Need help, PCS TCM unit (M6 to auto conversion)
04-03-2010, 09:16 PM
#1
Need help, PCS TCM unit (M6 to auto conversion) Just finishing up the conversion from T56 to a 4L80E using the PCS TCM unit. Took it out for it's first drive today. Need help resolving a few issue's.
- Speedo doesn't work.
- odometer doesn't work
- TCU display tach (software on laptop) and car tach not reading the same
- CEL came on
- po502 vehicle speed sensor (VSS) circuit low input (SES) (CURRENT) (HISTORY) (IMMATURE)
- po801 Reverse inhibit control circuit malfunction (old) (history) (current) (immature)
- and the po502 comes on and off with "vehicle speed sensor (VSS) circuit low input
04-05-2010, 04:55 PM
#2
1, 2, 4, 5, 7 Mechanical or electrical problem with the VSS. Bad sensor, 4x4 trans converted to 4x2 and reluctor wheel was not installed, wrong wires connected to sensor.
You do have your VSS connected to the rear sensor right?
For #6 simply delete the code, it's for the M6, it's checking to see if the solenoid is there and it's obviously not so it throws that code.
You do have your VSS connected to the rear sensor right?
For #6 simply delete the code, it's for the M6, it's checking to see if the solenoid is there and it's obviously not so it throws that code.
04-10-2010, 11:20 PM
#3
need a little more help with #1 & #2. We taped the original factory vss harness in to the new pcs vss harness. Speedo and odometer now work but are WAY off. But when reading the speed with hp tuners and the pcs software, they are correct or real close. We have tried to adjust the speedo settings in hp tuners, but it makes no difference. And the pcs speedo harness output is a single wire output, so not sure how we can use it to drive the two wire vss factory harness, unless we somehow go directly to the back of the speedometer.
suggestions?
suggestions?
