also dance and also shoots one activation signal to the strength transistor.When the power transistor it s okay its activation signal indigenous the fuel injection computer, it currently starts to move the ignition coil"s power ON and also OFF. This ON/OFF activity is what makes the ignition coil spark and also is described as the switching signal.
When the camshaft place sensor fails on her 3.3L Nissan Frontier, Pathfinder, or Xterra; the engine is no going come start because of a lack of spark.
You"re likewise going to see a P0340 trouble code registered in the fuel injection computer. This code will light increase the examine engine light on her Nissan tool cluster.
Ignition system Diagnostic hand-operated Download
If you"d choose to have accessibility to a wiring diagram, ignition component connector pin-outs, and also the whole testing procedure (for a no-start brought about by a poor CMP sensor) in one place, climate take a look in ~ the following diagnostic manuals in downloadable PDF format:
1999-2004 3.3L Frontier Ignition mechanism No-Start trouble Diagnostic Manual
All of the diagnostic info you need in one ar to diagnose a no-start trouble caused by the power transistor (ignition control module), or the ignition coil, or the camshaft place sensor.
Also consists of diagnostic tests to discover out if the ignition system is causing a misfire problem.
Diagnostic hand-operated comes with:Wiring diagram.Component pen outs.Connector pin outs.Complete step-by-step experimentation instructions.31 pages.
The illustrations in the diagnostic manual are printer friendly!
1996-2000 3.3L Pathfinder Ignition device No-Start trouble Diagnostic Manual
All of the diagnostic details you require in one location to diagnose a no-start problem caused through the power transistor (ignition regulate module), or the ignition coil, or the camshaft position sensor.
Also consists of diagnostic exam to find out if the ignition system is resulting in a misfire problem.
Diagnostic hand-operated comes with:Wiring diagram.Component pin outs.Connector pin outs.Complete step-by-step trial and error instructions.31 pages.
The illustrations in the diagnostic manual are press friendly!
1999-2002 3.3L Quest1999-2002 3.3L VillagerIgnition mechanism No-Start difficulty Diagnostic Manual
All that the diagnostic info you need in one place to diagnose a no-start difficulty caused through the power transistor (ignition manage module), or the ignition coil, or the camshaft place sensor.
Also contains diagnostic tests to find out if the ignition system is causing a misfire problem.
Diagnostic manual comes with:Wiring diagram.Component pen outs.Connector pen outs.Complete step-by-step testing instructions.31 pages.
The illustrations in the diagnostic hands-on are press friendly!
2000-2004 3.3L XTerra Ignition mechanism No-Start difficulty Diagnostic Manual
All that the diagnostic information you need in one place to diagnose a no-start problem caused by the strength transistor (ignition regulate module), or the ignition coil, or the camshaft place sensor.
Also contains diagnostic tests to discover out if the ignition device is resulting in a misfire problem.
Diagnostic hands-on comes with:Wiring diagram.Component pen outs.Connector pin outs.Complete step-by-step testing instructions.31 pages.
The illustrations in the diagnostic hand-operated are printer friendly!
TEST 1: Making sure The Camshaft place Sensor Is obtaining Power
In this an initial test we"re gonna" make sure that the camshaft position sensor is obtaining 10 come 12 Volts.
The wire the feeds these 12 Volts to the camshaft place sensor is the one labeled with the number 5.
On the Frontier and Xterra, this wire is the black with pink stripe (BLK/PNK) cable of the distributor"s 6-wire electrical connector.
On the Quest, QX-4, Pathfinder, and also Villager; this wire is the black with white stripe (BLK/WHT) wire of the distributor"s 6-wire electrical connector.
If these 12 Volts are current then the next step is to make certain the camshaft place sensor is obtaining Ground.
These room the check steps:
Your multimeter should register 10 come 12 Volts DC.
Let"s research your test result:
CASE 1: her multimeter registered 10 to 12 Volts. This is the correct check result.
This result confirms that the camshaft place sensor is gaining power. The next step is come make sure that it"s acquiring Ground. Go to: check 2: Making sure The video camer Sensor Is acquiring Ground.
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CASE 2: her multimeter DID no register 10 to 12 Volts. Without this voltage the camshaft place sensor will certainly not function.
Your following step find out why this voltage is absent and fix the problem. The following ignition mechanism wiring diagrams will help you trace down the problem: