Post by phoenixian on Jun 29, 2018 15:07:51 GMT -6
Still have this error code P088 showing twice on my Acton scanner as I reported in this thread aurorah.proboards.com/thread/31063/
P088 (E088) .... Torque converter clutch did not disengage when commanded OFF by PCM
Also, 66 cruise control engaged came on once again but I didn't have cruise control on.
Once in awhile the AC comes on by itself even though I didn't turn it on
I am hoping it is a wiring issue and not a transmission issue
The car drives fine - does not stall or anything.
This Cadillac guy had a nearly identical issue after replacing a weak battery also: caddyinfo.ipbhost.com/topic/23379-strange-multiple-codes-and-datastream-readings/
I'm wondering if I should risk a 30 minute drive to a GM dealer to have them diagnose exactly what it is.
I am afraid that if it is actually transmission issue, I could ruin the transmission.
Are there any other data points on my Actron CP9145 scanner that could provide clues as whether not the transmission is affected? I watched 'TCC Duty Cycle' go from 25% in idle/parked up to 75% when im at about 50 - 60 mph.
How do I determine TCC slip speed?
P088 (E088) .... Torque converter clutch did not disengage when commanded OFF by PCM
Also, 66 cruise control engaged came on once again but I didn't have cruise control on.
Once in awhile the AC comes on by itself even though I didn't turn it on
I am hoping it is a wiring issue and not a transmission issue
The car drives fine - does not stall or anything.
This Cadillac guy had a nearly identical issue after replacing a weak battery also: caddyinfo.ipbhost.com/topic/23379-strange-multiple-codes-and-datastream-readings/
I'm wondering if I should risk a 30 minute drive to a GM dealer to have them diagnose exactly what it is.
I am afraid that if it is actually transmission issue, I could ruin the transmission.
Are there any other data points on my Actron CP9145 scanner that could provide clues as whether not the transmission is affected? I watched 'TCC Duty Cycle' go from 25% in idle/parked up to 75% when im at about 50 - 60 mph.
How do I determine TCC slip speed?
