You can also program the instrument cluster on the 2004, 2005 and 2006 Pontiac GTO with our 16 pin USB ALDL cable as shown with the instrument cluster. USB-ALDL Cable User's Guide. Automatic Driver Installation. Manual Driver Installation.

About WinALDL is software to datalog on GM vehicles that use the old 160 baud rate. This includes but is not limited to vehicles using a 1227747 and 1227165 ECM. Most older TBI GM computers will speak this protocol. WinALDL does NOT speak to newer GM OBD1 vehicles that use 8192 baud communication. WinALDL is available from WinALDL was written several years ago.

It will work best on Windows XP or older operating systems, if available. You may need to use a VM or Windows XP compatibility mode on newer Windows7 systems in order for it to run 100% properly.

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WinALDL will work with both our ALDU1 and AutoProm. Setup There are a few setup tasks that need to be performed. • Ensure that your ALDU1 or AutoProm is assigned a COM port between 1 and 4.

Make sure you choose a port that does not conflict with system resources. (see ) • If you are using the AutoProm, ensure that it is set to pass-through *NOT* AutoProm mode. (see ) • On most 160 baud applications, you will need to set the switch to 10k mode on your AutoProm or ALDU1 • Set the COM port selection in WinALDL to match what it set up to on the USB driver under the control panel. • Set the baud rate to 4800 within the WinALDL program. • Select the ECM type in WinALDL which matches your ECM. • Make sure the ALDU1 is connected to the laptop prior to starting the software. • Turn your key off, connect the ALDU1 to the car, and start the software.

• Turn the car on, it should connect.

1982-1995 GM ALDL PC hardware and software for diagnostic code reading and real-time data logging on the cheap. Or at least a whack at it. It's a proprietary GM PWM TTL level Serial communications protocol. It was not standardized even loosely within GM divisions.

It varied greatly by model, nameplate, year, and even engine choice. ALDL is not always OBD 1 but OBD 1 was ALDL. OBD 1 was the 1991 California stab at standardization of automotive diagnostics prior to Federal adoption of the much more comprehensive SAE OBD II standards.

Mr Goodwrench used the Tech I and later the Tech II to communicate with these vehicles. If you can find a working Tech I or a real Tech II they can have more functionality than any aftermarket solution depending on your needs. The Tech I is all but extinct (I haven't seen one for sale in over 2 years). Most of us can't afford a real Tech II and those are getting scarce.

If I could afford a real Vertronix or HP Tech II I don't feel confident that I could weed out the Chinese counterfeits. There seem to be more poorly constructed Chinese knockoffs than the real thing now and they are priced the same or more. 12 terminal ALDL jack (OBD I) Repair parts with terminals. [A] ECM Ground [B) Diagnostic Enable [C] ECM to Air Switch Solenoid [D] CLCC (If used) 160 Baud Serial Data TX only (1982-1986 Carburettor Trucks) [E] 160 Baud TTL Serial Data TX only [F] ECM Driver or Vac Switch for TCC [G] Fuel Pump Prime [H] RWAL VSS [M] 8192 Baud TTL serial data TX & RX [/FONT] Not all positions are populated on all vehicles and usually only one serial data line is present.

1995 16 terminal ALDL Jack (OBD 1.5) This looks like 1996 and later J1962 OBD II jacks because it is physically the same jack. Electrically it is not the same. I would be sorely tempted to install the old ALDL jack if I owned a 1995 GM. Repair Parts with and [5] Ground [9] 8192 Baud bi-directional TTL serial data RX & TX [16]ECM + Power[/FONT] 'Paper clip' method The diagnostic lamp is called several different things. SES (Service Engine Soon) MIL (Malfunction Indicator Lamp) CEL (Check Engine Lamp) these acronyms all refer to the same lamp.

If it reliably lights during the bulb check, when the ignition is switched on, this method can probably be used. NOTE: This will not work with 1994 & 1995 OBD 1.5 jacks • With the ignition switched off. Jumper ALDL jack terminals A & B with a piece of stiff wire or an ALDL Test Key. • Further instructions and flash/blink code definitions by year/make/model here. PC Method • GM used 12 position Delphi Packard 12020043 ALDL diagnostic sockets on most US market vehicles from 1982-1994. • 160 baud data on terminal E (sometimes on terminal D) is uni-directional TX only.