Page 4017 of 5267

7. Lubricate solenoid case connector (1) O-rings and
shaft of manual lever with light coat of petroleum
jelly.
8. Attach solenoid case connector to 3-4 accumulator
with shoulder-type screw. Connector has small
locating tang that fits indimple at top of accumula-
tor housing (2). Seat tang in dimple before tighten-
ing connector screw.
9. Install solenoid assembly and gasket. Tighten sole-
noid attaching screws to 8 Nꞏm (72 in. lbs.) torque.
10. Verify that solenoid wire harness is properly
routed. Solenoid harness must be clear of manual
lever and park rod and not be pinched between
accumulator housing and cover.
11. Position line pressure adjusting screw in adjusting
screw bracket.
12. Install switch valve spring on tang at end of
adjusting screw bracket.
13. Position adjusting screw bracket on valve body.
Align valve springs and press bracket into place.
Install short, upper bracket screws first and long
bottom screw last. Verify that valve springs and
bracket are properly aligned. Then tighten all
three bracket screws to 4 Nꞏm (35 in. lbs.) torque.
14. Perform Line Pressure and Throttle Pressure
adjustments. (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC/VALVE BODY - ADJUSTMENTS)
GOVERNOR BODY, SENSOR AND SOLENOID
1. Turn valve body assembly over so accumulator side of transfer plate is facing down.
2. Install new O-rings on governor pressure solenoid and sensor.
3. Lubricate solenoid and sensor O-rings with clean transmission fluid.
4. Install governor pressure sensor in governor body.
5. Install governor pressure solenoid in governor body. Push solenoid in until it snaps into place in body.
6. Position governor body gasket on transfer plate.
7. Install retainer plate on governor body and around solenoid. Be sure solenoid connector is positioned in retainer
cutout.
8. Align screw holes in governor body and transfer plate. Then install and tighten governor body screws to 4 Nꞏm
(35 in. lbs.) torque.
9. Connect harness wires to governor pressure solenoid and governor pressure sensor.
10. Install fluid filter and pan.
11. Lower vehicle.
12. Fill transmission with recommended fluid and road test vehicle to verify repair.
Page 4018 of 5267

INSTALLATION
1. Check condition of O-ring seals (1) on valve body
harness connector (2). Replace seals on connector
body if cut or worn.
2. Check condition of manual lever shaft seal (2) in
transmission case. Replace seal if lip is cut or
worn. Install new seal with 15/16 deep well socket
(1).
3. Check condition of seals on accumulator piston. Install new piston seals, if necessary.
4. Place valve body manual lever in low (1 position) so ball on park lock rod will be easier to install in sprag.
5. Lubricate shaft of manual lever with petroleum jelly. This will ease inserting shaft through seal in case.
6. Lubricate seal rings on valve body harness connector with petroleum jelly.
7. Position valve body in case and work end of park lock rod into and through pawl sprag. Turn propeller shaft to
align sprag and park lock teeth if necessary. The rod will click as it enterspawl. Move rod to check engagement.
CAUTION: It is possible for the park rod to displace into a cavity just abovethe pawl sprag during instal-
lation. Make sure the rod is actually engaged in the pawl and has not displaced into this cavity.
8. Install accumulator spring and piston into case. Then swing valve body overpistonandouterspringtoholditin
place.
9. Align accumulator piston and outer spring, manual lever shaft and electrical connector in case.
10. Then seat valve body in case and install one or two bolts to hold valve bodyinplace.
11. Tighten valve body bolts alternately and evenly to 11 Nꞏm (100 in. lbs.)torque.
12. Install new fluid filter on valve body. Tighten filter screws to 4 Nꞏm (35 in. lbs.) torque.
13. Install throttle and gearshift levers on valve body manual lever shaft.
14. Check and adjust front and rear bands if necessary.
15. Install the transmission range sensor (Refer to 21 - TRANSMISSION/AUTOMATIC/TRANSMISSION RANGE
SENSOR - INSTALLATION).
16. Connect solenoid case connector wires.
17. Install oil pan and new gasket. Tighten pan bolts to 13.6 Nꞏm (125 in. lbs.) torque.
18. Lower vehicle and fill transmission with Mopar
ATF +4, Automatic Transmission fluid.
Page 4019 of 5267

19. Check and adjust gearshift and throttle valve cables, if necessary.
ADJUSTMENTS - VALVE BODY
CONTROL PRESSURE ADJUSTMENTS
There are two control pressure adjustments on the valve body;
Line Pressure
Throttle Pressure
Line and throttle pressures are interdependent because each affects shift quality and timing. As a result, both
adjustments must be performed properly and in the correct sequence. Adjust line pressure first and throttle pressure
last.
LINE PRESSURE ADJUSTMENT
1. Measure distance (2) from the valve body to the
inner edge of the adjusting screw with an accurate
steel scale. Distance should be 33.4 mm (1-5/16
in.). If adjustment is required, turn the adjusting
screw in, or out, to obtain required distance setting.
NOTE: The 33.4 mm (1-5/16 in.) setting is an
approximate setting. Manufacturing tolerances
may make it necessary to vary from this dimen-
sion to obtain desired pressure.
One complete turn of the adjusting screw changes line
pressure approximately 1-2/3 psi (9 kPa).
Turning the adjustingscrew counterclockwise
increases pressure while turning the screw clockwise
decreases pressure.
THROTTLE PRESSURE ADJUSTMENT
1. Insert Gauge Tool C-3763 between the throttle
lever cam and the kickdown valve stem (2).
2. Push the gauge tool inward to compress the kick-
down valve against the spring and bottom the throt-
tle valve.
3. Maintain pressure against kickdown valve spring.
Turn throttle lever stop screw until the screw head
touches throttle lever tang and the throttle lever
cam touches gauge tool.
NOTE: The kickdown valve spring must be fully
compressed and the kickdown valve completely
bottomed to obtain correct adjustment.
Page 4020 of 5267

page page
TRANSFER CASE - ELECTRICAL
DIAGNOSTICS
DIAGNOSIS AND TESTING
C1401- TRANSFER CASE RANGE SELECT
SWITCH CIRCUIT LOW. .................. 1501
C1402- TRANSFER CASE RANGE SELECT
SWITCH CIRCUIT HIGH................... 1506
C1404- TRANSFER CASE RANGE
POSITION SENSOR CIRCUIT LOW......... 1511
C1405- TRANSFER CASE RANGE
POSITION SENSOR CIRCUIT HIGH........ 1515
C1407- TRANSFER CASE BRAKE
CONTROL CIRCUIT LOW.................. 1520
C1408-TRANSFER CASE BRAKE CONTROL
CIRCUIT HIGH............................ 1523
C140B- TRANSFER CASE MOTOR
CONTROL CIRCUIT LOW.................. 1526C140C - TRANSFER CASE MOTOR
CONTROL CIRCUIT HIGH................. 1531
C140D - TRANSFER CASE MOTOR
CONTROL CIRCUIT OPEN................. 1536
C1464-FRONT AXLE DISCONNECT
CONTROL CIRCUIT LOW.................. 1540
C1465-FRONT AXLE DISCONNECT
CONTROL CIRCUIT HIGH................. 1544
C1468-FRONT AXLE DISCONNECT
RETURN CONTROL CIRCUIT LOW......... 1548
C1469-FRONT AXLE DISCONNECT
RETURN CONTROL CIRCUIT HIGH........ 1553
C146A–FRONT AXLE DISCONNECT
RETURN CONTROL CIRCUIT OPEN........ 1557
STANDARD PROCEDURE
TRANSFER CASE VERIFICATION TEST .... 1562
Page 4021 of 5267
TRANSFER CASE - ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
Page 4022 of 5267
C1401- TRANSFER CASE RANGE SELECT SWITCH CIRCUIT LOW
For a complete wiring diagramRefer to Section 8W
Page 4023 of 5267
When Monitored:
With the ignition on.
Set Condition:
Transfer Case Range Select Switch voltage less than 0.1568 volts for 5 seconds
Possible Causes
(K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT OPEN
(K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT SHORTED TO GROUND
(K977) MODE SELECT CIRCUIT OPEN
(K977) MODE SELECT CIRCUIT SHORT TO GROUND
TRANSFER CASE SELECTOR SWITCH
INSTRUMENT CLUSTER
Diagnostic Test
1.TRANSFER CASE SWITCH VOLTAGE LESS THAN 0.2 VOLTS
Ignition on, engine not running.
With the scan tool under Instrument Cluster, read the Transfer Case Switchvoltage.
Is the voltage less than 0.2 volts?
Ye s>>
Go To 2
No>>
Go To 8
2.(K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT VOLTAGE LESS THAN 0.2 VOLTS
Turn the ignition off to the lock position.
Disconnect the Transfer Case Selector Switch harness connector.
Ignition on, engine not running.
Measure the voltage of the (K77) 5 Volt Selector Switch Supply circuit.
Is the voltage less than 0.2 volts?
Ye s>>
Go To 3
No>>
Go To 5
Page 4024 of 5267

3.(K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT OPEN
Turn the ignition off to the lock position.
Disconnect the Instrument Cluster C4 connector.
Measure the resistance of the (K77) 5 Volt Selector Switch Supply cir-
cuit between the Instrument Cluster C4 harness connector and the
Transfer Case Selector Switch harness connector.
Is the resistance greater than 5.0 ohms?
Ye s>>
Repair the (K77) 5 Volt Selector Switch Supply circuit for an
open.
Perform the TRANSFER CASE VERIFICATION TEST-VER
1. (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER
CASE - STANDARD PROCEDURE)
No>>
Go To 4
4.(K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT SHORTED TO GROUND
Measure the resistance between ground and the (K77) 5 Volt Selector
Switch Supply circuit.
Is the resistance less than 5.0 ohms?
Ye s>> Perform the TRANSFER CASE VERIFICATION TEST-
VER 1. (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER
CASE - STANDARD PROCEDURE)
No>>
Replace the Instrument Cluster in accordance with the Ser-
vice Information.
Perform the BODY VERIFICATION TEST-VER 1 (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE) and TRANSFER CASE VERI-
FICATION TEST-VER 1 (Refer to 21 - TRANSMISSION/
TRANSAXLE/TRANSFER CASE - STANDARD
PROCEDURE).