Liberty, Wrangler, 1997-2005

2.8L L4 VIN 5 Auto 8

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Trouble Code: P1694



No PCM Bus Messages

Possible Causes:



Data Bus circuit connector is damaged, open or it is shorted
 
Data Bus circuit to the PCM is damaged or it is open
 
PCM unable to communicate with the body control module
 
Intermittent wiring or connector problems exist
 
PCM has failed
 

Trouble Code: P1695



No BCM Bus Messages

Possible Causes:



Data Bus circuit from BCM to the PCM is damaged or it is open
 
BCM is damaged or has failed
 
TCM unable to communicate with the TCM
 
TCM has failed
 

Trouble Code: P1696



PCM EEPROM Write Operation Denied/Invalid

Possible Causes:



DRB or scan tool displays a "write" failure occurred
 
DRB or scan tool displays "write" refused a second time
 
DRB or scan tool displays SRI mileage invalid (compare the SRI mileage reading to the reading on the odometer)
 
PCM has failed
 

Trouble Code: P1697



PCM Failure (EMR/SRI Mileage Not Stored)

Possible Causes:



Clear the trouble codes and retest for the same trouble code. If DTC P1697 resets, replace the PCM and then reprogram it.
 

Trouble Code: P1715



Restricted Port in T3 Range

Possible Causes:



Improper customer driving habits
 
Misadjusted shifter
 

Trouble Code: P1775



A/T Solenoid Switch Latched In TCC Position

Possible Causes:



Related DTC P0841 may be present.
 
Intermittent wiring or connector problems
 
Extremely low battery (system) voltage
 
L/R Solenoid pressure switch circuit is open or switch has failed
 
Transmission solenoid pack is damaged or has failed
 
Transmission control relay circuit is shorted to L/R solenoid
 
Valve body engine idle too high
 
Valve body solenoid switch stuck in "lockup" position
 
PCM has failed
 

Trouble Code: P1776



A/T Solenoid Switch Latched In Low/Reverse Position

Possible Causes:



Related DTC P0841 may be present.
 
Intermittent wiring or connector problems
 
L/R pressure switch sense circuit is open, shorted to ground or to voltage
 
Extremely low battery (system) voltage
 
Transmission pan has debris caused by valve body damage
 
Transmission internal problems, SSV sticking, or valve body damage
 
PCM has failed
 

Trouble Code: P1790



A/T Malfunction Immediately After Shift Event

Possible Causes:



Transmission internal mechanical problem
 

Trouble Code: P1793



TCM TRD Link Communication Error

Possible Causes:



Torque Management Request (TMR) sense circuit is open or is shorted to ground or to voltage
 
PCM or TCM has failed
 
Intermittent wiring and connector problems
 

Trouble Code: P1794



A/T Speed Sensor Ground Circuit Malfunction

Possible Causes:



Extremely low battery (system) voltage
 
TCM "reset" function has just been performed
 

Trouble Code: P1797



A/T Manual Shift Overheat Malfunction

Possible Causes:



ATF fluid level too high (transmission may be overfilled)
 
Engine Cooling System or engine cooling fan malfunction
 
Excessive drive time in low gear, or aggressive drive patterns
 
Transmission oil cooler is clogged or restricted
 

Trouble Code: P2074



Manifold Pressure/Throttle Position Correlation; High Flow/Vacuum Leak

Possible Causes:



Vacuum leak in hoses or component connections
 
High resistance or resistance to ground in MAP 5v supply or signal circuit
 
MAP Sensor has failed
 
High resistance in MAP ground circuit
 
TP Sensor has failed or is improperly adjusted
 
High resistance or resistance to ground in TP Sensor 5v supply or signal circuit
 
High resistance in TP Sensor ground circuit
 
PCM has failed
 

Trouble Code: P2096



Downstream Fuel System 1/2 Lean

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor has failed
 
O2 Sensor signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2097



Downstream Fuel System 1/2 Rich

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor No. 1/2 has failed
 
O2 Sensor No. 1/2 signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2098



Downstream Fuel System 2/2 Lean

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor No. 2/2 has failed
 
O2 Sensor No. 2/2 signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2099



Downstream Fuel System 2/2 Rich

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor No. 2/2 has failed
 
O2 Sensor No. 2/2 signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2101



EGR Airflow Control Valve Excessive Current Or Open Circuit

Possible Causes:



Intermittent condition
 
ASD Relay Output circuit is open
 
EGR Airflow Control Valve has failed
 
EGR Airflow Control Valve control circuit is open, shorted to voltage or to ground
 
ECM has failed
 

Trouble Code: P2120



APP Sensor No. 1 Circuit Plausibility Or Signal Voltage Too High Or Too Low

Possible Causes:



APP Sensor has failed
 
APP Sensor No. 1 5v supply circuit is open, shorted to ground, to voltage, or shorted to Sensor ground
 
APP Sensor ground circuit or signal circuit is open
 
Intermittent condition
 
APP Sensor signal circuit is shorted to the Sensor ground circuit
 
ECM has failed
 

Trouble Code: P2125



APP Sensor No. 2 Circuit Plausibility Or Signal Voltage Too High Or Too Low

Possible Causes:



APP Sensor has failed
 
APP Sensor No. 1 5v supply circuit is open, shorted to ground, to voltage, or shorted to Sensor ground
 
APP Sensor ground circuit or signal circuit is open
 
Intermittent condition
 
APP Sensor signal circuit is shorted to the Sensor ground circuit
 
ECM has failed
 

Trouble Code: P2141



EGR Airflow Control Valve Short-To-Ground Circuit

Possible Causes:



Intermittent condition
 
ASD Relay Output circuit open
 
EGR Airflow Control Valve has failed
 
EGR Airflow Control Valve control circuit is open, shorted to ground
 
ECM has failed
 

Trouble Code: P2142



EGR Airflow Control Valve Short Circuit

Possible Causes:



Intermittent condition
 
EGR Airflow Control Valve has failed
 
EGR Airflow Control Valve control circuit is shorted to voltage
 
ECM has failed
 

Trouble Code: P2147



Fuel Injector Bank 1 Open Circuit

Possible Causes:



Intermittent condition
 
Fuel injector control circuit is open or is shorted to ground
 
Fuel injector has failed
 
ECM has failed
 

Trouble Code: P2148



Fuel Injector Bank 1 Short Circuit

Possible Causes:



Intermittent condition
 
Fuel injector control circuit is shorted to ground or to voltage
 
Fuel injector control circuits are shorted together
 
Fuel injector has failed
 
ECM has failed
 

Trouble Code: P2150



Fuel Injector Bank 2 Open Circuit

Possible Causes:



Intermittent condition
 
Fuel injector control circuit is open or is shorted to ground
 
Fuel injector has failed
 
ECM has failed
 

Trouble Code: P2226



ECM Barometric Pressure Error

Possible Causes:



ECM has failed
 
Intermittent condition
 

Trouble Code: P2264



Water In Fuel Voltage Above Upper Limit Or Below Lower Limit

Possible Causes:



Intermittent condition
 
WIF Sensor signal circuit is open or is shorted to voltage (high) or to ground (low)
 
WIF Sensor ground circuit is open
 
WIF Sensor signal and ground circuits are shorted together (low)
 
WIF Sensor has failed
 
FCM has failed (low)
 
ECM has failed (high)
 

Trouble Code: P2294



Fuel Pressure Solenoid Short-To-Ground Circuit

Possible Causes:



FP Solenoid circuit(s) open, shorted to voltage, shorted to ground, or shorted together
 
Intermittent condition
 
FP Solenoid has failed
 
ECM has failed
 

Trouble Code: P2296



Fuel Pressure Solenoid Short Circuit

Possible Causes:



FP Solenoid circuit(s) open, shorted to voltage, shorted to ground, or shorted together
 
Intermittent condition
 
FP Solenoid has failed
 
ECM has failed
 

Trouble Code: P2302



Ignition Coil No. 1 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 1 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 1 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2305



Ignition Coil No. 2 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 2 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 2 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2308



Ignition Coil No. 3 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 3 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 3 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2311



Ignition Coil No. 4 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 4 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 4 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2314



Ignition Coil No. 5 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 5 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 5 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2317



Ignition Coil No. 6 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 6 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 6 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2320



Ignition Coil No. 7 Secondary Circuit Insufficient Ionization

Possible Causes:



Cylinder No. 7 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 7 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P2323



Ignition Coil No. 8 Secondary Circuit Insufficient Ionization

Possible Causes:



Cylinder No. 8 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 8 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P2503



Charging System Voltage Low

Possible Causes:



Battery sense circuit has a high resistance condition
 
Generator ground circuit has a high resistance condition
 
Generator field ground circuit is open
 
Generator field control circuit is open or shorted to ground
 
Generator is damaged or it has failed
 

Trouble Code: P2525



Vacuum Reservoir Solenoid Open Circuit

Possible Causes:



Intermittent condition
 
ASD Relay output circuit is open
 
Vacuum Reservoir Solenoid control circuit is open or is shorted to ground
 
Vacuum Reservoir Solenoid has failed
 
ECM has failed
 

Trouble Code: P2527



Vacuum Reservoir Solenoid Short-To-Ground

Possible Causes:



Intermittent condition
 
ASD Relay output circuit is open
 
Vacuum Reservoir Solenoid control circuit is open or is shorted to ground
 
Vacuum Reservoir Solenoid has failed
 
ECM has failed
 

Trouble Code: P2700



A/T L/R Inadequate Element Volume Detected

Possible Causes:



L/R volume clutch index is too low
 
TCM L/R volume clutch circuit is damaged or has failed
 

 
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