Ram 1500, 2500, 3500, 2WD and 4WD, 2001-2005

5.9L L6 VIN 6 Auto 6

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Trouble Code: P0613



TCM Internal Failure

Possible Causes:



Turn the key off. Remove the TCM connector(s) and inspect the wiring harness connector pins and TCM pins for damaged, bent or missing pins. Make repairs as needed. Then perform the TCM Reset function. If the code resets, the PCM has failed.
 

Trouble Code: P0622



Generator Field Control Circuit Malfunction

Possible Causes:



Generator field control circuit is open or is shorted to ground
 
Generator field control circuit is shorted to system power (B+)
 
Generator field ground circuit is open
 
Generator is damaged or PCM has failed
 
PCM has failed
 

Trouble Code: P0627



Fuel Pump Relay Control Circuit Malfunction

Possible Causes:



Fuel pump relay control circuit is open or is shorted to ground
 
Fuel pump relay control circuit is shorted to system power (B+)
 
Fuel pump relay power circuit (fused ignition) circuit is open
 
Fuel pump relay is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0628



Fuel Pump Relay Control Circuit Malfunction

Possible Causes:



Fuel pump relay circuit is open, shorted to ground or to power
 
Fuel pump relay power circuit (fused ignition) circuit is open
 
Fuel pump relay is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0630



VIN Not Programmed Into The PCM

Possible Causes:



Reprogram the correct VIN into the PCM
 
PCM has failed
 

Trouble Code: P0632



Odometer Not Programmed Into The PCM

Possible Causes:



Reprogram the correct mileage into the PCM
 
PCM has failed
 

Trouble Code: P0633



SKIM Key Not Programmed Into The PCM

Possible Causes:



Reprogram the SKIM key into the PCM
 
PCM has failed
 

Trouble Code: P0642



Sensor Reference Voltage 1 Circuit Low

Possible Causes:



Primary 5v supply shorted to ground
 
Sensor is shorted to ground
 
5v Sensor has failed
 
PCM has failed
 

Trouble Code: P0643



Sensor Reference Voltage 1 Circuit High

Possible Causes:



Primary 5v supply shorted to battery voltage
 
PCM has failed
 

Trouble Code: P0645



A/C Clutch Relay Circuit Malfunction

Possible Causes:



Internally fused ignition switch output circuit is faulty
 
A/C relay clutch control circuit is open or it is shorted to ground
 
A/C relay clutch power supply (fused ignition) circuit is open
 
A/C relay is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0652



Sensor Reference Voltage 2 Circuit Low

Possible Causes:



Auxiliary 5v supply shorted to ground
 
Sensor is shorted to ground
 
CMP Sensor has failed
 
PCM has failed
 

Trouble Code: P0653



Sensor Reference Voltage 2 Circuit High

Possible Causes:



Auxiliary 5v supply shorted to battery voltage
 
PCM has failed
 

Trouble Code: P0660



Manifold Tune Valve Solenoid Circuit Malfunction

Possible Causes:



Fused B+ circuit has failed
 
MTV solenoid/relay circuit is open or it is shorted to ground
 
MTV solenoid/relay circuit is shorted to power
 
MTV solenoid/relay ground circuit is open
 
MTV solenoid/relay is damaged or it has failed
 
PCM has failed
 

Trouble Code: P0685



ASD Relay Control Circuit Malfunction

Possible Causes:



Fused B+ circuit faults
 
ASD relay connector is damaged, loose or shorted
 
ASD relay control circuit is open or it is shorted to ground
 
ASD power supply (fused B+) circuit is open
 
ASD relay is damaged, has high resistance, or it has failed
 
PCM has failed
 

Trouble Code: P0688



ASD Relay Sense Circuit Low

Possible Causes:



ASD relay output circuit is open
 
ASD power supply (fused B+) circuit is open
 
ASD relay is damaged or it has failed
 
Problem in fuse/relay center
 
PCM no start condition
 
PCM has failed
 

Trouble Code: P0700



Automatic Transmission Control System Malfunction

Possible Causes:



The presence of this code means the TCM detected a problem
 
TCM related Sensor has solenoid is damaged or has failed
 
This code is for information only - check for other TCM codes
 
TCM or PCM has failed
 

Trouble Code: P0703



A/T Brake Switch Sense Circuit Malfunction

Possible Causes:



Brake switch signal circuit or the switch ground circuit is open
 
Brake switch is damaged, out of adjustment or has failed
 
PCM has failed
 

Trouble Code: P0705



A/T Check Shifter Signal Circuit Malfunction

Possible Causes:



TR1, T3, T41 or T42 sense circuit is open
 
TR1, T3, T41 or T42 sense circuit is shorted to ground
 
TR1, T3, T41 or T42 Sensor circuit is shorted to system power
 
Transmission Range Sensor is damaged or has failed
 
PCM has failed
 

Trouble Code: P0706



A/T Check Shifter Signal Circuit Malfunction

Possible Causes:



Shifter out of adjustment
 
TRS T1, T3, T41 or T42 sense circuit is open, shorted to ground or to voltage
 
TRS Sensor has failed
 
Intermittent wiring or connector problems
 
PCM has failed
 

Trouble Code: P0711



A/T Transmission Fluid Temperature Sensor Signal - No Rise After Startup

Possible Causes:



TFT Sensor signal has an intermittent high resistance condition
 
TFT Sensor is damaged, skewed or has drifted out of range
 
PCM has failed
 

Trouble Code: P0712



A/T Transmission Fluid Temperature Sensor Low Input

Possible Causes:



TFT Sensor signal circuit is shorted to ground
 
TFT Sensor is damaged or has failed (it may be shorted)
 
PCM has failed
 

Trouble Code: P0713



A/T Transmission Fluid Temperature Sensor High Input

Possible Causes:



TFT Sensor signal circuit is open between the Sensor and PCM
 
TFT Sensor ground circuit is open between Sensor and PCM
 
TFT Sensor is damaged or has failed (it may be open internally)
 
PCM has failed
 

Trouble Code: P0714



A/T Transmission Fluid Temperature Sensor Intermittent

Possible Causes:



Related DTCs are present
 
TFT Sensor is damaged or has failed (it may be shorted)
 
Intermittent wiring or connector problems
 
PCM has failed
 

Trouble Code: P0715



A/T Input Speed Sensor Circuit Malfunction

Possible Causes:



ISS signal (+) circuit is open, shorted to ground or to power
 
ISS signal (-) circuit is open, shorted to ground or to power
 
ISS is damaged or has failed (it may be open internally)
 
Overdrive clutch drum lugs are damaged or missing
 
PCM has failed
 

Trouble Code: P0720



A/T Output Speed Sensor - Low Output Above 15 MPH

Possible Causes:



OSS signal (+) circuit is open, shorted to ground or to power
 
OSS signal (-) circuit is open, shorted to ground or to power
 
OSS is damaged or has failed (it may be open internally)
 
Parking pawl lugs damaged or missing
 
PCM has failed
 

Trouble Code: P0725



A/T Engine Speed Sensor Circuit Malfunction

Possible Causes:



Check for trouble codes related to the CKP Sensor
 
CKP Sensor signal circuit open, shorted to ground or to power
 
CKP Sensor is damaged or has failed (open or shorted)
 
Intermittent wiring or connector problems
 
PCM has failed
 

Trouble Code: P0731



A/T Additional Gear Ratio Error In First Gear

Possible Causes:



U/D and 2/4 pressures less than 105 psi
 
U/D or L/R clutch volume indexes out of specification
 
L/R accumulator seals are damaged or L/R switch valve stuck
 
L/R switch valve stuck in first gear position
 
Transmission has an internal leak (U/D or other seals leaking)
 

Trouble Code: P0732



A/T Additional Gear Ratio Error In Second Gear

Possible Causes:



U/D and L/R pressures less than 95 psi at 2000 rpm
 
U/D or 2/4 clutch volume indexes out of specification
 
L/R accumulator seals are damaged or L/R switch valve stuck
 
Transmission has an internal leak (U/D or 2/4 seals leaking)
 
L/R switch valve stuck in first gear position
 

Trouble Code: P0733



A/T Additional Gear Ratio Error In Third Gear

Possible Causes:



O/D and U/D pressures less than 75 psi
 
O/D or U/D clutch volume indexes out of specification
 
O/D accumulator seals are damaged
 
L/R switch valve stuck in first gear position
 
Transmission has an internal leak (U/D seals leaking)
 

Trouble Code: P0734



A/T Additional Gear Ratio Error In Fourth Gear

Possible Causes:



Customer may complain of intermittent 4th gear operation
 
O/D and 2/4 pressures less than 75 psi
 
O/D or 2/4 clutch volume indexes out of specification
 
O/D accumulator seals are damaged
 
Transmission enters "limp in" mode running in 4th gear
 

Trouble Code: P0735



A/T Gear Ratio Error Fourth Prime

Possible Causes:



Related Gear Ratio trouble codes may be stored (note that some of these Gear Ratio trouble codes may be intermittent)
 
Transmission has internal problems or damage present
 

Trouble Code: P0736



A/T Additional Gear Ratio Error In Reverse Gear

Possible Causes:



Customer may complain of intermittent Reverse gear operation
 
Related Gear Ratio trouble codes may be stored
 
Transmission has internal problems or damage present
 

Trouble Code: P0740



A/T Torque Converter Clutch - No RPM Drop At Lockup

Possible Causes:



Internal transmission component fault (Input or Reaction shaft)
 
Internal transmission leakage (valve body leaking or seal rings)
 
Converter clutch valve or clutch timing valve is sticking
 
TCC assembly has failed
 

Trouble Code: P0743



A/T Torque Converter Clutch Solenoid Circuit Failure

Possible Causes:



TCC power circuit is open between the solenoid and Fused B+
 
TCC solenoid control circuit is open or shorted to ground
 
TCC solenoid control circuit is shorted to system power
 
TCC solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0748



A/T Governor Pressure Solenoid/Transmission Relay Fault

Possible Causes:



A/T transmission relay power circuit is open (test power to B+)
 
A/T transmission relay is damaged or has failed
 
Governor pressure solenoid circuit is open or shorted to ground
 
Governor pressure solenoid is damaged or has failed
 
PCM has failed
 

Trouble Code: P0750



A/T Low/Reverse Solenoid Circuit Failure

Possible Causes:



L/R solenoid control circuit is open or shorted to ground
 
L/R solenoid control circuit is shorted to system power
 
L/R Solenoid is damaged or has failed
 
TCM or PCM has failed
 

Trouble Code: P0751



A/T Overdrive Switch Pressed Low For Over 5 Minutes

Possible Causes:



Overdrive Switch Off" circuit is shorted to ground
 
Overdrive Switch is damaged or has failed
 
PCM has failed
 

Trouble Code: P0753



A/T 3-4 Solenoid/Transmission Relay Circuit Failure

Possible Causes:



3-4 Solenoid control circuit is open or shorted to ground
 
3-4 Solenoid is damaged or has failed
 
Transmission relay power circuit is open (check the fused B+)
 
Transmission relay is damaged or has failed
 
PCM has failed
 

Trouble Code: P0755



A/T 2/4 Solenoid Circuit Failure

Possible Causes:



2/4 Solenoid control circuit is open or shorted to ground
 
2/4 Solenoid control circuit is shorted to system power
 
2/4 Solenoid is damaged or has failed
 
TCM or PCM has failed
 

Trouble Code: P0760



A/T Overdrive Solenoid Circuit Failure

Possible Causes:



O/D Solenoid control circuit is open, shorted to ground or power
 
O/D Solenoid is damaged or has failed
 
TCM relay power circuit to O/D solenoid is open (loss of B+)
 
TCM or PCM has failed
 

 
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