ATSG AX4S, Update Handbook

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Copyright © 2002 ATSG
Technical Service Information
AUTOMATIC TRANSMISSION SERVICE GROUP
FORD AXOD-E (1991-1992 ONLY)
ELECTRICAL DIAGNOSIS (UPDATED)
EPC SOLENOID:
TRANSAXLE OIL TEMPERATURE SENSOR (TOT):
MODULATED LOCK-UP SOLENOID (MLUS):
LOCK-UP SOLENOID (LUS):
Wires for the Electronic Pressure Control solenoid are fed through pins 1 and 6 of the "Black/Gray" case
connector, located on top of the transaxle (See Figure 88). Ohmmeter across terminals 1 and 6 should read
2.5-6.5 Ohms resistance.
Wires for the Modulated Lock-Up Solenoid (MLUS) are fed through pins 4 and 5 of the "Gray" case
connector, located on top of the transaxle (See Figure 88). Ohmmeter across terminals 4 and 5 should read
0.75-2.0 Ohms resistance if you have MLUS. The Modulated Lock-Up Solenoid (MLUS) is found on the
Lincoln Only for the 1991 model year. Taurus/Sable for 1991 are the regular Lock-Up Solenoid (LUS) that is
described below. All models for 1992 model year are MLUS.
Wires for the Lock-Up Solenoid (LUS) are fed through pins 4 and 5 of the
"Black"
case connector, located on
top of the transaxle (See Figure 88). Ohmmeter across terminals 4 and 5 should read 16-40 Ohms resistance
if you have LUS. The Lock-Up Solenoid (LUS) is found on the
Taurus/Sable Only for the 1991 model year.
Lincoln for 1991 is the Modulated Lock-Up Solenoid (MLUS) that is described above. All models for 1992
model year are MLUS.
CAUTION! POPPED A COMPUTER LATELY? CAUTION!
CAUTION! CAUTION! CAUTION! CAUTION! CAUTION!
TOT SENSOR (OHMS)
100k - 37k
37k - 16k
16k - 5k
5k - 2.7k
2.7k - 1.5k
1.5k - 0.8k
0.8k - 0.5k
°C °F
59-104
105-158
159-194
195-230
231-266
21-40
41-70
71-90
91-110
111-130
0-20 32-58
267-302 131-150
Wires for the Transaxle Oil Temperature (TOT) sensor are fed through pins 2 and 3 of the "Black/Gray" case
connector, located on top of the transaxle (See Figure 88). Ohmmeter across terminals 2 and 3 should read the
approximate resistance listed in the chart below. Resistance should decrease if transaxle is heated, and
should increase if transaxle is allowed to cool. Oil pan that is warm to the touch is about 105°F-158°F.
LUS/MLUS