Copyright © 1998 General Motors Corp.
4–3
WIRE CHECK PROCEDURES
W T E C I I E L E C T RO N I C C O N T RO L S T RO U B L E S H O OT I N G M A N UA L
3.
If all connectors are clean and connected correctly, and the unit being serviced is an MD, B 300, or
B 400 transmission prior to S/N 6510015259, refer to SIL 11-WT-94, Rev. A.
a. If diagnostic code 25 11 or 22 16 is still being set and no water was found in the main transmission
connector (external), the problem may be a white film contamination found inside
the transmission.
b. Remove the control module. Inspect for white film contamination. (Refer to appropriate transmis-
sion Service Manual for proper procedure.)
c. If white film contamination is present, clean the interior of the transmission using mineral spirits.
d. Replace the feedthrough connector and internal harness with wire seals (Figure 4–3).
Figure 4–3. Feedthrough Connector, “Green Seal,” And Internal Harness
CAUTION:
The cleaning solvent must not be chlorine based, contain petroleum distillates, or
conduct electricity. The cleaning solvent should evaporate quickly to prevent the
possibility of condensation within the connectors. Always blow or shake any excess
cleaner from the connector before assembling it to its mating connector or hardware.
Cleaner trapped in the connector can affect the connector seal. (Refer to SIL 17-TR-94
for detailed information on the recommended cleaners.)
V01607
FORWARD SOLENOID
C2 SOLENOID (B)
LU SOLENOID (F)
C1 SOLENOID (A)
C5 SOLENOID (E)
C3 SOLENOID (C)
MD OIL LEVEL SENSOR
C3 PRESSURE SWITCH
TEMPERATURE SENSOR
FEEDTHROUGH
CONNECTOR
HD OIL LEVEL SENSOR
TURBINE SPEED SENSOR
MD/B 300/B 400
(OMITTED IN HD/B 500)
C4 SOLENOID (D)
MD 3070 C6 SOLENOID (J)
MD 3070 LO SIGNAL (N)
FEEDTHROUGH
CONNECTOR
“GREEN” SEAL
29514674
WIRE SEALS AT
INTERNAL HARNESS
CONNECTOR
STANDOFF SPACER
HD/B 500
