Jeep

Model Year Engine information System
89–95 Jeep 1989-95
Cherokee 2.5L 1992-95 VIN Position 8=P JTEC
Cherokee 2.5L 1996-97 VIN Position 8=P JTEC
Cherokee 2.5L 1998 VIN Position 8=P JTEC
Cherokee 2.5L 1999-02 VIN Position 8=P JTEC
Cherokee 4.0L 1992-95 VIN Position 8=S JTEC
Cherokee 4.0L 1996-97 VIN Position 8=S JTEC
Cherokee 4.0L 1998 VIN Position 8=S JTEC
Cherokee 4.0L 1999-02 VIN Position 8=S JTEC
Comanche 2.5L 1992 VIN Position 8=P JTEC
Comanche 4.0L 1992 VIN Position 8=S JTEC
Commander 3.7/4.7/5.7L 2006-08 VIN Position 8=2/K/N/P JTEC
Compass 2.4l 2007-0S VIN Position 8=W NGC 3
Grand Cherokee 3.0L 2007-09 VIN Position 8=M NGC 3
Grand Cherokee 3.7L 2005-08 VIN Position 8=K NGC 3
Grand Cherokee 4.0L 1993-95 VIN Position 8=S JTEC
Grand Cherokee 4.0L 1996-97 VIN Position 8=S JTEC
Grand Cherokee 4.0L 1998 VIN Position 8=S JTEC
Grand Cherokee 4.0L 1999-04 VIN Position 8=S JTEC
Grand Cherokee 4.7/5.7/6.1l 1999-08 VIN Position 8=2/3/N/P JTEC/NGC 3
Grand Cherokee 5.2L 1993-95 VIN Position 8=Y JTEC
Grand Cherokee 5.2L 1996-97 VIN Position 8=Y JTEC
Grand Cherokee 5.2L 1998 VIN Position 8=Y JTEC
Grand Cherokee 5.9L 1998 VIN Position 8=Z JTEC
Liberty 2.4L 2002-05 VIN Position 8=1 NGC 3
Liberty 2.SL 2005-06 VIN Position 8=5 NGC 3
Liberty 3.7L 2002-08 VIN Position 8=K NGC 3
Patriot 2.4L 2007-08 VIN Position 8=W NGC 3
Wrangler 2.4L 2003-06 VIN Position 8=1 JTEC
Wrangler 2.5L 1992-95 VIN Position 8=P JTEC
Wrangler 2.5L 1996-97 VIN Position 8=P JTEC
Wrangler 2.5L 1998 VIN Position 8=P JTEC
Wrangler 2.5L 1999-02 VIN Position 8=P JTEC
Wrangler 3.5L 2007-0S VIN Position 8=W NGC 3
Wrangler 4.0L 1992-95 VIN Position 8=S JTEC
Wrangler 4.0L 1996-97 VIN Position 8=S JTEC
Wrangler 4.0L 1998 VIN Position 8=S JTEC
Wrangler 4.0L 1999-06 VIN Position 8=S JTEC

Generic Jeep Codes

 
1000 Ignition Circuit Low
1001 Ignition Circuit High
1004 ECU Battery Feed & Power Grounds
1005 System Ground Circuit
1006 EGR/EVAP Solenoid Circuit Low
1007 EGR/EVAP Solenoid Circuit High
1008 Power Steering Circuit Low
1009 Power Steering Circuit High
1012 MPA Circuit Low
1013 MPA Circuit High
1014 Fuel Pump Circuit Low
1015 Fuel Pump Circuit High
1016 Charge Air Temperature Circuit Low
1017 Charge Air Temperature Circuit High
1018 Serial Data Circuit
1019 Power Latch Not Set
1021 Engine Failed To Start Due To Mechanical, Fuel Or Ignition Conditions
1022 Starter Relay Circuit Low
1024 ECU Start Circuit Low
1025 WOT Circuit Low
1026 WOT Circuit High
1027 ECU Sees Wide Open Throttle
1028 ECU Does Not See Wide Open Throttle
1029 ISA Closed Throttle Circuit Low
1030 ISA Closed Throttle Circuit High
1031 ECU Sees Closed Throttle
1032 ECU Does Not See Closed Throttle
1033–36 ISA Circuits
1037 TP Sensor Circuit Reads Low
1038 Park/Neutral Line High
1039 Park/Neutral Line Low
1040 Latched B+ Line Low
1041 Latched B+ Line High
1042 No Latched B+ 1/2 Volt Drop
1043 Shift Lamp Circuit Grounded
1044 D2–1 Circuit Low (A/T){1}
Upshift Lamp Circuit (M/T){1}
Shift Lamp Circuit High{2}
1045 Shift Lamp Circuit Open{1}
1047 Wrong ECU
1048 M/T Vehicle Configuration
1049 A/T Vehicle Configuration
1050 Idle RPM Low
1051 Idle RPM High
1052 MAP Sensor Out Of Limits
1053 Change In MAP Reading Out Of Limits
1054 Coolant Sensor & 5 Volt Supply For TP Sensor/MAP Circuits Low
1055 Coolant Sensor Circuit High
1056 Inactive Coolant Temperature Sensor
1059 A/C Request Circuit Low
1060 A/C Request Circuit High
1061 A/C Select Circuit Low
1062 A/C Select Circuit High
1063 A/C Clutch Circuit Low
1064 A/C Clutch Circuit High & Power Steering Input
1065 Rich Oxygen Sensor Input
1066 Lean Oxygen Sensor Input
1067 Latch Relay Circuit Low
1068 Latch Relay Circuit High
1069 No Tach
1074 ECU Does Not See Speed Sensor

{1}—Cherokee & Wagoneer {2}—Wrangler