2006 DODGE RAM SRT-10 Service Repair Manual

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Page 3209 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 14.CHECK THE (T147) 2C PRESSURE SWITCH SENSE CIRCUIT FOR AN OPEN
Turn the ignition off to the lock position.
Remove the Transmission Simulator, Miller tool #8333.
Disconnect the PCM C4 harness connect

Page 3210 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 16.CHECK THE (T147) 2C PRESSURE SWITCH SENSE CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT
Disconnect all PCM harness connectors.
Disconnect the Transmission Solenoid/TRS Assembly harness connec-
tor.
NOTE:

16.CHECK THE (T147) 2C PRESSURE SWITCH SENSE CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT
Disconnect all PCM harness connectors.
Disconnect the Transmission Solenoid/TRS Assembly harness connec-
tor.
NOTE: Make sure the Transmission Solenoid/TRS Assembly har-
ness connector is disconnected.
Measure the resistance between the (T147) 2C Pressure Switch Sense
circuit and all other circuits in the Transmission Solenoid/TRS Assembly
harness connector.
Is the resistance below 5.0 ohms between the (T147) 2C Pres-
sure Switch Sense circuit and any other circuit(s) in the Trans-
mission Solenoid/TRS Assembly harness connector?
Ye s>>
Repair the (T147) 2C Pressure Switch Sense circuit for a
short to another circuit(s).
Perform 45RFE/545RFE TRANSMISSION VERIFICATION
TEST - VER 1.
No>>
Using the schematics as a guide, check the Powertrain Control Module (PCM)terminals for corrosion,
damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems
are found, replace the PCM per the Service Information. With the scan tool,perform QUICK LEARN.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
17.INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specifictothiscircuit.
Wiggle the wires while checking for shorted and open circuits.
With the scan tool, check the DTC EVENT DATA to help identify the conditionsin which the DTC was set.
If the DTC EVENT DATA shows the DTC P0845 set while the Line Pressure was significantly below the Desired
Line Pressure reading, check for causes of low line pressure (low fluid level, broken or mis-installed primary oil filter
or filter seal, sticking Main Regulator Valve in the Pump Valve Body etc.).IfthedatashowstheDTCsetwhilethe
Line Pressure reading was significantly higher than the Desired Line Pressure, check the Line Pressure Sensor and
related wiring.
Where there any problems found?
Ye s>>
Repair as necessary.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Te s t C o m p l e t e .

Page 3211 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual P0846-2C PRESSURE SWITCH RATIONALITY
For a complete wiring diagramRefer to Section 8W

Page 3212 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual When Monitored:
Continuously with the ignition on, engine running, with the transmissionin gear.
Set Condition:
The DTC is set if the 2C Pressure Switchreadsopenorclosedatthewrongtimein a given gear.

Page 3213 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 2.CHECK IF THE DTC DATA SHOWS THE CURRENT DTC
With the scan tool, check the DTC EVENT DATA.
Does the DTC EVENT DATA show data for DTC P0846?
Ye s>>
Go To 3
No>>
Refer to the Transmission category and

2.CHECK IF THE DTC DATA SHOWS THE CURRENT DTC
With the scan tool, check the DTC EVENT DATA.
Does the DTC EVENT DATA show data for DTC P0846?
Ye s>>
Go To 3
No>>
Refer to the Transmission category and perform the appropriate symptom shown in the DTC EVENT
DATA.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
3.CHECK IF MULTIPLE DTCS ARE PRESENT
With the scan tool, check for other transmission DTC’s.
Are there two or more related pressure switch rationality DTCs present in addition to P0846?
Ye s>>
Go To 4
No>>
Go To 7
4.CHECK IF ALL THE PRESSURE SWITCHES READ CLOSED
With the scan tool, check the DTC EVENT DATA for P0846.
NOTE: Make sure to record all DTC EVENT DATA stored in the scan tool for future reference in this test
procedure.
Do all the pressure switches read CLOSED in the DTC EVENT DATA for P0846?
Ye s>>
Refer to Transmission category and perform diagnostics for P0888.
No>>
Go To 5
5.CHECK IF ALL THE PRESSURE SWITCHES READ OPEN
In the DTC EVENT DATA recorded earlier,read the state of all pressure switches.
Do all the pressure switches read OPEN?
Ye s>>
Go To 6
No>>
Go To 7
6.CHECK FOR LOW LINE PRESSURE
In the DTC EVENT DATA recorded earlier,compare the Line Pressure and the Desired Line Pressure.
Is the Line Pressure less than 40 psi, and significantly below the Desired Line Pressure?
Ye s>>
Repair as necessary to correct low line pressure. Check fluid level and adjustasnecessary.Iffluidlevel
is OK, check the Primary Oil Filter seal for a split, crack, or improperly installed. If the filter and seal are
OK, check the Main Regulator Valve in the Oil Pump. Refer to the Service Information for the above
procedures.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Replace the Transmission Solenoid/TRS Assembly per the Service Information. (Refer to 21 - TRANS-
MISSION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE/TRANS SOLENOID/TRS ASSY -REMOVAL)
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)

Page 3214 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 7.CHECK IF THE DTC SET IN PARK, NEUTRAL, OR REVERSE
With the scan tool, check the DTC EVENT DATA for P0846.
NOTE: Make sure to record all DTC EVENT DATA stored in the scan tool for future reference in

7.CHECK IF THE DTC SET IN PARK, NEUTRAL, OR REVERSE
With the scan tool, check the DTC EVENT DATA for P0846.
NOTE: Make sure to record all DTC EVENT DATA stored in the scan tool for future reference in this test
procedure.
Does the DTC EVENT DATA show the DTC P0846 set in Park, Neutral, or Reverse?
Ye s>>
Go To 12
No>>
Go To 8
8.CHECK IF THE 2C PRESSURE SWITCH READS CLOSED
With the scan tool, check the DTC EVENT DATA for P0846.
Does the DTC EVENT DATA show the 2C Pressure Switch reading CLOSED?
Ye s>>
Go To 10
No>>
Go To 9
9.CHECK THE LINE PRESSURE
In the DTC EVENT DATA recorded earlier,compare the Line Pressure and the Desired Line Pressure.
Is the Line Pressure less than 40 psi, and significantly below the Desired Line Pressure?
Ye s>>
Repair as necessary to correct low line pressure. Check fluid level and adjustasnecessary.Iffluidlevel
is OK, check the Primary Oil Filter seal for a split, crack, or improperly installed. If the filter and seal are
OK, check the Main Regulator Valve in the Oil Pump. Refer to the Service Information for the above
procedures.
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1. (Refer to 21- TRANSMIS-
SION/TRANSAXLE/AUTOMATIC - 45RFE/545RFE - STANDARD PROCEDURE)
No>>
Go To 15
10.CHECK THE PCM AND WIRING
Turn the ignition off to the lock position.
Remove the Ignition Switch Feed fuse from the TIPM.
CAUTION: Removal of the Ignition Switch Feed fuse from the TIPM will prevent the vehicle from being
startedingear.
WARNING: The Ignition Switch Feed fuse must be removed from the TIPM. Failure to do so can result in
personal injury or death.
Install the Transmission Simulator, Miller tool #8333.
Ignition on, engine not running.
With the Transmission Simulator, turn the Pressure Switch selector switchtothe2Cposition.
With the scan tool, monitor the 2C Pressure Switch while pressing the Pressure Switch test button on the Trans-
mission Simulator.
Did the state of the 2C Pressure Switch change while pressing the Pressure Switch Test button?
Ye s>>
Go To 11
No>>
Go To 12

Page 3215 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 11 .CHECK THE TRANSMISSION SOLENOID/TRS ASSEMBLY
Using the schematics as a guide, inspect the wiring and connectors specifictothiscircuit.
Wiggle the wires while checking for shorted and open circuits

Page 3216 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 13.CHECK THE (T147) 2C PRESSURE SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND
Measure the resistance between ground and the (T147) 2C Pressure
Switch Sense circuit.
Is the resistance below 5.0 ohms?
Ye s

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