Dodge Ram Truck 1500-2500-3500. Manual — part 1590

7. Remove seal from transmission adapter.

8. Clean and inspect all sealing surfaces for wear or

damage.

9. Lift cluster shaft slightly and remove input shaft

from transmission.

10. Remove input shaft bearing with Splitter P-334

and a press.

INSTALLATION

1. Install new seal from the fluid side with Installer

9366.

2. Install input shaft bearing on shaft with Installer

6052 and Installer MB-991317.

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MANUAL TRANSMISSION - T56 - SERVICE INFORMATION

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3. Install new bearing cup in front adapter withl origi-

nal shim behind cup.

4. Clean sealing surfaces of the transmission case

and adapter plate.

5. Install new input shaft and adapter plate (without

any Mopar Gasket Maker).

6. Check output shaft end play. It should be the same

as measured during the disassemble procedure. If
end play is greater than original reading, install a
thicker shim. If end play is less than original read-
ing, install a thinner shim.

7. After the correct shim has been installed, remove

the adapter plate and apply Mopar Gasket Maker
to the sealing surfaces.

8. Install adapter and tighten adapter bolts to 34 N·m

(25 ft. lbs.).

9. Install transmission.

SOLENOID-REVERSE LOCKOUT

DESCRIPTION

The reverse lockout solenoid prevents shifting into reverse when the vehicle speed is greater than 3 mph. Solenoid
is threaded into the left side of the transmission.

OPERATION

When vehicle speed is less than 5 mph, the PCM provides a ground for the solenoid (energized) and allows shifting.
When vehicle speed is greater than 5 mph, the solenoid is deactivated and prevents the transmission from being
shifted into reverse.

SOLENOID-REVERSE LOCK-OUT

DESCRIPTION

The reverse lockout solenoid prevents the operator from shifting into reverse when the vehicle speed is greater than
5 mph. The solenoid is threaded into the left side of the transmission.

OPERATION

When vehicle speed is less than 5 mph, the PCM provides a ground for the solenoid (energized) and allows shifting.
When vehicle speed is greater than 5 mph, the solenoid is deactivated and prevents the transmission from being
shifted into reverse.

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MANUAL TRANSMISSION - T56 - SERVICE INFORMATION

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AUTOMATIC TRANSMISSION - 545RFE - ELECTRICAL

DIAGNOSTICS

TABLE OF CONTENTS

page

page

AUTOMATIC TRANSMISSION - 545RFE -

ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING

PRE-DIAGNOSTIC CHECK OUT

. . . . . . . . . 296

P0122-TPS/APP CIRCUIT LOW

. . . . . . . . . . 297

P0123- TPS/APP CIRCUIT HIGH

. . . . . . . . . 299

P0124-TPS/APP INTERMITTENT

. . . . . . . . . 301

P0218-HIGH TEMPERATURE OPERATION

ACTIVATED . . . . . . . . . . . . . . . . . . . . . . . . . 303

P0562-BATTERY VOLTAGE LOW

. . . . . . . . . 304

P0602-CONTROL MODULE PROGRAMMING

ERROR/NOT PROGRAMMED . . . . . . . . . . . 309

P0604-INTERNAL CONTROL

MODULE RAM . . . . . . . . . . . . . . . . . . . . . . . 310

P0605-INTERNAL CONTROL

MODULE ROM . . . . . . . . . . . . . . . . . . . . . . . 311

P0613-INTERNAL TCM

. . . . . . . . . . . . . . . . 312

P0706-TRANSMISSION RANGE SENSOR

RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . 313

P0711-TRANSMISSION TEMPERATURE

SENSOR PERFORMANCE . . . . . . . . . . . . . . 317

P0712-TRANSMISSION TEMPERATURE

SENSOR LOW . . . . . . . . . . . . . . . . . . . . . . . 320

P0713-TRANSMISSION TEMPERATURE

SENSOR HIGH . . . . . . . . . . . . . . . . . . . . . . 324

P0714-TRANSMISSION TEMPERATURE

SENSOR INTERMITTENT . . . . . . . . . . . . . . 328

P0715-INPUT SPEED SENSOR 1 CIRCUIT

. 331

P0720-OUTPUT SPEED SENSOR CIRCUIT

. 337

P0725-ENGINE SPEED SENSOR CIRCUIT

. 344

P0731-GEAR RATIO ERROR IN 1ST

. . . . . . 346

P0732-GEAR RATIO ERROR IN 2ND

. . . . . . 349

P0733-GEAR RATIO ERROR IN 3RD

. . . . . . 355

P0734-GEAR RATIO ERROR IN 4TH

. . . . . . 361

P0735-GEAR RATIO ERROR IN 5TH

. . . . . . 365

P0736-GEAR RATIO ERROR IN REVERSE

. 368

P0740–TCC OUT OF RANGE

. . . . . . . . . . . 371

P0750-LR SOLENOID CIRCUIT

. . . . . . . . . . 374

P0755-2C SOLENOID CIRCUIT

. . . . . . . . . . 378

P0760-OD SOLENOID CIRCUIT

. . . . . . . . . . 382

P0765-UD SOLENOID CIRCUIT

. . . . . . . . . . 386

P0770-4C SOLENOID CIRCUIT

. . . . . . . . . . 390

P0841-LR PRESSURE SWITCH

RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . 394

P0845-2C HYDRAULIC PRESSURE TEST

. . 402

P0846-2C PRESSURE SWITCH

RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . 410

P0868-LINE PRESSURE LOW

. . . . . . . . . . . 417

P0869-LINE PRESSURE HIGH

. . . . . . . . . . . 423

P0870-OD HYDRAULIC PRESSURE TEST

. 429

P0871-OD PRESSURE SWITCH

RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . 438

P0875-UD HYDRAULIC PRESSURE TEST

. . 447

P0876-UD PRESSURE SWITCH

RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . 455

P0884-POWER UP AT SPEED

. . . . . . . . . . . 463

P0888-TRANSMISSION RELAY

ALWAYS OFF . . . . . . . . . . . . . . . . . . . . . . . . 465

P0890-SWITCHED BATTERY

. . . . . . . . . . . . 471

P0891-TRANSMISSION RELAY

ALWAYS ON . . . . . . . . . . . . . . . . . . . . . . . . . 475

P0932-LINE PRESSURE SENSOR CIRCUIT

. 480

P0934-LINE PRESSURE SENSOR CIRCUIT

LOW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484

P0935-LINE PRESSURE SENSOR CIRCUIT

HIGH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489

P0944-LOSS OF HYDRAULIC

PUMP PRIME . . . . . . . . . . . . . . . . . . . . . . . . 494

P0987-4C HYDRAULIC PRESSURE TEST

. . 497

P0988-4C PRESSURE SWITCH

RATIONALITY . . . . . . . . . . . . . . . . . . . . . . . 505

P1684-BATTERY WAS DISCONNECTED

. . . 512

P1715-RESTRICTED MANUAL VALVE IN T3

RANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514

P1736-GEAR RATIO ERROR IN

2ND PRIME . . . . . . . . . . . . . . . . . . . . . . . . . 516

P1775-SOLENOID SWITCH VALVE

LATCHED IN TCC POSITION . . . . . . . . . . . . 522

P1776-SOLENOID SWITCH VALVE

LATCHED IN LR POSITION . . . . . . . . . . . . . 526

P1790-FAULT IMMEDIATELY AFTER SHIFT

. 531

P1794-SPEED SENSOR GROUND ERROR

. 532

P2700-INADEQUATE ELEMENT

VOLUME LR . . . . . . . . . . . . . . . . . . . . . . . . 537

P2701-INADEQUATE ELEMENT

VOLUME 2C . . . . . . . . . . . . . . . . . . . . . . . . 539

P2702-INADEQUATE ELEMENT VOLUME

OD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541

P2703- INADEQUATE ELEMENT VOLUME

UD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 543

P2704-INADEQUATE ELEMENT

VOLUME 4C . . . . . . . . . . . . . . . . . . . . . . . . 545

P2706-MS SOLENOID CIRCUIT

. . . . . . . . . . 547

45RFE/545RFE TRANSMISSION

VERIFICATION TEST - VER 1 . . . . . . . . . . . 551

SCHEMATICS AND DIAGRAMS

. . . . . . . . . . . 552

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DIAGNOSIS AND TESTING

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