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DTC Code Question

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Old 02-20-2013, 06:52 AM
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Default DTC Code Question
I just picked up a Superchip Flashpaq 3875 and hooked it up to the JK. I ran the diagnostics program and got 2 error codes.

Just wondering if anyone knows what these code messages really mean?
U0121 Lost Communication with Anti-Lock Brake Module
U0100 Lost Communication with ECM/PCM

If it matters, I have a 2009 Rubicon with 2.5 teraflex coil lift.

Thanks.
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Old 02-21-2013, 10:19 AM
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anybody.....
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Old 02-24-2013, 05:30 PM
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Was a warning light on, or just checking codes for gp?
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