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39
AUTOMATIC TRANSMISSION CONTROLS
Automatic Transmission
Automatic Transmission Fluid Pressure (TFP) Manual
Valve Position Switch
Electronic Brake Control Module (EBCM)
Fuse Block-Rear
Fuse Block-Underhood
Instrument Panel Cluster (IPC)
Park/Neutral Position (PNP) Switch
Powertrain Control Module (PCM) (4.2L)
Powertrain Control Module (PCM) (5.3L)
Pressure Control (PC) Solenoid Valve
Stop Lamp Switch
Vehicle Speed Sensor (VSS) (2WD)
Vehicle Speed Sensor (VSS) (4WD)
Circuit Schematic
39-0
AUTOMATIC TRANSMISSION CONTROLS
YEL/BLK
0.35
LT GRN
0.35
IGN-O
Fuse 47
10A
HOT IN ACC, RUN
AND START
FUSE
BLOCK–
REAR
Connector
C1
E7
S
T
U
B
E
1-2 SHIFT
SOLENOID
(1-2 SS)
VALVE
A
PNK
0.35
PNK
0.35
BRN
0.35
C2*
*27
*37
*22
*57
*59
POWERTRAIN
CONTROL
MODULE
(PCM)
(4.2L)
(5.2L)
Connector 4.2L
Connector 5.3L
TAN/BLK
0.35
WHT
0.35
1-2 shift
solenoid
valve control
2-3 shift
solenoid
valve control
TCC PWM
solenoid
valve
control
TCC
solenoid
valve
control
3-2
solenoid
valve
control
D2
C1
FUSE
BLOCK–
UNDERHOOD
Connector
E3
C2
AUTOMATIC
TRANSMISSION
Connector
2-3 SHIFT
SOLENOID
(2-3 SS)
VALVE
TORQUE
CONVERTER
CLUTCH
PULSE
WIDTH
MODULATION
(TCC PMW)
SOLENOID
VALVE
TORQUE
CONVERTER
CLUTCH
(TCC)
SOLENOID
VALVE
3-2 SHIFT
SOLENOID
(3-2 SS)
VALVE
**79
**42
**2
**47
**48
C1**
C2
*
4.2L
**
5.3L
C2
F4
(Not used)
PNK
0.35
See Power
Distribution,
Page 10-12
C175
C175
B
LT GRN
0.35
B
YEL
0.5
B
TAN
0.5
B
BLK
0.5
B
WHT
0.5
A
RED
0.5
RED
0.5
A
RED
0.5
A
RED
0.5
A
RED
0.5
A
RED
0.5
Circuit Schematic
39-1
AUTOMATIC TRANSMISSION CONTROLS
LT BLU/
WHT
0.35
BLK
0.35
RED/BLK
0.35
YEL/BLK
0.35
PNK
0.35
DK BLU
0.35
M
D
*4
POWERTRAIN
CONTROL
MODULE
(PCM)
(4.2L)
(5.3L)
Connector 4.2L
Connector 5.3L
PC
solenoid
valve
control
(Sol. A)
**8
*8
**53
C2
C3*
C1**
*
4.2L
**
5.3L
C2
*5
PC
solenoid
valve high
control
(Sol. A)
POWERTRAIN
CONTROL
MODULE
(PCM)
(4.2L)
(5.2L)
Connector 4.2L
Connector 5.3L
C
C3*
*22
Transmission
fluid temp
sensor signal
C3*
*21
Transmission
fluid pressure
switch signal A
C3*
*10
Transmission
fluid pressure
switch signal B
L
N
R
**6
C2**
**51
C2**
**63
C1**
**17
A
PPL
0.5
PRESSURE
CONTROL
(PC)
SOLENOID
VALVE
LT
BLU
0.5
B
A
BRN
0.5
AUTOMATIC
TRANSMISSION
FLUID
TEMPERATURE
(TFT) SENSOR
RED
0.35
C3*
*19
Transmission
fluid pressure
switch signal C
C175
P
C1**
**18
C
PNK
0.5
E
DK BLU
0.5
D
ORN
0.5
REV
SWITCH
LO
SWITCH
D3
SWITCH
D2
SWITCH
D4
SWITCH
AUTOMATIC
TRANSMISSION
FLUID
PRESSURE
MANUAL VALVE
POSITION
SWITCH
AUTOMATIC
TRANSMISSION
Connector
GRY
0.5
B
Low
reference
C175
39-2
AUTOMATIC TRANSMISSION CONTROLS
PPL/WHT
0.35
IGN E
Fuse 22
10A
HOT IN
RUN
AND START
FUSE
BLOCK–
UNDERHOOD
Connector
C2
B6
PNK
0.35
PPL
0.35
C2
*10
*28
POWERTRAIN
CONTROL
MODULE
(PCM)
(4.2L)
(5.3L)
Connector 4.2L
Connector 5.3L
TCC brake
switch/
cruise control
release signal
STOP
LAMP
SWITCH
Connector
D
**21
**33
C1
*
4.2L
**
5.3L
VEHICLE
SPEED
SENSOR
(VSS)
(2WD)
(4WD)
Connector
PPL/WHT
0.35
C310
B
LT GRN/BLK
0.35
*2
**20
LT GRN/BLK
0.35
A
VSS
high
signal
VSS
low
signal
4WD only
2
1
Twisted
Twisted
C
See Power
Distribution,
page 10-13.
See Power
Distribution,
page 10-13.
PNK
0.35
TCC
B10
C2
E3
C3
C2
B5
ELECTRONIC
BRAKE
CONTROL
MODULE
(EBCM)
Connector
TCC/brake
switch/
cruise
control
release
signal
PPL
0.35
PPL
0.35
PPL
0.35
PPL
0.35
FUSE
BLOCK-
UNDERHOOD
Connector
C107**
C8
Circuit Schematic
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