1994-1996 FLASHING OBDII Codes - Diesel Bombers



94-98 12V Cummins 5.9L P7100 Tech Talk '94-'98 5.9L Cummins 12-Valve P-9100 Tech Articles

 
 
 
 
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Old 11-24-2007, 12:08 AM
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Default 1994-1996 FLASHING OBDII Codes

From the 1994 Dodge Ram Service manual
For 1994-1996 Trucks
Earlier 2nd Gen Trucks Dont give you the P-codes they use a series of flashes
Stored diagnostic codes can be displayed by turning the "ignition" key ON-OFF-ON-OFF-ON Within three seconds. The fault codes will flash on the "CHECK ENGINE" light located at about the 8:00 position on the tachometer face. This procedure works for the 94-96 12 Valve engines. The 97-98 12 valve and the ISB all require the DRB diagnostic tool to obtain trouble codes.

As an example, a 23 code would be indicated by FLASH, FLASH, PAUSE, FLASH, FLASH, FLASH. Multiple codes may be displayed, and the sequence always ends with 55. Green codes will light the CHECK ENGINE lamp when the engine is running.

11 No crank signal detected during cranking
12 Battery was disconnected within the last 50 key-on cycles (Resets after 50)
15 No vehicle speed/distance signal while driving
23 Intake manifold air temp sensor voltage too high or too low
24 Throttle position sensor voltage too high or too low (automatic only)
33 An open or shorted condition detected in the AC clutch relay circuit
34 Open or short in the Speed control solenoid circuits or
Speed control switch voltage too high or too low
37 Open or short in the Torque converter clutch solenoid CKT circuit or
Voltage high or low at transmission Temperature sensor
41 An open or shorted condition detected in the alternator field control circuit
42 An open or shorted condition detected in the Auto Shutdown Relay circuit
44 An open or shorted condition detected in the engine coolant temp sensor circuit or A problem exists in the PCM battery temperature / voltage circuit
45 An open or shorted condition detected in the overdrive solenoid circuit
46 Battery charging system voltage too high
47 Battery charging system voltage too low
53 Internal PCM circuitry or communication failure
55 End of sequence. Last code sent to indicate the end of the codes.
62 SPI miles not being updated as vehicle travels
63 Unsuccessful attempt to write to EEPROM by the PCM
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