Quote:
Originally Posted by Weebitob
As easy as just working the car myself, no kit required? I guess I should come clean with this problem to your folks earlier.  I realize now no place has the ECUTune ECU or TCU Stage 1, not even Motorsports Warehouse. I originally took it to a shop to check status of underside corrosion that was recommended by a friend who then told me it was more important to get the transmission addressed first. |
Yes that easy, if it is OBD1 Pre-1995, that is.
How to Check Transmission (TCU) Error Codes
Author: FSM
The "Power" light indicates transmission codes. Long blinks = 10, short blinks = 1. In other words, two long and two short blinks is a code 22. One long and one short is code 11. The following self diagnosis will show any fault codes for the transmission.
The most common trouble code is "11" and is almost always caused by a faulty transmission resistor located between the battery and fender.
To perform the self diagnosis test for EXISTING problems:
1. Warm up engine by driving at speeds greater than 12mph.
2. Stop vehicle and turn ignition switch OFF.
3. Turn ignition switch ON and make sure POWER indicator lamp comes on.
4. Turn ignition switch OFF.
5. Move selector lever to D and turn manual switch ON.
6. Turn ignition switch ON.
7. Move selector lever to "3" and turn manual switch OFF.
8. Move selector level to "2" and turn manual switch ON.
9. Move selector lever to "1" and turn manual switch OFF.
10. Partially depress accelerator pedal (to turn idle switch off).
11. Check code as displayed on POWER light. Blinking once every 1/4sec is normal.
To perform the self diagnosis test for PREVIOUS problems:
1. Warm up engine by driving at speeds greater than 12mph.
2. Stop vehicle and turn ignition switch OFF.
3. Turn ignition switch ON and make sure POWER indicator lamp comes on.
4. Turn ignition switch OFF.
5. Move selector lever to "1" and turn manual switch ON.
6. Turn ignition switch ON.
7. Move selector lever to "2" and turn manual switch OFF.
8. Move selector lever to "3" and turn manual switch ON.
9. Move selector lever to "D" and turn manual switch OFF.
10. Partially depress accelerator pedal (to turn idle switch off).
11. Check code as displayed on POWER light. Blinking once every 1/4sec is normal.
List of TCU Trouble Codes
Trouble Code
Item
11
Duty solenoid A
12
Duty solenoid B
13
Shift solenoid 3
14
Shift solenoid 2
15
Shift solenoid 1
21
ATF temp sensor
22
Atmospheric sensor
23
Engine revolution signal
24
Duty solenoid C
31
Throttle sensor
32
Vehicle speed sensor 1
33
Vehicle speed sensor 2
It would be ideal to start with a well charged electrical system.