The Honda civic crankshaft position sensor is a part that’s situated under your timing assembly and an installed to the engine beside the crankshaft snout. This sensor is mostly responsible for informing her Honda ECU the the current engine speed, or RPM. Without this sensor the ECU will not be able to operate the engine, and also it might shut off unexpectedly.

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This sensor is also known together the Honda Civic Crankshaft rate fluctuation sensor together well, and should not be confused with the referral sensor inside your distributor. For details on converting your VTEC Honda to run on a distributorless ignition, examine our handy guide here.

Today we are looking at the OBDII trouble code P0335 in a 1999 Honda public EX and also showing you just how to change or business your Honda public crankshaft place sensor. If your civic is one automatic your 1.6 D16 engine can shut turn off at speed, leaving girlfriend without strength steering or brake assist.

If your malfunction Indicator desk lamp (MIL) is lit and showing a P0335 problem code, you have to stop driving her Civic immediately until you organization it. The D16 crankshaft sensor is an installed near the crank gear and also is draft to review the high and low spots. This gives the ECU v the proper signal forced to orchestrate combustion.

This EX crankshaft position sensor might be a different part number than the no VTEC version of the Civic, but the replacement procedure is the same.

This Honda civic has a OBDII DTC trouble password of P0335 Honda’s specific language because that this trouble code is Crank Sensor Malfunction. If you have a no start public or a Honda that’s not starting, try checking her crank obelisk position sensor from the loom situated behind the front timing cover.

Where is Honda civic crank position sensor located?

Like most SOHC civic engines, the crank engine sensor is an installed to the prior oil pump assembly. The sensor is placed to read the this on her crankshaft gear. This hall result sensor is just how your Honda public ECU determines engine speed and also it’s linked by method of a two pin connector the runs to the earlier of her engine.


If you room planning to readjust your Honda civic timing belt whenever soon, it can be a great idea to complete both tasks at the exact same time. Because replacing this public crankshaft position sensor is relatively easy as soon as you have the timing assembly apart, you will not need an ext work to remove it.

If girlfriend do must raise your public to remove your civic crankshaft sensor rather of check it, make certain to lift and secure your automobile carefully.

When increasing your Honda Civic, always use the appropriate safety measures and also use extreme caution. Performing a Honda Civic crankshaft place sensor check is straightforward using a multimeter. If you don’t understand what a multimeter is, check our write-up here for part tips.


What is 1.6 liter Honda civic crankshaft place sensor component number?

This civic EX crankshaft sensor is component number 37500-P2F-A01 and also it’s placed to the prior oil pump by a 10mm bolt. If your public is not beginning and you have currently tested your crankshaft sensor, skip front to the removal procedure of the guide.

What is the public EK crankshaft fluctuation sensor wiring schematic?

We’ll be experimentation your CKF in her Honda civic EK by experimentation for power and ground, to make sure that it’s being powered. If you do have actually power and ground at the wires in question, possibilities are you have a rest or intermittent wiring issue, or your sensor is failing.


To test your CKF because that power, disconnect the sensor and use her multimeter come probe pen 2. Pen 2 is a yellow/black wire that powers your crank sensor in her Civic. Obtain into her Civic and insert the key into the ignition, and also turn to the “ON” position.

Touch the black color lead of her multimeter come the negative probe of your battery and also gently test the former of the ENGINE side of the harness. Girlfriend should have power in ~ this wire, which way that your key relay is effectively powering her sensor.

How perform I check Honda civic crankshaft fluctuation sensor?

The testing procedure to measure the inner resistance of her hall effect Honda public CKF sensor is easy and also straightforward. If her ignition is turned come the “ON” position, walk ahead and also remove the crucial now and also turn her ignition off.

Now making use of your multimeter, you space measuring pin 1 and also PIN 3 for internal resistance. In between the terminal 1 and terminal 3, you need to have in between 1.6 and 3.2 Ω. If your internal resistance checks out, move onto trial and error for continuity floor in the next segment of our DIY guide on trial and error your Honda public crankshaft position sensor.

Testing your civic CKF for continuity

The following step in testing your crankshaft sensor is to inspect for continuity between your Civic’s chassis ground and the CKF sensor in ~ both terminal 3 and terminal 1. Utilizing your multimeter, you should make certain that there’s continuity between PIN 1 and your chassis ground, and also PIN 3 and also the ground. civic crankshaft fluctuation sensor checks the end okay yet inspect engine light won’t go away

This is a common issue and usually connected to damage in your ECU harness. To examine this, you will certainly be repeating the interior resistance test, but AT THE ECU this time. Utilizing your multimeter, you will certainly be measuring pin 1 and also PIN 11 ~ above the 31 pin connector on your ECU.


Checking the Crankshaft position Sensor because that Power

Insert the vital into the ignition and turn to the “ON” position, yet do not start the vehicle. Unplug your D17 Honda civic crankshaft position sensor connector.

Use an expansion wire indigenous the an unfavorable post on your battery, and also connect it come the black color lead of your multimeter. Gently probe the front of the crankshaft place sensor at pin C or the yellow/black wire. Friend are in search of 12 volts DC below at this wire.

Next examine PIN B or the middle wire for ground through reversing the wires and also checking the prior of the brown/yellow wire. Never force the guideline of your multimeter probe down into the slot of your connector.

If you have power and ground at these two wires, and also there’s no sign of any damage to her signal cable (PIN A – BLUE) then possibilities are girlfriend will have to replace her crankshaft place sensor.

If her sensor is not working correctly, friend will need to inspect the problem of her Honda public main relay.


Where do I check public ECU for CKF signal?

If her crankshaft fluctuation sensor tests an excellent and seems okay at the plug, the following step is to trace earlier the SIGNAL wires for her CKF sensor. These run connector C on your SOHC Honda ECU, or the 31 pin key plug located at the ECU harness.


Check her passenger side kickpanel come trace ago the wiring native the 31 pen connector.


There are four signal wires friend will want to examine when her Honda civic won’t start. This are detailed below in the wiring schematic, and also require friend to test the continuity in between the sensor side and your ECU.


The 4 wires in concern are highlighted, and also broken the end for you here;

PIN 1 – color BLUE / RED – CKF p SensorPIN 3 – shade GREEN – TDC SensorPIN 4 – shade YELLOW – CYP SensorPIN 2 – color BLUE – CKP Sensor – interior to public distributor

Intermittent wiring concerns can be frustrating, so be patience to locate your issue. Remember to examine your wiring and the ECU wiring for any frayed wires or exposed wiring that may be topic to cable rot or damage. If friend detect any suspicious part of wiring, make sure to snip out very closely to remove and rewire.

Always use same gauge and style of wire once replacing your damaged section of wiring harness in your Civic.

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To clean your P0335 trouble code, change your crankshaft fluctuation sensor and use a scan device to remove the code from her ECU.

Have any type of questions around our How To test a Honda public Crankshaft position Sensor guide? let us understand below!