2011 Mack Gu713 electrical help!!

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by kmils0909, Nov 28, 2023.

Nov 28, 2023 #1

kmils0909 Bobtail Member

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Jul 12, 2022

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Anyone here good with Mack’s? Specifically a 2011 GU713.

Have some codes that are throwing me for a loop.

PPID 122 FMI 5 - Compression brake status, current below normal or open

PPID 330 FMI 5 - Compressor recirc Valve, below normal or open

SID 33 33 FMI 5 - Fan clutch output, below normal or open. EViscous

Can’t find anything wrong, the only thing I’m getting odd is 9.5v out of EB26 which is the temp sensor for the fan.

Any insight would be amazing. Thank you guys.

kmils0909, Nov 28, 2023

kmils0909, Nov 28, 2023

#1
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