Dodge Avenger 2.0/2.5L (1997 – 2000) OBD1 Codes

Model	Year	Engine identification	System
Avenger 2.0L	1997-99	420A	SBEC III/Mitsubishi MPI
Avenger 2.5L	1997-00	6G73	SBEC III/Mitsubishi MPI

General information

Malfunction indicator lamp (MIL) will illuminate or flash if certain faults are recorded.
ECM operates in backup mode if sensors fail, to enable vehicle to be driven to repair shop.
Trouble codes can be displayed by the MIL or by using a Scan Tool connected to the data link connector(s) (DLC).

Accessing

Flash codes

Within 5 seconds switch the ignition key ON-OFF-ON-OFF-ON .
Count MIL flashes. Note trouble codes.
Each trouble code consists of two groups [1] [A].
The first group of flashes indicate the ‘tens’ of the trouble code.
The second group of flashes indicate the ‘units’ of the trouble code.
A short pause separates ‘tens’ and ‘units’ [1] [B].
A long pause separates each trouble code [1] [C].
For example: Trouble code 21 displayed [1].

P codes, Hex codes & ORB codes

• Trouble codes can be displayed by using a Scan Tool connected to the data link connector(s) (DLC) [2]

Erasing

NOTE: Disconnecting battery ground lead may cause driveability problems until the engine management system relearns basic values.

Ensure ignition switched OFF.
Disconnect battery ground cable for at least 5 minutes.
Reconnect battery ground cable.
Repeat accessing procedure to ensure no trouble codes remain in ECM fault memory.

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

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

Trouble code identification

Scan code Ptype	Fault location	Probable cause
PO, P2,UO	Refer to OBO-II trouble code tables	–
P1294	Idle speed control (ISC) system -rpm lower/ higher than expected	Wiring, air leak, throttle valve tight/sticking, lAC valve
P1295	Throttle position (TP) sensor -no 5 volt supply	Wiring, TP sensor, ECM
P1296	Manifold absolute pressure (MAP) sensor no 5 volt supply	Wiring, ECM
P1297	Manifold absolute pressure (MAP) sensor	Wiring, hose connection(s), MAP sensor
P1390	Timing belt jumped 1 tooth or more	Timing belt loose/jumped position
P1391	Crankshaft position (CKP) sensor/camshaft position (CMP) sensor -intermittent signal	Wiring, poor connection, air gap, CKP sensor, CMP sensor
P1486	Evaporative emission (EVAP) system blockage detected	Hose connection(s), hose blocked/trapped, EVAP canister
P1487	Engine coolant blower motor relay -high speed -circuit malfunction	Wiring openlshort circuit, engine coolant blower motor relay -high speed
P1489	NC condenser blower motor relay -high speed	Wiring open/short circuit, engine coolant blower motor relay -high speed
P1490	Engine coolant blower motor relay -low speed	Wiring open/short circuit, engine coolant blower motor relay -low speed
P1492	Ambient/battery temperature sensor -voltage high	Wiring, ambient/battery temperature sensor
P1493	Ambient/battery temperature sensor -voltage low	Wiring, ambient/battery temperature sensor
P1494	Evaporative emission (EVAP) leak detection pump -pressure switch	Wiring, hose leaklblockage, EVAP leak detection pump
P1495	Evaporative emission (EVAP) leak detection pump solenoid	Wiring open/short circuit, hose leakl blockage, EVAP leak detection pump solenoid
P1496	Manifold absolute pressure (MAP) sensor 5 volt output low	Wiring, MAP sensor
P1696	Engine control module (ECM) -EEPROM error	ECM
P1697	Engine control module (ECM) -EEPROM error	ECM
P1698	CAN data bus, transmission control module (TCM) -no signal	Wiring, TCM
P1899	Park/neutral position (PNP) switch -input circuit malfunction	Wiring, PNP switch, ECMITCM

Flash code	Scan code Hex type	Scan codeDRB IIItype	Fault location	Probable cause
21			Heated oxygen sensor (H02S) 1/2, bank 1/2 circuit malfunction/incorrectsignal/voltage low/high	Wiring, fuel pressure, injector control,EVAP canister purge valve, compression,air filter blocked, H02S
	98	155	Heated oxygen sensor (H02S) 1, bank 1 -low voltage	Wiring short circuit to ground, exhaust leak, H02S
	3E	62	Heated oxygen sensor (H02S) 1, bank 1 -high voltage	Wiring short circuit to positive, fuel pressure, injector control, EVAP canister purge valve, air filter blocked, H02S
	66	102	Heated oxygen sensor (H02S) 1, bank 1 -slow response	Wiring, heating inoperative, H02S
	20	32	Heated oxygen sensor (H02S) 1, bank 1 -no activity detected	Wiring open circuit, heating inoperative, H02S
	67	103	Heated oxygen sensor (H02S) 1, bank 1 -heater control -circuit malfunction	Wiring, H02S
	9C	156	Heated oxygen sensor (H02S) 2, bank 1 -low voltage	Wiring short circuit to ground, exhaust leak, H02S
	7E	126	Heated oxygen sensor (H02S) 2, bank 1 -high voltage	Wiring short circuit to positive, catalytic converter, H02S
	81	129	Heated oxygen sensor (H02S) 2, bank 1 no activity detected	Wiring, heating inoperative, H02S
	69	105	Heated oxygen sensor (H02S) 2, bank 1,heater control -circuit malfunction	Wiring, H02S
	42	66	Heated oxygen sensor (H02S) 1, bank 2 -high voltage	Wiring short to positive, H02S, ECM
	41	65	Heated oxygen sensor (H02S) 1, bank 2 -no activity detected	Wiring, H02S, ECM
	7A	122	Heated oxygen sensor (H02S) 1, bank 2 -slow response	Wiring, heating inoperative, H02S
	7C	124	Heated oxygen sensor (H02S) 1, bank 2,heater control -circuit malfunction	Wiring, H02S, ECM
	70	125	Heated oxygen sensor (H02S) 2, bank 2, heater control -circuit malfunction	Wiring, H02S, ECM
	7F	127	Heated oxygen sensor (H02S) 2, bank 2 -high voltage	Wiring short to positive, H02S, ECM
	82	130	Heated oxygen sensor (H02S) 2, bank 2 no activity detected	Wiring, H02S, ECM
	85	181	Heated oxygen sensor (H02S) 1, bank 2 -low voltage	Wiring short to ground, exhaust leak, H02S, ECM
	86	182	Heated oxygen sensor (H02S) 2, bank 2 -low voltage	Wiring short to ground, exhaust leak,H02S, ECM
31			Evaporative emission (EVAP) canisterpurge valve -open/short circuit	Wiring, EVAP canister purge valve
	71	113	Evaporative emission (EVAP) system incorrect flow detected	Hose connection(s), intake leak, EVAP canister purge valve
	AO	160	Evaporative emission (EVAP) systemsmall leak detected	Hose connection(s), intake leak, EVAPcanister, EVAP canister purge valve
	12	18	Evaporative emission (EVAP) canister purge valve -circuit malfunction	Wiring open/short circuit, EVAP canister purge valve
	A1	161	Evaporative emission (EVAP) system large leak detected	Hose connection(s), intake leak, EVAPcanister, EVAP canister purge valve
	BB	187	Evaporative emission (EVAP) system -blockage detected	Hose connection(s), hose blocked/trapped, EVAP canister
	B8	184	Evaporative emission (EVAP) leakdetection pump -pressure switch	Wiring, hose leaklblockage, EVAP leak detection pump
	B7	183	Evaporative emission (EVAP) leak detection pump solenoid	Wiring open/short circuit, hose leakl blockage, EVAP leak detection pumpsolenoid
32			Exhaust gas recirculation (EGR) solenoid/system -circuit malfunction	Wiring, hoses, EGR solenoid
	2E	46	Exhaust gas recirculation (EGR) system -insufficient flow detected	Hose leaklblockage, wiring, EGR valve, EGR solenoid
	11	17	Exhaust gas recirculation (EGR) circuit malfunction	Wiring open/short circuit, EGR solenoid
33	10	16	Ale compressor clutch relay -voltage low/high	Wiring open/short circuit, AlC compressorclutch relay
35			Engine coolant blower motor relay/ AlCcondenser blower motor relay -low/highspeed	Wiring open/short circuit, engine coolantblower motor relay -low/ high speed
	8B	139	Engine coolant blower motor relay -highspeed -circuit malfunction	Wiring open/short circuit, engine coolant blower motor relay -high speed
	50	93	AlC condenser blower motor relay -high speed	Wiring open/short circuit, engine coolantblower motor relay -high speed
	5C	92	Engine coolant blower motor relay -lowspeed	Wiring open/short circuit, engine coolantblower motor relay -low speed
37	72	114	Park/neutral position (PN P) switch -inputcircuit malfunction	Wiring, PNP switch, ECMfTCM
41	OB	11	Alternator, field control -circuit malfunction	Wiring open/short circuit, alternator,battery
42			Fuel pump relay/engine control relay/ fuel level sensor -circuit malfunction	Wiring open/short circuit, fuel pump relay, engine control relay, fuel level sensor
	65	101	Fuel pump relay	Wiring open/short circuit, fuel pump relay
	OA	10	Engine control relay	Wiring open/short circuit, engine control relay
	2C	44	Engine control relay	Wiring open circuit, engine control relay
	95	149	Fuel level sensor	Wiring open circuit, fuel level sensor
	96	150	Fuel level sensor	Wiring short circuit to positive, fuel levelsensor
	97	151	Fuel level sensor	Wiring, fuel level sensor
43			Random/multiple cylinder(s) -misfire detected	Wiring, spark plug(s), HT lead(s), injector(s), ignition coil(s), low compression
	6A	106	Random/multiple cylinder(s) -misfire detected	Wiring, spark plug(s), HT lead(s), injector(s), ignition coil(s),low compression
	68	107	Cylinder 1 -misfire detected	Wiring, engine mechanical fault, ignition/fuel system, injector
	6C	108	Cylinder 2 -misfire detected	Wiring, engine mechanical fault, ignition/fuel system, injector
	60	109	Cylinder 3 -misfire detected	Wiring, engine mechanical fault, ignition/fuel system, injector
	6E	110	Cylinder 4 -misfire detected	Wiring, engine mechanical fault, ignition/fuel system, injector
	AE	174	Cylinder 5 -misfire detected	Wiring, engine mechanical fault, ignition/fuel system, injector
	AF	175	Cylinder 6 -misfire detected	Wiring, engine mechanical fault, ignition/fuel system, injector
	28	43	Ignition coil A, primary/secondary circuit malfunction	Wiring, ignition coil
	2A	42	Ignition coil B, primary/secondary circuit malfunction	Wiring, ignition coil
44			Ambient/battery temperature sensor voltage low/high	Wiring, ambient/battery temperature sensor
	9A	154	Ambient/battery temperature sensor voltage high	Wiring, ambient/battery temperature sensor
	99	153	Ambient/battery temperature sensor voltage low	Wiring, ambient/battery temperature sensor
	47	71	Ambient/battery temperature sensorrange/performance problem	Wiring, ambient/battery temperature sensor
45	89	137	Transmission control system malfunction	Wiring, TCM
46	6	6	Alternator -voltage high .	Wiring, battery, alternator
47	5	5	Alternator -voltage low	Wiring, battery, alternator drive belt,alternator
51			System too lean, bank 1/2	Intake/exhaust leak, MAP sensor, fuel pressure/pump, ECT sensor, injector(s),H02S
	77	119	System too lean, bank 1	Intake/exhaust leak, MAP sensor, fuel pressure/pump, ECT sensor, injector(s),H02S
	79	121	System too lean, bank 2	Intake/exhaust leak, MAP sensor, fuel pressure/pump, ECT sensor, injector(s),H02S
52			System too rich, bank 1/2	Intake blocked, EVAP canister purge valve, fuel pressure, EGR system,injector(s), H02S
	76	118	System too rich, bank 1	Intake blocked, EVAP canister purge valve, fuel pressure, EGR system,injector(s), H02S
	78	120	System too rich, bank 2	Intake blocked, EVAP canister purge valve, fuel pressure, EGR system,injector(s), H02S
53			Engine control module (ECM)/CAN data bus -internal faulVmalfunction	Wiring, connected system, ECM
	2	2	Engine control module (ECM) -internal fault	ECM
	44	68	CAN data bus malfunction	Wiring, connected system, ECM
54	1	1	Camshaft position (CMP) sensor no signal	Wiring, CMP sensor
62	30	48	Engine control module (ECM) EEPROM error	ECM
63	31	49	Engine control module (ECM) EEPROM error	ECM
64	70	112	Catalytic converter, bank 1 -efficiencybelow threshold	Wiring, exhaust leak, catalytic converter,H02S 2
65	73	115	Power steering pressure (PSP) switch -range/performance problem	Wiring, PS system, PSP switch
66	60	96	CAN data bus, transmission control module (TCM) -no signal	Wiring, TCM
72	84	180	Catalytic converter, bank 2 -efficiency below threshold	Wiring, exhaust leak, catalytic converter,H02S 2