What should voltage drop be on DLC pin 4?
TEST 1: Connect the positive DMM lead to DLC pin 4 and the negative DMM lead to the negative battery terminal, using jumper wires if necessary. Do not connect to body or chassis ground but to the battery terminal directly With the ignition on, voltage drop across the ground terminal should be 0.1 Volts or less
Where are the DLC pins on the PCM?
Studying the PCM pinouts seems to indicate that there are just two DLC pins connected directly to the PCM and they are: PCM pin 5 to DLC Terminal 10 and PCM pin 79 to DLC Terminal 7 TEST 1: Connect the positive DMM lead to DLC pin 4 and the negative DMM lead to the negative battery terminal, using jumper wires if necessary.
What should the voltage be on a Class 2 serial pin?
With the Ignition on, the voltage on class 2 serial data pin should be 5V or fluctuating between 3.5V and 5.0V, If open, PCM cannot transmit data to the scan tool. Connect positive DMM lead to DLC Battery + terminal Connect negative DMM lead to battery ground terminal
Where is the K line pin on a BNC test lead?
Attach one of the Back-pinning Probe to the colored plug on the BNC test lead. Referring to the vehicle technical manual, identify the K-Line pin at an accessible point on the vehicle communication network (usually available at the DLC connector).
What should normal voltage reading be on DLC?
The positive lead is hook up at pin 1 of DLC.If you are testing LOW SPEED modules, disconnect S1 connector. All modules will be cut off.With key on engine off. Normal voltage reading should be 5-7 volts.If not, the DLC connections from pin 1 to S1 is no good.
Where is the 16-pin diagnostic connector ( DLC )?
The EOBD / OBDII 16-pin diagnostic connector (DLC) Where is the connector? The EOBD connector is required by the Directive to be located within the passenger compartment of the car, within reach of the driver’s seat. Tools should not be required to reveal the connector, but it may have a removeable cover over it.
With the Ignition on, the voltage on class 2 serial data pin should be 5V or fluctuating between 3.5V and 5.0V, If open, PCM cannot transmit data to the scan tool. Connect positive DMM lead to DLC Battery + terminal Connect negative DMM lead to battery ground terminal
How is iso9141-2 wired to DLC pin 7?
ISO9141-2 is wired to DLC pin 7. It is a 12V DC digital signal, but will trick the unaware as the network rests at 12V DC rather than 0VDC. (Aftermarket accessory installers not knowing the electrical signature often tap into it, seeing 12V DC with their test light, and ground the circuit, shutting the bus down.