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Old 06-19-2011   #6
WVZR-1
 
Join Date: Oct 2004
Posts: 1,884
Default Re: CCM code 54 "Cranks does NOT run"! '90 MY

Quote:
Originally Posted by Marc Haibeck View Post
The VATS control on ZR-1's is in the CCM.

Chances are that the key was not read correctly. The VATS system would lock out the starter and the fuel. Maybe in the past, someone has bypassed the start relay. Then with a VATS lockout the engine will crank but not start.

It might be best to skip the VATS repair and bypass the VATS fuel lockout. It's easy to do on ZR-1's with a modification to the engine calibration chip.

Best of luck.
Marc,

Thanks for commenting.

The original CCM will only allow crank with a #6 VATS. I installed a 2nd CCM today that will only crank with a #9 VATS. I get the same errors Code 54 Fuel enable circuit.

If I understand your comment correctly the "fuel enable" can be bypassed/defeated with a PROM modification?

In the FSM there's notes regarding an SIR situation could also create a CCM code 54 and disable fuel. The SIR fuse is NOT blown but there could be issues with the SIR. The Tech1 CCM data displays the seat belt as "buckled" but it certainly is NOT!

I will drop you an email regarding the situation.

Thanks,
-Dave
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