List of diagnostic trouble codes (DTC)
 

I found this on the net, formatted andresampled it for lower bandwidth consumption.
Moderator, please pin this post. People from other forums, please link to this thread instead of copying the content. Thank you.

Engine info
B5202S ----- 1984cc10 valveaspirated-----Fenix 5.2 engine management system
B5204S ----- 1984cc20 valveaspirated----- LH3.2 Jetronic fuel system andEZ129Kinjection
B5204T ----- 1984cc20 valve turbo --------- Motronic 4.3 engine management system
B5234S ----- 2319cc 20 valve aspirated ----- LH3.2 Jetronic fuel system andEZ129Kinjection
B5234T/T5 - 2319cc 20 valve turbo ---------Motronic 4.3 engine management system
B5252S ----- 2435cc 10 valve aspirated ----- Fenix 5.2 Engine Management System
B5254S ----- 2435cc 20 valve aspirated ----- Motronic or LH3.2+EZ129K (depending on market)
B5254F ----- 2435cc 20 valve aspirated ----- LH3.2+EZ129K

Attached are theDTCs for each of the possible engine management systems for the 850 series.

RE: List of diagnostic trouble codes (DTC)
 

Here are the rest of the DTCs, posted separately due to a 5 attachment limit per post

RE: List of diagnostic trouble codes (DTC)
 

I put this list together today after gathering up information from a variety of sources. PM me for the microsoft word doc. that includes hyperlinks to the appropriate section, and better organization. The fuel system is for a 2.3 turbo engine. Others can be found in the previous posts.

Whats here:
A1 Transmission
A2 Fuel System
A3 ABS
A5 Transmission Control
A6 Ignition System
A7 Combined Instrument

B1 Climate Control
B2 Cruise Control
B5 SRS
B6 Power Seat

Instructions on how to read and reset codes.



Automatic Transmission Fault Codes A1

CODE MEANING
1-1-1 No fault detected
1-1-2 Solenoid S1 circuit shorted to 12 volts
1-1-3 Fault in ECU
1-1-4 Break in driving mode selector circuit
1-2-1 Solenoid S1 circuit shorted to earth
1-2-2 Break in solenoid S1 circuit
1-2-3 Solenoid STH circuit shorted to 12 volts
1-2-4 driving mode selector circuit shorted to earth
1-3-1 Break or short circuit to earth in solenoid STH circuit
1-3-2 Fault in ECU
1-3-4 Incorrect load signal
1-4-1 Oil temperature sensor circuit shorted to earth
1-4-2 Break in oil temperature sensor circuit
1-4-3 Kickdown switch circuit shorted to earth
2-1-1 Fault in ECU
2-1-2 Solenoid S2 circuit shorted to 12 volts
2-1-3 Throttle position signal too high
2-2-1 Solenoid S2 circuit shorted to earth
2-2-2 Break in solenoid S2 circuit
2-2-3 Throttle position signal too low
2-3-1 Irregular throttle position signal
2-3-2 Vehicle speed sensor signal absent
2-3-3 Incorrect speedometer signal
2-3-5 Oil temperature too high
2-4-5 Break or short circuit to earth in torque limiting circuit
3-1-1 Transmission RPM sensor signal absent
3-1-2 Transmission RPM sensor signal faulty
3-1-3 incorrect signal from gear position sensor
3-2-2 Incorrect gear ratio for given road speed
3-2-3 lock up slips or not engaged
3-3-1 Solenoid SL circuit shorted to 12 volts
3-3-2 Break in solenoid SL circuit
3-3-3 Solenoid SL circuit shorted to earth

Motronic 4.3 System A2

CODE PROBABLE CAUSE (for Volvo vehicles)
1-1-2 ECU faulty
1-1-5 faulty signal to No. 1 cylinder injector
1-2-1 MAF sensor signal absent or faulty
1-2-3 Coolant temperature sensor signal absent or faulty
1-2-5 faulty signal to No. 2 cylinder injector
1-3-1 Engine RPM sensor signal absent or faulty
1-3-2 Battery voltage too low or too high
1-3-5 faulty signal to No. 3 cylinder injector
1-4-3 Front knock sensor signal absent of faulty
1-4-4 load signal absent of faulty (fuel system)
1-4-5 faulty signal to No. 4 cylinder injector
1-5-2 air pump valve signal absent or faulty
1-5-4 Leak in EGR system (leakage or excessive flow)
1-5-5 faulty signal to No. 5 cylinder injector
2-1-2 heated oxygen Sensor Signal absent or faulty
2-1-4 Engine RPM sensor signal absent intermittently
2-2-3 Idle air control valve signal absent or faulty
2-2-5 A/C pressure sensor signal absent or faulty
2-3-1 Long term fuel mixture too lean or too rich in part load stage
2-3-2 long term fuel mixture too lean or rich at idle
2-3-3 long term idle airs trim outside control range
2-3-5 EGR controller signal absent or faulty
2-4-1 EGR system flow fault
2-4-3 throttle position sensor signal outside of voltage range
2-4-4 Knock control at limit
2-4-5 idle air control valve closing signal faulty/absent
3-1-1 Vehicle speed sensor signal absent
3-1-3 EVAP valve signal absent or faulty
3-1-4 Camshaft position sensor signal absent or faulty
3-1-5 EVAP emission control system fault
3-2-3 Malfunction indicator lamp signal faulty
3-2-5 ECU memory loss
3-3-5 request for Malfunction indicator lamp signal from auto transmission ECU
3-4-2 air conditioning system relay control signal fault
3-4-3 fuel pump relay control signal faulty
4-1-1 Throttle position sensor signal outside of voltage range
4-1-3 EGR temperature sensor signal absent or faulty
4-1-4 Turbo boost pressure too high
4-1-6 Turbo boost reduced by auto transmission ECU
4-3-2 High temperature inside ECU module box
4-3-3 rear knock sensor signal absent/faulty
4-3-5 heated oxygen sensor response too slow
4-4-2 air pump relay signal absent or faulty
5-1-1 long term fuel mixture too rich at idle
5-1-2 short term fuel mixture too rich
5-1-3 Excessively High temperature in ECU module box
5-1-4 Engine cooling fan faulty at half speed
5-1-5 Engine cooling fan faulty at full speed
5-2-1 Oxygen sensor heating faulty
5-2-3 signal to ECU module box cooling fan shorted to 12 volts
5-2-4 transmission torque c

RE: List of diagnostic trouble codes (DTC)
 

Thank you.
Here is A5 I PMed it to you so you can addit to the post then I will pin it to the top of the section.

RE: List of diagnostic trouble codes (DTC)
 

Great job! I was too lazy to type it. My OCR software would not convert it correctly.

RE: List of diagnostic trouble codes (DTC)
 

I have really good OCR software at work, and a lot of free time. [sm=smiley20.gif]

RE: List of diagnostic trouble codes (DTC)
 

Thank you 94_850T[sm=smiley20.gif]for the listingof codes and terms, and thanks to JPN for getting me started.

I'm sure that not only myself but others will find this of great assistance.

I'm currently going throughthe Brick's codes and will clear and see what comes back and go from there.

Here is what I have found:

A3 Codes

142 - Stop lamp switch faulty
141 - Pedal signal faulty - Shorted to ground

A6 Codes

241 - EGR system flow too low in system
214 - Engine speed (RPM) sensor signal missing sporadically
324 - Camshaft Position sensor signal missing sporadically
314 - Camshaft Position sensor signal missing or faulty
131 - Engine speed (RPM) sensor signal missing

A7 Codes

132- No RPM sensor signal
122 - Temperature signal interval too long

B1 Codes


122 - Outside temperature sensor open circuit or shorted to 12 volts
132 - Driver side air duct temperature sensor open circuit or shorted to 12 volts
134 - Passenger side air duct temperature sensor open circuit/shorted to 12 volts
411 - Blower fan seized or drawing excessive current
413 - No control voltage at driver’s side interior temperature sensor inlet fan
414 - Driver side interior temperature sensor inlet fan seized
415 - Passenger’s side interior temperature sensor inlet fan shorted to earth
416 - No control voltage at passenger side interior temperature sensor inlet fan
417 - Passenger side interior temperature sensor inlet fan seized
418 - No control signal to blower fan power stage

B2 Codes

122- Abnormal speed signal.

Whew [sm=smiley5.gif], that is one crazy list and I'm really hoping that B1 codes aren't going to cost me an arm and a leg to repair. All I need to do now it find locations for all of this and I should be in business with no more warning lights on the dash.[sm=wootwoot.gif]

Anyway, it's like3am., and I need to drop and will[sm=type.gif] tomorrow(later today)and update my findings. Maybe I can clear a few.

[sm=icon_cheers.gif]

RE: List of diagnostic trouble codes (DTC)
 

I just tried doing the reset (which by the way was very easy to follow)...THANK YOU! Everything happend according to your instructions, but the check engine light did not go out. Is there something I'm not doing? I had this light on since November and we thought it was a mouse nest in my air filter...nothing has been wrong with my car since.

Any advice would be wonderful!

TM

RE: List of diagnostic trouble codes (DTC)
 

Hey now Tmixdorf,

http://www.volvoclub.org.uk/reset.shtml

Check for code from A7, clear and then follow the reset procedure in the link and you should be fine.

My (lambda/check engine) light came on last year due to an exhaust gasket leak and I went through and cleared them last weekend and it is so nice to NOT see that light on :).

Now I just need t replace a front left ABS wheel sensor and the ABS and Tracs light should be put to rest and then I will be really happy with a clear dash [sm=smiley20.gif].

Sorry for the late reply. Been really busy lately and I am doing some touch-up's. Post pics later.


[sm=icon_cheers.gif]

RE: List of diagnostic trouble codes (DTC)
 

[:@]I have a '99 Volvo S70 B5254S (gasolin 2.4L 20V Automatic) with Motronic 4.4, the check engine lit up, shop says it is a 0012 code but they don't know what it means, the car runs fine.
Can anyone tell me what it is?
Israel

RE: List of diagnostic trouble codes (DTC)
 

Is that a generic P code?

RE: List of diagnostic trouble codes (DTC)
 

I don't know. I have been told (not by the mechanic) that it may be related to the Camshaft position or its sensor
Israel

RE: List of diagnostic trouble codes (DTC)
 

It looks like a P code and yes it means camshaft timing out.
Have you had the timing belt done lately?

RE: List of diagnostic trouble codes (DTC)
 

No I bought the car recently and the last belt change was about 70K Km ago (50K miles), the car runs good, I see no change since the light came on, about 900 RPM at idle. i think i'll just disconnect the battery to turn the light off (don't have a code reader) and see what happens
Thank u
Israel

RE: List of diagnostic trouble codes (DTC)
 

Try that and see if all else fails have the timing checked.

where are the attachments? i can't find them in the post

engine trouble codes
 

I have 1991 240 that surges while idling. It also is unresponcive when the troutle is pressed. I replaced the mass air flow and still receive the same engine codes, 223-121-113. Any help would be greatly appreciated

My 96 850 glt, has three codes in memory. (1) misfire on cyl 4 (2)rich condition from one of the sensors (3) random misfires

Car runs great and the previous owner said he drove the car for 2 years with the CEL on with no issues.

1)How can I check codes without an official obd2 scanner? Is there a plug I can jump to make the light blink or anything, like obd1 vehicles?

2) How do I clear these codes?

For 96 and 97 850 owners who want to read and erase codes for ECU, Transmission, Cruise Control and ECC (Electronic Climate Control) you can build this very simple OBD2 DIY Code Reader from this Document.

If you have a Wiring Diagram, you can also access the ABS and SRS diagnostic wire at the connector.

That's AWESOME Henry. Thanks!