trucking251 Posted February 5 Share Posted February 5 2005 Mack Granite CV713. ABS light comes on and off. Lightning bolt occasionally comes on. Pressing both black buttons on dash I'm getting codes S004-7 M136 and S002-08 M128. I know M128 is engine code and M136 ABS code, but it would be helpful to know specific code so I can tackle just one sensor. Thanks. Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/ Share on other sites More sharing options...
Joey Mack Posted February 5 Share Posted February 5 Since it's a Granite.. I bet one of the rear wheel sensors has a bad wire.. keep it simple. ABS ecu are pretty tough. The ABS wires are supposed to be clipped to the s-cam housing , when they fall off they can get damaged. But I would focus on the engine code anyway.. how did you get those code names by using blink codes with the cruise control buttons? Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/#findComment-546170 Share on other sites More sharing options...
trucking251 Posted February 6 Author Share Posted February 6 No, I hold the 2 black buttons on dash, then I can cycle through the codes. Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/#findComment-546184 Share on other sites More sharing options...
JoeH Posted February 6 Share Posted February 6 Being a Vmac III, with cruise control off you should be able to hold the set/Decel button for a few seconds to trigger the lightning bolt to flash out a 2 digit code. That 2 digit code would tell us what the problem is. 1 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/#findComment-546192 Share on other sites More sharing options...
JoeH Posted February 6 Share Posted February 6 (edited) When the first code is done flashing hit it again to request the next stored code. Don't recall if this works if the lightning bolt isn't lit, displaying there's an active code. Edited February 6 by JoeH Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/#findComment-546193 Share on other sites More sharing options...
Joey Mack Posted February 6 Share Posted February 6 The lightning bolt has to be ON.. Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/#findComment-546194 Share on other sites More sharing options...
trucking251 Posted February 23 Author Share Posted February 23 unfortunately the lightning bolt is never on long enough for me to get a code. I still can't translate abs codes I'm getting. ABS light is on most of the time. Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/#findComment-547027 Share on other sites More sharing options...
Joey Mack Posted February 23 Share Posted February 23 Is there an ABS switch under the dash above the clutch pedal. It's an orange lighted switch.. Quote Link to comment https://www.bigmacktrucks.com/topic/73832-dash-code-meaning/#findComment-547029 Share on other sites More sharing options...
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