Engine/Transmission (1998.5 - 2002) 2002 PCM and ECU Location

[MR V]

My engine light came on today and shows the following codes on my 2002: 1694, 1693, 1687 and 1698. Based on a little research the TDR says to check all the connections on the PCM and ECU. Where is the PCM and ECU located on my 2002?



Truck is running fine and the dash is working fine.



Is there anything else I should check / clean or look for?



Thank you!



Mike

 

[DWest]

locations

The ECM is on the engine block, drivers side, just below the fuel filter. The PCM is on the passenger side firewall. Easy to find. DWest

 

[MR V]

Thank you.

 

[DWest]

Code descriptions

Someone on here must have the descriptions for all the codes or a place to download them. I could sure use them too. DWest

 

[LBARTLETT]

I've got them but I don't know how to attach a word file, pm me your email and I'll get them to you in a day or two

 

[Bob4x4]

Most are listed in the 911 section of the forum

 

[MR V]

Thank you. I have the code descriptions. I disconnected the three connectors to the PCM and reconnected them last night. Drove it to work this morning and no more engine light. I hope it stays this way.



Mike

 

[ToolManTimTaylor]

Someone on here must have the descriptions for all the codes or a place to download them. I could sure use them too. DWest

I did this a while ago it is in the 24V Faq:



https://www.turbodieselregister.com...ine-transmission-faq/96634-24v-code-list.html