Why is OBD II not communicating with state?
Help!!! Failed state inspection because OBD II wont communicate with tester, (or scan tool). I checked for blown fuses, especially cigarette lighter as tech suggested. No blown fuses! How do I troubleshoot this problem?
What happens when your car is not ready for an OBD test?
The status of the emission systems may also be reset by disconnecting the battery. After being reset, the emission systems on your vehicle will have a “not ready” status.
Why are scan tools not communicating with OBD2 system?
Check your fuses and replace any that are blown. Usually the cigarette lighter fuse also powers the DLC (data link connector) with this fuse blown the scan tools can not communicate with the OBD2 system. Why scan tool doesn,t connect to truck. ecm has been replaced????? was it programmed ?
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 causes a system to fail an OBD test?
There’s a systems that are most likely cause fail on emissions test. Self-tests on all of the OBD system monitors must have run and completed to pass an OBD II plug-in emissions test, and there’s should no trouble codes found during the test.
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.
What causes a car to fail the emissions test?
More common trouble codes that cause vehicles fail on emissions test and make the Check Engine light coming on can found below. Even fouled or the worn out catalytic converter is the most cause failed on test, based on above data you will get a somewhat different picture, if all of the related codes by system or component to be combined.
How does the OBD work on a car?
Your vehicle’s On-Board Diagnostic (OBD) computer reviews the status of the emission systems within the vehicle. During certain repair procedures, the status of these emission systems is reset by the repair technician.