Daewoo: Lanos 1.6L – Nubira 2.0L (2000 – 2002)

NOTE: 96 & later are OBD2 systems and require a scanner. For an OBD2 code list, please see our Daewoo code list or the appropriate generic list.

ModelYearEngine identificationSystem
Lanos 1.6L2000-02A16DMIEFI-6/ITMS-6F
Nubira 2.0L2000-02T20XEDIEFI-6/ITMS-6F

General information

  • Engine control module (ECM) incorporates self-diagnosis function.
  • Malfunction indicator lamp (MIL) will illuminate if certain faults are recorded.
  • ECM operates in backup mode if sensors fail, to enable vehicle to be driven to workshop.


Trouble codes can be displayed by using a Scan Tool connected to the data link connector (DLC):

o Lanos – [1]
o Nubira – [2]


  • Ensure ignition switched OFF.
  • Disconnect battery ground lead.
  • Wait 10 seconds minimum.
  • Reconnect battery ground lead.

NOTE: Disconnecting battery ground lead may also erase memory from electronic units such as radio.

  • The engine control module (ECM) fault memory can also be erased using diagnostic equipment connected to the data link connector (DLC).

Trouble code  identification

OBD·II codeFault locationProbable cause
PO,P2,UORefer to OBD·II trouble code tables
P1106Manifold absolute pressure (MAP) sensor – intermittent voltage highWiring short to positive, MAP sensor
P1107Manifold absolute pressure (MAP) sensor – intermittent voltage lowWiring short to ground, MAP sensor
P1109Intake manifold air control valve – circuit malfunctionWiring, intake manifold air control valve, ECM
P1111Intake air temperature (IAT) sensor- intermittent voltage highWiring short to positive, IAT sensor
P1112Intake air temperature (IAT) sensor- intermittent voltage lowWiring short to ground, IAT sensor
P1114Engine coolant temperature (ECT) sensor- intermittent voltage lowWiring short to ground, ECT sensor
P1115Engine coolant temperature (ECT) sensor – intermittent voltage highWiring short to positive, ECT sensor
P1121Throttle position (TP) sensor – voltage highWiring short to positive, ECT sensor
P1122Throttle position (TP) sensor – voltage lowWiring short to ground, ECT sensor
P1130Oxygen sensor (02S) 1, bank 1 – too long to respondWiring, 025
P1133Oxygen sensor (02S) 1, bank 1 – slow responseWiring, fuel pressure, leaking injector, MAP sensor, TP sensor, 025
P1134Oxygen sensor (02S) 1, bank 1 -transition ratioWiring, 025
·P1167Oxygen sensor (02S) 1, bank 1 – rich in deceleration fuel cut-offFuel system, fuel pressure regulator, leaking injector(s)
P1171Fuel trim, under load – mixture too lean025, fuel pressure, fuel system, mechanical fault, ECM
P1181Intake manifold air control solenoid – voltage lowWiring open circuit/short to ground, intake manifold air control solenoid
P1182Intake manifold air control solenoid – voltage highWiring open circuit/short to positive, intake manifold air control solenoid
P1230Fuel pump relay- voltage lowWiring open circuit/short to ground, fuel pump relay
P1231Fuel pump relay – voltage highWiring open circuit/short to positive, fuel pump relay
P1320Crankshaft position (CKP) sensor- signal adaptation at limitWiring, CKP sensor
P1321Crankshaft position (CKP) sensor – incorrect signalWiring, CKP sensor
P1336Crankshaft position (CKP) sensor – variation not learnedLearning procedure not performed
P1380Rough road signal – malfunctionABS control module trouble code(s) stored, and or engine misfire present
P1381Rough road signal – no communication from ABS CAN data busWiring open circuit, ABS system, and/or engine misfire present
P1382Rough road signal – invalid dataWiring, ABS system
P1385Variable reluctance sensor, without ABS – circuit malfunctionWiring, variable reluctance sensor
P1391Rough road G-force sensor – implausible signalWiring, G-force sensor, CM
P1392Rough road G-force sensor – voltage lowWiring open circuit/short to ground, G-force sensor, ECM
P1393Rough road G-force sensor – voltage highWiring short to positive, G-force sensor, ECM
P1396WSSD rough road system – malfunctionWiring, G-force sensor, ECM
P1397WSSD rough road – detected/malfunctionWiring, G-force sensor, ABS control module, ECM
P1402Exhaust gas recirculation (EGR) valve – blockedWiring, EGR valve
P1403Exhaust gas recirculation (EGR) valve – malfunctionWiring, EGR valve
P1404Exhaust gas recirculation (EGR) valve – range/performance problemWiring, EGR valve
P1504Vehicle speed sensor (VSS), AT- no signalWiring, transmission control module, VSS
P1511Idle speed control {ISC) actuator – circuit malfunctionWiring, ISC actuator
P1512Idle speed control (ISC) actuator- malfunctionISC actuator
P1513Idle speed control (ISC) actuator -functional diagnosis malfunctionWiring, ISC actuator, ECM
P1537A/C compressor clutch relay – voltage highWiring short to positive, A/C compressor clutch relay
P1538A/C compressor clutch relay – voltage lowWiring short to ground, AIC compressor clutch relay
P1546AIC compressor clutch, signal – circuit malfunctionWiring, A/C compressor clutch relay
P1601Engine control module (ECM)/transmission control module (TCM) – serial peripheral communication malfunctionWiring, ECM, TCM
P1607ECM, lower power counter 1/C – reset/ malfunctionECM
P1610Engine control (EC) relay – voltage highWiring open circuit/short to positive, EC relay
P1611Engine control (EC) relay – voltage lowWiring short to ground, EC relay
P1618Serial peripheral interface, ECM – communication diagnosticsECM/TCM
P1626Immobilizer system – malfunctionNo authorization code
P1627Transmission control module/engine control module (ECM) -AID conversion malfunctionTCM/ECM
P1628Immobilizer system – communication malfunctionWiring, immobilizer control module, engine control module (ECM)
P1629Immobilizer system – malfunctionIncorrect authorization code
P1631Immobilizer system – malfunctionIncorrect authorization code
P1635Engine control module (ECM), sensor reference voltage lowWiring, ECM
P1640Engine control module (ECM), output driver modules – malfunctionWiring, ECM
P1650Engine control module (ECM), SPI communication with SIDM chip – malfunctionWiring, ECM
P1655Engine control module (ECM), SPI communication with PSVI chip – malfunctionWiring, ECM
P1660Malfunction indicator lamp (MIL) -voltage highWiring open circuit/short to positive, MIL
P1661Malfunction indicator lamp (MIL) – voltage lowWiring short to ground, MIL
P1671CAN data bus, TCM communication – missingWiring, ECM, TCM
P1672CAN data bus – bus off mode detected
P1673CAN data bus – communication malfunctionWiring, ECM, TCM
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