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cloe0626, Auto Mechanic
Category: Honda
Satisfied Customers: 823
Experience:  was a mechanic in the army for four years and have been working at a dealer ship the past five years
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2007 Honda civic no comm with pcm all other modules okay

Customer Question

2007 Honda civic no comm with pcm all other modules okay could the key be the problem cause the security light keeps flashing
Submitted: 1 year ago.
Category: Honda
Expert:  cloe0626 replied 1 year ago.

if your security light is flashing when you put the key in then the ignition switch is not reading the key witch for security reasons will not allow communication to the pcm the problem could be the key its self but more then likely its the ignition switch do you have a spare key to try

Customer: replied 1 year ago.
no I don't
Customer: replied 1 year ago.
but that shouldn't prevent the pcm from communicating with the scanner
Customer: replied 1 year ago.
all the other modules are communicating
Customer: replied 1 year ago.
with the scan tool but not with the pcm
Expert:  cloe0626 replied 1 year ago.

Have you unhooked the pcm and cleaned the connection