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Computerized FWD Mopars (preOBID2) have a nice feature, and thats the error code system. When the computer thinks something is broken, it can give you and error code using the check engine light.
This can be helpful in troubleshooting a problem. Some codes are common and can be ignored, some are bad signs to get.
To retreive error codes from the PCM, with the car off, turn the ignition key to the on (not start) position and then off again than on- so that you are basically doing "off" to "on" to "off" to "on" to "off" to "on"
The check engine light will than blink. Count how many times it blinks, than it will pause and start blinking again- count both sets as different numbers- so an error 15 would be "blink" -pause- "blink blink blink blink blink"
Now this many varry a lil from year to year from car to car- but here is a general error code chart
|
Code |
Problem |
|
11 |
Cam sensor signal not found |
|
12 |
Battery has been recently disconnected |
|
13 |
MAP sensor signal not found or not working correctly |
|
14 |
MAP sensor signal is off (too high or low voltage) |
|
15 |
Speed sensor signal not found |
|
16 |
Battery voltage decreased to or near 0 volts while engine is running |
|
17 |
Engine temp hasnt changed while engine heats up |
|
21 |
O2 sensor is either shorted or off |
|
22 |
Engine temp signal is higher or lower than its range |
|
24 |
TBPS sensor signal is higher or lower than its range |
|
25 |
AIS wiring is open or shorted |
|
26 |
Peak fuel injector current did not occur |
|
27 |
Injector control circuit improperly working |
|
33 |
Problem with AC compressor clutch relay/circuit |
|
34 |
Cruise control solenoid circuit not working correctly |
|
35 |
Radiator fan circuit improperly working |
|
41 |
Alternator field not switching correctly |
|
42 |
Autoshutdown relay circuit improperly working |
|
43 |
Ignition coil/coil pack improperly working |
|
44 |
PCM and ignition switch circuit open or shorted |
|
46 |
High charging voltage |
|
47 |
Low charging voltage |
|
51 |
O2 sensor shows engine is lean |
|
52 |
O2 sensor shows engine is rich |
|
53 |
Internal PCM problem |
|
55 |
End of Error codes |
|
62 |
Internal PCM circuits not working with the ROM- ROM not storing data |
|
63 |
PCM ROM refusing writes |
|
64 |
Cat convertor efficiency error |
|
65 |
Power steering switch failure |