Engine/Transmission (1998.5 - 2002) Codes on my 01'

[kah68]

I just took my codes and heres what i got, P 1687 no MIC BUS message ED/J1850 "SMART KEY IMOBILIZER MODULE"



- P 1693 DTC detected in PCM

- P 1694 Fault in companion module NO CCD J1850

- ECU 1698 BUSS COM failure

- 0380 intake air heat relay circuit.



Are any of these serious? If not how can i reset or clear codes? If these are major problems any help fixing them would be greatly appreciated. Only thing that has been done to the truck is a BD X monitor install, and BD exhaust brake. Dealer also replaced wiring harness in the 1st year of service.



Thanks



Kirk

 

[Bob4x4]

You need to find what is pulling down your bus comunications... ... ..... nobody is able to communicate (modules)



Bob