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clinebarger · 06-14-2016, 01:00 AM

Installed a 2005 LM7/4L60E PCM service# 12589463, Fans now work with A/C Head Pressure. No luck on the A/C request, Jumped the relay too charge the A/C.

Idle's weird (rolling) with no load, Idles fine with the Compressor engaged (Park & drive), Or just in drive.

Codes P0053 & P0059, Heater Resistance Bank 1 & 2, These 2 descriptors are not even listed on my 2004 PCM, Set them too No Error Reported?

06-14-2016, 01:00 AM	#11
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: Need some help with tuning. Installed a 2005 LM7/4L60E PCM service# 12589463, Fans now work with A/C Head Pressure. No luck on the A/C request, Jumped the relay too charge the A/C. Idle's weird (rolling) with no load, Idles fine with the Compressor engaged (Park & drive), Or just in drive. Codes P0053 & P0059, Heater Resistance Bank 1 & 2, These 2 descriptors are not even listed on my 2004 PCM, Set them too No Error Reported?