Electrical

Air Bag System Testing

The information in this procedure comes from the Porsche factory airbag system diagnostics procedure. Personally, I have not had the opportunity to use this …

Air Bag Warning Light Reset

I'm not sure who actually came up with this procedure originally. However, to my knowledge it first appeared in the 944 FAQ which is now maintained by Kevin …

Air Flow Meter (AFM) Operation and Testing

The following article provides a summary of the operation of the 944 Air Flow Meter (AFM), also commonly referred to as the Air Flow Sensor. Also, covered is…

Alarm System - Bypassing

Sometimes engine starting and running problems can be caused by a faulty alarm module (if the car is equipped with an alarm system). Since testing the alarm …

Alternator Replacement

Replacing the alternator in a 944 is not extremely difficult. However, it is somewhat time consuming since a large number of parts have to be removed to actu…

Checking Starter Operation

I personally don't recommend testing the starter while it is in the vehicle. Realize that the engine will turn during starter testing and you should not appl…

Cruise Control - General Information and Repair

Cruise control problems are fairly common in 944s. The most frequent problems include failing to engage, failing to maintain speed, and picking up a set amou…

Early 944 Fuse List

Electric Window Troubleshooting

When things go wrong with your electric windows, it can sometimes be frustrating to figure out the cause of the problem. This troubleshooting procedure is in…

Excessive Battery Discharge Rate

All 924s, 944s, and 968s use a BCI Group 41 size battery. That means that the dimensions of the battery are 11- 3/16" L x 6 - 7/8" W x 6 - 7/8" H. For a full…

Fuel Level Indication Problems / Repairs

Fuel level indication problems are generally caused by a problem with the gauge or the sending unit. Our discussion here will focus on isolating the cause of…

Gauges - Removing Early 944 Gauges

One of the hardest part of removing the gauges on an early 944 is disconnecting the speedometer cable from the back of the speedometer. To do this, the gauge…

Gauges - Removing Late 944 (1985.5 and newer) Gauge Cluster

Headlight Motor Removal, Cleaning, and Installation

If you are having problems with your headlights cycling up and down when you operate them, the problem is most likely a dirty electrical contact wheel inside…

Ignition Switch and Wiring Test

Bad ignition switches are becoming a more common cause of starting problems on 944s. So, take a look at your ignition switch and if it's cracked, it's likely…

Ignition Switch Replacement

The following ignition switch replacement procedure was authored by Dean Smith. I'd like to thank Dean for taking the time to write such a complete, detailed…

Late 944 Fuse List

Odometer Repair

<http://www.klaindustries.net>

Rear Hatch Defroster Troubleshooting and Repair

The rear hatch defroster grid is basically a big resistor. So, when the defroster is operating properly, with a voltmeter you will be able to measure +12 VDC…

Sensors and Gauges - Information, Troubleshooting, and Testing

Coolant Temperature Gauge Testing(#coolant)

Starter Removal and Installation

Stereo - Head Unit and Speaker Replacement Guide

Replacing the stereo head unit in a 944 is fairly straight forward. Any standard DIN head unit will fit. However, there are some minor issues which must be c…

Stereo - Rear Speaker Replacement

Rear stereo replacement in a 944 or 968 is a bit of a pain. However, it's just takes a little time and patience. Many folks will tell you that the rear quart…

Sunroof Component Testing

Testing and/or Replacing the Micro-Switch Between the Sun visors(#microswitch)