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Kody błedów komputera w samochodach VOLVO

 

Ignition off 
Stick the flylead attached to the cover into A2 socket 
Ignition on 
press the button next to the led once 
Codes appear as blinks, copy down the code onto paper. 
Press button again after code displayed to see next code. 
After all codes displayed, codes repeat. 
(ie continue copying down codes until first code repeats.) 
1-1-1 means nothing's there (hopefully, all OK). 
Switch off ignition.

Just because a code is there doesn't mean that it is a 100% certain problem for your car. 
Electric spikes etc may occur giving false readings on the diagnostic system.
Reset the system and then see if the error codes reappear.
Fault codes can't be deleted until you have read them all at least once.

Reset system;
Ignition off 

Stick the flylead attached to the cover into A2 socket 
Ignition on 
press the button next to the led once for about five seconds
release
red LED will light
when lit, press the button next to the led again for about five seconds
red LED goes out
Ignition off, keep the flylead attached to the cover into A2 socket 
Ignition on
press button once for a second, ensure codes are cleared 
or write down code(s) repeat code gathering procedure.


Volvo Code Retrieval

Accessing Trouble Codes

89-93 models (and later non-turbo/non-OBDII models)

Fuel Codes

Locate the diagnostic unit behind left strut tower and remove its cover.(see image) Connect selector cable to socket #2,which tests the fuel codes. Turn the ignition switch to the ON position(engine not running). Enter the diagnostic mode by pressing the push button on the diagnostic unit for at least 1 second, but not more than 3 seconds. The red LED light will start to flash,count the number of flashes in 3 flash intervals. The flashes will be seperated by 3 second intervals.Make note of all codes. If no codes are stored,the LED will flash 1-1-1,which means the fuel system is operating correctly.

Ignition Codes

To access the ignition codes,follow the above procedure,but with the selector cable connected to the #6 socket on the diagnostic unit.
NOTE:Turbocharged models may have seperate codes for the turbo system and are accessse by hooking the selector cable to the #5 socket.

94 and later models with OBDII

The 850 turbo and 960 models are OBD II system which are only accessible with a scanner.

Clearing Trouble Codes

Once all faults have been corrected,turn the ignition switch to the ON position(engine not running).Recheck the codes,then depress the button for 5 seconds and release.After 3 seconds, the LED should light up.While the LED is lit,depress the button again for 5 seconds,when the button is released,the LED should go out.

 

 

Diagnostic Codes

Volvo

89-93 models

1-1-1

No faults.

1-1-2

ECU.

1-1-3

Fuel injectors.

1-1-3

Heated Oxygen sensor-max enrichment sensed (94-up).

1-1-5

Injector #1.

1-2-1

Mass airflow sensor.

1-2-2

Air temp sensor signal.

1-2-3

Coolant temp sensor signal.

1-2-5

Injector #2.

1-3-1

Ignition system RPM signal.

1-3-2

Battery voltage.

1-3-3

Throttle switch signal (idle).

1-3-5

Injector #3.

1-4-2

ECU faulty.

1-4-3

Knock Sensor signal missing or defective.

1-4-4

Fuel system load signal(missing or defective).

1-4-5

Injector #4.

1-5-3

Rear heated oxygen sensor signal.

1-5-4

EGR system-leakage or excessive flow.

1-5-5

Injector #5.

2-1-2

Oxygen sensor signal(front sensor on 94 and later models).

2-1-3

Throttle switch signal.

2-1-4

Ignition RPM signal erratic.

2-2-1

Heated Oxygen Sensor(Rich mixture/part throttle).

2-2-2

Main relay.

2-2-3

Idle valve signal.

2-2-4

Coolant temp sensor signal.

2-2-5

A/C pressure sensor signal.

2-3-1

Lambdfa adjustment.

2-3-1

Heated Oxygen sesnor(lean mixture/part throttle) 94-up.

2-3-2

Lamda adjustment.

2-3-2

Adaptive heated O2 sensor control (94-up).

2-3-3

Idle valve-closing signal.

2-3-4

Throttle switch signal missing.

2-4-1

EGR malfunction.

2-4-5

Idle air control valve-closing signal.

3-1-1

Speedometer signal.

3-1-4

Camshaft position signal missing or defective.

3-1-5

EVAP emission control system.

3-2-1

Cold start valve-signal missing.

3-2-2

Airflow meter hot wire.

3-2-4

Camshaft position siganl erratic.

3-2-5

ECU memory failure.

3-3-5

TCM request for MIL.

4-1-1

Throttle switch signal faulty or missing.

4-1-3

EGR temp sensor signal incorrect or missing.

4-1-4

Turbo boost regulation.

4-1-6

Turbo boost reduction from TCM.

4-2-5

Temp warning level #1.

4-3-1

EGR temp sensor faulty or missing.

4-3-2

High temp warning inside ECU.

4-3-3

No rear knock sensor signal.

4-3-5

Front heated oxygen sensor - slow response.

4-3-6

Rear heated oxygen sensor compensation.

4-4-3

Catalytic converter efficiency.

4-4-4

Acceleration sensor signal.

4-5-1

Misfire - #1 cylinder.

4-5-2

Misfire - #2 cylinder.

4-5-3

Misfire - #3 cylinder.

4-5-4

Misfire - #4 cylinder.

4-5-5

Misfire - #5 cylinder.

5-1-1

Adaptive oxygen sensor control-lean mixture at idle.

5-1-2

Oxygen integrator at max lean running limit.

5-1-3

High temp warning inside ECU.

5-1-4

Engine cooling fan-low speed signal faulty.

5-2-1

Oxygen sensor preheating-front.

5-2-2

Oxygen sensor preheating- rear.

5-3-1

Power stage-group A.

5-3-2

Power stage-group B.

5-3-3

Power stage- group C.

5-3-4

Power stage- group C.

5-3-5

TC control valve signal.

5-4-1

EVAP valve signal.

5-4-2

Misfire - more than one cylinder.

5-4-3

Misfire - at least one cylinder.

5-4-4

Misfire - more than one cylinder/catalytic converter damage.

5-4-5

Misfire - at least one cylinder/catalytic converter damage.

5-5-1

Misfire - #1 cylinder/catalytic converter damage.

5-5-2

Misfire - #2 cylinder/catalytic converter damage.

5-5-3

Misfire - #3 cylinder/catalytic converter damage.

5-5-4

Misfire - #4 cylinder/catalytic converter damage.

5-5-5

Misfire - #5 cylinder/catalytic converter damage.


This table may be used as a reference for interpreting your Volvo vehicle's computer messages.

If codes other than these are indicated, repeat self-diagnosis. If codes reappear, substitute a known good ECM, and recheck codes.

CODE

PROBABLE CAUSE for Volvo vehicles

1-1-1

No faults

1-1-2

ECU faulty

1-1-3

Fuel injectors; From 1994 and later, Heated oxygen sensor - maximum enrichment sensed

1-1-5

Injector no. 1

1-2-1

Mass Airflow Signal

1-2-2

Air Temperature sensor signal

1-2-3

Coolant temperature sensor signal

1-2-5

Injector no. 2

1-3-1

Ignition System RPM signal

1-3-2

Battery voltage

1-3-3

Throttle switch signal (idle)

1-3-5

Injector no. 3

1-4-2

ECU faulty

1-4-3

Knock sensor signal missing or sensor defective

1-4-4

Fuel system load signal (missing or defective)

1-4-5

Injector no. 4

1-5-3

Rear heated oxygen sensor signal

1-5-4

EGR system - leakage or excessive flow

1-5-5

Injector no. 5

2-1-2

Oxygen Sensor Signal (front sensor on 1994 and later models)

2-1-3

Throttle switch signal (wide-open)

2-1-4

Ignition rpm signal erratic

2-2-1

Lambda Operation; also Heated oxygen sensor (mixture too rich under part throttle)

2-2-2

Main relay

2-2-3

Idle valve signal

2-2-4

Coolant temperature sensor signal

2-2-5

A/C pressure sensor signal

2-3-1

Lambda adjustment; For 1994 and later, heated oxygen sensor (mixture too lean under part throttle)

2-3-2

Lambda adjustment; For 1994 and later, adaptive heated oxygen sensor control

2-3-3

Idle valve - closed or intake air leak

2-3-4

Throttle switch signal missing

2-4-1

EGR malfunction

2-4-5

Idle air control valve - closing signal

3-1-1

Speedometer signal

3-1-2

Knock/Fuel enrichment signal missing

3-1-4

Camshft position sensor signal missing or defective

3-1-5

EVAP emission control system

3-2-1

Cold start valve - signal missing

3-2-2

Airflow meter hot wire

3-2-4

Camshaft position sensor signal erratic

3-2-5

ECU memory failure

3-3-5

TCM request for MIL (CHECK ENGINE light)

4-1-1

Throttle switch signal faulty or missing

4-1-3

EGR temperature sensor signal incorrect or missing

4-1-4

Turbo boost regulation

4-1-6

Turbo boost reduction from TCM

4-2-5

Temperature warning level no. 1

4-3-1

EGR temperature sensor faulty or missing

4-3-2

High temperature warning inside ECU

4-3-3

No rear knock sensor signal

4-3-5

Front heated oxygen sensor - slow response

4-3-6

Rear heated oxygen sensor compensation

4-4-3

Catalytic converter efficiency

4-4-4

Acceleration sensor signal

4-5-1

Misfire cylinder no. 1

4-5-2

Misfire cylinder no. 2

4-5-3

Misfire cylinder no. 3

4-5-4

Misfire cylinder no. 4

4-5-5

Misfire cylinder no. 5

5-1-1

Adaptive oxygen sensor control, provides leaner mixture at idle

5-1-2

Oxygen intergrator at maximum lean running limit

5-1-3

High temperature warning inside ECU

5-1-4

Engine cooling fan - low speed signal faulty

5-2-1

Oxygen sensor preheating front

5-2-2

Oxygen sensor preheating rear

5-3-1

Power stage - group A

5-3-2

Power stage - group B

5-3-3

Power stage - group C

5-3-4

Power stage - group D

5-3-5

TC control valve signal

5-4-1

EVAP valve signal

5-4-2

Misfire on more than one cylinder

5-4-3

Misfire on at least one cylinder

5-4-4

Misfire on more than one cylinder, catalyic converter damage

5-4-5

Misfire on at least one cylinder, catalyic converter damage

5-5-1

Misfire on cylinder no. 1, catalyic converter damage

5-5-2

Misfire on cylinder no. 2, catalyic converter damage

5-5-3

Misfire on cylinder no. 3, catalyic converter damage

5-5-4

Misfire on cylinder no. 4, catalyic converter damage

5-5-5

Misfire on cylinder no. 5, catalyic converter damage

 

The Fenix 5.2 system is used on the 10 valve non turbocharged 850
The
Motronic 4.3 system is used on the 20 valve turbocharged and some non-turbo'ed 20 valve B5254 S engines
The
Bosch LH 3.2 Jetronic system is used on the 20 valve non-turbocharged except some B5254 S engines using Motronic.
 

   Note that the following codes are a compilation of descriptions from a number of sources. 
   It has been the compilation 'policy' to err on the side of too much information rather than too little. 
   Interpretation/Discretion is your responsibility.

CODE

Fenix 5.2 System 
PROBABLE CAUSE for Volvo vehicles

1-1-1

No faults

1-1-2

ECU faulty

1-1-3

Fuel injectors; From 1994 and later, Heated oxygen sensor - maximum enrichment sensed
short term fuel mixture too weak

1-1-5

Injector no. 1 cylinder faulty signal

1-2-1

Manifold Absolute Pressure (MAP) signal absent or faulty

1-2-2

Air Temperature sensor signal absent or faulty

1-2-3

Coolant temperature sensor signal absent or faulty

1-2-5

Injector no. 2 cylinder faulty signal

1-3-1

Ignition System RPM signal

1-3-2

Battery voltage too low/high

1-3-3

Throttle switch signal (idle)

1-3-5

Injector no. 3 falty signal

1-4-2

ECU faulty

1-4-3

(front) knock sensor signal missing or sensor defective

1-4-4

Fuel system load signal (missing or defective)

1-4-5

Injector no. 4 cylinder faulty signal

1-5-2

air pump valve signal absent or faulty (only on some emission controlled vehicles)

1-5-3

Rear heated oxygen sensor signal

1-5-4

EGR system - leakage or excessive flow

1-5-5

Injector no. 5 cylinder faulty signal

2-1-2

heated oxygen Sensor Signal (front sensor on 1994 and later models) absent or faulty

2-1-3

Throttle switch signal (wide-open)

2-1-4

Ignition rpm sensor signal erratic, absent or faulty

2-2-1

Lambda Operation; also Heated oxygen sensor (mixture too rich under part throttle)
/ long term fuel mixture too weak in part load stage

2-2-2

Main relay signal absent or faulty

2-2-3

Idle air control valve signal absent or faulty

2-2-4

Coolant temperature sensor signal

2-2-5

A/C pressure sensor signal absent or faulty

2-3-1

Lambda adjustment; For 1994 and later, heated oxygen sensor (mixture too lean under part throttle)
/ long term fuel mixture too rich in part load stage

2-3-2

Lambda adjustment; For 1994 and later, adaptive heated oxygen sensor control
/ long term fuel mixture too weak at idle

2-3-3

Idle valve - closed or intake air leak / long term idle air trim outside control range

2-3-4

Throttle switch signal missing

2-4-1

EGR malfunction

2-4-5

Idle air control valve - closing signal

3-1-1

Speedometer signal

3-1-2

Knock/Fuel enrichment signal missing

3-1-4

Camshft position sensor signal missing or defective

3-1-5

EVAP emission control system

3-2-1

Cold start valve - signal missing

3-2-2

Airflow meter hot wire

3-2-4

Camshaft position sensor signal erratic

3-2-5

ECU memory failure

3-3-5

TCM request for MIL (CHECK ENGINE light)

4-1-1

Throttle switch signal faulty or missing

4-1-3

EGR temperature sensor signal incorrect or missing

4-1-4

Turbo boost regulation

4-1-6

Turbo boost reduction from TCM

4-2-5

Temperature warning level no. 1

4-3-1

EGR temperature sensor faulty or missing

4-3-2

High temperature warning inside ECU

4-3-3

No rear knock sensor signal

4-3-5

Front heated oxygen sensor - slow response

4-3-6

Rear heated oxygen sensor compensation

4-4-3

Catalytic converter efficiency

4-4-4

Acceleration sensor signal

4-5-1

Misfire cylinder no. 1

4-5-2

Misfire cylinder no. 2

4-5-3

Misfire cylinder no. 3

4-5-4

Misfire cylinder no. 4

4-5-5

Misfire cylinder no. 5

5-1-1

Adaptive oxygen sensor control, provides leaner mixture at idle

5-1-2

Oxygen intergrator at maximum lean running limit

5-1-3

High temperature warning inside ECU

5-1-4

Engine cooling fan - low speed signal faulty

5-2-1

Oxygen sensor preheating front

5-2-2

Oxygen sensor preheating rear

5-3-1

Power stage - group A

5-3-2

Power stage - group B

5-3-3

Power stage - group C

5-3-4

Power stage - group D

5-3-5

TC control valve signal

5-4-1

EVAP valve signal

5-4-2

Misfire on more than one cylinder

5-4-3

Misfire on at least one cylinder

5-4-4

Misfire on more than one cylinder, catalyic converter damage

5-4-5

Misfire on at least one cylinder, catalyic converter damage

5-5-1

Misfire on cylinder no. 1, catalyic converter damage

5-5-2

Misfire on cylinder no. 2, catalyic converter damage

5-5-3

Misfire on cylinder no. 3, catalyic converter damage

5-5-4

Misfire on cylinder no. 4, catalyic converter damage

5-5-5

Misfire on cylinder no. 5, catalyic converter damage

CODE

Motronic 4.3 System
PROBABLE CAUSE for Volvo vehicles

1-1-2

ECU faulty

1-1-5

Injector no. 1 cylinder faulty signal

1-2-1

MAF signal absent or faulty

1-2-3

Coolant temperature sensor signal absent or faulty

1-2-5

Injector no. 2 cylinder faulty signal

1-3-1

Ignition System RPM signal absent or faulty

1-3-2

Battery voltage too low/high

1-3-5

Injector no. 3 faulty signal

1-4-3

(front) knock sensor signal missing or sensor defective

1-4-4

Fuel system load signal (missing or defective)

1-4-5

Injector no. 4 cylinder faulty signal

1-5-2

air pump valve signal absent or faulty (on certain engines)

1-5-4

EGR system - leakage or excessive flow (on certain engines)

1-5-5

Injector no. 5 cylinder faulty signal

2-1-2

heated oxygen Sensor Signal absent or faulty

2-1-4

Ignition rpm sensor signal intermittently absent

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 rich in part load stage

2-3-2

long term fuel mixture too lean or rich at idle

2-3-3

long term idle air trim outside control range

2-3-5

EGR controller signal absent/faulty (on certain engines)

2-4-1

EGR flow fault (on certain engines)

2-4-3

throttle position sensor signal voltage incorrect (out of range)

2-4-4

knock control at limit

2-4-5

Idle air control valve closing signal faulty/absent

3-1-1

Speedo signal missing

3-1-3

EVAP valve signal absent/faulty (on certain engines)

3-1-4

Camshft position sensor signal missing or defective

3-1-5

EVAP emission control system fault (on certain engines)

3-2-3

Malfunction indicator lamp signal faulty

3-2-5

ECU memory failure

3-3-5

request for Malfunction indicator lamp signal from auto transmission ECU

3-4-2

airconditioning relay control signal fault

3-4-3

fuel pump relay control signal fault

4-1-1

Throttle position sensor signal not within correct voltage

4-1-3

EGR temperature sensor signal incorrect or missing (on certain engines)

4-1-4

Turbo boost pressure too high

4-1-6

Turbo boost reduction from auto transmission ECU(/TCM)

4-3-2

High temperature warning inside ECU

4-3-3

rear knock sensor signal absent/faulty

4-3-5

heated oxygen sensor - slow response

4-4-2

air pump relay signal absent/faulty (on certain engines)

5-1-1

long term fuel mix too rich @ idle

5-1-2

short term fuel mix too rich @ idle

5-1-3

High temperature warning inside ECU

5-1-4

Engine cooling fan at low speed faulty

5-1-5

Engine cooling fan at high speed faulty

5-2-1

Oxygen sensor heating fault

5-2-3

signal to ECU module box cooling fan shorted to 12 volts

5-2-4

fault in transmission torque control signal

5-3-5

turbo regulator valve fault

5-4-1

EVAP valve signal fault (on certain engines)

CODE

Bosch LH 3.2 Jetronic System
PROBABLE CAUSE for Volvo vehicles

1-1-1
1-1-2
1-1-3
1-2-1
1-2-3
1-3-1
1-3-2
2-1-2
2-2-1
2-2-3
2-3-1
2-3-2
3-1-1
4-1-1
5-1-1
5-1-2

No faults
ECU faulty
short term fuel mixture too weak
MAF signal absent or faulty
Coolant temperature sensor signal absent or faulty
Ignition System RPM signal absent or faulty
Battery voltage too low/high
heated oxygen Sensor Signal absent or faulty
long term fuel mixture too weak in part load stage
Idle air control valve signal absent or faulty
Long term fuel mixture too lean or rich in part load stage
Long term fuel mixture too lean at idle
Speedo signal missing
Throttle position sensor signal absent
long term fuel mix too rich @ idle
short term fuel mix too rich

 


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