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Jeep

 

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.

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