Why is my OBD2 not talking to anything?
However, ever since that incident my OBD2 is not talking to anything I’ve hooked to it. Truck runs as always, like a champ. But I can no longer moniter things by way of the OBD2. Yes it has power. Scan tools scan every protocol but don’t link. Like the PCM is mad at the port and won’t talk lol.
Why is the OBD2 port pinout not communicating?
Thanx in advance. Here is is the OBD2 port pinout, a bad ground will prevent communication, pin 5 is a ground. See if it has a good ground. Key off and use a good 10 megaohm impedance ohmmeter to test the pin 5 to ground. If no ground the circuit is broken somewhere between the OBD2 connector and the PCM
How to read and understand the OBD2 code?
1 The first digit is a letter corresponding to the category or system in the car that has an issue. 2 The second digit is either 0 or 1 3 The third digit indicates which function system is experiencing the issue. 4 The fourth and fifth digits refer to the exact problem in the specified systems.
Why do I get No OBD code on my car?
Blown Fuse If you’ve plugged into your car’s diagnostic port and aren’t reading anything, you might think that your OBD-II brain has been fried, but don’t declare it dead yet. The most common reason for getting no OBD code is simply a blown fuse.
What to do if the OBD II scanner doesn’t communicate with the vehicle?
What to do if the OBD II scanner doesn’t communicate with the vehicle. 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 the body or chassis ground but to the battery terminal directly.
Thanx in advance. Here is is the OBD2 port pinout, a bad ground will prevent communication, pin 5 is a ground. See if it has a good ground. Key off and use a good 10 megaohm impedance ohmmeter to test the pin 5 to ground. If no ground the circuit is broken somewhere between the OBD2 connector and the PCM
What does the OBD 2 warning light mean?
If a problem or malfunction is detected, the OBD II system illuminates a warning light on the vehicle instrument panel to alert the driver. This warning light will typically display the phrase “Check Engine” or “Service Engine Soon,” and will often include an engine symbol.
What do the OBD and DTC codes mean?
The most important are the OBD, DTC, OBD2, and SAE. OBD directly refers to your car’s On-Board Diagnostics (OBD) system that stores fault data in the form of Diagnostic Trouble Codes (DTC).
Why is my PCM not connecting to the OBD2 port?
If no ground the circuit is broken somewhere between the OBD2 connector and the PCM If the ground is good then it is either a bad connection on pin 2 back to the PCM or a Bad PCM itself, which I suspect is the problem. Note that the OBD2 port is fused.
What should the voltage be on the OBD II scanner?
With the ignition key ON and no bus activity, BUS + should read 0V BUS should read 5V With the ignition key ON and bus activity, the voltage should vary from 0 to 5V depending on the amount of bus activity! ADDITIONAL NOTES PCM receives battery voltage (B+) through a fuse or fusible link. Check for an open circuit.
What to do if your OBD port does not work?
Please try again later. If you are trying to connect your scanner to the OBD Port it does not work, does not communicate with the car we will show you how to fix that. Usually there is a fuse for the OBD port, if you cannot find they the fuse for the cigarette lighter and the auxiliary ports. Instagram: https://www.instagram.com/worldmechan…
Why is my OBD2 not connecting to YouTube?
These issues include an incompatible obd2 scan tool, bad fuses, damage in the circuit board, ECU, and failed computer. OBD-II…. Non connecting data Port Issue. *FIXED* This might help you! – YouTube OBD-II…. Non connecting data Port Issue. *FIXED* This might help you! If playback doesn’t begin shortly, try restarting your device.
What are the lights on the OBD2 port?
2. Turn signal lights (10A). 3. Fog light relay, instrument panel light dimmer switch (5A). 4. License plate light (5A). 5. Comfort system, cruise control, Climatronic, A/C, heated seat control modules, automatic day/night interior mirror, control module for multi-function steering wheel, control unit in steering wheel (7.5A).
Blown Fuse If you’ve plugged into your car’s diagnostic port and aren’t reading anything, you might think that your OBD-II brain has been fried, but don’t declare it dead yet. The most common reason for getting no OBD code is simply a blown fuse.