Speedometer Signal Missing Cel?

[jpursell]

My CEL gives a code 2-3-2 in socket A1. I have searched this board and others endlessely to no avail. My speedometer works fine, car is stuck in limp mode with up arrow flashing. I tried the "ratchet" cleaning and that didn't seem to work. I my PNP bad? Is it my Vehicle speed sensor (if so, where the heck is it located)?

Please, this Noob need help.....

[jpursell]

My CEL gives a code 2-3-2 in socket A1. I have searched this board and others endlessely to no avail. My speedometer works fine, car is stuck in limp mode with up arrow flashing. I tried the "ratchet" cleaning and that didn't seem to work. I my PNP bad? Is it my Vehicle speed sensor (if so, where the heck is it located)?

Please, this Noob need help.....

I replaced the Speedometer sensor last weekend on the Transmission, cleared the codes, and all was fine. Drove 600 miles since then with no probs. On the way home tonight (short trip, car wasn't even warmed up), flashing arrow came back, and the gagues in the cluster all quit working (that didn't happen previously). Ran codes, get 2-3-2 again in the trans socket, again.

Could this be a PNP switch? ABS Module? Fault in the VSS circuit?

Thanks

1995 850 GLT Wagon, 225k miles

Grand Rapids, MI

[AlvinL]

This should help you. Suggest you check for codes out of A7 for the Instrument Cluster (Panel) also.

DTC 232/P0500: SPEEDOMETER SIGNAL MISSING

1) Speedometer provides vehicle speed information to TCM. TCM uses signal to determine whether transmission changes gear at correct speeds. If DTC 232 is set, use scan tool and compare vehicle speed with speedometer. If reading is correct, go to step 3). If reading is incorrect, check for speedometer malfunction. See appropriate INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT. If speedometer is okay, check for an open circuit or short to voltage or ground in signal wiring. Repair as necessary. If wiring is okay, go to next step.

2) Ensure ignition is off. Connect measuring unit to TCM. Shift transmission to "N" position. Raise and support front of vehicle. Turn ignition on. Measure voltage between measuring unit terminals No. 20 and 48. Block one front wheel and spin other wheel rapidly. If voltmeter reads 4-7 volts, DTC was set because of poor terminal contact at TCM or speedometer connector. If voltmeter does not read 4-7 volts, replace speedometer.

3) Ensure ignition is off. Check that Vehicle Speed Sensor (VSS) is securely fastened to transmission. Ensure there is no dirt between sensor and mating surfaces. Repair as necessary. If VSS is okay, ensure all grounds are clean and tight. Repair as necessary.