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how to get diagnostic codes 88 dodge ram 318

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  #1  
Old 04-28-2010, 04:07 PM
mjm1988 mjm1988 is offline
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Default how to get diagnostic codes 88 dodge ram 318

Rummaged around and cannot find the procedure - I have an 88 dodge ram with a 318 - first, how do you get the codes? from what I have been able to gather, it has something to do with turning the key on/off several times? Also, once I get the codes, how do I know what they mean?? thx, mike
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  #2  
Old 04-28-2010, 04:44 PM
SEAL SEAL is offline
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ON-BOARD DIAGNOSTICS Dodge OBD1 Pre 96

1. Cycle the ignition key ON-OFF-ON-OFF-ON within 5 seconds. To cycle the ignition key ON means to turn it only as far as it takes to get the radio to come on. It does not mean to turn the engine on.

2. Count the number of times the "check engine" lamp on the instrument panel flashes on and off. The number of flashes represents the code. There is a slight pause between the flashes representing the first and second digits of the code. Longer pauses separate individual codes. For example, flash-flash-flash [pause] flash-flash represents the code 32.

A code of "55" represents end of error codes. If this is all you get then no error codes are stored in the computer. This is the normal condition

CODE Description of Trouble Code
11 Timing belt skipped 1 tooth or more from initial learned value, Intermittent loss of either camshaft or crankshaft position sensor, No crank reference signal detected during engine cranking
12 Direct battery input to PCM was disconnected within the last 50 key-on cycles (normal)
13 No change in MAP from start to run
14 MAP sensor voltage too low
15 No vehicle speed sensor signal
17 Closed loop temp not reached or engine cold too long
21 02s sensor problem (oxygen sensor), upstream or down stream
22 Engine coolant temp sensor out of range
23 Intake air temp sensor out of range
24 Throttle Position sensor out of range
25 Idle air control motor circuits, target idle not reached (+/- 200),vacuum leak found
27 Injector control circuit
31 Evap purge flow monitor failure or evap solenoid circuit
32 EGR system failure
33 A/C clutch relay circuit
34 Speed control Solenoid circuits
35 Rad Fan control relay circuit
37 Torque converter clutch solenoid CKT or park/neutral switch failure
41 Generator field not switching properly
42 Fuel pump relay control ckt, Auto shutdown relay control ckt, No ASD relay output voltage at PCM, Fuel level sending unit volts out of range, Fuel level unit No change over miles
43 Multiple/ single cylinder misfire
44 Battery temp sensor volts out of range
46 Charging system voltage too low
51 Fuel system lean
52 Fuel system rich
53 Internal control failure
54 No Cam signal at PCM
55 End of error messages (If you get this only, no errors were found)
62 PCM failure SRI mile not stored
63 PCM Failure EEPROM write denied
64 Catalytic Converter Efficiency Failure
65 Power steering switch failure

Last edited by SEAL; 04-28-2010 at 04:47 PM..
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  #3  
Old 04-28-2010, 05:33 PM
mjm1988 mjm1988 is offline
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I see now why you are the "captain".....thanks!
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  #4  
Old 04-29-2010, 09:50 AM
mjm1988 mjm1988 is offline
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I came up with only 2 codes : 12 and 22, so I feel pretty good about that!!
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  #5  
Old 05-02-2010, 11:21 AM
samuelkopyna samuelkopyna is offline
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i tried this with my truck and the check engine light didnt even come on.
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  #6  
Old 05-02-2010, 01:07 PM
Exarkun007 Exarkun007 is offline
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How do you clear them? I checked my new old dodge and all it had was 12, and it has a new battery so that's a no brainer
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  #7  
Old 05-02-2010, 02:42 PM
AeSix AeSix is offline
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Quote:
Originally Posted by Exarkun007 View Post
How do you clear them? I checked my new old dodge and all it had was 12, and it has a new battery so that's a no brainer
turn the key on 50 times?
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Old 05-02-2010, 03:04 PM
Exarkun007 Exarkun007 is offline
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Hmm the maint reqd light is on. Any idea how to check that out or make it go away?
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  #9  
Old 05-03-2010, 07:09 AM
SEAL SEAL is offline
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The maintenance required light is mileage driven and does not tell you anything. It takes a special tool at the dealer to turn it off. Ignore it until it burns out, pay the dealer to turn it off, or remove the bulb as I did.

To clear codes, disconnect the battery for about 5 minutes.

The 22 code is a problem as the computer uses the information output from the coolant temperature sensor to adjust timing and fuel.
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  #10  
Old 05-03-2010, 10:36 AM
mjm1988 mjm1988 is offline
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Is the best "fix" for the code 22 to replace the engine coolant temp. sensor, or could there be more to it than that? I guess what I am asking is what the recommended diagnostic procedure is for this code?? Is there a way to test the existing engine temp sensor output??
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  #11  
Old 05-03-2010, 04:58 PM
SEAL SEAL is offline
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First make sure the wiring is OK.

Unplug the electrical connector, with the engine off, proceed to check the coolant temperature sensor with a standard ohmmeter by setting it on ohm x 1000, connect the positive and negative probes to both terminals on the sensor.

- The normal resistance on an engine at 50 to 80 degrees F = 2,200 to 2,700 ohms. As the sensor temperature INCREASES, the resistance value will DECREASE.
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  #12  
Old 05-04-2010, 11:00 PM
mjm1988 mjm1988 is offline
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Quote:
Originally Posted by SEAL View Post
The maintenance required light is mileage driven and does not tell you anything. It takes a special tool at the dealer to turn it off. Ignore it until it burns out, pay the dealer to turn it off, or remove the bulb as I did.

To clear codes, disconnect the battery for about 5 minutes.

The 22 code is a problem as the computer uses the information output from the coolant temperature sensor to adjust timing and fuel.
On my 88 Dodge Ram D100 I did the following to clear the "Maintenance Required" light: 1) open glove box ALL THE WAY (release the plastic catches near the latch) - so the contents spill out onto the floor. 2) Look inside and to your right and you should see a blue box with a red connector. 3) You'll have to carefully work this box off of the flat metal post it is sitting on or unscrew it from the bottom. 4) You should be able to see a small white button in the workings - I used a piece of household copper wiring to run through the round hole in the top of this plastic box and push on the button - be VERY CAREFUL as this button is on a circuit board - push the button for a few seconds WHILE the key is in the RUN position....turn the truck off and, voila, the light, she no there no more...not for the faint of heart, but it DID work on my truck - not sure to which other models/years it may apply. Good luck!
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  #13  
Old 08-03-2010, 10:46 AM
oelfinger65 oelfinger65 is offline
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Hallo there,
can you please help me ...
What is code 45 ??
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  #14  
Old 08-03-2010, 03:56 PM
SEAL SEAL is offline
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Code 45 is for the overdrive solenoid. It detects a short or open condition in the overdrive solenoid circuit in automatic transmissions.
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  #15  
Old 08-04-2010, 02:48 AM
oelfinger65 oelfinger65 is offline
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Default overdrive solenoid

Thank you very much for the fast answer.
Do I have to replace the overdrive solenoid or is it repairable?
I have a Dodge Ram Van B250 V6 239 ci.in. from 1994. I read the codes 22 and 45.
It seems that the coolant temperature sensor is broken. Does it work in relation with the overdrive solenoid? Do I have to change both.
Does the B250 from 1994 got an overdrive.

Best regards
Peter
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  #16  
Old 03-01-2015, 05:35 PM
Jonmartin2@yahoo Jonmartin2@yahoo is offline
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Default Need some help 89 Dodge Ram

I have a Dodge Ram 318, starting running rough spitting and stalling out. If I put my foot into the gas it will go but will not run smooth at a constant speed at times if sitting idle it stalls. The code says 12 which is saying about the battery which I did replace but other than that no codes . Not sure where to go from here. Can anyone give me some help on this? Thanks in advance for your time.
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  #17  
Old 03-03-2015, 09:18 AM
newtjr newtjr is offline
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Default Coolant sensor

With the cold weather we are having now you may have a thermostat stuck open. This would affect your heater output. If not the spec's for testing the coolant sensor at 140 degrees to 245 degrees is from 176 to 3900 ohms. Sensor should be located near thermostat housing. Hopes this helps.
newtjr
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Old 03-03-2015, 09:18 AM
 
 
 
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