Internal Wiring Harness

WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL

GENERAL DESCRIPTION

B. Internal Wiring Harness (Figure 18)

The internal wiring harness provides connection between the external harness, the pulse width

modulated solenoids, oil level sensor, C3 pressure switch, and the temperature sensor.

C2 SOLENOID (B)

OIL LEVEL SENSOR (HD/B 500)

LU SOLENOID (F)

C1 SOLENOID (A)

C3 PRESSURE SWITCH

TURBINE SPEED SENSOR

(MD/B 300/B 400

DEUTSCH FEEDTHROUGH

Omitted in HD/B 500)

HARNESS CONNECTOR STANDOFF

(HD and MD are different heights)

C4 SOLENOID (D)

OIL LEVEL SENSOR

(MD/B 300/B 400)

TEMPERATURE SENSOR

LO SIGNAL SOLENOID (N)

TRANSID 1

(MD 3070 & HD 4070)

FORWARD SOLENOID (G)

C6 SOLENOID (J)

C5 SOLENOID (E)

(MD 3070 & HD 4070)

TEMPERATURE SENSOR

C3 SOLENOID (C)

TRANSID 2

V04841.01

Figure 18. WTEC III Internal Wiring Harness

17.

VEHICLE INTERFACE MODULE (Figure 19)

The vehicle interface module (VIM) provides relays, fuses, and connection points for interface with the output side

of the vehicle electrical system. VIMs are available for both 12V and 24V electrical systems. The VIM for 12V

systems uses all 12V relays. The VIM for 24V systems has all 24V relays. Refer to the Parts Catalog for the

transmission assembly number that you are servicing for detailed parts information. Refer to Pages D23 and D24

for VIM wire number and terminal information.

Some OEMs may provide their own equivalent for the VIM which performs the same functions as the VIM shown

V00631.02

Figure 19. Vehicle Interface Module (VIM)

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