Liberty, Wrangler 2006-2007

4.0L L6 VIN S Std 1

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4.0L L6 VIN S Std

Trouble Code: P0016



CRANKSHAFT/CAMSHAFT TIMING MISALIGNMENT

Possible Causes:



INTERMITTENT CONDITION
 
CMP WIRE HARNESS INSPECTION
 
TONE WHEEL/PULSE RING INSPECTION
 
INTERMITTENT CMP SIGNAL
 
CKP WIRE HARNESS INSPECTION
 
TONE WHEEL/PULSE RING INSPECTION
 
INTERMITTENT CKP SIGNAL
 
CAMSHAFT POSITION SENSOR
 
CRANKSHAFT POSITION SENSOR
 

Trouble Code: P0031



O2 SENSOR 1/1 HEATER CIRCUIT LOW

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER CONTROL CIRCUIT
 
O2 HEATER CONTROL SHORTED TO GROUND
 
PCM
 

Trouble Code: P0032



O2 SENSOR 1/1 HEATER CIRCUIT HIGH

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER GROUND CIRCUIT OPEN
 
O2 SENSOR
 
O2 HEATER CONTROL SHORTED TO VOLTAGE
 
O2 HEATER CONTROL CIRCUIT OPEN
 
PCM
 

Trouble Code: P0037



O2 SENSOR 1/2 HEATER CIRCUIT LOW

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER CONTROL CIRCUIT
 
O2 HEATER CONTROL SHORTED TO GROUND
 
PCM
 

Trouble Code: P0038



O2 SENSOR 1/2 HEATER CIRCUIT HIGH

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER GROUND CIRCUIT OPEN
 
O2 SENSOR
 
O2 HEATER CONTROL SHORTED TO VOLTAGE
 
O2 HEATER CONTROL CIRCUIT OPEN
 
PCM
 

Trouble Code: P0051



O2 SENSOR 2/1 HEATER CIRCUIT LOW

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER CONTROL CIRCUIT
 
O2 HEATER CONTROL SHORTED TO GROUND
 
PCM
 

Trouble Code: P0052



O2 SENSOR 2/1 HEATER CIRCUIT HIGH

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER GROUND CIRCUIT OPEN
 
O2 SENSOR
 
O2 HEATER CONTROL SHORTED TO VOLTAGE
 
O2 HEATER CONTROL CIRCUIT OPEN
 
PCM
 

Trouble Code: P0057



O2 SENSOR 2/2 HEATER CIRCUIT LOW

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER CONTROL CIRCUIT
 
O2 HEATER CONTROL SHORTED TO GROUND
 
PCM
 

Trouble Code: P0058



O2 SENSOR 2/2 HEATER CIRCUIT HIGH

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER GROUND CIRCUIT OPEN
 
O2 SENSOR
 
O2 HEATER CONTROL SHORTED TO VOLTAGE
 
O2 HEATER CONTROL CIRCUIT OPEN
 
PCM
 

Trouble Code: P0068



MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - VACUUM LEAK DETECTED

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
VACUUM LEAK
 
RESISTANCE IN (F856) 5-VOLT SUPPLY CIRCUIT
 
(F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
 
MAP SENSOR
 
RESISTANCE IN THE (K1) MAP SIGNAL CIRCUIT
 
(K1) MAP SIGNAL CIRCUIT SHORTED TO GROUND
 
RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT
 
TP SENSOR OPERATION
 
RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT
 
(F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
 
TP SENSOR
 
RESISTANCE IN THE (K22) TP SENSOR NO.1 SIGNAL CIRCUIT
 
(K22) TP SENSOR NO.1 SIGNAL CIRCUIT SHORTED TO GROUND
 
RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT
 
PCM
 

Trouble Code: P0071



AMBIENT TEMP SENSOR PERFORMANCE

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(G31) AAT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
AAT SENSOR
 
(G31) AAT SIGNAL CIRCUIT OPEN
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
(G31) AAT SIGNAL CIRCUIT SHORTED TO GROUND
 
(G31) AAT SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND
 
PCM
 

Trouble Code: P0072



AMBIENT TEMP SENSOR CIRCUIT LOW

Possible Causes:



AAT SENSOR VOLTAGE BELOW 0.3 OF A VOLT
 
AAT SENSOR
 
(G31) AAT SIGNAL CIRCUIT SHORTED TO GROUND
 
(G31) ATT SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND
 
PCM
 

Trouble Code: P0073



AMBIENT TEMP SENSOR CIRCUIT HIGH

Possible Causes:



AAT SENSOR VOLTAGE ABOVE 4.8 VOLTS
 
AAT SENSOR
 
(G31) AAT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
(G31) AAT SIGNAL CIRCUIT OPEN
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
PCM
 

Trouble Code: P0107



MAP SENSOR CIRCUIT LOW

Possible Causes:



MAP SENSOR VOLTAGE BELOW 0.08 OF A VOLT
 
(F856) 5-VOLT SUPPLY CIRCUIT OPEN
 
(F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
 
MAP SENSOR
 
(K1) MAP SIGNAL CIRCUIT SHORTED TO GROUND
 
(K1) MAP SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT
 
PCM
 

Trouble Code: P0108



MAP SENSOR CIRCUIT HIGH

Possible Causes:



MAP SENSOR VOLTAGE ABOVE 4.93 VOLTS
 
MAP SENSOR
 
(K1) MAP SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
(K1) MAP SIGNAL CIRCUIT OPEN
 
(K1) MAP SIGNAL CIRCUIT SHORTED TO THE (F856) 5-VOLT SUPPLY CIRCUIT
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
PCM
 

Trouble Code: P0111



INTAKE AIR TEMPERATURE SENSOR PERFORMANCE

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(K21) IAT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
IAT SENSOR
 
(K21) IAT SIGNAL CIRCUIT OPEN
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
(K21) IAT SIGNAL CIRCUIT SHORTED TO GROUND
 
(K21) IAT SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND
 
PCM
 

Trouble Code: P0112



INTAKE AIR TEMPERATURE SENSOR CIRCUIT LOW

Possible Causes:



IAT SENSOR VOLTAGE BELOW 0.5 OF A VOLT
 
IAT SENSOR
 
(K21) IAT SIGNAL CIRCUIT SHORTED TO GROUND
 
(K21) IAT SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT
 
PCM
 

Trouble Code: P0113



INTAKE AIR TEMPERATURE SENSOR CIRCUIT HIGH

Possible Causes:



IAT SENSOR VOLTAGE ABOVE 4.9 VOLTS
 
IAT SENSOR
 
(K21) IAT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
(K21) IAT SIGNAL CIRCUIT OPEN
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
PCM
 

Trouble Code: P0116



ENGINE COOLANT TEMPERATURE CIRCUIT PERFORMANCE

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(K2) ECT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
ECT SENSOR
 
(K2) ECT SIGNAL CIRCUIT OPEN
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
(K2) ECT SIGNAL CIRCUIT SHORTED TO GROUND
 
(K2) ECT SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND
 
PCM
 

Trouble Code: P0117



ENGINE COOLANT TEMPERATURE SENSOR CIRCUITLOW

Possible Causes:



ECT SENSOR VOLTAGE BELOW 0.5 OF A VOLT
 
ECT SENSOR
 
(K2) ECT SIGNAL CIRCUIT SHORTED TO GROUND
 
(K2) ECT SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT
 
PCM
 

Trouble Code: P0118



ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT HIGH

Possible Causes:



ECT SENSOR VOLTAGE ABOVE 4.96 VOLTS
 
ECT SENSOR
 
(K2) ECT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
(K2) ECT SIGNAL CIRCUIT OPEN
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
PCM
 

Trouble Code: P0122



THROTTLE POSITION SENSOR/APPS LOW

Possible Causes:



ENGINE TPS DTC-S PRESENT
 
TPS SIGNAL CIRCUIT HIGH RESISTANCE
 
TRANSMISSION CONTROL MODULE
 
INTERMITTENT WIRING AND CONNECTORS
 

Trouble Code: P0123



THROTTLE POSITION SENSOR/APPS HIGH

Possible Causes:



ENGINE TPS DTC-S PRESENT
 
SENSOR GROUND CIRCUIT OPEN TO TCM
 
TPS SIGNAL CIRCUIT OPEN TO TCM
 
TRANSMISSION CONTROL MODULE
 
INTERMITTENT WIRING AND CONNECTORS
 

Trouble Code: P0124



THROTTLE POSITION SENSOR/APPS INTERMITTENT

Possible Causes:



ENGINE TPS DTC-S PRESENT
 
THROTTLE POSITION SENSOR
 
TRANSMISSION CONTROL MODULE
 

Trouble Code: P0125



INSUFFICIENT COOLANT TEMP FOR CLOSED-LOOP FUEL CONTROL

Possible Causes:



LOW COOLANT LEVEL
 
THERMOSTAT OPERATION
 
ECT SENSOR
 

Trouble Code: P0128



THERMOSTAT RATIONALITY

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
OTHER POSSIBLE CAUSES
 
LOW COOLANT LEVEL
 
THERMOSTAT OPERATION
 
SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE
 
TEMPERATURE SENSOR
 
SIGNAL CIRCUIT OPEN
 
(K900) SENSOR GROUND CIRCUIT OPEN
 
SIGNAL CIRCUIT SHORTED TO GROUND
 
SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND
 
PCM
 

Trouble Code: P0129



BAROMETRIC PRESSURE OUT-OF-RANGE

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
(F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
 
(F856) 5-VOLT SUPPLY CIRCUIT OPEN
 
(F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND
 
MAP SENSOR
 
(K1) MAP SIGNAL CIRCUIT OPEN
 
(K1) MAP SIGNAL CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0131



O2 SENSOR 1/1 CIRCUIT LOW VOLTAGE

Possible Causes:



O2 SENSOR BELOW 2.52 VOLTS
 
O2 SENSOR
 
O2 RETURN CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0132



O2 SENSOR 1/1 CIRCUIT HIGH VOLTAGE

Possible Causes:



O2 SENSOR VOLTAGE ABOVE 3.7 VOLTS
 
O2 SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
 
O2 SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE
 
O2 SENSOR
 
O2 SENSOR SIGNAL CIRCUIT OPEN
 
O2 SENSOR RETURN CIRCUIT OPEN
 
PCM
 

Trouble Code: P0133



O2 SENSOR 1/1 SLOW RESPONSE

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
EXHAUST LEAK
 
O2 SIGNAL CIRCUIT
 
O2 RETURN CIRCUIT
 
O2 SENSOR
 

Trouble Code: P0135



O2 SENSOR 1/1 HEATER PERFORMANCE

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER CONTROL CIRCUIT OPEN
 
O2 HEATER GROUND CIRCUIT OPEN
 
PCM
 

Trouble Code: P0137



O2 SENSOR 1/2 CIRCUIT LOW VOLTAGE

Possible Causes:



O2 SENSOR BELOW 2.52 VOLTS
 
O2 SENSOR
 
O2 RETURN CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0138



O2 SENSOR 1/2 CIRCUIT HIGH VOLTAGE

Possible Causes:



O2 SENSOR VOLTAGE ABOVE 3.7 VOLTS
 
O2 SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
 
O2 SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE
 
O2 SENSOR
 
O2 SENSOR SIGNAL CIRCUIT OPEN
 
O2 SENSOR RETURN CIRCUIT OPEN
 
PCM
 

Trouble Code: P0139



O2 SENSOR 1/2 SLOW RESPONSE

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
EXHAUST LEAK
 
O2 SIGNAL CIRCUIT
 
O2 RETURN CIRCUIT
 
O2 SENSOR
 

Trouble Code: P0141



O2 SENSOR 1/2 HEATER PERFROMANCE

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER CONTROL CIRCUIT OPEN
 
O2 HEATER GROUND CIRCUIT OPEN
 
PCM
 

Trouble Code: P0151



O2 SENSOR 2/1 CIRCUIT LOW VOLTAGE

Possible Causes:



O2 SENSOR BELOW 2.52 VOLTS
 
O2 SENSOR
 
O2 RETURN CIRCUIT SHORTED TO GROUND
 
PCM
 

Trouble Code: P0152



O2 SENSOR 2/1 CIRCUIT HIGH VOLTAGE

Possible Causes:



O2 SENSOR VOLTAGE ABOVE 3.7 VOLTS
 
O2 SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
 
O2 SENSOR RETURN CIRCUIT SHORTED TO VOLTAGE
 
O2 SENSOR
 
O2 SENSOR SIGNAL CIRCUIT OPEN
 
O2 SENSOR RETURN CIRCUIT OPEN
 
PCM
 

Trouble Code: P0153



O2 SENSOR 2/1 SLOW RESPONSE

Possible Causes:



GOOD TRIP EQUAL TO ZERO
 
EXHAUST LEAK
 
O2 SIGNAL CIRCUIT
 
O2 RETURN CIRCUIT
 
O2 SENSOR
 

Trouble Code: P0155



O2 SENSOR 2/1 HEATER PERFORMANCE

Possible Causes:



O2 SENSOR HEATER OPERATION
 
O2 HEATER ELEMENT
 
O2 HEATER CONTROL CIRCUIT OPEN
 
O2 HEATER GROUND CIRCUIT OPEN
 
PCM
 

Trouble Code: P0157



O2 SENSOR 2/2 CIRCUIT LOW VOLTAGE

Possible Causes:



O2 SENSOR BELOW 2.52 VOLTS
 
O2 SENSOR
 
O2 RETURN CIRCUIT SHORTED TO GROUND
 
PCM
 

 
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