Barney4611

I have a 1995 Grand Cherokee larado and it is showing dtc 41. I changed out the battery on Saturday and the connections are tight but the code came back tonight. I disconnected the positive terminal from the post and the car still ran. I was told that means the alternator is OK. Is that true? What else could be causing the code to come on. Should I inspect the alternator wiring? Please help.

HogCommander

is it the 4.0?

HogCommander

11
Ignition Reference Signal
12
Battery Disconnected
13
MAP Signal Fault
14
MAP Voltage Fault
15
No Vehicle Speed Signal
17
Engine Is Cold Too Long
21
Oxygen Signal Circuit
22
Improper Coolant Sensor Voltage
23
Improper Charge Temperature Sensor Voltage
24
Improper TP Sensor Voltage
25
Auto. Idle Speed Motor Circuit
27
Injector Control Circuit
31
EVAP Purge Solenoid Circuit
32
EGR System Failure
33
A/C Clutch Relay Circuit
34
Speed Control Solenoid Circuits
35
Radiator Fan Relay
37
Torque Converter Clutch Solenoid Circuit
41
Alternator Field Switching Improperly
42
ASD Relay Circuit
44
Improper Battery Temperature Sensor Voltage
45
Alternator Field Switching Improperly
46
Charging System Voltage Too High
47
Charging System Voltage Too Low
51
Oxygen Sensor Signal Lean
52
Oxygen Sensor Signal Rich
53
Internal Controller Failure
54
No Sync Pickup Signal
55
Completion Of Fault Code Display
62
Controller Failure, EMR Miles Not Stored
63
Controller Failure, EEPROM Write Denied
76
Fuel Pump Resistor Bypass Relay Circuit

HogCommander

There is a list of engine codes from chrysler. I had the same problem with my engine throwing codes and i called chrysler and this is the list they gave me for a 89-95 jeep cherokee. it worked for me.