NOTE: 96 & later are OBD2 systems and require a scanner. For an OBD2 code list, please see our Volvo code list or the appropriate generic list.
Volvo: 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 accessed 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.
Volvo: Diagnostic Trouble Codes 1989-1993
| 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. |
Volvo: Diagnostic Trouble Codes 1992-2008
| Model | Year | Type | Engine Information |
|---|---|---|---|
| 240 2.3L | 1992-93 | 4 cylinder | Bosch LH-Jetronic 2.4/3.2 |
| 740 2.3L | 1992 | 4 cylinder | Bosch LH-Jetronic 2.4/3.2 |
| 740 2.3L Turbo | 1992 | 4 cylinder | Bosch LH-Jetronic 2.4/3.2 |
| 850 2.3L Turbo | 1994-97 | 4 cylinder | Bosch Motronic 4.4/ Siemens Fenix 5.1 |
| 940 2.3L/Turbo | 1992-95 | 4 cylinder | Bosch LH-Jetronic 2.4/3.2 |
| 960 3.0L | 1992 | 6 cylinder | Bosch Motronic/ Siemens Fenix |
| C30 2.5L | 2008 | B5254T3/T7 | Denso/Motronic 7.0 |
| C70 2.3L Turbo | 1998 | B5234T3 | Bosch Motronic 4.4 |
| C70 2.3/2.4L Turbo | 1999-04 | B5234T3/T9/B5244Tm | Denso/Motronic ME 7.0 |
| C70 2.5L | 2006-08 | B5254T3 | Denso/Motronic 7.0 |
| S40/V40 2.0L Turbo | 2000-04 | B4204T2/T3/T4 | Siemens EMS 2000 |
| S40 2.4L | 2004-08 | B5244S4 | Denso/Motronic ME 7.0 |
| S40 2.5L Turbo | 2004-07 | B5254T3 | Denso/Motronic ME 7.0 |
| S40 2.5L Turbo | 2008 | B5254T7 | Denso/Motronic ME 7.0 |
| S60 2.3/2.4/2.5L Turbo | 2001-06 | B5234T3/B5244T3/B5254T2/T4 | Denso/Motronic ME 7.0 |
| S60 2.4L | 2001-05 | B5244S | Denso/Motronic ME 7.0 |
| S80 2.5/2.8/2.9L Turbo | 1999-06 | B5254T2/B6284T/B6294T | Denso/Motronic ME 7.0 |
| S80 2.9L | 1999-04 | B6294S/S2 | Denso/Motronic ME 7.0 |
| S80 3.2/4.4L | 2007-08 | B6324S/B8444S | Denso/Motronic 7.0 |
| S90/V90 2.9L Turbo | 1997-98 | B6304FS2 | Bosch Motronic 4.4 |
| V50 2.4/2.5L | 2005-08 | B5244S4/B5444S7/B5254T3/T7 | Denso/Motronic 7.0 |
| V70 2.3L Turbo | 1998 | B5234T3/T6 | Bosch Motronic 4.4 |
| V70 2.3/2.4/2.5L Turbo | 1998-06 | B5234T3/T8/B5244T/T2/T3/B5254T2/T4 | Denso/Motronic ME 7.0 |
| V70 2.4L | 1998-07 | B5244S/S6 | Denso/Motronic ME 7.0 |
| V70 3.2L | 2008 | B6324S | Denso/Motronic 7.0 |
| XC70 2.5L Turbo | 2003-06 | B5254T2 | Denso/Motronic ME 7.0 |
| XC70 3.2L | 2008 | B6324S | Denso/Motronic 7.0 |
| XC90 2.5/2.9L Turbo | 2003-06 | B5254T2/B6294T | Denso/Motronic ME 7.0 |
| XC90 3.2/4.4L | 2007-08 | B6324S/B8444S | Denso/Motronic 7.0 |
volvo 740GL Reading code 144 Fuel system load signal (missing or defective) What this mean?
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V70 2 litre 5 cylinder Fenix 5.2 ECU fault codes listing? Where can you get these and remedies to correct ? Any specific information on 131 & 314 and solutions?
CODES ARE ALL 1 1 1. WILL DISCONNECTING BATTERY TURN OFF ENGINE LIGHT
What is yours phone number please i need some help i want to pay if you can?