1993 DODGE TRUCK overdrive switch

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Page 898 of 1502

DODGE TRUCK 1993  Service Repair Manual 
• 

FUEL SYSTEM
 14-79 
OVERDRIVE/OVERRIDE SWITCH-PCM
 INPUT 

The overdrive/override switch is not used with 
manual transmissions.  On vehicles equipped with overdrive, the PCM reg­
ulates the 3

Page 899 of 1502

DODGE TRUCK 1993  Service Repair Manual 
14 - 80
 FUEL SYSTEM 

• 
SCI
 RECEIVE-PCM
 INPUT 

The serial communication interface (SCI) receive 
and transmit outputs allow the PCM to communicate 
with the DRB II scan tool. 

SENSOR
 RETURN-

Page 901 of 1502

DODGE TRUCK 1993  Service Repair Manual 
14 - 82
 FUEL 'SYSTEM
 —. — ~—— — « 

INTAKE HEATER CYCLE CHART 

Intake 
featperafwre 
 Preheat
 Cycle
 Time 

Ignition
 l£ey ON 

Engine
 Not
 Running 
 Pestheat
 Cycle 

Ignition

Page 906 of 1502

DODGE TRUCK 1993  Service Repair Manual 
• 

FUEL
 SYSTEM
 14 - 87 
ENGINE
 WARM-UP 

• The PCM may start the air intake heater post-heat 
cycle depending on intake air temperature. If manifold  air temperature was at or below 15°C (59

Page 917 of 1502

DODGE TRUCK 1993  Service Repair Manual 
OVERDRIVE/OVER-RIDE 

SWITCH 

(AUTO
 ONLY)  CO 
oo 
c/3  -< 
 LSTARJERJ^
 _ j 

J9314-184 

5.91.
 DIESEL SYSTEM SCHEMATIC  •

Page 918 of 1502

DODGE TRUCK 1993  Service Repair Manual 
CAV 

WIRE 

COLOR  DESCRIPTION 
CAV 
WIRE 

COLOR  DESCRIPTION 

1  WT/BK 
WATER-IN-FUEL SENSOR  37 OVERDRIVE LAMP SIGNAL 
2  TN/BK 
COOLANT SENSOR (AUTOMATIC TRANSMISSION ONLY)  38 
3  RD  BATTERY

Page 1079 of 1502

DODGE TRUCK 1993  Service Repair Manual 
21
 - 78
 AUTOMATIC TRANSMISSION-32RH/36RH/37RH/42RH/46RH 

G1NERAL
 INFORMATION
 —42RH/46RH 

INDEX 

page 

Components Unique
 to
 Diesel Version
 of
 46RH
 . 81 
 Description
 78 

Fourth
 Gear

Page 1082 of 1502

DODGE TRUCK 1993  Service Repair Manual 
• 

AUTOMATIC
 TRANSMISSION—32RH/36RH/37RH/42RH/46RH
 21 - 81 
TORQUE
 CONVERTER 

A three element torque converter
 is
 used
 for all ap­

plications.
 The
 converter consists
 of the
 impeller