bigalpha
Moderator
- Location
- Tucson, AZ
that's probably what it is. i just confirmed it does work.
Alright, I'll just have to wait until I get home to check it out I guess.
that's probably what it is. i just confirmed it does work.
Well, I hope someone corrects me if I'm wrong....but if you get the readings that you do at the harness under the hood, you are bypassing all the other stuff and getting just the reading of the harness and solenoids.Alright, so I went through the whole harness:
C3: 4.92V
C8: 12.61V
C9: (NSS?) 0.00V
C14: 0 ohm
C15: 16-150 ohms
C16: 0 ohms
D2: (TPS) .79V-3.76V
D14: battery V
D16: battery V
I checked the three solenoids at the harness at the firewall under the hood:
C14: 0 ohms
C15: 16-150 ohms
C16: 0 ohms
Can the NSS be bad enough to mess with the TCM, but not messed up enough to give any other symptoms?
from what pins did you check c16 and c14 to? check them to a ground, pin b on the gray plug or d7 on the tcu.
I'm thinking he's getting the same reading from in the cab and under the hood also.from what pins did you check c16 and c14 to? check them to a ground, pin b on the gray plug or d7 on the tcu.
I'm thinking he's getting the same reading from in the cab and under the hood also.
I recall somewheres in this thread he was using D7 in the TCU plug.
just do a quick check check d7 to the negative battery post.
I know it was the beggining of the thread but I had to ask.Jeep in 'Park', ignition 'ON', TCM plugged in - C14-C16 registerd 0 ohms.
I had to do some back tracking when I was doing mine.If there's anything I don't make clear, please point it out ... it possible I had a brain fart
I had to do some back tracking when I was doing mine.
What was the result of C10 as per testing instructions? ..... you might have mentioed it somewheres and I missed it:speepin:.
Also:
QUOTE:
In the chart you will see an asterisk next to the neutral- switch and comfort-switch checks. If battery voltage is not seen as in- dicated in the chart on both sensors, check for a blown 7.5-amp #13 fuse in the main fuse panel.
I don't think you have to Power-Comfort switch but the other is curcial.
This could answer the NSS question you asked earlier.
Well, the TPS reads a little low ~3.7V.
The Speed Sensor shows 0V.
I don't have any classic NSS symptoms.
**Actually, the Speed sensor shows the correct voltage, but it doesn't cycle because I can't rotate anything by hand while i'm testing. i assume it's good though.
That's normal for the speed sensor. On the 1996 and before, it's a switch that closes once per revolution. If it's bad the tranny will stay in 1st gear as the trans computer thinks you're not moving. Later models it's a hall effect sensor similar to the CPS sensor and you'll see a/c spikes as it rotates.