DODGE RAM SRT-10 2006 Service Repair Manual

7.INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Use the Freeze Frame Data to help duplicate the conditions in which the DTC originally set. Pay particular attention
to the DTC set conditions, such as, VSS, MAP, ECT, and Load
Using the schematics as a guide, visually inspect the related wiring harness. Look for any chafed, pierced, pinched,
or partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken,bent, pushed out, or corroded terminals.
Wiggle the wiring and connectors while checking for any possible open or shorted circuits.
Check for any Service Information Tune-ups or Technical Service Bulletins that may apply.
Were there any problems found?
Ye s>>
Repair as necessary.
Perform RE TRANSMISSION VERIFICATION TEST VER - 1 (DIESEL). (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 48RE - STANDARD PROCEDURE)
No>>
Te s t C o m p l e t e .

*TOW /HAUL OVERDRIVE OFF SWITCH (DIESEL)
For a complete wiring diagramRefer to Section 8W

Theory of Operation
The tow/haul overdrive OFF (control) switch is located in the shift lever arm. The switch is a momentary contact
device that signals the ECM/PCM to toggle current status of the overdrive function. At ignition on, overdrive oper-
ation is allowed. Pressing the Tow/Haul Overdrive Off switch once causes the Tow/haul Overdrive OFF mode to be
entered and the Tow/Haul lamp to be illuminated. Pressing the switch a second time causes normal overdrive oper-
ationtoberestoredandtheTow/haullamptobeturnedoff.TheTow/haulOverdrive OFF mode defaults to ON after
the ignition switch is cycled OFF and ON. The normal position for the control switch is the ON position. The switch
must be in this position to energize the solenoid and allow a 3-4 upshift. The control switch indicator light illuminates
only when the Tow/haul Overdrive Off switch is turned to the OFF position, or when illuminated by the transmission
control module.
Possible Causes
TOW/HAUL OVERDRIVE OFF SWITCH SENSE CIRCUIT SHORT TO GROUND
TOW/HAUL OVERDRIVE OFF SWITCH
ENGINE CONTROL MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 8 - ELECTRI-
CAL/ELECTRONIC CONTROL MODULES/TRANSMISSION CONTROL MODULE - DIAGNOSIS AND TESTING)
Diagnostic Test
1.TOW/HAUL OVERDRIVE OFF SWITCH SENSE CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the ECM C2 harness connector.
Disconnect the Tow/Haul OverdriveOff switch harness connector.
Measure the resistance between ground and the Tow/Haul Overdrive
Off switch sense circuit in the ECM C2 harness connector.
Is the resistance below 5.0 ohms?
Ye s>>
Repair the Tow/Haul Overdrive Off switch sense circuit for a
short to ground.
Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (DIESEL). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)
No>>
Go To 2

2.CHECK THE TOW/HAUL OVERDRIVE OFF SWITCH
Reconnect the Tow/Haul Overdrive Off switch harness connector.
Measure the resistance between ground and the O/D Tow/Haul Switch
Sense circuit in the ECM C2 harness connector.
Press the Tow/Haul Overdrive Off switch button.
Does the resistance change from above 5.0 ohms to below 5.0
ohms while pressing the Tow/Haul Overdrive Off switch but-
ton?
Ye s>>
Using the schematics as a guide, check the Engine Control
Module (ECM) pins, terminals, and connectors for corrosion,
damage, or terminal push out. Pay particular attention to all
power and ground circuits. If no problems are found,
replace and program the ECM per the Service Information.
(Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MOD-
ULES/ENGINE CONTROL MODULE - REMOVAL)
Perform RE TRANSMISSION VERIFICATION TEST VER -
1 (DIESEL). (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE - STANDARD PROCEDURE)
No>>
Replace the Tow/Haul Overdrive Off switch per the Service
Information. (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - 48RE/OVERDRIVE SWITCH - REMOVAL)
STANDARD PROCEDURE

TRANSMISSION VERIFICATION TEST VER - 1 (DIESEL)
1.
1. Inspect the vehicle to ensure that all engine and transmission components are properly installed and connected.
Reassemble and reconnect components as necessary.
2. If any existing diagnostic trouble codes have not been repaired, go to Symptom List and follow path specified.
3. Connect a scan tool to the data link connector.
4. Ensure the fuel tank has at least a quarter tank of fuel. Turn off all accessories.
5. Start and run the engine until the transmission temperature is above 43°C(110°F).
6. Check the transmission fluid level per the Service Information. Adjustif necessary.
7. Road test the vehicle. Make 15 to 20 1-2, 2-3 and 3-4 up shifts. Perform these shifts from a standing start to 72
Kmh (45 mph) with a constant throttle opening of 20-25%.
8. Below 40 Kmh (25 mph), make 5 to 8 wide open throttle kick downs to 1st gear.Allow at least 5 seconds each
in 2nd and 3rd between each kick down.
9. For a specific DTC, drive the vehicle in accordance with the Symptom’s When Monitored and Set Conditions to
verify the repair.
10. If a DTC sets during the road test, return to the Symptom List and follow the path. If no DTC sets, the repair is
complete.
Are there any DTCs or symptoms remaining?
Ye s>>
Repair is not complete, refer to appropriate symptom.
No>>
Repair is complete.

PRE-DIAGNOSTIC CHECKOUT (DIESEL)
For a complete wiring diagramRefer to Section 8W
1.PRE-DIAGNOSTIC CHECKOUT
NOTE: Always perform diagnostics with a fully charged battery to avoid false symptoms.
NOTE: Low fluid level can be the cause of many transmission problems. If thefluid level is low locate and
repair the leak then check and adjust the fluid level per the Service Information.
With the scan tool, read engine DTC’s. Check and repair all engine DTCs prior to performing transmission symptom
diagnostics.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Repair as necessary.
Verify the flash level of the Engine Control Module. Some problems are corrected by software upgrades.
Check for any Service Information Tune-ups or Technical Service Bulletins that may apply.
Did any of the above checks or procedures correct the symptom?
Ye s>>
Repair is complete.
Perform RE TRANSMISSION VERIFICATION TEST VER - 1 (DIESEL). (Refer to 21 - TRANSMISSION/
TRANSAXLE/AUTOMATIC - 48RE - STANDARD PROCEDURE)
No>>
Refer to the Transmission category and perform the appropriate symptom(s).

page page
AUTOMATIC TRANSMISSION - 48RE - SERVICE
INFORMATION
DESCRIPTION ............................. 1268
OPERATION ............................... 1271
DIAGNOSIS AND TESTING
AUTOMATIC TRANSMISSION .............. 1277
PRELIMINARY ............................ 1277
ROAD TESTING .......................... 1277
HYDRAULIC PRESSURE TEST . ........... 1278
AIR TESTING TRANSMISSION CLUTCH
AND BAND OPERATION................... 1281
CONVERTER HOUSING FLUID LEAK ...... 1282
DIAGNOSIS CHARTS ..................... 1283
STANDARD PROCEDURE - ALUMINUM
THREAD REPAIR ......................... 1293
REMOVAL ................................. 1294
DISASSEMBLY ............................. 1298
CLEANING ................................. 1306
INSPECTION ............................... 1306
ASSEMBLY . ............................... 1307
INSTALLATION ............................. 1317
SCHEMATICS AND DIAGRAMS
HYDRAULIC SCHEMATICS ................ 1322
SPECIFICATIONS
TRANSMISSION .......................... 1336
SPECIAL TOOLS
RE TRANSMISSION ...................... 1339
ACCUMULATOR
DESCRIPTION ............................. 1341
OPERATION ............................... 1342
INSPECTION ............................... 1342
BANDS
DESCRIPTION ............................. 1343
OPERATION ............................... 1343
ADJUSTMENTS
ADJUSTMENT - BANDS ................... 1344
SYSTEM-BRAKE TRANSMISSION SHIFT
INTERLOCK
DESCRIPTION ............................. 1345
OPERATION ............................... 1345
DIAGNOSIS AND TESTING - BRAKE
TRANSMISSION SHIFT INTERLOCK ........ 1345
ADJUSTMENTS - BRAKE TRANSMISSION
SHIFT INTERLOCK ....................... 1345
GOVERNOR-ELECTRONIC
DESCRIPTION ............................. 1347
OPERATION ............................... 1348
REMOVAL ................................. 1349
INSTALLATION ............................. 1350SEAL-EXTENSION HOUSING
REMOVAL ................................. 1352
INSTALLATION ............................. 1352
FLUID AND FILTER
DIAGNOSIS AND TESTING
EFFECTS OF INCORRECT FLUID LEVEL . . . 1353
CAUSES OF BURNT FLUID ............... 1353
FLUID CONTAMINATION .................. 1353
STANDARD PROCEDURE
FLUID LEVEL CHECK ..................... 1353
FLUID AND FILTER REPLACEMENT ....... 1355
TRANSMISSION FILL ..................... 1357
CLUTCH-FRONT
DESCRIPTION ............................. 1358
OPERATION ............................... 1358
DISASSEMBLY . ............................ 1359
INSPECTION............................... 1360
ASSEMBLY................................ 1360
SERVO-FRONT
DESCRIPTION ............................. 1363
OPERATION ............................... 1363
DISASSEMBLY . ............................ 1364
CLEANING ................................. 1364
INSPECTION ............................... 1365
ASSEMBLY................................ 1365
CABLE-GEARSHIFT
DIAGNOSIS AND TESTING - GEARSHIFT
CABLE ................................... 1366
REMOVAL ................................. 1366
INSTALLATION ............................. 1367
ADJUSTMENTS - GEARSHIFT CABLE ........ 1368
PUMP-OIL
DESCRIPTION ............................. 1369
OPERATION ............................... 1369
DISASSEMBLY ............................. 1370
CLEANING ................................. 1371
INSPECTION ............................... 1371
ASSEMBLY................................ 1373
BEARING-OUTPUT SHAFT FRONT
REMOVAL ................................. 1375
INSTALLATION ............................. 1375
BEARING-OUTPUT SHAFT REAR
REMOVAL ................................. 1376
INSTALLATION ............................. 1376
CLUTCH-OVERDRIVE
DESCRIPTION ............................. 1377
OPERATION ............................... 1377
UNIT-OVERDRIVE
REMOVAL ................................. 1378
DISASSEMBLY ............................. 1379

CLEANING ................................. 1389
INSPECTION ............................... 1389
ASSEMBLY . ............................... 1390
INSTALLATION ............................. 1400
RETAINER-OVERRUNNING CLUTCH CAM/
OVERDRIVE PISTON
DESCRIPTION ............................. 1402
OPERATION ............................... 1402
DISASSEMBLY ............................. 1402
CLEANING ................................. 1403
INSPECTION ............................... 1403
ASSEMBLY . ............................... 1403
SHAFT-PLANETARY GEARTRAIN/OUTPUT
DESCRIPTION ............................. 1407
OPERATION ............................... 1407
DISASSEMBLY ............................. 1407
INSPECTION ............................... 1410
ASSEMBLY ................................ 1410
CLUTCH-REAR
DESCRIPTION ............................. 1416
OPERATION ............................... 1416
DISASSEMBLY ............................. 1417
CLEANING ................................. 1417
INSPECTION ............................... 1418
ASSEMBLY ................................ 1418
SERVO-REAR
DESCRIPTION ............................. 1421
OPERATION ............................... 1421
DISASSEMBLY ............................. 1421
CLEANING ................................. 1421
ASSEMBLY ................................ 1421
MECHANISM-SHIFT
DESCRIPTION ............................. 1422
OPERATION ............................... 1422
SENSOR-SPEED
DESCRIPTION ............................. 1423
OPERATION ............................... 1423
ACTUATOR-THROTTLE VALVE
DESCRIPTION ............................. 1424
REMOVAL ................................. 1424
INSTALLATION ............................. 1425
ADJUSTMENTS
ADJUSTMENT ............................ 1426
CABLE-THROTTLE VALVE
DESCRIPTION ............................. 1427ADJUSTMENTS - THROTTLE VALVE CABLE . . 1428
CONVERTER-TORQUE
DESCRIPTION ............................. 1431
OPERATION ............................... 1435
REMOVAL ................................. 1436
INSTALLATION ............................. 1437
VALVE-TORQUE CONVERTER DRAINBACK
DESCRIPTION
GAS ENGINES ........................... 1438
DIESEL ENGINE .......................... 1438
OPERATION
GAS ENGINES ........................... 1438
DIESEL ENGINE .......................... 1438
STANDARD PROCEDURE
GAS ENGINES ........................... 1438
DIESEL ENGINE .......................... 1438
SWITCH-TOW/HAUL OVERDRIVE
DESCRIPTION ............................. 1440
OPERATION ............................... 1440
DIAGNOSIS AND TESTING - OVERDRIVE
ELECTRICAL CONTROLS ................. 1440
REMOVAL ................................. 1440
INSTALLATION ............................. 1441
SENSOR-TRANSMISSION RANGE
DESCRIPTION ............................. 1442
OPERATION ............................... 1442
DIAGNOSIS AND TESTING - TRANSMISSION
RANGE SENSOR (TRS) ................... 1443
REMOVAL ................................. 1444
INSTALLATION ............................. 1445
SENSOR-TRANSMISSION TEMPERATURE
DESCRIPTION ............................. 1447
OPERATION ............................... 1447
BODY-VALVE
DESCRIPTION ............................. 1448
OPERATION ............................... 1451
REMOVAL ................................. 1471
DISASSEMBLY ............................. 1472
CLEANING ................................. 1485
INSPECTION ............................... 1485
ASSEMBLY................................ 1486
INSTALLATION ............................. 1497
ADJUSTMENTS - VALVE BODY .............. 1498

AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
DESCRIPTION

48RE Transmission