Pcm wiring diagram - 2000 Volkswagen Golf

Thought you mite like some additional info.
DTC P0335
Circuit Description
The crankshaft position (CKP) sensor used on this engine is actually 2 sensors within a single housing. There are separate power, ground (reference low) and signal circuits connecting both sensors to the powertrain control module (PCM). The PCM supplies 12 volts to the CKP sensors.
The PCM can use three different modes of decoding crankshaft position. During normal operation, the PCM performs an Angle Based calculation using both signals to determine crankshaft position. The dual sensor allows the engine to run even if one signal is lost. If either signal is lost, the PCM switches to a Time Based method of calculating crankshaft position. If the system is operating in Time A mode, the PCM is using only the signal from sensor A. Time B indicates that the sensor B signal is being used. If the lost signal is restored, the PCM will continue to operate in Time A or B mode for the remainder of the current key cycle. The PCM will automatically revert back to the Angle mode on the next start up if the fault is not present. The scan tool can display the Crank Position Sensing Decode Mode.

Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info . under system click on engine ,then under subsystem click on fuel controls . First off click wiring diagrams not TSB's . Click the search button then the blue link . Scroll down to the third diagram . Good luck

yes you can replace PCM with same year model and motor
numbers must match
some online , US Ebay or a wrecker

http://www.acrautos.com/lumina.html

for less issues
after fitting requires the correct diagnostic tool to link up
air bag, abs ,ignition ,immobilizer and other modules,

in most cases the internal wireing of a manufactures car
PCM is not released to the public

....only replacement PCMs

a full factory repair manual of a lumina
may will have limited wiring diagram

Video's on youtube ! The fans are controlled by the PCM - engine computer . PCM energizes two relays . Find yourself a wiring diagram . Buy a volt meter . Watch a few video's on youtube on basic automotive electrical testing , how to read an use a wiring diagram . Check for B+ voltage at the relays at pin's 30 & 85 . If you pull the relay out of it's socket in the fuse box an look on the bottom you will see four set's of numbers . 30,87 this the load side . Being the fans are the load . 30 should have B+ voltage . 85 & 86 are the control side , one should have B+ voltage an the other the PCM controls by give a ground inside the PCM by a transistor . http://www.bbbind.com/free_tsb.html wiring diagram ! How To Test Relays EricTheCarGuy

Your question is a little broad. Can you tell us the problem? If your having a problem with ignition or fuel system, something like that, I can help with wiring diagrams. If you need voltage and ground for pcm, I can't help with that. Can you narrow the problem down, a little?

To post a diagram of every little wire that comes off the pcm and show where it goes, is too much for me.

It appears from a wiring diagram that there is no ignition control module. The ignition coils' primary circuits are grounded through the PCM. And the wires to the sensors are all from the PCM.

Here is a link if you want to see all your wiring diagrams. I found the above information under System: engine; Subsystem: fuel controls.

Free wiring diagrams and TSB's for every make and model:
http://www.bbbind.com/technical.html

We do not have any wiring diagrams available for download due to copyright laws.

Ground points are in different locations throughout wiring harness. If you had any work done to engine it is very possible to have missed one of the grounding eyelets during the process of putting things together. Check along wiring harness in any area you can see or reach to try to locate any loose or disconnected ground looks.

black wire is the 5 volt reference from PCM to IAT. Tan is IAT data signal to PCM. See diagram below.

GO TO AUTO ZONE - ADVANCE AUTO - OREILLYS. BUY A HAYNES REPAIR MANUAL.IT HAS WIRING DIAGRAM FOR EACH CIRCUIT.LIKE HEATING + AC CIRCUITS INTERIOR LIGHTS EXTERIOR LIGHTS STARTING + CHARGING SYSTEM WARNING DASH SYSTEM POWER DOORS + POWER WINDOWS + RADIO SYSTEM + CRUISE CONTROL + WINDSHIELD WIPER SYSTEM.ALSO HAS WIRING DIAGRAM FOR ALL THE PCM SENSORS.AND THE PCM ALSO.

Are you looking for a specific wire found there or just the entire schematic?