Jeep Grand Cherokee WK. Manual — part 1411
7. Install the accumulator pistons (1, 6-9) and springs into the valve body in the location from which they were
removed. Note that all accumulators except the overdrive have two springs. The overdrive accumulator piston (6)
has only one spring.
8. Position the accumulator cover onto the valve body.
9. Install the screws to hold the accumulator cover onto the valve body. Tighten the screws to 7 N·m (60 in. lbs.).
Valve Body Components
1 - LOW/REVERSE ACCUMULATOR
6 - OVERDRIVE ACCUMULATOR
2 - LOW/REVERSE SWITCH VALVE
7 - UNDERDRIVE ACCUMULATOR
3 - UPPER VALVE BODY
8 - 4C ACCUMULATOR
4 - MANUAL VALVE
9 - 2C ACCUMULATOR
5 - SOLENOID SWITCH VALVE
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AUTOMATIC TRANSMISSION - 545RFE - SERVICE INFORMATION
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10. Install the TRS selector plate (1) onto the valve
body and the manual valve.
11. Position the detent spring (2) onto the valve body.
12. Install the screw to hold the detent spring (2) onto
the valve body. Tighten the screw to 4.5 N·m (40
in. lbs.).
13. Install new clutch passage seals (3) onto the
valve body, if necessary.
14. Install the solenoid and pressure switch assembly
onto the valve body.
15. Install the bolts (1) to hold the solenoid and pres-
sure switch assembly onto the valve body. Tighten
the bolts to 5.7 N·m (50 in. lbs.). Tighten the bolts
adjacent to the arrows cast into the bottom of the
transfer plate first.
1 - TRS SELECTOR PLATE
2 - DETENT SPRING
3 - CLUTCH PASSAGE SEALS
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INSTALLATION
1. Check condition of seals on valve body and the
solenoid and pressure switch assembly. Replace
seals if cut or worn.
2. Place TRS selector plate in the PARK position.
3. Place the transmission in the PARK position.
4. Lubricate seal on the solenoid and pressure switch
assembly connector with petroleum jelly.
5. Position valve body in transmission and align the
manual lever on the valve body to the pin on the
transmission manual shift lever.
6. Seat valve body in case and install one or two
bolts to hold valve body in place.
7. Tighten valve body bolts alternately and evenly to
12 N·m (105 in. lbs.) torque.
CAUTION: The primary oil filter seal MUST be fully
installed flush against the oil pump body. DO NOT
install the seal onto the filter neck and attempt to
install the filter and seal as an assembly. Damage
to the transmission will result.
8. Install a new primary oil filter seal in the oil pump
inlet bore. Seat the seal in the bore with the butt
end of a hammer, or other suitable tool.
9. Place replacement filter (1) in position on valve
body and into the oil pump.
10. Install screw to hold filter to valve body. Tighten
screw to 4.5 N·m (40 in. lbs.) torque.
11. Connect the solenoid and pressure switch assem-
bly connector.
12. Install oil pan. Tighten pan bolts to 12 N·m (105 in. lbs.) torque.
13. Lower vehicle and fill transmission with Mopar
T
ATF +4.
14. Check and adjust gearshift cable, if necessary.
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AUTOMATIC TRANSMISSION NAG1 - ELECTRICAL
DIAGNOSTICS
TABLE OF CONTENTS
page
page
AUTOMATIC TRANSMISSION NAG1 -
ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
P0602-CONTROL MODULE PROGRAMMING
ERROR/NOT PROGRAMMED . . . . . . . . . . . 469
MODULE RAM . . . . . . . . . . . . . . . . . . . . . . . 471
MODULE ROM . . . . . . . . . . . . . . . . . . . . . . . 473
PROCESSOR . . . . . . . . . . . . . . . . . . . . . . . . 475
P0642-SENSOR REFERENCE VOLTAGE 1
CIRCUIT LOW . . . . . . . . . . . . . . . . . . . . . . . 477
P0643-SENSOR REFERENCE VOLTAGE 1
CIRCUIT HIGH . . . . . . . . . . . . . . . . . . . . . . . 480
CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
P0710-TRANSMISSION TEMPERATURE
SENSOR CIRCUIT . . . . . . . . . . . . . . . . . . . . 488
P0712-TRANSMISSION TEMPERATURE
SENSOR LOW . . . . . . . . . . . . . . . . . . . . . . . 492
P0714-TRANSMISSION TEMPERATURE
SENSOR INTERMITTENT . . . . . . . . . . . . . . 495
P0717-INPUT SPEED SENSOR 1 CIRCUIT
NO SIGNAL . . . . . . . . . . . . . . . . . . . . . . . . . 498
STUCK ON . . . . . . . . . . . . . . . . . . . . . . . . . . 516
P0748-MODULATOR PRESSURE SOLENOID
CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . 524
. . . . . . . . . . . . . . 529
P0753-1-2/4-5 SOLENOID CIRCUIT
. . . . . . . . . . . . . . . . . 538
. . . . . . . . . . . . . . . . . 548
CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . 558
SUPPLY/ WATCHDOG . . . . . . . . . . . . . . . . . 563
CLOCK PERFORMANCE . . . . . . . . . . . . . . . 566
P1632-TCM INTERNAL - TEST INTERNAL
WATCHDOG PERFORMANCE . . . . . . . . . . . 568
P1633-TCM INTERNAL - TEST EXTERNAL
WATCHDOG PERFORMANCE . . . . . . . . . . . 570
WATCHDOG PERFORMANCE . . . . . . . . . . . 572
WATCHDOG PERFORMANCE . . . . . . . . . . . 574
PERFORMANCE . . . . . . . . . . . . . . . . . . . . . 576
PERFORMANCE . . . . . . . . . . . . . . . . . . . . . 578
PERFORMANCE . . . . . . . . . . . . . . . . . . . . . 580
CONFIGURATION . . . . . . . . . . . . . . . . . . . . 582
OVERSPEED . . . . . . . . . . . . . . . . . . . . . . . . 584
OVERSPEED . . . . . . . . . . . . . . . . . . . . . . . . 587
P2638-TORQUE MANAGEMENT FEEDBACK
SIGNAL PERFORMANCE . . . . . . . . . . . . . . . 592
P2767-INPUT SPEED SENSOR 2 CIRCUIT
NO SIGNAL . . . . . . . . . . . . . . . . . . . . . . . . . 595
TEMPERATURE TOO HIGH . . . . . . . . . . . . . 602
CORRELATION . . . . . . . . . . . . . . . . . . . . . . 603
U0002-CAN C BUS OFF PERFORMANCE
ECM/PCM . . . . . . . . . . . . . . . . . . . . . . . . . . 609
ELECTRIC GEAR SHIFT MODULE . . . . . . . . 612
U0114-LOST COMMUNICATION WITH FINAL
DRIVE CONTROL MODULE . . . . . . . . . . . . . 615
ANTI-LOCK BRAKE MODULE . . . . . . . . . . . 618
FRONT CONTROL MODULE . . . . . . . . . . . . 621
CLUSTER/CCN . . . . . . . . . . . . . . . . . . . . . . 624
U0164-LOST COMMUNICATION WITH HVAC
CONTROL MODULE . . . . . . . . . . . . . . . . . . 627
U0401-IMPLAUSIBLE DATA RECEIVED
FROM ECM/PCM . . . . . . . . . . . . . . . . . . . . . 630
U0404-IMPLAUSIBLE DATA RECEIVED
FROM ESM . . . . . . . . . . . . . . . . . . . . . . . . . 632
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