HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Wiring schematics

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Wiring schematics

Post  fliermike45 on Wed Jan 19, 2011 9:32 am

I have the Porsche factory workshop manual with the electrical wiring schematics. I need some help with understanding the link blocks and labeling system. Does a legend or description exist as I can't find one in the WS manual?

I have just removed the Engine computer and its harness, there were two other connectors in addition to the main ECU connector that I disconnected, Would like to identify the function of those connectors.

Help please.

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Re: Wiring schematics

Post  944-LT1 on Wed Jan 19, 2011 10:41 am

I believe all the info needed to read the schematic is in the manual. But yes, it is not easy to decipher what they wrote. The newer 996/boxster schematics are so much easier to read.

Since it sounds like you will be doing alot of wiring, it may be a good idea to put the year of the 944 and engine in your sig so that people know which schematic to reference.

As far as the connectors you are talking about, I wouldnt know until you posted a picture of the connector or the connector number. A few wire colors would help tremendously!

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Schematic

Post  fliermike45 on Wed Jan 19, 2011 2:17 pm

Thanks for your reply 944-LT1, I have explored the WS Manual schematic for the 1988 944. Its the labeling and links that I have a problem understanding. A legend would help. What does a small box containing a letter and number mean?

There are two connectors that I had to disconnect in the passenger footwell to get the main loom out.

#1 A two pin connector with two wires, Brown and brown/blue

#2 A 8 pin connector 4 wires on the engine side, 7 wires on the chassis side

White/yellow White/yellow
Black 7 side only
Black/green Black/green
Red/brown 7 side only
Blue/black 7 side only
Green/black Green/black
White/green White/green




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Re: Wiring schematics

Post  944-LT1 on Wed Jan 19, 2011 4:35 pm

A small rectangular box with say F46 means go to row 46 column F to find the wire. So say on page 4 of the schematic you are following a red/black wire and then all of a sudden the wire ends at row 6 and column M and the box says P55....so scroll down until you see 55 on the vertical axis. Then find P on the horizontal axis. Thats were the wire picks back up.

Theres no legend for symbols but Porsche follows deutsch electrical standards so if you have a problem with a symbol, check this place out...... Electrical Schematic Symbols

For example, dashed and dotted lines are to designate a particular unit like the fuse block. Fat black lines are to designate harness connectors. Circles with an X in them are light bulbs and triangles with 2 Z's are diodes and so forth. Usually, as far as wire colors and gorunding points etc., are in a legend at the bottom of certain schematic pages.

Ill have to check the schematic for those connectors.

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Schematic

Post  fliermike45 on Wed Jan 19, 2011 4:48 pm

Many thanks, now it begins to make sense.

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Re: Wiring schematics

Post  944-LT1 on Wed Jan 19, 2011 5:22 pm

fliermike45 wrote:
#1 A two pin connector with two wires, Brown and brown/blue

#2 A 8 pin connector 4 wires on the engine side, 7 wires on the chassis side

White/yellow White/yellow
Black 7 side only
Black/green Black/green
Red/brown 7 side only
Blue/black 7 side only
Green/black Green/black
White/green White/green
I think the 8pin connector is the T1 connector. Looks to me like White/Yellow is for the Oil level warning light. Green/Black is for the crankcase ventilation heating. Brown/Blue and Brown are for the "Codes" connector. These are not going to be used anymore. But, you will be able to use the T1 connector later on for Tach hookup.

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Schematic

Post  fliermike45 on Wed Jan 19, 2011 9:42 pm

Thanks very much for that help 944-LT1, now you gave me the heads up on the "codes" I can find my way around, I need to print out the full set of schematics so that I can track the codes easily.

Got the engine out today, every bolt on this car was factory tight, gave me a good work out.
Dropped the engine on the floor then lifted the car high enough to clear engine with the crane

Worse job was getting to the brake booster nuts until I realised that the foam insulation is marked at the nut positions, just make a cirular cut and viola!

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Re: Wiring schematics

Post  944-LT1 on Wed Jan 19, 2011 11:58 pm

No problem. Very Happy

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