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Volvo 850, S70, V70, C70, XC70 Trouble Codes 1996-1998
A Little Background
Looking for 1999+ Volvo Trouble Codes?
OBD-II grew out of an effort in the late 1960s by Volkswagen to computerize the monitoring of an automobile’s running status. The thinking went, “is something wrong? Well then let’s record and remember it for the owner or technician.” 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 [citation]. It was an open format, in other words.
The “Middle” Year Volvos: 1996-1998
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 | Volvo OBD Code | Meaning of Code | Repair/Info Location (850, 1st Gen 70 Series) |
| 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 | [something] | Solenoid STH short circuit to battery voltage | viewtopic.php?t=16229 | |
| viewtopic.php?p=63292 | ||||
| 124 | Mode selector faulty or short circuit to ground | |||
| 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 | viewtopic.php?f=1&t=17383 | |
| 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 | /viewtopic.php?f=1&t=27973 | |
| 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 | /forums/viewtopic.php?f=1&t=22996 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 | |||
| 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 1996 to 1998 page 2
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.
could this be air mass flow sensor
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?