I have a 1996 Jeep Grand Cherokee Laredo 4X4 with 5.2 V8 and the ABS light is lit. I have looked throught the Chiltons Manual and Owners Manual and cant find the reason why its on. I have connected it to a Snap-On diagnostic computer and the read out stated 12 left front inlet valve. Is this part of the HCU or something else I need to get it cleared.

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