Liberty, Wrangler, 1997-2005

2.8L L4 VIN 5 Std 5

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Trouble Code: P0605



TCM Internal Problem

Possible Causes:



TCM has failed
 

Trouble Code: P0606



ECM CHECKSUM Error Or Deviation Error

Possible Causes:



ECM has failed
 
Intermittent condition
 

Trouble Code: P0607



ECM Internal Error

Possible Causes:



ECM has failed
 
Intermittent condition
 

Trouble Code: P0610



A/T Or M/T Miscoding Error

Possible Causes:



ECM needs to be reprogrammed
 
ECM has failed
 

Trouble Code: P0611



ECM Capacitor Voltage 1 Error

Possible Causes:



ECM has failed
 
Intermittent condition
 

Trouble Code: P0613



TCM Internal Problem

Possible Causes:



Ground circuit is open
 
TCM has failed
 

Trouble Code: P0615



Starter Relay Circuit Excessive Current Or Open Circuit

Possible Causes:



Intermittent condition
 
Starter Relay has failed
 
Ignition Switch Start output is open
 
Starter Relay control circuit is open, or is shorted to ground or to voltage
 
ECM has failed
 

Trouble Code: P0616



Starter Relay Circuit Short-To-Ground

Possible Causes:



Intermittent condition
 
Starter Relay has failed
 
Ignition Switch Start output is open
 
Starter Relay control circuit is open, or is shorted to ground or to voltage
 
ECM has failed
 

Trouble Code: P0617



Starter Relay Circuit Short

Possible Causes:



Intermittent condition
 
Starter Relay has failed
 
Ignition Switch Start output is open
 
Starter Relay control circuit is open, or is shorted to ground or to voltage
 
ECM 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: 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: P0641



Sensor Supply No. 1 Voltage Too High Or Too Low

Possible Causes:



Intermittent condition
 
Wiring problem in either circuit
 
APP Sensor No. 1 5v supply circuit is shorted to voltage (too high)
 
CMP Sensor 5v supply circuit is shorted to voltage (too high)
 
APP Sensor No. 1 5v supply circuit is shorted to ground (too low)
 
CMP Sensor 5v supply circuit is shorted to ground (too low)
 
APP Sensor or CMP Sensor has failed (too low)
 
ECM 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: P0651



Sensor Supply No. 2 Voltage Too High Or Too Low

Possible Causes:



Intermittent condition
 
Boost Pressure Sensor 5v supply circuit is shorted to voltage (too high)
 
Fuel Pressure Sensor 5v supply circuit is shorted to voltage (too high)
 
MAF Sensor 5v supply circuit is shorted to voltage (too high)
 
Boost Pressure Sensor 5v supply circuit is shorted to ground (too low)
 
Fuel Pressure Sensor 5v supply circuit is shorted to ground (too low)
 
MAF Sensor 5v supply circuit is shorted to ground (too low)
 
FP Sensor, BP Sensor or MAF Sensor has failed
 
ECM 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: P0670



Glow Plug Controller Circuit Malfunction

Possible Causes:



Glow Plug Module has failed
 
Glow Plug Module signal/control circuit is open or is shorted to ground or to voltage
 
Intermittent condition
 
ECM has failed
 

Trouble Code: P0671



Glow Plug Failure Or Short Circuit

Possible Causes:



Glow Plug has failed
 
Glow Plug control circuit is open or is shorted to ground or to voltage
 
Glow Plug Module has failed
 
Intermittent condition
 

Trouble Code: P0672



Glow Plug Failure Or Short Circuit

Possible Causes:



Glow Plug has failed
 
Glow Plug control circuit is open or is shorted to ground or to voltage
 
Glow Plug Module has failed
 
Intermittent condition
 

Trouble Code: P0673



Glow Plug Failure Or Short Circuit

Possible Causes:



Glow Plug has failed
 
Glow Plug control circuit is open or is shorted to ground or to voltage
 
Glow Plug Module has failed
 
Intermittent condition
 

Trouble Code: P0674



Glow Plug Failure Or Short Circuit

Possible Causes:



Glow Plug has failed
 
Glow Plug control circuit is open or is shorted to ground or to voltage
 
Glow Plug Module has failed
 
Intermittent condition
 

Trouble Code: P0683



Glow Plug Module Signal Circuit Malfunction

Possible Causes:



Glow Plug Module has failed
 
Glow Plug Module signal/control circuit is open or is shorted to ground or to voltage
 
Intermittent condition
 
ECM 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: P0697



Sensor Supply No. 3 Voltage Too High Or Too Low

Possible Causes:



Intermittent condition
 
5v supply circuit(s) shorted to voltage
 
APP Sensor has failed (too low)
 
Inlet Pressure Sensor has failed (too low)
 
ECM 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: 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:



Related DTCs will be present
 
Transmission temperature Sensor has failed
 
Intermittent wiring or connector problems
 
PCM has failed
 

Trouble Code: P0712



A/T Transmission Fluid Temperature Sensor Low Input

Possible Causes:



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

Trouble Code: P0713



A/T Transmission Fluid Temperature Sensor High Input

Possible Causes:



Related DTCs are present
 
TFT Sensor signal circuit is open or is shorted to voltage
 
TFT Sensor is damaged or has failed (it may be shorted)
 
Intermittent wiring or connector problems
 
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



TCM Input Speed Sensor Circuit Malfunction

Possible Causes:



ISS ground circuit is open or is shorted to voltage
 
ISS signal circuit is open, shorted to ground or to power
 
ISS Sensor is damaged or it has failed
 
Intermittent wiring or connector problems
 
PCM has failed
 

Trouble Code: P0720



TCM Output Speed Sensor Circuit Malfunction

Possible Causes:



OSS ground circuit is open or is shorted to voltage or to ground
 
Speed Sensor ground circuit is open, shorted to ground or to voltage
 
OSS Sensor is damaged or it has failed
 
Intermittent wiring or connector problems
 
PCM or TCM 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:



Related DTCs will be present
 
Internal transmission mechanical problems may exist
 
Intermittent gear ratio errors are present
 

Trouble Code: P0732



A/T Additional Gear Ratio Error In Second Gear

Possible Causes:



Related DTCs will be present
 
Transmission solenoid/pressure switch assembly has malfunctioned or failed
 
Internal transmission mechanical problems may exist
 
Intermittent gear ratio errors are present
 

Trouble Code: P0733



A/T Additional Gear Ratio Error In Third Gear

Possible Causes:



Related DTCs will be present
 
Transmission solenoid/pressure switch assembly has malfunctioned or failed
 
Internal transmission mechanical problems may exist
 
Intermittent gear ratio errors are present
 

Trouble Code: P0734



A/T Additional Gear Ratio Error In Fourth Gear

Possible Causes:



Related DTCs will be present
 
Transmission solenoid/pressure switch assembly has malfunctioned or failed
 
Internal transmission mechanical problems may exist
 
Intermittent gear ratio errors are present
 

 
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