45RFE, 545RFE, 68RFE Solenoid Identification & Connector Pin Out

Valve Body Xpress

Solenoid Identification

Solenoid	Resistance
Low/Reverse	1.3 Ohms (Normally Venting)
Multi-Select	1.3 Ohms (Normally Applied)
Underdrive	1.3 Ohms (Normally Applied)
Overdrive	1.3 Ohms (Normally Venting)
4th Clutch	1.3 Ohms (Normally Venting)
2nd Clutch	1.3 Ohms (Normally Venting)
Pressure Control	4.9 Ohms

The overdrive solenoid was eliminated in the 2009-later version of this valve body.

Connector Pin Out

Pin	Function
1	Fused Ignition Switch Output (Run Position)
2	Low/Reverse Solenoid Control
3	Blank
4	TRS T41 Sense
5	TRS T42 Sense
6	Backup Lamp Feed
7	Overdrive Solenoid Control
8	TRS T3 Sense
9	TRS T1 Sense
10	Transmission Control Relay Output
11	4C Pressure Switch Sense
12	Pressure Control Solenoid Control
13	TRS T2 Sense
14	Low/Reverse Pressure Switch Sense
15	2C Pressure Switch Sense
16	Overdrive Pressure Switch Sense
17	Underdrive Solenoid Control
18	Underdrive Pressure Switch Sense
19	4C Solenoid Control
20	2C Solenoid Control
21	MS Solenoid control
22	Sensor Ground
23	Transmission Temperature Sensor Signal

#7 Overdrive Solenoid Control NOT USED in 2009-Later!

Related Units

Related Parts

Required

Recommended

45RFE, 545RFE
Remanufactured Valve Body CHR140

’08-Earlier

While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.