1994-1996 PCM Fault Codes - NC

ndurbin · 04-13-2006, 06:10 PM

To get the PCM codes you cycle the key ON-OFF-ON-OFF-ON. Then you watch the check engine light and count the flashes. So as an example code #12 would flash-short pause-flash-flash.

http://dodgeram.org/tech/dsl/trouble..._DTC_codes.htm

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1994 2500 Reg. Cab 4x4 SLT Laramie CTD/DTT 330hp/765trq - Work Truck
2002 Ford F150 Super Cab - Daily Driver

Dr. Evil · 04-13-2006, 08:54 PM

Nathan, I believe this works on a 97 12V as well...but not on the 98 12V's. For them you need an OBDII code reader.

ndurbin · 04-14-2006, 11:46 AM

It very well could. I believe Dave's page mentions something about the 97-98s needing to use a DRB tool to read the codes tho.

__________________
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1994 2500 Reg. Cab 4x4 SLT Laramie CTD/DTT 330hp/765trq - Work Truck
2002 Ford F150 Super Cab - Daily Driver

illflem · 04-14-2006, 06:39 PM

The '97 is a misprint on Dave's page.
The only years the key on/off trick doesn't work on is '98 &'99

__________________
Bill
'95 2500 4wd auto
'95 3500 5 speed heavy hauler
Both far from stock

hyper · 02-12-2007, 05:43 PM

97 and up required to have OBD2?

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.

CODE MEANS
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

Last edited by hyper : 11-26-2007 at 09:46 AM.

04-13-2006, 06:10 PM	#1 (permalink)
ndurbin Diesel Head Join Date: Dec 2005 Location: Medicine Lodge, Kansas Posts: 1,604 ndurbin's Truck Pics	1994-1996 PCM Fault Codes - NC To get the PCM codes you cycle the key ON-OFF-ON-OFF-ON. Then you watch the check engine light and count the flashes. So as an example code #12 would flash-short pause-flash-flash. http://dodgeram.org/tech/dsl/trouble..._DTC_codes.htm __________________ http://img.photobucket.com/albums/v3...tinb4k/New.gif 1994 2500 Reg. Cab 4x4 SLT Laramie CTD/DTT 330hp/765trq - Work Truck 2002 Ford F150 Super Cab - Daily Driver

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04-13-2006, 08:54 PM	#2 (permalink)
Dr. Evil Banned Join Date: Jan 2006 Posts: 2,590 Dr. Evil's Truck Pics	Nathan, I believe this works on a 97 12V as well...but not on the 98 12V's. For them you need an OBDII code reader.

04-14-2006, 11:46 AM	#3 (permalink)
ndurbin Diesel Head Join Date: Dec 2005 Location: Medicine Lodge, Kansas Posts: 1,604 ndurbin's Truck Pics	It very well could. I believe Dave's page mentions something about the 97-98s needing to use a DRB tool to read the codes tho. __________________ http://img.photobucket.com/albums/v3...tinb4k/New.gif 1994 2500 Reg. Cab 4x4 SLT Laramie CTD/DTT 330hp/765trq - Work Truck 2002 Ford F150 Super Cab - Daily Driver

04-14-2006, 06:39 PM	#4 (permalink)
illflem Moderator Join Date: Nov 2005 Location: Montana Posts: 1,009 illflem's Truck Pics	The '97 is a misprint on Dave's page. The only years the key on/off trick doesn't work on is '98 &'99 __________________ Bill '95 2500 4wd auto '95 3500 5 speed heavy hauler Both far from stock

02-12-2007, 05:43 PM	#5 (permalink)
hyper Cummins Fan Join Date: Feb 2007 Posts: 51 hyper's Truck Pics	97 and up required to have OBD2? 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. CODE MEANS 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 Last edited by hyper : 11-26-2007 at 09:46 AM.