question about 02 computer ports
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TECH Enthusiast
Joined: Feb 2002
Posts: 636
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From: HTownRacing.com, TX
question about 02 computer ports has anyone tried to tune an 02 car yet. we tried to connect ATAP up to it to run codes but it seems the pin configuration is different. or it may be that i have just lost a pin or one wasnt put in. from a 99 to an 02 the only difference is the pin in the lower left corner which seems to be the power pin for ATAP. just wondering if i need to go in for a replacement port or if we need to get with B&B for a different connector. thanks for any input.
Re: question about 02 computer ports Looking into the OBD-II connector that is fitted to your *vehicle*:
Pin 1 is Top left
Pin 8 is Top right
Pin 9 is Lower left
Pin 16 is Lower right
To be Communicate on J1850VPW (GM protocol) you need these pins:
2 = data
5 = ground
16 = Power
Full list of OBD-II plug pinouts
1. Discretionary*
2. Bus + Line of SAE-J1850
3. Discretionary*
4. Chassis ground
5. Signal ground
6. CAN high of SAE-J2284
7. K line of ISO-9141-2 and ISO-14230-4
8. Discretionary
9. Discretionary
10. Bus - Line of SAE-J1850
11. Discretionary*
12. Discretionary*
13. Discretionary*
14. CAN low of SAE-J2284
15. L line of ISO-9141-2 and ISO-14230-4
16. Un-switched vehicle battery positive
Regards
Paul
Pin 1 is Top left
Pin 8 is Top right
Pin 9 is Lower left
Pin 16 is Lower right
To be Communicate on J1850VPW (GM protocol) you need these pins:
2 = data
5 = ground
16 = Power
Full list of OBD-II plug pinouts
1. Discretionary*
2. Bus + Line of SAE-J1850
3. Discretionary*
4. Chassis ground
5. Signal ground
6. CAN high of SAE-J2284
7. K line of ISO-9141-2 and ISO-14230-4
8. Discretionary
9. Discretionary
10. Bus - Line of SAE-J1850
11. Discretionary*
12. Discretionary*
13. Discretionary*
14. CAN low of SAE-J2284
15. L line of ISO-9141-2 and ISO-14230-4
16. Un-switched vehicle battery positive
Regards
Paul
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Joined: Mar 2002
Posts: 22
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Re: question about 02 computer ports </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by X']['C WS6:
<strong>has anyone tried to tune an 02 car yet. we tried to connect ATAP up to it to run codes but it seems the pin configuration is different. or it may be that i have just lost a pin or one wasnt put in. from a 99 to an 02 the only difference is the pin in the lower left corner which seems to be the power pin for ATAP. just wondering if i need to go in for a replacement port or if we need to get with B&B for a different connector. thanks for any input.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The first thing you should do is contact Autotap tech support at support@autotap.com.
Each new model year of vehicle needs an update to the scan tool software. GM vehicles in particular need this update, but Fords may not need it. You can see this with every scan tool that supports enhanced data. Even GM's Tech-2. This update for the Autotap is on the way, but the release date is not known at this time.
A second issue is with 2002 and newer Chrystler/Dodge vehicles. Some of these vehicles will not work with current scan tools without a hardware update.
Jeff
<strong>has anyone tried to tune an 02 car yet. we tried to connect ATAP up to it to run codes but it seems the pin configuration is different. or it may be that i have just lost a pin or one wasnt put in. from a 99 to an 02 the only difference is the pin in the lower left corner which seems to be the power pin for ATAP. just wondering if i need to go in for a replacement port or if we need to get with B&B for a different connector. thanks for any input.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The first thing you should do is contact Autotap tech support at support@autotap.com.
Each new model year of vehicle needs an update to the scan tool software. GM vehicles in particular need this update, but Fords may not need it. You can see this with every scan tool that supports enhanced data. Even GM's Tech-2. This update for the Autotap is on the way, but the release date is not known at this time.
A second issue is with 2002 and newer Chrystler/Dodge vehicles. Some of these vehicles will not work with current scan tools without a hardware update.
Jeff