BaaV9OVrve4/0.jpg' alt='Aldl Software' title='Aldl Software' />Gm Aldl SoftwareTHE MOST ADVANCED SCAN TOOL OFFERED BY MAC TOOLS Extremely fast diagnostic software built into an Android tablet Wireless communication to the vehicle. Diagnostic Software. Driver software for all of our USB products VCP Drivers http ALDL OBD1 software for our ALDL cables. Onboard diagnostics OBD is an automotive term referring to a vehicles selfdiagnostic and reporting capability. OBD systems give the vehicle owner or repair. Full line catalog of Industrial controls including pressure gages, manometers, pressureswitches, transmitters, flowmeters, flowswitches, pitot tubes, anemometers. ALDL Information for the VN VP Holden Commodore. The VN Commodores 6 pin ALDL Assembly Line Data Link, or Diagnostic Link connector is different to the North. M T2 c0E1M2S kKKuKtOar VSCoBfmtDwcaKrkes zL8L rC f. U v 6A alDl 8 CrSiWg1hjt Wsi XrMeFsweor 9vxeCdC. W 4 tMra vdqe Z PwwiUt FhY XIgnlf 8i8nVi3t4eY qP1r1e 13A glIg3e. Are You Ready to Tune This website is dedicated to helping you learn how to tune your own LT1 car computer PCM, using the popular and inexpensive TunerCat software. Download TunerPro. Current Version 5. Download 16. 3 MB Release Date August 29, 2017 Registration 0 USD Free Donate Download TunerPro RT. GENUINE PCtovehicle interface compatible with multiple software applications Class I Bluetooth provides up to 100 feet of wireless freedom. The aldl is a little connector that is hooked up to your throttle body through the IAC and the IAC is how the computer controls the idle speed on its own, and you. ALDL Information for the VN VP Holden Commodore. The VN Commodores 6 pin ALDL Assembly Line Data Link, or Diagnostic Link connector is different to the. North American 1. ALDL connector. the JE and LD used the 1. Commodores used a 1. OBD II style connector. This document describes how to use the ALDL feature on the VN Commodore. ALDL information into the serial port of your PC. D21204BC04F9D2BF955' alt='Aldl Software' title='Aldl Software' />Free software is available to display this information. Older technical information on the 1. ALDL format and. newer information is available here. ALDL emulator. Some of this information may also apply to other GM and Nissan vehicles that use. ECU in set to. vehicle service mode described later. The VN Commodore ALDL Connector and Signals. The first Holden V6 Commodore to have an. ALDL connector was the VN model introduced in late 1. This model used a part number 1. ECU. Note that the 8. LD Holden Astra, Nissan Pulsar and the JDJE Holden Camira. The ALDL connector is located underneath the glove compartment left hand side on LHD vehicles. It is generally just tucked into the trim where service personnel can reach it easily. These. service personnel use a commercial diagnostic device called a Tech 1 that plugs into the ALDL connector. Tech 1 can decode and display the data sent out from the ECU through the ALDL connector. The VNs ALDL connector is a 6 point female socket arranged as shown in the diagram. The rows of pins are at 4. G to B is 1. 2 mm 3 x 4 mm. The rows of pins are at 6. D to C is 6 mm. The GM Tech 1 mating connector is part number TA0. A the Tech 1 is a diagnostic device used by GM technicians. Note Gregorys Service and Repair manual No. We have used the lettering shown here because it corresponds to the alternative 1. ALDL connector. on the JE, LD lettering found on later GM vehicles. The function of each pin is described below. The points that the ALDL connector go. Pin Holden VN ALDL Connector Pinouts Function Tech 1 pin ECUvehicle, loom colour. Earth A ECU A1. D1361. 0 Black. Diagnostic test terminal B ECU A9 WhiteBlack. Torque converter clutch F ECU A7, TCC GreyRed. Check engine light CEL E ECU A5, CEL lamp Brownwhite. Fuel pump test G Oil pressurefuel pump Violet. H ECU A6 Pink ALDL Modes. Nothing is normally connected to the ALDL connector, and the ECU runs in normal mode. There are three other modes that are available. Two are diagnostic modes and a third is a limp home mode. One of the diagnostic modes flashing error mode. ECU. To place the ECU in a particular mode a resistor is placed between pins A and B. The value of this resistor, as shown below, determines the mode. In the two diagnostic modes the data is output by the ECU to pin E on the ALDL connector. The data is also displayed on the check engine lamp CEL, which is the dashboard lamp showing. ALDL Mode Selection ECU A9. Resistor Voltage Mode. V Normal operation. V Vehicle service mode Tech 1 mode described below. V Backup mode limp home mode. V flashing error code CEL mode. Note that the flashing error code mode is usually selected by shorting pins A and B with. The ECU actually uses the resistance value noted above to create a voltage. The voltage that should be measured at Tech 1 pin B or ECU A 9. Voltage column above. The data on pin E, when the check engine lamp is functioning correctly. Volts. The ECU actually pulls ECU pin A5 connected to. ALDL pin E low ie. Volts to turn the Check Engine Lamp on. When the lamp. is OFF, ALDL pin E is at 1. Volts. In the Vehicle Service Mode the data stream is at 1. BPS, also called baud. The check engine light should dimly and. GMs different ALDL Data Formats. GM has used at least two different diagnostic data streams from their ECU. The P4 ECU, as found on the VN Commodore, uses an unconventional 1. Pulse Width Modulation, or PWM, scheme. It is unconventional in that it does not correspond to any existing PC standard. The GM P4 ECUs with the SXR UART driver chip, uses a conventional data. UART has a chance of reading. The data rate, at 8,1. PC can be set to a close enough rate. Tx and Rx data streams are multiplexed ie. IO wire. This 8,1. ALDL Message Format. The message size for the VN V6 Automatic Commodore is 2. SYNC character 2. The technical details of GMs 1. ALDL data stream is further described here. The content of the VN Commodores data stream is described in the table below showing the. Byte Name Description. MW2 Mode Word B2EST mode, B6Hi. B345MODE, B3BACKUP, B4DIAGNOSTIC, B5ALDL. PROMIDA PROM ID MSB. PROMIDB PROM ID LSB. ISSPMP IAC motors current position. COOLDEGA Coolant temperature, temp in degrees C n x 0. FILTMPH Vehicle Speed. MAP sensor voltage 2. Volts. 8 NTRPMX Engine speed, RPM n x 2. ADTHROT TPS Throttle Position Sensor voltage 2. Volts. 1. 0 Injector flow rate 1. MAT Manifold air temperature, temp in degrees C is n x 0. MALFFLG1 Malfunction flag word 1. MALFFLG2 Malfunction flag word 2. MALFFLG3 Malfunction flag word 3. BLM Block Learn Multiplier. ADO2. AF Oxygen sensor voltage. MCUINST MCU input status word, B0parkneutral, B1rans. OT, B7AC req. 1. ADBAT Battery Voltage times 1. Integrator. 2. 0 Output word, B0Fan relay, B1AC clutch, B2Torque Conv. Clutch, B4closed loop status. NOT checked. . The above information was calculated with the aid of the. DIACOM hardware and software program and an. ALDL data stream emulator I wrote for just this purpose. Some of the information has been researched from. I initially assumed the VN information was similar to a Chevrolet Multiport Fuel Injection System 1. The names for some of the data bytes is also derived from these sources. Flashing Error Codes. CEL Check engine Lamp or flashing error code mode, displays a fault code as a series of. Count the number of flashes to get a digit. Each. fault code is made up of two digits separated by a 1. There is a 3. 2 second. For example, a fault code of 1. NO fault, fault code is made. Trouble codes listed numerically. Code Explanation. No spark pulses at CPU or else good system, no codes. Oxygen sensor output remained at. Possible open circuit. Coolant sensor indicated a temperature above 1. C for 3 seconds. after engine ran for 2. Probably a short. Coolant sensor indicated a temperature below 3. C for 3 seconds. when MAT 1. Probably open. 2. Throttle pos sensor above 2. Bug Too Pc Game. Throttle pos sensor below. MAT sensor shows lt 3. C for 3 seconds after engine. C. Probably an open circuit. No speed sensor pulses when engine between 2. MAT sensor showed above 1. C for 2 seconds after. Possible short circuit. Unknown Error Code. Unknown Error Code. MAP sensor voltage too high 4. Possible vacuum leak to. MAP sensor voltage too low lt 0. Closed throttle idle speed is more than 7. No Crankshaft reference pulses. Ignition voltage lt 1. Open or short on EST or BYPASS line to ignition module. Engine Knock Sensor open or shorted. O2 sensor showed lt 0. O2 sensor showed 0. Check insertion of MEMCAL in socket and bent pins. Check that CALPAK is in place, fully inserted, and no bent pins. Cars alternator has produced 1. Check charging system. Unknown error code. ECU A to D error. Check ECU grounds, or excessive input voltage Trouble codes by fault type. Problem Codes. NO problem 1. Oxygen Sensor 1. Coolant Sensor 1. TPS Throttle 2.