Auto Diagnostic tools http://www.autotool
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1. Auto Diagnostic tools http www autotool mall com Application Notes 1 Benefits and Features of the Linespi DLC BOB 2 LineSpi Layout Pin 1 Pin 2 Yellow LED VPW PWM Pin 3 Pin 4 Green LED Gnd oO Pin 5 Green LED Gnd m Pin 6 Yellow LED CAN Se Pin 7 Yellow LED KWP ISO g Pin 8 a Pin 9 Pin 10 Yellow LED PWM x Pin 11 2 Pin 12 Pin 13 Pin 14 Pin 15 Pin 16 Red LED Connection to vehicle via 4 ft cable not shown Connection to scan tool via 6 in cable not shown 3 Red LED on pin 16 Di The red LED uses both grounds pin 4 and 5 This is Pin 4 Chass GN LED 16 accomplished by the use of diodes and effects how the red LED will respond to ground issues For example if the lt lt Pin 16 vehicle wiring to pin 4 has a high resistance problem it will not effect the red LED because it still has a good ground Fin Sig GND path via diode 2 and pin 5 the signal ground D2 As a general rule The red LED will dim if e The battery voltage is low e The wiring to DLC pin 16 is defective e Both ground circuits have resistance issues 4 Green LED on pins 4 and 5 LED 4 Each ground LED pin 4 and 5 is connected to battery voltage via pin 16 Therefore a R4 be ground issue on pin 4 will not affect LED 5 A dim individual green LED will indicate a Py Pin 4 circuit problem with the corresponding circuit LED 45 R5 ECH 5 Yellow LED on pins 2 6 7 and 10 Yellow LED s light up on2. his fuse is rated at 1 5 amps and will open the circuit at 2 7a temperature dependent Reset the fuse by disconnecting the fuse from power and let cool 7 Stories from the Field 1 Monitoring Voltage during Flashing When flashing you need to maintain a voltage of at least 12 6 volts up to 14 6 If voltage drops below 12 6 your flash will be corrupted Using the AES LineSpi lets you easily monitor voltage with a DVOM Put the black lead on Pin 4 and the red lead on Pin 16 7 Stories from the Field 2 Protect your Scan Tool We have heard that when Saturn Body Controller Module fail they may put 12 volts on Pin 2 something to do with a power transistor When a scan tool was connected this voltage fried the scan tool To check the voltage on Pin 2 with the AES LineSpi you can connect your DVOM black lead to Pin 4 red lead to Pin 2 Should get 0 to 7 volts CLASS II DATA If you get 12 volts battery voltage we urge you not to connect your scan tool j Dua cece w oeceeoee
3. pins 2 6 7 and 10 to show communication with scan tool and for communication protocol identification When the yellow LEDs illuminate depends on the vehicle For some vehicles none or multiple yellow LEDs will illuminate as soon as the LineSpi is connected and the ignition is turned on A Ford PWM is an example Pin 2 and 10 will start flashing as soon as the ignition is turned on even though a scan tool is not connected Also the brightness of the LED depends on the nature of the signal it is following Auto Diagnostic tools http www autotool mall com The LineSpi LEDs can be used to quickly identify the communication protocol The best way to identify the protocol is to set the scan tool up for LIVE DATA This will result in a constant data stream between the scan tool and the vehicle Next locate the LED s that are flashing For example e Only LED 7 flashing Protocol is either KWP or ISO 9141 e LED 2 and LED 10 flashing Protocol is PWM The User Manual goes into more detail 6 Self Healing Fuse on pin 16 The socket input to pin 16 is protected by a self healing fuse between the socket and the cable If for some reason a short were to develop between the pin 16 banana socket and a ground outside the LineSpi the fuse will open protecting the LineSpi the DLC connector and associated wiring Note that if a scan tool is connected to the LineSpi when a short occurs as described above the power to the scan tool will not be interrupted T
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