Vehicle OBD system is unresponsive.
Aug 18, 2023 at 2:34 PM
Rejected emissions test, vehicle OBD system is unresponsive?
2010 PONTIAC G6
ANGIE ESTRADA
- MEMBER
- 1 POST
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,193 POSTS
Hi,
If you are unable to connect, let's start by checking for power and ground at the data link connector.
If you look below at pic 1, it shows the data link connector and pin numbering. Pic 2 shows what each pin is for.
First, check pin 16 for power. It should have power at all times. If that is good, check pins 4 and 5 for continuity to ground.
Let me know what you find.
Take care,
joe
See pics below.
If you are unable to connect, let's start by checking for power and ground at the data link connector.
If you look below at pic 1, it shows the data link connector and pin numbering. Pic 2 shows what each pin is for.
First, check pin 16 for power. It should have power at all times. If that is good, check pins 4 and 5 for continuity to ground.
Let me know what you find.
Take care,
joe
See pics below.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Aug 18, 2023 at 11:25 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.