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

Model Year Engine identification System
Commander 3.7/4.7/5.7L 2006-08 VIN  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 code Fault location Probable cause
PO, P2,UO Refer to OBO-II trouble code tables
P1115 Engine coolant temperature (ECT) sensor/intake air temperature (IAT) sensor signal variation Wiring, ECT sensor, IAT sensor, ECM
P1411 Cylinder cut-out solenoid 1 -malfunction Wiring, cylinder cut-out solenoid, oil pressure, ECM
P1414 Cylinder cut-out solenoid 4 -malfunction Wiring, cylinder cut-out solenoid, oil pressure,ECM
P1416 Cylindercut-out solenoid 6 malfunction Wiring, cylinder cut-out solenoid, oil pressure, ECM
P1417 Cylinder cut-out solenoid 7 malfunction Wiring, cylinder cut-out solenoid, oil pressure, ECM
P1501 Vehicle over-speed condition -rear axle speed greater than front axle Wiring, VSS, mechanical fault, ECM
P1502 Vehicle over-speed condition -front axle speed greater than rear axle Wiring, VSS, mechanical fault, ECM
P1521 Engine oil sensor module -malfunction Wiring, connectors, oil quality, oil level
P1572 Brake pedal position (BPP) switch -circuit malfunction BPP switch adjustment, wiring, BPP switch
P1573 Brake pedal position (BPP) switch -circuit malfunction BPP switch adjustment, wiring, BPP switch
P1593 Cruise control system, multi-function input A circuit stuck Wiring, poor connection, multi-function switch, mechanical fault, ECM
P1602 Engine control module (ECM) not programmed New ECM not programmed, incorrectly programmed, ECM
P1603 Engine control module (ECM) -malfunction Wiring, fuse(s), ECM
P1604 Engine control module (ECM) -RAM read/writeerror ECM
P1607 Engine control module (ECM) -shut down timer error ECM
P1618 Engine control module (ECM) -primary 5 volt output erratic Wiring, poor connection, oil pressure sensor, APP sensor, CKP sensor, throttle control unit, TPS sensor, ECM
P1628 Engine control module (ECM) -auxiliary 5 volt output erratic Wiring, poor connection, APP sensor, CMP sensor,EGR solenoid, EGR valve position sensor, MAP sensor, ECM
P1646 Engine coolant hydraulic blower motor solenoid/circuit high -circuit malfunction Wiring, fuse, engine coolant hydraulic blower motorsolenoid, ECM
P1647 Engine coolant hydraulic blower motorsolenoid/circuit low -circuit malfunction Wiring, fuse, engine coolant hydraulic blower motor solenoid, ECM
P1648 Glow plug control module/supply circuit circuit malfunction Wiring, fuse, ECM
P1696 Engine control module (ECM) -EEPROM error ECM
P1697 Engine control module (ECM) -EEPROM error ECM
U110A Controller area network (CAN) data buscommunication malfunction Wiring, steering column control module, multifunction control module, ECM
U110C Controller area network (CAN) data bus communication malfunction Wiring, fuel level sensor, multifunction control module, ECM
U110E Outside air temperature sensor communication malfunction Wiring, outside air temperature sensor, multifunction control module, ECM
U1110 Wheel speed sensor -communication malfunction Wiring, speed sensor, anti-lock brake system (ABS) control module, ECM
U1111 Controller area network (CAN) data buscommunication malfunction Wiring, multifunction control module, ECM
U1113 AlC pressure sensor -communication malfunction Wiring, multifunction control module, ECM
U1120 Wheel speed sensor -communication malfunction Wiring, speed sensor, anti-lock brake system (ASS) control module, ECM
U1403 Control area network (CAN) data bus -fuel level -signal implausible Wiring, instrument panel, multifunction control module, ECM
U1411 Controller area network (CAN) data bus/fuel level -communication malfunction Wiring, instrumentation control module,multifunction control module, ECM
U1412 Wheel speed sensor -CAN data communication malfunction Wiring, wheel speed sensor, ABS control module,ECM
U1413 Controller area network (CAN) data buslinstrument panel -signal implausible Wiring, instrumentation control module,multifunction control module, ECM
U1417 Wheel speed sensor, left -CAN data communication malfunction Wiring, wheel speed sensor, ASS control module,ECM
U1418 Wheel speed sensor, right -CAN data communication malfunction Wiring, wheel speed sensor, ASS control module, ECM