Jeep OBD/OBD2 Codes >> Commander 3.7/4.7/5.7L (2006-08)

ModelYearEngine identificationSystem
Commander 3.7/4.7/5.7L2006-08VIN  position 8 = K/N/P/2  JTEC

General information

  • Malfunction indicator lamp (MIL) will illuminate or flash if certain faults are recorded.
  • ECM operates in backup mode if sensors fail , to enable vehicle to be driven to repair shop.

Accessing

• Trouble codes can only be displayed by using a Scan Tool connected to the data link connector (DLC) 1

Erasing

• Trouble codes can only be erased by using a Scan Tool connected to the data link connector (DLC).

Trouble code  identification

Scan codeFault locationProbable cause
PO, P2,UORefer to OBO-II trouble code tables–
P1115Engine coolant temperature (ECT) sensor/intake air temperature (IAT) sensor signal variationWiring, ECT sensor, IAT sensor, ECM
P1411Cylinder cut-out solenoid 1 -malfunctionWiring, cylinder cut-out solenoid, oil pressure, ECM
P1414Cylinder cut-out solenoid 4 -malfunctionWiring, cylinder cut-out solenoid, oil pressure,ECM
P1416Cylindercut-out solenoid 6 malfunctionWiring, cylinder cut-out solenoid, oil pressure, ECM
P1417Cylinder cut-out solenoid 7 malfunctionWiring, cylinder cut-out solenoid, oil pressure, ECM
P1501Vehicle over-speed condition -rear axle speed greater than front axleWiring, VSS, mechanical fault, ECM
P1502Vehicle over-speed condition -front axle speed greater than rear axleWiring, VSS, mechanical fault, ECM
P1521Engine oil sensor module -malfunctionWiring, connectors, oil quality, oil level
P1572Brake pedal position (BPP) switch -circuit malfunctionBPP switch adjustment, wiring, BPP switch
P1573Brake pedal position (BPP) switch -circuit malfunctionBPP switch adjustment, wiring, BPP switch
P1593Cruise control system, multi-function input A circuit stuckWiring, poor connection, multi-function switch, mechanical fault, ECM
P1602Engine control module (ECM) not programmedNew ECM not programmed, incorrectly programmed, ECM
P1603Engine control module (ECM) -malfunctionWiring, fuse(s), ECM
P1604Engine control module (ECM) -RAM read/writeerrorECM
P1607Engine control module (ECM) -shut down timer errorECM
P1618Engine control module (ECM) -primary 5 volt output erraticWiring, poor connection, oil pressure sensor, APP sensor, CKP sensor, throttle control unit, TPS sensor, ECM
P1628Engine control module (ECM) -auxiliary 5 volt output erraticWiring, poor connection, APP sensor, CMP sensor,EGR solenoid, EGR valve position sensor, MAP sensor, ECM
P1646Engine coolant hydraulic blower motor solenoid/circuit high -circuit malfunctionWiring, fuse, engine coolant hydraulic blower motorsolenoid, ECM
P1647Engine coolant hydraulic blower motorsolenoid/circuit low -circuit malfunctionWiring, fuse, engine coolant hydraulic blower motor solenoid, ECM
P1648Glow plug control module/supply circuit circuit malfunctionWiring, fuse, ECM
P1696Engine control module (ECM) -EEPROM errorECM
P1697Engine control module (ECM) -EEPROM errorECM
U110AController area network (CAN) data buscommunication malfunctionWiring, steering column control module, multifunction control module, ECM
U110CController area network (CAN) data bus communication malfunctionWiring, fuel level sensor, multifunction control module, ECM
U110EOutside air temperature sensor communication malfunctionWiring, outside air temperature sensor, multifunction control module, ECM
U1110Wheel speed sensor -communication malfunctionWiring, speed sensor, anti-lock brake system (ABS) control module, ECM
U1111Controller area network (CAN) data buscommunication malfunctionWiring, multifunction control module, ECM
U1113AlC pressure sensor -communication malfunctionWiring, multifunction control module, ECM
U1120Wheel speed sensor -communication malfunctionWiring, speed sensor, anti-lock brake system (ASS) control module, ECM
U1403Control area network (CAN) data bus -fuel level -signal implausibleWiring, instrument panel, multifunction control module, ECM
U1411Controller area network (CAN) data bus/fuel level -communication malfunctionWiring, instrumentation control module,multifunction control module, ECM
U1412Wheel speed sensor -CAN data communication malfunctionWiring, wheel speed sensor, ABS control module,ECM
U1413Controller area network (CAN) data buslinstrument panel -signal implausibleWiring, instrumentation control module,multifunction control module, ECM
U1417Wheel speed sensor, left -CAN data communication malfunctionWiring, wheel speed sensor, ASS control module,ECM
U1418Wheel speed sensor, right -CAN data communication malfunctionWiring, wheel speed sensor, ASS control module, ECM