Nissan 200SX – 240SX – Altima – Frontier – Pick-up – Sentra – Xterra (1996 – 2004) OBD1 Codes

ModeL	Year	Engine identification	System
200SX 1.6/2.0L	1996-98	GA 16DE/SR20DE	ECCS
240SX 2.4L	1996-98	KA24DE	ECCS
Altima 2.4L	1996-01	KA24DE	ECCS
Frontier 2.4L	1998-04	KA24DE	ECCS
Pick-up 2.4L	1996-97	KA24DE	ECCS
Sentra 1.6L	1996-00	GA16DE	ECCS
Sentra 1.8L	2000-02	QG18DE	ECCS
Sentra 2.0L	1996-01	SR20DE	ECCS
Xterra 2.4L	2000-04	KA24DE	ECCS

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.
Sentra ->1999/all other models ->2000: Trouble codes can be displayed by the malfunction indicator lamp (MIL) or by using a Scan Tool connected to the data link connector (DLC) 1 [1] or 1 [2].
Sentra 2000 ->/all other models 2001 ->: Trouble codes can only be displayed by using a Scan Tool connected to the data link connector (DLC) 1 [1].

NOTE: The use of a Scan Tool is essential to obtain full diagnostic information.

Accessing – Mode 1

Switch ignition ON.
Check MIL illuminates.
Start engine. Allow to idle.
If MIL extinguishes, no trouble codes have been recorded.
If MIL remains illuminated, access trouble codes.

Accessing- Mode 2- Sentra ->1999/all other models ->2000

Access engine control module (ECM):

o 200SX/Aitima/Frontier/Sentra/Xterra – [1] [3].
o 240SX – [2] [2].
o Pick-up – [3].

Switch ignition ON. Do NOT start engine.
Turn diagnostic mode selector on ECM fully clockwise [4].
Wait at least 2 seconds.
Turn diagnostic mode selector on ECM fully counterclockwise [4].
Self-diagnosis now in Mode 2.
MIL should flash.
Count flashes and compare with trouble code table.

o Long flashes indicate the ‘hundreds’ of the trouble code [5] [A].
o Short flashes indicate the ‘units’ of the trouble code [5] [C].
o A short pause separates each flash [5] [B].
o A long pause separates each trouble code [5] [D].
o For example: Trouble code 102 displayed [5].

Switch ignition OFF.
Self-diagnosis will return to Mode 1.

Accessing – Mode 2 – Sentra 2000 ->/all other models 2001 ->

Trouble codes can only be displayed by using a Scan Tool connected to the data link connector (DLC) 1 [1].

Erasing – Sentra ->1999/all other models ->2000

Trouble codes can be erased by using a Scan Tool connected to the data link connector (DLC) or as follows:
With the ignition switch ON and the engine control module (ECM) in diagnosis test mode 2.
Turn diagnostic mode selector on ECM fully clockwise [4].
Trouble codes are erased.
Switch ignition OFF.
Turn diagnostic mode selector on ECM fully counterclockwise [4].
Repeat checking procedure to ensure no data remains in ECM fault memory

Erasing – Sentra 2000 ->/all other models 2001->

Trouble codes can only be erased by using a Scan Tool connected to the data link connector (DLC).

Trouble code identification

Flash code	OBD-11 code	Fault location	Probable cause
–	PO, P2, uo	Refer to OBD-11 trouble code tables	–
101	–	Camshaft position (CMP) sensor – circuit malfunction	Wiring, CMP sensor, starter motor, ECM
102	–	Mass air flow (MAF) sensor – circuit malfunction	Wiring, MAF sensor, ECM
103	–	Engine coolant temperature (ECT) sensor – circuit malfunction	Wiring, ECT sensor, ECM
104	–	Vehicle speed sensor (VSS) – circuit malfunction	Wiring, VSS, ECM
111	P1447	Evaporative emission (EVAP) canister purge system – flow malfunction	Wiring, EVAP valve, hose leak/blockage, canister, BARO sensor, MAP/BARO switching valve, ECM
112	P1165	Intake manifold air control system – vacuum check switch circuit malfunction	Wiring, vacuum check switch, hose leak/blockage, air control solenoid, ECM
114	–	Fuel trim – mixture too rich	Wiring, intake/exhaust system, H02S front, fuel system, injector, MAF sensor, ECM
115	–	Fuel trim – mixture too lean	Wiring, exhaust system, H02S front, fuel system, injector, MAF sensor, ECM
201	P1320	Ignition signal – circuit malfunction	Wiring, ignition coil/module, ignition system, CKP sensor, ECM
203	–	Closed throttle position (CTP) switch – circuit malfunction	Wiring, CTP switch, ECM
205	–	Idle air control (lAC) system – malfunction	Wiring, lAC system, ECM
208	P1900	Engine coolant blower motor – circuit malfunction	Wiring, blower motor, cooling system, ECM
213	P1440	Evaporative emission (EVAP) canister purge system – leaking/malfunction	Wiring, fuel tank/cap, hose leak/blockage, EVAP valve/canister, EVAP vent valve, BARO sensor, MAP/BARO switching valve, ECM
214	P1444	Evaporative emission (EVAP) canister purge system – control valve malfunction	Wiring, EVAP pressure sensor, hose leak/blockage, EVAP valve/canister, ECM
215	P1446	Evaporative emission (EVAP) canister purge system – vent control valve malfunction	Wiring, EVAP pressure sensor, hose leak/blockage, EVAP vent valve, EVAP canister contaminated, ECM
301	–	Engine control module (ECM) – malfunction	ECM
302	–	Exhaust gas recirculation (EGR) system – flow excessively high or low	Wiring, hose leak/blockage, EGR valve, EGRIEVAP valve, ECM
303	–	Heated oxygen sensor (H02S) -front- circuit malfunction	Wiring, H02S, intake/fuel system, injector, ECM
304	–	Knock sensor (KS) – circuit malfunction	Wiring, KS, ECM
305	P1401	Exhaust gas recirculation temperature (EGRT) sensor- circuit malfunction	Wiring, EGRT sensor, ECM
306	–	Exhaust gas recirculation (EGR) system – valve malfunction	Wiring, EGR valve, EGR back pressure transducer, hose leak/blockage, CMP sensor, MAF sensor, EGRIEVAP valve, ECM
307	–	Closed loop control – 1996-97 – inoperative	Wiring, H02S front, ECM
307	P1148	Closed loop control, bank 1 – inoperative	Wiring, H02S front, ECM
309	P1448	Evaporative emission (EVAP) canister purge system – vent control valve malfunction	Wiring, EVAP vent valve, EVAP pressure sensor, hose leak/blockage, EVAP canister contaminated, EVAP vacuum cut valve, ECM
311	P1491	Evaporative emission (EVAP) canister purge system – bypass vacuum valve malfunction	Wiring, EVAP vacuum cut/bypass valve, hose leak/blockage, EVAP pressure sensor/vent valve, EVAP canister contaminated, ECM
312	P1493	Evaporative emission (EVAP) canister purge system – control valve malfunction	Wiring, EVAP valve, hose leak/blockage, EVAP pressure sensor/vent valve, EVAP canister contaminated, ECM
401	–	Intake air temperature (IAT) sensor- circuit malfunction	Wiring, IAT sensor, ECM
402	–	Fuel temperature sensor- circuit malfunction	Wiring, fuel temperature sensor, ECM
403	–	Throttle position (TP) sensor – circuit malfunction	Wiring, TP sensor, ECM
409	–	Heated oxygen sensor (H02S) – front- slow response	Wiring, H02S, fuel/intake system, injector, exhaust system, MAF sensor, ECM
410	–	Heated oxygen sensor (H02S)- front- voltage high	Wiring, H02S, fuel system, injector, ECM
411	–	Heated oxygen sensor (H02S)- front- voltage low	Wiring, H02S, fuel/intake system, injector, ECM
412	–	Heated oxygen sensor (H02S) – front- excessively high voltage	Wiring, H02S, ECM
505	–	No self-diagnostic failure indicated	–
510	–	Heated oxygen sensor (H02S)- rear- voltage high	Wiring, H02S, fuel/intake system, injector, ECM
511	–	Heated oxygen sensor (H02S) – rear- voltage low	Wiring, H02S, fuel system, injector, ECM
512	–	Heated oxygen sensor (H02S) – rear- excessively high voltage	Wiring, H02S, ECM
513	P1776	Torque converter clutch solenoid – converter slip during lock condition	Wiring, clutch solenoid, torque converter, TCM, ECM
514	P1402	Exhaust gas recirculation (EGR) system- excessive flow	Wiring, EGRIEVAP valve, EGR valve, EGRT sensor, EGR back pressure transducer, ECM
605	–	Cylinder No.4 – misfire	Wiring, mechanical fault, fuel system, EGR valve, injector, intake/ignition system, CKP sensor, H025 front, ECM
606	–	Cylinder No.3 – misfire	Wiring, mechanical fault, fuel system, EGR valve, injector, intake/ignition system, CKP sensor, H02S front, ECM
607	–	Cylinder No.2 – misfire	Wiring, mechanical fault, fuel system, EGR valve, injector, intake/ignition system, CKP sensor, H025 front, ECM
608	–	Cylinder No.1 – misfire	Wiring, mechanical fault, fuel system, EGR valve, injector, intake/ignition system, CKP sensor, H02S front, ECM
701	–	Random misfire	Wiring, mechanical fault, fuel system, EGR valve, injector, intake/ignition system, CKP sensor, H025 front, ECM
702	–	Calalytic converter – efficiency below limit	Catalytic converter, wiring, intake/exhaust system, injector, ECM
704	–	Evaporative emission (EVAP) canister purge system – pressure sensor malfunction	Wiring, EVAP pressure sensor, hose leak/blockage, EVAP vent/control valve, EVAP canister, ECM
705	–	Evaporative emission (EVAP) canister purge system – leaking/malfunction	Wiring, fuel tank/cap, hose leak/blockage, EVAP valve/canister, EVAP vent valve, BARO sensor, MAP/BARO switching valve, ECM
706	–	Mixture control – malfunction	Wiring, intake/exhaust system, injector, fuel system, MAF sensor, ECM
707	–	Heated oxygen sensor (H02S) – rear- circuit malfunction	Wiring, H025, intake/fuel system, injector, ECM
715	–	Evaporative emission (EVAP) canister purge system – large leak	EVAP canister purge system, hose leak, EVAP pressure sensor/vent valve, fuel filler cap, ECM
801	P1490	Evaporative emission (EVAP) canister purge system – bypass vacuum valve malfunction	Wiring, EVAP bypass/cut valve, hose leak/blockage, ECM
801	P1441	Evaporative emission (EVAP) canister purge system – bypass vacuum cut valve malfunction	Wiring, EVAP bypass vacuum cut valve, EVAP cut valve/pressure sensor, hose leak/blockage, ECM
802	–	Crankshaft position (CKP) sensor – circuit malfunction	Wiring, CKP sensor, ECM
803	P1108	Manifold absolute pressure (MAP) sensor – circuit malfunction	Wiring, MAP sensor, ECM
804	P1605	TCM diagnosis communication line – malfunction	Wiring, TCM
805	P1110	Camshaft position (CMP) actuator – circuit malfunction	Wiring, CMP actuator, ECM
807	–	Evaporative emission (EVAP) canister purge system – 1996-97 – control valve malfunction	Wiring, EVAP control valve, EVAP valve/pressure sensor, hose leak/blockage, ECM
807	P1492	Evaporative emission (EVAP) canister purge system – 1998 – control valve malfunction	Wiring, EVAP control valve, EVAP valve/pressure sensor, hose leak/blockage, ECM
901	–	Heated oxygen sensor (H02S)- front- heater circuit malfunction	Wiring, H02S, ECM
902	–	Heated oxygen sensor (H02S) – rear- heater circuit malfunction	Wiring, H02S, ECM
903	–	Evaporative emission (EVAP) canister purge system – vent control valve circuit malfunction	Wiring, EVAP vent control valve, EVAP breather valve/pressure sensor, hose leak/blockage, ECM
904	P1550	Torque converter clutch solenoid – 1996-97 – voltage low	Wiring, clutch solenoid, TCM, ECM
904	P1775	Torque converter clutch solenoid – 1998 – voltage low	Wiring, clutch solenoid, TCM, ECM
905	P1336	Crankshaft position (CKP) sensor – rotor teeth damage	Wiring, CKP sensor, ECM
908	–	Engine coolant temperature – too low for closed loop control	Wiring, ECT sensor, cooling system, ECM
1003	–	Park/neutral position (PNP) switch – 1996-97 – circuit malfunction	Wiring, PNP switch, ECM
1003	P1706	Park/neutral position (PNP) switch- 1998- circuit malfunction	Wiring, PNP switch, ECM
1004	P1130	Intake manifold air control solenoid – malfunction	Wiring, control solenoid, intake system, hose leak/blockage, control vacuum check switch, ECM
1005	P1400	Exhaust gas recirculation (EGR) system/evaporative emission (EVAP) canister purge system – valve malfunction	Wiring, EGRIEVAP valve, ECM
1008	P1445	Evaporative emission (EVAP) canister purge system – 1996-97 – volume control valve malfunction	Wiring, EVAP valve, ECM
1008	–	Evaporative emission (EVAP) canister purge system – 1998 – control valve malfunction	Wiring, EVAP valve, ECM
1101	–	Park/neutral position (PNP) switch – circuit malfunction	Wiring, PNP switch, ECM
1102	–	AT – vehicle speed sensor (VSS)	Wiring, VSS, TCM
1103	–	AT -first gear selection – malfunction	Valve block
1104	–	AT – second gear selection – malfunction	Valve block
1105	–	AT – third gear selection – malfunction	Valve block
1106	–	AT -fourth gear selection – malfunction	Valve block
1107	–	Torque converter lock-up solenoid – circuit malfunction	Wiring, clutch solenoid, TCM
1108	–	AT- shift solenoid A- voltage low	Wiring, solenoid A, TCM
1201	–	AT- shift solenoid B- voltage low	Wiring, solenoid B, TCM
1203	P1760	AT- overrun clutch solenoid- voltage low	Wiring, clutch solenoid, TCM
1204	–	Torque converter clutch solenoid – voltage low	Wiring, clutch solenoid, TCM
1205	–	AT- line pressure solenoid – voltage low	Wiring, pressure solenoid, TCM
1206	P1705	AT- throttle position (TP) sensor- voltage high or low	Wiring, TP sensor, TCM, ECM
1207	–	Engine speed (RPM) – incorrect voltage signal ECM to TCM	Wiring, RPM sensor, TCM, ECM
1208	–	Transmission fluid temperature (TFT) sensor – excessively high or low voltage	Wiring, temperature sensor, TCM, ECM
1302	P1105	MAP/BARO switching valve – circuit malfunction	Wiring, MAP/BARO switching valve, ECM
1305	P1220	Fuel pump control module – circuit malfunction	Wiring, fuel pump speed resistor, fuel pump control module
1308	P1900	Engine coolant blower motor – circuit malfunction	Wiring, coolant blower motor, cooling system, ECM
–	P1031	Heated oxygen sensor (H02S) 1, heater- circuit malfunction	Wiring, H02S
–	P1032	Heated oxygen sensor (H02S) 1, heater- circuit malfunction	Wiring, H02S
–	P1065	Engine control module (ECM) – battery voltage supply	Wiring, fuse, ECM
–	P1102	Manifold absolute pressure (MAP) sensor – circuit malfunction	Wiring, MAP sensor, ECM
–	P1103	Manifold absolute pressure (MAP) sensor – circuit malfunction	Wiring, MAP sensor, ECM
–	P1104	Manifold absolute pressure (MAP) sensor – circuit malfunction	Wiring, MAP sensor, ECM
–	P1111	Camshaft position (CMP) actuator, intake – circuit malfunction	Wiring, CMP actuator, ECM
–	P1121	Throttle motor – malfunction	Throttle motor, ECM
–	P1122	Throttle motor – circuit malfunction	Wiring, throttle motor, ECM
–	P1124	Throttle motor – short circuit	Wiring, throttle motor, throttle motor relay, ECM
–	P1126	Throttle motor – open circuit – Sentra 2002	Wiring, throttle motor, throttle motor relay, ECM
–	P1126	Thermostat – stuck open – except Sentra 2002	Wiring, thermostat, ECT sensor
–	P1128	Throttle motor – short circuit	Wiring, throttle motor, ECM
–	P1131	Intake manifold air control solenoid – malfunction	Wiring, control solenoid, intake system, hose leak/blockage, control vacuum check switch, ECM
–	P1132	Intake manifold air control solenoid – circuit malfunction	Wiring, intake manifold air control solenoid, ECM
–	P1137	Intake manifold air control actuator position sensor – circuit malfunction	Wiring, intake manifold air control actuator position sensor, ECM
–	P1138	Intake manifold air control solenoid – circuit malfunction	Wiring, intake manifold air control solenoid, intake manifold air control actuator position sensor, ECM
–	P1140	Intake valve timing control position sensor, bank 1 – circuit malfunction	Wiring, intake valve timing control position sensor, ECM
–	P1143	Heated oxygen sensor (H02S) 1 – voltage low	Wiring, mixture, H02S, ECM
–	P1144	Heated oxygen sensor (H02S) 1 – voltage high	Wiring, mixture, H02S, ECM
–	P1146	Heated oxygen sensor (H02S) 2- voltage low	Wiring, mixture, H02S, ECM
–	P1147	Heated oxygen sensor (H02S) 2 – voltage low	Wiring, injectors, fuel pressure, air leak, H02S, ECM
–	P1163	Heated oxygen sensor (H02S)	Wiring, H02S, ECM
–	P1164	Heated oxygen sensor (H02S)- voltage high	Wiring, mixture, H02S, ECM
–	P1166	Heated oxygen sensor (H02S) 2 -voltage low	Wiring, mixture, H02S, ECM
–	P1167	Heated oxygen sensor (H02S) 2 – voltage low	Wiring, injectors, fuel pressure, air leak, H02S, ECM
–	P1168	Closed loop control, bank 2 – inoperative	Wiring, H02S front, ECM
–	P1169	Heated oxygen sensor (H02S) 3 – voltage low	Wiring, fuel pressure, injectors, H02S, ECM
–	P1170	Heated oxygen sensor (H02S) 3 – voltage low	Wiring, fuel pressure, injectors, H02S, ECM
–	P1217	Engine over temperature	Cooling system, engine coolant blower motor
–	P1223	Throttle position (TP) sensor 2 – voltage low	Wiring, TP sensor
–	P1224	Throttle position (TP) sensor 2 – voltage high	Wiring, TP sensor
–	P1225	Throttle motor position sensor – learning problem, voltage low	Wiring, TP sensor 1, TP sensor 2
–	P1226	Throttle motor position sensor – learning problem	Wiring, TP sensor 1, TP sensor 2
–	P1227	Accelerator pedal position (APP) sensor 2 – voltage low	Wiring, APP sensor
–	P1228	Accelerator pedal position (APP) sensor 2 – voltage high	Wiring, APP sensor
–	P1229	Engine control module (ECM) – sensor supply voltage low/high	Wiring, APP sensor, throttle motor position sensor, MAF sensor, fuel tank pressure sensor, TP sensor(s), refrigerant pressure sensor
–	P1271	Heated oxygen sensor (H02S) 1 – voltage low	Wiring, H02S, ECM
–	P1272	Heated oxygen sensor (H02S) 1 – voltage high	Wiring, H02S, ECM
–	P1273	Heated oxygen sensor (H02S) 1 – lean mixture	H02S, fuel pressure, injectors, intake air leak
–	P1274	Heated oxygen sensor (H02S) 1 -rich mixture	H02S, fuel pressure, injectors, intake air leak
–	P1275	Heated oxygen sensor (H02S) 1 -response time	H02S, fuel pressure, injectors, intake air leak, exhaust leak, MAF sensor
–	P1276	Heated oxygen sensor (H02S) 1 – activity	Wiring, H02S
–	P1277	Heated oxygen sensor (H02S) 1 -slow response	Wiring, H02S
–	P1278	Heated oxygen sensor (H02S) 1 – slow response	Wiring, fuel pressure, injectors, MAF sensor, PCV, H02S
–	P1279	Heated oxygen sensor (H02S) 1 – slow response	Wiring, fuel pressure, injectors, MAF sensor, PCV, H02S
–	P1442	Evaporative emission (EVAP) canister purge system – small leak	EVAP canister purge system, hose leak, EVAP pressure sensor/vent valve, fuel filler cap, ECM
–	P1446	Evaporative emission (EVAP) canister purge system – very small leak	EVAP canister purge system, hose leak, EVAP pressure sensor/vent valve, fuel filler cap, ECM
–	P1456	Evaporative emission (EVAP) canister purge system – very small leak	EVAP canister purge system, hose leak, EVAP pressure sensor/vent valve, fuel filler cap, ECM
–	P1464	Fuel gauge tank sensor – voltage high	Wiring, fuel gauge tank sensor, ECM
–	P1564	Cruise control master switch – circuit malfunction	Wiring, cruise control master switch, ECM
–	P1572	Cruise control brake pedal switch – circuit malfunction	Wiring, cruise control brake pedal switch, clutch pedal position (CPP) switch, ECM
–	P1574	Cruise control vehicle speed sensor – signal malfunction	Wiring, cruise control vehicle speed sensor, ECM
–	P1610	Ignition key/engine control module (ECM) – malfunction	Incorrect ignition key, ECM
–	P1611	Immobilizer control module/engine control module (ECM) – coding	Immobilizer control module/ECM incorrectly coded
–	P1612	Immobilizer control module/engine control module (ECM) communication – malfunction	Wiring, immobilizer control module, ECM
–	P1613	Engine control module (ECM), immobilizer function – internal failure	ECM
–	P1614	Immobilizer control module/module coding plug communication – no signal	Wiring, immobilizer control module, module coding plug
–	P1615	Ignition key/immobilizer control module communication – malfunction	Incorrect ignition key, immobilizer control module
–	P1805	Brake pedal position (BPP) switch – circuit malfunction	Wiring, BPP switch