2001 Volvo V70 XCFACTORY OEM SERVICE PROCEDURE

Engine Control Module (ECM) DTCS - B5244S

ENGINE CONTROL MODULE (ECM) DTC INDEX

OBD-II Code Volvo Code Description
P1001, P1117 ECM-1000 Engine control module (ECM), internal fault. Signal too high
P1002, P1116 ECM-1000 Engine control module (ECM), internal fault. Signal too low
P1002, P1116 ECM-1000 Engine control module (ECM), internal fault. Signal too low. Intermittent fault
P1002, P1116 ECM-1000 Engine control module (ECM), internal fault. Signal too low. Intermittent fault
P1003, P1115 ECM-100A Engine control module (ECM), internal fault. Faulty signal
P0073, P1072 ECM-1100 Outside temperature sensor. Signal too high
P0072, P1073 ECM-1100 Outside temperature sensor. Signal too low
P0072, P1073, P1113 ECM-1100 Outside temperature sensor. Signal too low. Intermittent fault
P0073, P1072, P1112 ECM-1100 Outside temperature sensor. Signal too high. Intermittent fault
P0071, P1074 ECM-110A Outside temperature sensor. Faulty signal
P0113, P0114 ECM-1200 Intake Air Temperature (IAT) Sensor. Signal too high
P0112, P0113 ECM-1200 Intake Air Temperature (IAT) Sensor. Signal too high. Intermittent fault
P0112, P0114 ECM-1200 Intake Air Temperature (IAT) Sensor. Signal too low
P0112, P0113 ECM-1200 Intake Air Temperature (IAT) Sensor. Signal too low. Intermittent fault
P0111 ECM-120A Intake air temperature (IAT) sensor inlet. Faulty signal
P0103, P0104 ECM-1300 Mass air flow (MAF) sensor. Signal too high
P0102, P0103 ECM-1300 Mass air flow (MAF) sensor. Signal too high. Intermittent fault
P0102, P0104 ECM-1300 Mass air flow (MAF) sensor. Signal too low
P0102, P0103 ECM-1300 Mass air flow (MAF) sensor. Signal too low. Intermittent fault
P0101 ECM-130A Air flow. Faulty flow
P0107, P0108, P0109 ECM-1400 Manifold absolute pressure (MAP) sensor. Signal too high
P0107, P0108 ECM-1400 Manifold absolute pressure (MAP) sensor. Signal too high. Intermittent fault
P0107, P0108, P0109 ECM-1400 Manifold absolute pressure (MAP) sensor. Signal too low
P0107, P0108 ECM-1400 Manifold absolute pressure (MAP) sensor. Signal too low. Intermittent fault
P0106 ECM-140A Manifold absolute pressure (MAP) sensor. Faulty signal
P1005, P1118 ECM-150A Mass air flow (MAF) sensor. Lower limit
P1004, P1119 ECM-150A Mass air flow (MAF) sensor. Upper limit
P0117, P0118 ECM-2000 Engine coolant temperature (ECT) sensor. Signal too high. Intermittent fault
P0117 ECM-2000 Engine coolant temperature (ECT) sensor. Signal too low
P0117, P0118 ECM-2000 Engine coolant temperature (ECT) sensor. Signal too low. Intermittent fault
P0118 ECM-2000 Engine coolant temperature (ECT) sensor. Signal too high
P0116 ECM-200A Engine coolant temperature (ECT) sensor. Faulty signal
P0125 ECM-200F Engine coolant temperature (ECT) sensor. Faulty signal
P0128 ECM-201A Thermostat. Faulty signal
P0132 ECM-2100 Front heated oxygen sensor (HO2S). Current too high
P0132 ECM-2100 Front heated oxygen sensor (HO2S). Current too high. Intermittent fault
P0131 ECM-2100 Front heated oxygen sensor (HO2S). Current too low
P0131 ECM-2100 Front heated oxygen sensor (HO2S). Current too low. Intermittent fault
P0133 ECM-210A Front heated oxygen sensor (HO2S). Faulty signal
P0134 ECM-210E Front heated oxygen sensor (HO2S). Faulty signal
P0133 ECM-210F Front heated oxygen sensor (HO2S). Faulty signal
P0135 ECM-2110 Front heated oxygen sensor (HO2S), heating. Signal too low
P0031, P0032, P0135 ECM-2110 Front heated oxygen sensor (HO2S), heating. Signal too high
P0130, P0131, P0132 ECM-2120 Front heated oxygen sensor (HO2S), control element. Signal too high
P0130, P0131, P0132 ECM-2120 Front heated oxygen sensor (HO2S), control element. Signal too low
P0138 ECM-2200 Rear heated oxygen sensor (HO2S). Signal too high
P0137 ECM-2200 Rear heated oxygen sensor (HO2S). Signal too low
P0136 ECM-220A Rear heated oxygen sensor (HO2S). Faulty signal
P0136, P0170 ECM-220F Rear heated oxygen sensor (HO2S). Faulty signal
P0036, P0037, P0141 ECM-2210 Rear heated oxygen sensor (HO2S), heating. Faulty signal
P0038, P0141 ECM-2210 Rear heated oxygen sensor (HO2S), heating. Signal too high
P0037, P0141 ECM-2210 Rear heated oxygen sensor (HO2S), heating. Signal too low
P0161, P0201 ECM-2300 Injector cylinder 1. Faulty signal
P0202 ECM-2310 Injector cylinder 2. Faulty signal
P0203, P2235 ECM-2320 Injector cylinder 3. Faulty signal
P0204 ECM-2330 Injector cylinder 4. Faulty signal
P0205 ECM-2340 Injector cylinder 5. Faulty signal
P0230, P0628, P0629 ECM-2400 Fuel pump (FP) relay. Signal too high
P0171, P0172 ECM-250A Long-term fuel trim. Lower limit
P0171, P0172 ECM-250A Long-term fuel trim. Upper limit
P0324, P0340 ECM-3000 Camshaft position (CMP) sensor. Faulty signal
P0341 ECM-300A Camshaft position (CMP) sensor. Faulty signal
P0335, P0337 ECM-3100 Engine speed (RPM) sensor. Faulty signal
P0336, P0339 ECM-310A Engine speed (RPM) sensor. Faulty signal
P0339 ECM-310A Engine speed (RPM) sensor. Intermittent fault
P0350 ECM-3200 Ignition coil. Faulty signal
P0351 ECM-3300 Ignition coil cylinder 1. Faulty signal
P0352 ECM-3310 Ignition coil cylinder 2. Faulty signal
P0353 ECM-3320 Ignition coil cylinder 3. Faulty signal
P0354 ECM-3330 Ignition coil cylinder 4. Faulty signal
P0355 ECM-3340 Ignition coil cylinder 5. Faulty signal
P0238, P0328 ECM-3400 Knock sensor (KS). Signal too high
P0327 ECM-3400 Knock sensor (KS). Signal too low
P0326 ECM-340A Knock sensor (KS). Too little roar
P0326 ECM-340A Knock sensor (KS). Too much roar
P0333 ECM-3410 Rear knock sensor (KS). Signal too high
P0332 ECM-3410 Rear knock sensor (KS). Signal too low
P0331 ECM-341A Rear knock sensor (KS). Too little roar
P0331 ECM-341A Rear knock sensor (KS). Too much roar
P0300, P0301 ECM-3502 Misfire. Cylinder 1
P0300, P0302 ECM-3502 Misfire. Cylinder 2
P0300, P0303 ECM-3502 Misfire. Cylinder 3
P0300, P0304 ECM-3502 Misfire. Cylinder 4
P0300, P0305 ECM-3502 Misfire. Cylinder 5
P0305 ECM-3502 Misfire. Multiple cylinders
P0300, P0301 ECM-3503 Misfire. Cylinder 1
P0300, P0302 ECM-3503 Misfire. Cylinder 2
P0300, P0303 ECM-3503 Misfire. Cylinder 3
P0300, P0304 ECM-3503 Misfire. Cylinder 4
P0300, P0305 ECM-3503 Misfire. Cylinder 5
P0300 ECM-3503 Misfire. Multiple cylinders
P0443 ECM-4000 Canister purge (CP) valve. Signal too high
P0443 ECM-4000 Canister purge (CP) valve. Signal too low
P0446, P0447, P0448 ECM-4010 EVAP canister shut-off valve. Faulty signal
P0453 ECM-4020 Fuel tank pressure sensor. Signal too high
P0452, P0453 ECM-4020 Fuel tank pressure sensor. Signal too high. Intermittent fault
P0452 ECM-4020 Fuel tank pressure sensor. Signal too low
P0452, P0453 ECM-4020 Fuel tank pressure sensor. Signal too low. Intermittent fault
P0451 ECM-402A Fuel tank pressure sensor. Faulty signal
P1051, P1457 ECM-4038 Fuel tank filler cap missing. Major leak
P0440 ECM-4047 Canister purge (CP) valve / EVAP canister shut-off valve. Canister purge (CP) valve leakage
P0440 ECM-4047 Canister purge (CP) valve / EVAP canister shut-off valve. EVAP canister shut-off valve clogged
P0440 ECM-4047 Canister purge (CP) valve / EVAP canister shut-off valve. EVAP canister shut-off valve leakage
P0461, P0462, P0463, P0464 ECM-4050 Fuel level sensor. Faulty signal
P0461 ECM-405A Fuel level sensor. Faulty signal
P0420 ECM-4201 Three-way catalytic converter (TWC) efficiency. Power deterioration
P0454, P0456 ECM-4308 Leak diagnostic. Rough leak
P0454, P0456 ECM-4308 Leak diagnostic. Small leak
P0532, P0533 ECM-5000 Air conditioning (A/C) pressure sensor. Signal too low
P0532 ECM-5000 Air conditioning (A/C) pressure sensor. Signal too low. Intermittent fault
P0532, P0533 ECM-5000 Air conditioning (A/C) pressure sensor. Signal too high
P0533 ECM-5000 Air conditioning (A/C) pressure sensor. Signal too high. Intermittent fault
P0531 ECM-500A Air conditioning (A/C) pressure sensor. Faulty signal
P0531 ECM-500A Air conditioning (A/C) pressure sensor. No signal
P0500, P1054 ECM-510D Vehicle speed signal. Faulty signal
P0152, P0337, P1007, P1336 ECM-5200 Starter motor signal. Signal too low
P0152, P0338, P1007, P1336 ECM-5200 Starter motor signal. Signal too high
P0502, P0700, P1057, P1618 ECM-530D Diagnostic trouble code (DTC) in transmission control module (TCM). Faulty signal
P0602, P1058, P1619 ECM-531D Diagnostic trouble code (DTC) in combined instrument panel. Faulty signal
P1620 ECM-532D MIL requested by throttle unit. Faulty signal
P0645, P0646, P0647 ECM-6000 Air conditioning (A/C) relay. Signal too high
P0645, P0647, P1647 ECM-6000 Air conditioning (A/C) relay. Signal too high. Intermittent fault
P0645, P0646, P0647 ECM-6000 Air conditioning (A/C) relay. Signal too low
P0645, P0646, P1646 ECM-6000 Air conditioning (A/C) relay. Signal too low. Intermittent fault
P0480, P0483, P0484, P0485, P0691, P1480 ECM-6100 Engine cooling fan control module. Faulty signal
P0480, P0692 ECM-6100 Engine cooling fan control module. Signal too high
P0480, P0691 ECM-6100 Engine cooling fan control module. Signal too low
P0506 ECM-620A Idling speed. Too little response
P0507 ECM-620A Idling speed. Too much response
P0010, P0075 ECM-6400 Camshaft reset valve. Signal missing
P0010, P0077, P1076 ECM-6400 Camshaft reset valve. Signal too high
P0010, P0076, P1076 ECM-6400 Camshaft reset valve. Signal too low
P0011, P1077 ECM-640A Camshaft reset valve. Faulty signal
P0011, P0012, P1330 ECM-640F Camshaft reset valve. Faulty signal
P1010, P1621, P1632 ECM-710A CAN communication. Faulty signal
P1011, P1622 ECM-7110 Engine control module (ECM), internal fault. Faulty signal
P1012, P1623 ECM-7120 Engine control module (ECM), internal fault. Faulty signal
P0666, P0669, P1636 ECM-7140 Engine control module (ECM), internal fault. Signal too high
P1636 ECM-7140 Engine control module (ECM), internal fault. Signal too high. Intermittent fault
P0668, P0669, P1635 ECM-7140 Engine control module (ECM), internal fault. Signal too low
P1635 ECM-7140 Engine control module (ECM), internal fault. Signal too low. Intermittent fault
P0634, P1048, P1637, P1638 ECM-715D Engine control module (ECM), high temperature. Temperature too high
P0634, P1049, P1638 ECM-716D Engine control module (ECM), high temperature. Temperature too high
P1081, P1670 PC167 ECM-720A Immobilizer communication. Faulty communication
P1081 PC426 ECM-720A Immobilizer communication. Incorrect VIN code
P1081, P1670 PC426 ECM-720A Immobilizer communication. No communication
P0603 ECM-8000 +30-supply to control module. Open-circuit
P0563 ECM-8010 Battery voltage. Charge too high
P0542 ECM-8010 Battery voltage. Charged too long
P0560, P0685 ECM-820A System relay. Faulty signal
P0608 ECM-8400 5 volt power supply. Signal too high. Intermittent fault
P0608 ECM-8400 5 volt power supply. Signal too high. Permanent fault
P0608 ECM-8400 5 volt power supply. Signal too low. Intermittent fault
P0608 ECM-8400 5 volt power supply. Signal too low. Permanent fault
P0607 ECM-900E Engine control module (ECM) Internal fault
P0600, P1628, P1629 ECM-901A Engine control module (ECM) communication. Faulty signal
P1019, P1611, P1612 ECM-902A Communication with throttle unit. Faulty signal
P1020 ECM-902B Communication with throttle unit. Signal too high
P1020 ECM-902B Communication with throttle unit. Signal too low
P1021 ECM-903F Throttle position (TP). Signal missing
P1021, P1610 ECM-903F Throttle position (TP). Signal too high
P1604 ECM-910E Throttle valve. Internal fault
P1605 ECM-911A Throttle unit communication. Faulty communication
P1606 ECM-912A Communication with the engine control module (ECM). Signal missing
P1614 ECM-913F Throttle position (TP). Non plausible request
P0221, P1026, P1293 ECM-914F Throttle position (TP) sensor 1 and 2. Faulty signal
P0121, P0122, P0220, P1027 ECM-9150 Throttle position (TP) sensor 1. Faulty signal
P0221, P0222, P0225, P1028 ECM-9160 Throttle position (TP) sensor 2. Faulty signal
P1029, P1281, P1520 ECM-917F Accelerator pedal position. Faulty signal
P1030, P1520 ECM-9180 Accelerator pedal (AP) position sensor. Faulty signal
P1055, P1520 ECM-918F Accelerator pedal (AP) position sensor. Faulty signal
P1600 ECM-9190 Throttle position (TP). Faulty current
P1603 ECM-91A7 Throttle position (TP). Faulty control
P1603 ECM-91A7 Throttle position (TP). Faulty control
P1602 ECM-91B7 Throttle position (TP). Faulty position
P1034, P1528 ECM-91CF Brake pedal position. Faulty signal
P1525 ECM-91DF Brake pedal position. Faulty position
P1607 ECM-91E0 Throttle valve. Too high supply voltage
P1601 ECM-91F0 Throttle position (TP). Faulty current
P1037, P1560, P2135 ECM-9200 Cruise control. Faulty signal
P1037, P1560 ECM-9200 Cruise control. Signal too high
P1038 ECM-921F Clutch pedal position. Faulty position
P1039, P1660, P1661, P1662, P1663 ECM-922A Cruise control. Faulty signal
P0579, P0805, P0807, P0808, P1040 ECM-9300 Clutch pedal position sensor. Faulty signal
P0805, P0808, P1040 ECM-9300 Clutch pedal position sensor. Signal too high
P0805, P0807, P0808, P1040 ECM-9300 Clutch pedal position sensor. Signal too low
P0806 ECM-930A Clutch pedal sensor. Faulty signal
P0571, P0572, P0573, P1041, P1513, P2126, P2131 ECM-9400 Brake pedal sensor. Faulty signal
P0573, P1513 ECM-9400 Brake pedal sensor. Signal too high
P0572, P0573, P1513 ECM-9400 Brake pedal sensor. Signal too low
P0571 ECM-941F Brake pedal position. Faulty signal
P0120, P1042 ECM-950F Accelerator pedal (AP) position sensor. Faulty signal
P0121, P1052 ECM-951F Accelerator pedal (AP) position sensor. Faulty signal
P0222, P0223, P1043, P2126, P2127 ECM-9520 Accelerator pedal (AP) position sensor. Faulty signal
P0222, P0223, P1043 ECM-9520 Accelerator pedal (AP) position sensor. Signal missing
P0222, P0223, P1043, P2128 ECM-9520 Accelerator pedal (AP) position sensor. Signal too high
P0222, P0223, P1043, P2127 ECM-9520 Accelerator pedal (AP) position sensor. Signal too low
P0123, P1044, P2123 ECM-9530 Accelerator pedal (AP) position sensor. Signal too high
P0122, P1044, P2122 ECM-9530 Accelerator pedal (AP) position sensor. Signal too low
P0228, P1045 ECM-9540 Accelerator pedal (AP) sensor power supply. Signal too high
P0227, P1045 ECM-9540 Accelerator pedal (AP) sensor power supply. Signal too low
- ECM-980F Air flow. Faulty flow
- ECM-9818 Brake vacuum. Too low vacuum
P0600, U0101 ECM-A00B , Transmission control module communication. Faulty signal
P0600 PC121 U0121 ECM-A02B Communication, control module for anti-lock brakes (ABS). Faulty signal
P0600 PC140 U0141 ECM-A03B Communication, Central electronic module. Faulty signal
P1082 ECM-D00E Front heated oxygen sensor (HO2S). Faulty signal
P0600 ECM-E000 Control module communication. Faulty communication
P1630 ECM-E003 Configuration fault. Faulty configuration
- ECM-XXXX Unknown diagnostic trouble code (DTC) for the current control module version
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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