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Codes: 1995 to 1998 Volvos

1995 was an overlap year where you can find OBD-I or OBD-II or both. Many Volvos have both. Sometimes the OBD-II port will be present in front of the coin tray, but will not be functional. If it’s there, however, the chances are good it’ll be active. Just hook up a code reader to it and see if you get anything.

On Board Diagnostics — OBD — grew out of an effort in the late 1960s by Volkswagen to computerize the monitoring of an automobile’s running status. The thinking went like this:

Is something wrong with the car? Well then let’s record it, remember it, and spit it out for the owner or technician.

Matthew

That’s what your Volvo does. That’s where On Board Diagnostics came from.

The US state of California required all 1991 new cars to have a computer that would not only facilitate this recording of faults, but provide a common method of retrieving them across brands and models. It was an open format, in other words.

You Need a Code Reader for 1996+ Year Volvos

You need a code reader to view your Volvo’s trouble codes. Buy one, or make your own OBD-II code reader (!).

Need a simple code reader? We suggest this Innova or this MaxiScan

q? encoding=UTF8&ASIN=B007XE8C74&Format= SL250 &ID=AsinImage&MarketPlace=US&ServiceVersion=20070822&WS=1&tag=matthewsvolvo8 20&language=en US - Codes: 1995 to 1998 Volvos
OBD-II port inside a Volvo 850
OBD-II port inside a Volvo 850

The “Middle” Year Volvos: 1995-1998

OBD-II diagnostic trouble codes are 4-digit, preceded by a letter:

  • P for engine and transmission
  • B for Body
  • C for Chassis
  • and U for Network

Please help us add to this by posting your additions to this topic.

On Board DTC (850) Generic OBD Code Meaning of Code More Info
A-1 Transmision      
111   No faults found 😀
112   Solenoid S1 short circuit to battery voltage  
113   Transmission control module (TCM) fault  
114   Program selector open circuit or short circuit to supply  
121   Solenoid S1 short circuit to ground or control module fault  
122   Solenoid S1 open circuit  
123   Solenoid STH short circuit to battery voltage Solenoid STH short circuit
124   Mode selector faulty or short circuit to ground Mode selector faulty or short circuit
131   Solenoid STH open/short circuit or control module fault  
132   Transmission control module(TCM) fault  
134   Faulty load signal from ignition control module  
141   Oil temperature sensor short circuit to ground  
142   Oil temperature sensor open circuit  
143   Kickdown switch faulty or short to ground  
211   Transmission control module (TCM) fault  
212   S2 solenoid short circuit to battery  
213   Throttle position (TPS) signal too high  
221   S2 solenoid short circuit to ground or control module fault  
222   S2 solenoid open circuit  
223   Throttle position (TPS) sensor signal too low  
231   Throttle position (TPS) sensor sporadic  
232   Speedometer signal missing  
233 P0500 Incorrect speedometer signal Incorrect speedometer signal
235   High Oil temperature  
245   Open or short in Torque limiting circuit  
311   RPM signal from transmission missing  
312   RPM signal from transmission faulty  
313   Faulty signal from gear position sensor (PNP)  
321   Shift time too long  
322   Incorrect gear ratio  
323   Lock up slips or is not engaged  
331   Short circuit to battery in SL circuit  
332   SL solenoid open or control module fault  
333   SL solenoid short or control module fault  
       
A2 Fuel System      
111   No faults detected  
112   Fault in ECM  
115 P0201 Injector 1  
121 P0102 (low), P0103 (high) MAF sensor signal  
123 P0117 (low), PO118 (high) ECT signal  
125 P0202 Injector 2  
131   RPM sensor signal missing  
132   Battery voltage  
135 P0203 Injector 3  
143 P0326 Front knock sensor signal  
145 P0204 Injector 4  
153 P0136 (faulty), P0137(low), P0138 (high) Rear HO2S signal  
154 P0402 EGR system leakage  
155 P0205 Injector 5  
212 P0130 (missing/faulty), P0131 (low), P0132 (high), P0133 (slow) Front HO2S signal  
214 P0336 RPM sensor signal sporadic  
223 P1505 (low), P1506 (high) IAC valve opening signal  
225   A/C pressure sensor signal  
231 P0171 (part load), P0172 (part load) Long term fuel trim, part load P0172 code broken elbow
232 P0171 (lower limit) Long term fuel trim, idling  
233 P0172 (part load & upper limit) Long term idle air trim P0172 code broken elbow
241 P0400 EGR system flow malfunction  
245 P1507 (low), P1508 (high) IAC valve closing signal  
311   VSS signal  
314   CMP sensor signal  
315 P0440 EVAP system  
325   Memory failure  
335 P1617, P1618 Request for MIL lighting from TCM Request for MIL lighting
411 P0122 (low), P0123 (high) TP sensor signal  
413 P1416 (Faulty), P1417 (Low), P1418 (High) EGR temp sensor signal  
414   Boost pressure reduction from TCM  
416   Temperature warning level 1  
432 P0331 Rear knock sensor signal  
433 P0331 Front HO2S slow response  
435 P0133 (slow), Front HO2S slow response  
436   Rear HO2S compensation  
443 P0422 Three way cat. Efficiency California emissions test with p0422 and p1171
444 P1307 (low), P1308 (high) Acceleration signal  
451 P0301 Misfire cylinder 1  
452 P0302 Misfire cylinder 2  
453 P0303 Misfire cylinder 3  
454 P0304 Misfire cylinder 4  
455 P0305 Misfire cylinder 5  
513 P1405 Temperature warning level 2  
514   Engine cooling fan low speed signal  
521 P0135 (low/high) Front HO2S Preheating  
522 P0141 (low/high) Rear HO2S Preheating  
531 P1101 Power stage group A  
532 P1102 Power stage group B  
533   Power stage group C  
534   Power stage group D  
535   TC control valve signal  
541 P0444 (low), P0445 (high) EVAP valve signal  
542 P0300 Misfire more than one cylinder  
543 P1310 Misfire at least one cylinder  
544 P0300 Misfire more than one cylinder, three way cat damage  
545 P1310 Misfire at least one cylinder, three way cat damage  
551 P0301 Misfire cylinder 1, three way cat damage  
552 P0302 Misfire cylinder 2, three way cat damage  
553 P0303 Misfire cylinder 3, three way cat damage  
554 P0304 Misfire cylinder 4, three way cat damage  
555 P0305 Misfire cylinder 5, three way cat damage  
       
A3 ABS      
111   No DTC set  
121   Left front wheel sensor, faulty signal <40 km/h  
122   Right front wheel sensor, faulty signal <40 km/h  
123   Left rear wheel sensor, faulty signal <40 km/h  
124   Right rear wheel sensor, faulty signal <40 km/h  
125   Signal faulty from at least one wheel sensor for a long period  
135   Control Module faulty  
141   Faulty pedal sensor, shorted to ground or supply  
142   Faulty brake pedal switch, open or short  
143   Control module faulty  
144   Brake discs overheated  
151   Left front wheel sensor, open/short to battery  
152   Right front wheel sensor, open/short to battery  
155   Rear axle sensor open/short to battery  
211   Left front wheel sensor, not signal on moving off  
212   Right front wheel sensor, no signal on moving off  
213   Left rear wheel sensor, no signal on moving off  
214   Right rear wheel sensor, no signal on moving off  
On Board DTC (850) Generic OBD Code Meaning of Code Repair/Info Location (850, 1st Gen 70 Series)
215   Valve relay, open/short  
221   Left front wheel sensor, ABS operation signal missing  
222   Right front wheel sensor, ABS operation signal missing  
223   Left rear wheel sensor, ABS operation signal missing  
224   Right rear wheel sensor, ABS operation signal missing  
231   Left front wheel sensor, signal missing  
232   Right front wheel sensor, signal missing  
235   Rear axle sensor, signal missing  
311   Left front wheel sensor, open/short  
312   Right front wheel sensor. open/short  
313   Left rear wheel sensor, open/short  
314   Right rear wheel sensor, open/short  
321   Left front wheel sensor, irregular >40 km/h  
322   Right front wheel sensor, irregular >40 km/h  
323   Left rear wheel sensor, irregular >40 km/h  
324   Left rear wheel sensor, irregular >40 km/h  
411   Right rear wheel sensor, irregular >40 km/h  
412   Left front wheel inlet valve, open/short  
413   Left front wheel return valve, open/short  
414   Right front wheel inlet valve, open/short  
415   Rear valve open/short  
421   Right front wheel return valve, open/short  
422   Rear wheel return valve circuit, open/short  
423   Traction control system valve, open/short  
424   Pressure switch for TRACS, faulty or short circuit  
441   Control module faulty  
442   Pump pressure low  
443   Pump motor, electrical or mechanical fault  
444   No power supply to valves in hydraulic unit  
       
A6 Ignition      
111   No DTC set  
112   Control Module fault  
123   Engine Coolant Temperature Sensor (ECT) from Control module missing or faulty  
131   Engine speed (RPM) sensor signal missing  
142   Control Module Fault  
143   Knock sensor (KS) missing or faulty  
144   Ignition control module load signal missing  
154   EGR system flow too high in system  
214   Engine speed (RPM) sensor signal missing sporadically  
224   Engine Coolant Temperature sensor (ECT) signal missing or faulty  
234   Throttle Position (TPS) signal missing at idle  
241   EGR system flow too low in system  
243   Throttle Position sensor (TPS) signal missing at idle  
311   Vehicle speed signal missing or faulty  
314   Camshaft Position sensor (CMP) signal missing or faulty  
324   Camshaft Position sensor (CMP) signal missing sporadically  
411   Throttle position sensor (TPS) signal from fuel injection system missing or faulty  
413   EGR temperature sensor signal faulty  
432   Control module box temperature too high level 1  
433   Knock sensor (KS) signal missing or faulty  
513   Control module box temperature too high, level 2  
       
A7 Combined Instrument (Trip Computer)    
112   Fuel gauge short circuit  
113   Fuel gauge open circuit  
121   Temp. sensor interval too short  
122   Temp. sensor interval too long  
123   Digital output 48 pulse short circuit to supply  
131   Digital output 12 pulse short circuit to supply  
132   No RPM sensor signal  
133   Tank signal to trip computer short to supply  
       
B1 Electronic climate control    
111   No fault  
121   Outside temperature sensor shorted to ground  
122   Outside temperature sensor open circuit or shorted to 12 volts  
123   Driver’s side interior temperature sensor shorted to ground  
124   Driver’s side interior temperature sensor open circuit or shorted to 12 volts  
125   Passenger’s side interior temperature sensor shorted to ground(earth)  
126   Passenger’s side interior temperature sensor open circuit or shorted to 12 volts  
131   Driver’s side air duct temperature sensor shorted to ground(earth)  
132   Driver’s side air duct temperature sensor open circuit or shorted to 12 volts  
133   Passenger’s side air duct temperature sensor shorted to ground(earth)  
134   Passenger’s side air duct temperature sensor open circuit or shorted to 12 volts  
135   No signal from engine coolant temperature sensor  
141   Faulty signal from driver’s side temperature selector switch  
143   Faulty signal from passenger’s side temperature selector switch  
145   Faulty signal from function selector switch  
151   Signal from fan speed sensor missing or too high  
152   Signal from fan speed sensor shorted to earth  
211   Driver’s side damper motor position sensor open circuit or shorted to 12 volts  
212   Driver’s side damper motor position sensor shorted to earth  
221   Passenger’s side damper motor position sensor open circuit or shorted to 12 volts  
222   Passenger’s side damper motor position sensor shorted to earth  
231   Ventilation damper motor position sensor open circuit or shorted to 12 volts  
232   Ventilation damper motor position sensor shorted to earth  
233   Floor/defrost damper motor position sensor open circuit or shorted to 12 volts  
234   Floor/defrost damper motor position sensor shorted to earth  
235   Recirculation damper motor position sensor open circuit or shorted to 12 volts  
236   Recirculation damper motor position sensor shorted to earth  
311   Driver’s side damper motor shorted to earth or shorted to 12 volts  
312   Passenger’s side damper motor shorted to earth or shorted to 12 volts  
313   Ventilation damper motor shorted to earth or shorted to 12 volts  
314   Floor/defrost damper motor shorted to earth or shorted to 12 volts  
315   Recirculation damper motor shorted to earth or shorted to 12 volts  
321   Driver’s side damper motor active too long  
322   Passenger’s side damper motor active too long  
323   Ventilation damper motor active too long  
324   Floor/defrost damper motor active too long  
325   Recirculation damper motor active too long  
411   Blower fan seized or drawing excessive current  
412   Driver’s side interior temperature sensor inlet fan shorted to earth  
413   No control voltage at driver’s side interior temperature sensor inlet fan  
414   Driver’s 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’s side interior temperature sensor inlet fan  
417   Passenger’s side interior temperature inlet fan seized  
418   No control signal to blower fan power stage  
419   Faulty diagnostic signal from blower fan power stage  
420   ECU fault in program memory  
511   Damper motor limit position self-adjustment not carried out  
       
B2 Cruise Control      
111   No faults detected  
112   Abnormal speed signal  
122   Speed has not exceeded 22mph or no speed signal (not a code to worry about)  
211   Control module malfunction  
212   Malfunction in the circuit to the vacuum pump or regulator  
       
B5 SRS      
111   No fault detected  
112   Sensor module fault  
127   SRS lamp open/short circuit  
211   Drivers airbag short circuit  
212   Drivers airbag open circuit  
213   Drivers airbag short circuit to ground  
214   Drivers airbag short circuit to supply  
221   Passenger airbag short circuit  
222   Passenger airbag open circuit  
223   Passenger airbag short circuit to ground  
224   Passenger airbag short circuit to supply  
231   Left belt tensioner short circuit  

This is page 1 of 2. Continue on to Volvo Diagnostic Codes 1995 to 1998 page 2

14 Comments

mugishavianney says:

Sir,
i have found EFI-123 ECT error code!

What can i do?

Thanks

mugishavianney says:

Dear sir,
When i ignite my volvo car the fan switches on immediately even if the engine is not hot and the fan goes off after after 10 minute. Is there any fault on the engine?

Thanks

Vianney

mugishavianney says:

Dear sir,

What can be done when the EFI-123 ECT for Volvo 850 year 1996 is faulty and the car shows a warning sign!

Hi my question is.
9A0A error Code
990F error Code
Cant find where to find explanation.
I liv in sweden.
Volvo v50 2005 petroleum 2.4 non turbo.

Just had a 98 s70 come in with no A/C good pressure on the system (checked with A/C gauges) checked fuses all good, scan showed code 225 on the engine diagnostics section. cleared code A/C started working. so maybe just a glitch in the system.

graeme palmer says:

i overheated my 850 volvo 1996 model it started to make all sorts of noises frm the motor nd eventualy stoped i thought i had siezed the motor but the nxt day the engine turned over at a rapid pace leaving me to believe it was knackerd ive removed timing belt cover belt ok taken starter motor off seems ok no water in oil but it fails to restart

Edward Hall says:

This is my E-mail address.Edward Hall says:
Your comment is awaiting moderation.

July 22, 2013 at 7:03 am

I have a 1998 S90 volvo. I did a diagnostic test and it reads P0740. The check engine is on, flashing arrow comes on, there are three letters by the gear shift (WSE) The light flashes from W to E rapidly. What is the problem

Edward Hall says:

I have a 1998 S90 volvo. I did a diagnostic test and it reads P0740. The check engine is on, flashing arrow comes on, there are three letters by the gear shift (WSE) The light flashes from W to E rapidly. What is the problem

I have a 98 s70 glt. The code reads p0120. Is this why it doesn’t want to go when I give it gas? Also how do I fix this?

could this be air mass flow sensor

Have 1998 xc-70. has intermitent stalling and slow restart. Check engine light on. Generic codes have been PO-171 bank one system too lean and PO-103- mass or vacuum air flow circuit high input. Does this sound like air flow mass meter after air filter. Also 4-pin connector plug has I assume dielectric grease. Would this grease effect readings and is air flow meter gone and what should resistance readings be.

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