A/T - E40D Quick Tests

TRANSMISSION: E4OD

BULLETIN: # 037

SUBJECT: Quick Tests

DATE: January 1991

Shifting The E4OD

The E4OD can be shifted without the computer by energizing the # 1 and # 2 shift solenoids in the right sequence.







Connect a 12 volt lead to pin # 1.
Connect a ground lead to the pin (5) in the chart to shift the TRANSMISSION.

Pin # 3 Pin # 2
1st Gear Ground 0
2nd Gear Ground Ground
3rd Gear 0 Ground
4th Gear 0 0

Use the chart to test the internal electrical components.

Pin #

1-- + 12 volt common lead (no test for this lead).
2-- # 2 Solenoid - Use an ohmmeter to check the resistance between pins 1 and 2, it should be 20-30 ohms.
3-- # 1 Solenoid - Use an ohmmeter to check the resistance between pins 1 and 3, it should be 20 - 30 ohms.
4-- # 3 Solenoid - Use an ohmmeter to check the resistance between pins 1 and 4, it should be 20-30 ohms.
6-- Void
7-- TOT - Check the resistance between pins 7 & 8 use the temperature chart below for the resistance.
8-- TOT - Check the resistance between pins 7 & 8 use the temperature chart below for the resistance.
9-- Void
10-- Void
11-- EPC - Use an ohmmeter to check the resistance between pins 11 & 12 it should be 4.0 - 6.5 ohms.

TRANSMISSION FLUID TEMPERATURE

DEGREES C (DEGREES F) RESISTANCE (OHMS)

0-20 (32-58) 37K-100K
21-40 (59-104) 16K-37K
41-70 (105-158) 5K-16K
71-90 (159-194) 2.7K-5K
91-110 (195-230) 1.5K-2.7K
111-130 (231-266) 0.8K-1.5K

BULLETIN RECAP

^ To diagnosis a computer problem, shift the transmission according to the chart in this bulletin.

^ If the transmission doesn't shift, check the solenoids as described in the included information.