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Help with Code P0500

Old Feb 16, 2015 | 04:38 PM
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Default Help with Code P0500

I recently got s 03 350z and its throwing the code P0500 for the vehicle speed sensor A. I'm trying to figure out which sensor this is so I can order a new one. I can't figure out if it's the one on the tranny or one by the wheels. Please help me. Is this what I need? http://m.autozone.com/autozone-mobile/en/parts/Duralast-Vehicle-Transmission-Speed-Sensor/_/N-jklthZ6wmy6?id=257686

Last edited by DieselandZ; Feb 16, 2015 at 10:13 PM.
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Old Feb 17, 2015 | 07:01 PM
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Update. Now it's not reading a code but the speedo and digi mph gauge aren't working and the abs and VDC light are on. Please help.
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Old Feb 17, 2015 | 09:07 PM
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A P0500 has a few possible causes:

• Harness or connectors (The CAN communication line is open or shorted)
• Harness or connectors (The vehicle speed signal circuit is open or shorted)
• Wheel sensor
• Unified meter and A/C amp.
• ABS actuator and electric unit (control unit) (models without VDC)
• VDC/TCS/ABS control unit (models with VDC)

If you're not seeing a code with a generic scanner, the code may be set in the ABS. Unfortunately, you're probably going to need to pay either the dealer or a shop with an advanced scanner (Snap-On Verus Pro, etc...) for diag.
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Old Feb 17, 2015 | 10:21 PM
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Originally Posted by i8acobra
A P0500 has a few possible causes:

• Harness or connectors (The CAN communication line is open or shorted)
• Harness or connectors (The vehicle speed signal circuit is open or shorted)
• Wheel sensor
• Unified meter and A/C amp.
• ABS actuator and electric unit (control unit) (models without VDC)
• VDC/TCS/ABS control unit (models with VDC)

If you're not seeing a code with a generic scanner, the code may be set in the ABS. Unfortunately, you're probably going to need to pay either the dealer or a shop with an advanced scanner (Snap-On Verus Pro, etc...) for diag.
I looked under it and the speed sensor on the tranny was caked with sand and oil so I believe the sensor is fried. Could that be the cause of the speedo not working? It is no longing throwing any code.
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Old Feb 17, 2015 | 11:15 PM
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No. That's your crank position sensor.
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Old Feb 17, 2015 | 11:40 PM
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Well damn. Guess I'll invest in an obd abs scanner tomorrow.
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Old Feb 18, 2015 | 10:23 AM
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These are the codes that came up with the obd abs scanner U1000, C1136, C1156, P0303. Anyone have any advice to what my next steps should be?
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Old Feb 18, 2015 | 11:08 AM
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ABS controller. U1000 is a CAN communication code, C1136 is a speed sensor code, C1156 is a steering angle sensor code. Most likely, the ABS unit has an internal fault causing a loss of communication.

The P0303 is a cylinder 3 misfire. Pull out the middle coil on the passenger's side and check for oil on the end of the coil. If there's oil, you need a valve cover. If no oil, pull the plug. If it's got a big gap, replace your plugs.
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Old Feb 18, 2015 | 11:42 AM
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Is it worth trying to fix the abs unit of just replacing it?
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Old Feb 18, 2015 | 05:09 PM
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Originally Posted by i8acobra
ABS controller. U1000 is a CAN communication code, C1136 is a speed sensor code, C1156 is a steering angle sensor code. Most likely, the ABS unit has an internal fault causing a loss of communication.

The P0303 is a cylinder 3 misfire. Pull out the middle coil on the passenger's side and check for oil on the end of the coil. If there's oil, you need a valve cover. If no oil, pull the plug. If it's got a big gap, replace your plugs.
This what your talkin bout?
http://www.slidegood.com/nissan/03-nissan-350z-abs-control-module-5780
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Old Feb 18, 2015 | 07:42 PM
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Looks like it.
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Old Feb 18, 2015 | 08:15 PM
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Originally Posted by i8acobra
Looks like it.
Thanks so much for your help. I'm new to the car scene. I've been building and driving diesel trucks since I started driving and tryin to play catch up and learn more bout cars.

Last edited by DieselandZ; Feb 18, 2015 at 08:16 PM.
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Old Mar 4, 2015 | 10:18 AM
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does anyone know if this loose ground could be the problem? Where is it suppose to connect?



I found it while looking at the rear speed sensors.





Looks like it is a ground point to the frame right above the exhaust tips
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Old Mar 4, 2015 | 10:43 AM
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it connects to one of the bolts on the last flange, and no it wont cause any codes
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Old Mar 4, 2015 | 10:45 AM
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also did you find the sensors, they are on the back of the diff by the shaft ears
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Old Mar 4, 2015 | 11:29 AM
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Yeah. The were plugged in and looked fine. Anyone have a diagram to where the abs module goes?
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Old Mar 4, 2015 | 04:53 PM
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All fixed. Lights off and speedo working!! Was the ABS computer.
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Old Mar 4, 2015 | 05:32 PM
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Glad the computer fixed it. Usually, a U1000 code stored in just one module means that module is bad.

That wire just grounds your exhaust system. Hot gasses flowing through the pipes can build up a static charge. In the last pic, the nut that the wire is hanging near... It goes on that stud.

Did you get your cyl. 3 misfire sorted out?
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Old Mar 4, 2015 | 08:07 PM
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I believe its a loose cam sensor missing the clip in piece on the pigtail. trying to track down just the pigtail.

Last edited by DieselandZ; Mar 4, 2015 at 08:08 PM.
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Old Mar 5, 2015 | 07:04 AM
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You mean the one with the green lock?

http://www.wiringspecialties.com/vq35de1.html
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