Volvo OBD1 Trouble Codes

The following trouble codes are specific to Volvo.

Volvo Trouble Codes Access

Without OBD Scan Tool

To start, the Ignition key must be at position II, engine not running. Open the hood. Locate the two diagnostic sockets just inboard of the washer fill cap. The ‘A’ connector has a jumper that is stored in the lid of the ‘A’ diagnostic connector. The jumper is used for both diagnostic connectors.

Listed below is the information retrievable from the various connections.

  • A1 Transmission
  • B1 Climate Control
  • A2 Fuel System
  • B2 Cruise Control
  • A3 ABS
  • B5 SRS
  • A5 TCU (Transmission Control)
  • B6 Power Seat
  • A6 Ignition System
  • A7 Combined Instrument
Normally ‘Check Engine Light’ information will be found in A2. Put the jumper into A2 and push the black button for 1 second. Count the red LED light as it blinks back information, blink, blink, pause, blink, blink, blink, pause, blink, blink, is an example of the response you would receive. 2-3-2 would be the code retrieved, now push the button again for 1 second, again count the blinks, keep checking for codes until one of them repeats, this means you have read all the codes.

Volvo Trouble Codes Clearance

All trouble codes must be cleared from the ECU’s memory after repairing the faults. Otherwise, code(s) would remain in the ECU’s memory indefinitely and would appear along with a new code in the event of a future problem. To clear the trouble codes, proceed as follows:

  • Push and hold the button for 6-7 seconds
  • Release, and as soon as the LED comes on push and hold the button for another 6-7 seconds.
  • Now push the button for 1 second and read the codes again, you should get 1-1-1 (no faults).
The codes can also be cleared by disconnecting the battery for 2 minutes.

Volvo Generic Trouble Codes

  • Click the table header to sort the table data by the respective column heading.
  • Type keyword(s) in the table’s search box for a quick display of the searched data.

Code(s)Description
A1 - Transmission
111No faults found
112Solenoid S1 short circuit to battery voltage
113Transmission control module (TCM) fault
114Program selector open circuit or short circuit to supply
121Solenoid S1 short circuit to ground or control module fault
122Solenoid S1 open circuit
123Solenoid STH short circuit to battery voltage
124Mode selector faulty or short circuit to ground
131Solenoid STH open/short circuit or control module fault
132Transmission control module(TCM) fault
134Faulty load signal from ignition control module
141Oil temperature sensor short circuit to ground
142Oil temperature sensor open circuit
143Kickdown switch faulty or short to ground
211Transmission control module (TCM) fault
212S2 solenoid short circuit to battery
213Throttle position (TPS) signal too high
221S2 solenoid short circuit to ground or control module fault
222S2 solenoid open circuit
223Throttle position (TPS) sensor signal too low
231Throttle position (TPS) sensor sporadic
232Speedometer signal missing
233Incorrect speedometer signal
235High Oil temperature
245Open or short in Torque limiting circuit
311RPM signal from transmission missing
312RPM signal from transmission faulty
313Faulty signal from gear position sensor (PNP)
321Shift time too long
322Incorrect gear ratio
323Lock up slips or is not engaged
331Short circuit to battery in SL circuit
332SL solenoid open or control module fault
333SL solenoid short or control module fault
A2 - Fuel System
111No faults detected
112Fault in ECM
115Injector 1
121MAF sensor signal
123ECT signal
125Injector 2
131RPM sensor signal missing
132Battery voltage
135Injector 3
143Front knock sensor signal
145Injector 4
153Rear HO2S signal
154EGR system leakage
155Injector 5
212Front HO2S signal
214RPM sensor signal sporadic
223IAC valve opening signal
225A/C pressure sensor signal
231Long term fuel trim, part load
232Long term fuel trim, idling
233Long term idle air trim
241EGR system flow malfunction
245IAC valve closing signal
311VSS signal
314CMP sensor signal
315EVAP system
325Memory failure
335Request for MIL lighting from TCM
411TP sensor signal
413EGR temp sensor signal
414Boost pressure regulation
416Boost pressure reduction from TCM
432Temperature warning level 1
433Rear knock sensor signal
435Front HO2S slow response
436Rear HO2S compensation
443Three way cat. Efficiency
444Acceleration signal
451Misfire cylinder 1
452Misfire cylinder 2
453Misfire cylinder 3
454Misfire cylinder 4
455Misfire cylinder 5
513Temperature warning level 2
514Engine cooling fan low speed signal
521Front HO2S Preheating
522Rear HO2S Preheating
531Power stage group A
532Power stage group B
533Power stage group C
534Power stage group D
535TC control valve signal
541EVAP valve signal
542Misfire more than one cylinder
543Misfire at least one cylinder
544Misfire more than one cylinder, three way cat damage
545Misfire at least one cylinder, three way cat damage
551Misfire cylinder 1, three way cat damage
552Misfire cylinder 2, three way cat damage
553Misfire cylinder 3, three way cat damage
554Misfire cylinder 4, three way cat damage
555Misfire cylinder 5, three way cat damage
A3 - ABS
111No DTC set
121Left front wheel sensor, faulty signal 122 Right front wheel sensor, faulty signal 123 Left rear wheel sensor, faulty signal 124 Right rear wheel sensor, faulty signal 40 km/h
322Right front wheel sensor, irregular >40 km/h
323Left rear wheel sensor, irregular >40 km/h
324Right rear wheel sensor, irregular >40 km/h
411Left front wheel inlet valve, open/short
412Left front wheel return valve, open/short
413Right front wheel inlet valve, open/short
414Right front wheel return valve, open/short
415Rear valve open/short
421Rear wheel inlet valve circuit, open/short
422Rear wheel return valve circuit, open/short
423Traction control system valve, open/short
424Pressure switch for TRACS, faulty or short circuit
441Control module faulty
442Pump pressure low
443Pump motor, electrical or mechanical fault
444No power supply to valves in hydraulic unit
A6 - Ignition
111No DTC set
112Control Module fault
123Engine Coolant Temperature Sensor (ECT) from Control module missing or faulty
131Engine speed (RPM) sensor signal missing
142Control Module Fault
143Knock sensor (KS) missing or faulty
144Ignition control module load signal missing
154EGR system flow too high in system
214Engine speed (RPM) sensor signal missing sporadically
224Engine Coolant Temperature sensor (ECT) signal missing or faulty
234Throttle Position (TPS) signal missing at idle
241EGR system flow too low in system
243Throttle Position sensor (TPS) signal missing at idle
311Vehicle speed signal missing or faulty
314Camshaft Position sensor (CMP) signal missing or faulty
324Camshaft Position sensor (CMP) signal missing sporadically
411Throttle position sensor (TPS) signal from fuel injection system missing or faulty
413EGR temperature sensor signal faulty
432Control module box temperature too high level 1
433Knock sensor (KS) signal missing or faulty
513Control module box temperature too high, level 2
A7 - Combined Instrument (Trip Computer)
112Fuel gauge short circuit
113Fuel gauge open circuit
121Temp. sensor interval too short
122Temp. sensor interval too long
123Digital output 48 pulse short circuit to supply
131Digital output 12 pulse short circuit to supply
132No RPM sensor signal
133Tank signal to trip computer short to supply
B1 - Electronic climate control
111No fault
121Outside temperature sensor shorted to ground
122Outside temperature sensor open circuit or shorted to 12 volts
123Driver’s side interior temperature sensor shorted to ground
124Driver’s side interior temperature sensor open circuit or shorted to 12 volts
125Passenger’s side interior temperature sensor shorted to ground(earth)
126Passenger’s side interior temperature sensor open circuit or shorted to 12 volts
131Driver’s side air duct temperature sensor shorted to ground(earth)
132Driver’s side air duct temperature sensor open circuit or shorted to 12 volts
133Passenger’s side air duct temperature sensor shorted to ground(earth)
134Passenger’s side air duct temperature sensor open circuit or shorted to 12 volts
135No signal from engine coolant temperature sensor
141Faulty signal from driver’s side temperature selector switch
143Faulty signal from passenger’s side temperature selector switch
145Faulty signal from function selector switch
151Signal from fan speed sensor missing or too high
152Signal from fan speed sensor shorted to earth
211Driver’s side damper motor position sensor open circuit or shorted to 12 volts
212Driver’s side damper motor position sensor shorted to earth
221Passenger’s side damper motor position sensor open circuit or shorted to 12 volts
222Passenger’s side damper motor position sensor shorted to earth
231Ventilation damper motor position sensor open circuit or shorted to 12 volts
232Ventilation damper motor position sensor shorted to earth
233Floor/defrost damper motor position sensor open circuit or shorted to 12 volts
234Floor/defrost damper motor position sensor shorted to earth
235Recirculation damper motor position sensor open circuit or shorted to 12 volts
236Recirculation damper motor position sensor shorted to earth
311Driver’s side damper motor shorted to earth or shorted to 12 volts
312Passenger’s side damper motor shorted to earth or shorted to 12 volts
313Ventilation damper motor shorted to earth or shorted to 12 volts
314Floor/defrost damper motor shorted to earth or shorted to 12 volts
315Recirculation damper motor shorted to earth or shorted to 12 volts
321Driver’s side damper motor active too long
322Passenger’s side damper motor active too long
323Ventilation damper motor active too long
324Floor/defrost damper motor active too long
325Recirculation damper motor active too long
411Blower fan seized or drawing excessive current
412Driver’s side interior temperature sensor inlet fan shorted to earth
413No control voltage at driver’s side interior temperature sensor inlet fan
414Driver’s side interior temperature sensor inlet fan seized
415Passenger’s side interior temperature sensor inlet fan shorted to earth
416No control voltage at passenger’s side interior temperature sensor inlet fan
417Passenger’s side interior temperature inlet fan seized
418No control signal to blower fan power stage
419Faulty diagnostic signal from blower fan power stage
420ECU fault in program memory
511Damper motor limit position self-adjustment not carried out
B2 - Cruise Control
111No faults detected
112Abnormal speed signal
122Speed has not exceeded 22mph or no speed signal
211Control module malfunction
212Malfunction in the circuit to the vacuum pump or regulator
B5 - SRS
111No fault detected
112Sensor module fault
127SRS lamp open/short circuit
211Drivers airbag short circuit
212Drivers airbag open circuit
213Drivers airbag short circuit to ground
214Drivers airbag short circuit to supply
221Passenger airbag short circuit
222Passenger airbag open circuit
223Passenger airbag short circuit to ground
224Passenger airbag short circuit to supply
231Left belt tensioner short circuit
232Left belt tensioner open circuit
233Left belt tensioner short circuit to ground
234Left belt tensioner short circuit to supply
241Right belt tensioner short circuit
242Right belt tensioner open circuit
243Right belt tensioner short circuit to ground
244Right belt tensioner short circuit to supply