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Altima Nissan Altima Sedan Discussion Forum

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Old 06-01-2007, 08:12 AM
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Default code po500 and code po136

Hi People...........I have a 1996 nissan altima gxe. The speedometer and odometer work every so often. I have replaced the vss and checked the wiring. When the speedometer and odometer do work, the check engine light comes on and sets codes po500 and po136.....any help will be appreciated......:)
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Old 06-01-2007, 08:23 AM
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NissanTech NissanTech is offline
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Check the screws behind the speedometer head. The screws are used as connectors for the speedo head. Sometimes the screws come loose and set code P0500.

The other code P0136 is for the rear O2 sensor, and you most likely have to replaced the sensor to repair the problem.
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Old 08-08-2019, 04:58 PM
rapaulino rapaulino is offline
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1999 Altima Sedan
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Default Intermittent Speedometer on a 1999 Altima (error code P0500)

Hi everyone. I have the same problem with my 1999 altima. The VSS has been replaced 3 times and the problem still present. The screws adjustment might the solution since the problem is intermittent (comes and goes). I would like to know if anyone solve this problem by tightening the screws on the instrument cluster.
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Old 08-08-2019, 10:51 PM
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smj999smj smj999smj is offline
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Nissan had a lot of problems in the mid to late 90s with the threaded inserts in the back of the speedo head (the ones that the mounting bolts that contact the printed circuit thread into) developing cracks, which caused the bolts to loosen-up at the time. I worked with a Nissan service rep on a similar issue on a 1995 Sentra that would throw the P0500 code on a somewhat regular basis. He brought out a Japanese engineer who literally cut right through the main harness so he could take the instrument cluster/harness connectors and about 8" of wiring harness with him for testing. Of course, he installed a new cluster and harness connectors and soldered all of the wires on the vehicle. Tightening the screws can fix the problem for a given amount of time; just what that amount of time is, one never knows! It could be days, months...years! The proper fix is to replace the speedometer head with a new one. As the years go by and many of these speedo heads get discontinued, this gets harder to do.
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code, po136, po500

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