Dodge Caravan 2.4/3.0/3.3/3.8L (1998) Trouble Code Info

Model Year Engine identification System
Caravan 2.4L 1998 EDZ SBEC III
Caravan 3.0L 1998 EFA SBEC III
Caravan 3.3L 1998 EGA/EGM SBEC III
Caravan 3.8L 1998 EGH SBEC III

General information

  • Refer to the front of this manual for general test conditions, terminology, detailed descriptions of wiring faults and a general trouble shooter for electrical and mechanical faults.
  • 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.
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Accessing

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

Erasing

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

Trouble code  identification

Scan code Ptype Fault location Probable cause
PO,P2,UO Refer to OBO-II trouble code tables
P1290 Compressed natural gas pressure sensor pressure high Compressed natural gas system, wiring, compressed natural gas pressure sensor
P1294 Idle speed control (ISC) system -rpm lower/ higher than expected Wiring, air leak, throttle valve tight/sticking, lAC valve
P1297 Manifold absolute pressure (MAP) sensor Wiring, hose connection(s), MAP sensor
P1391 Crankshaft pOSition (CKP) sensor/camshaft position (CMP) sensor -intermittent signal Wiring, poor connection, air gap, CKP sensor, CMP sensor
P1398 Engine control module (ECM) -misfire detection limit reached Wiring, poor connection, CKP sensor
P1486 Evaporative emission (EVAP) system -blockage detected Hose connection(s), hose blocked/trapped, EVAP canister
P1491 Engine coolant blower motor relay -low/high speed Wiring open circuit/short circuit, engine coolant blower motor relay -low/high 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 leak/blockage, EVAP leak detection pump
P1495 Evaporative emission (EVAP) leak detection pump solenoid Wiring open circuit/short circuit, hose leak/ blockage, EVAP leak detection pump solenoid
P1496 Engine control module (ECM) -5 volt output low ECM
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
 
Scan code Hex type Fault location  Probable cause
1 Camshaft position (CMP) sensor -no signal Wiring, CMP sensor
2 Engine control module (ECM) -internal fault ECM
5 Alternator -voltage low Wiring, battery, alternator drive belt, alternator
6 Alternator -voltage high Wiring, battery, alternator
0A Engine control relay Wiring open circuit/short circuit, engine control relay
8 Altemator, field control -circuit malfunction Wiring open circuit/short circuit, alternator, battery
0C Torque converter clutch (TCC) solenoid electrical Wiring open circuit/short circuit, TCC solenoid
0E Engine coolant blower motor relay”‘: low/high speed Wiring open circuit/short circuit, engine coolant blower motor relay -low/high speed
0F Cruise control Wiring open circuit/short circuit, hoses, voltage low/high, cruise control master switch, cruise control vacuum switching valve
10 A/C compressor clutch relay Wiring open circuit/short circuit, A/C compressorclutch relay
11 Exhaust gas recirculation (EGR) -circuitmalfunction Wiring open circuit/short circuit, EGR solenoid
12 Evaporative emission (EVAP) canister purge valve -circuit malfunction Wiring open circuit/short circuit, EVAP canister purge valve
13 Injector 3 -circuit malfunction Wiring, injector
14 Injector 2 -circuit malfunction Wiring, injector
15 Injector 1 -circuit malfu,nction Wiring, injector
19 Idle speed control (ISC) system -malfunction Wiring open circuit/short circuit, lAC valve
1A Throttle position (TP) sensor -low input Wiring short circuit to ground, TP sensor
1B Throttle position (TP) sensor -high input Wiring short circuit to positive, TP sensor
1E Engine coolant temperature (ECT) sensor low input Coolant thermostat, wiring short circuit to ground,ECT sensor
1F Engine coolant temperature (ECT) sensor high input Coolant thermostat, wiring open circuit/ short circuit to positive, ground wire defective, ECT sensor
20 Heated oxygen sensor (H02S) 1, bank 1 noactivity detected Wiring open circuit, heating inoperative, H02S
21 Engine temperature -low for long period Wiring, cooling system, coolant thermostat, ECTsensor
23 Vehicle speed sensor (VSS) -signal Wiring, VSS
24 Manifold absolute pressure (MAP) sensor low input Wiring short circuit to ground, MAP sensor
25 Manifold absolute pressure (MAP) sensor high input Wiring short circuit to positive, MAP sensor
27 Manifold absolute pressure (MAP) sensor Wiring, hose connection(s), MAP sensor
28 Crankshaft position (CKP) sensor no signal Wiring, air gap, CKP sensor
29 Ignition coil C, primary/secondary -circuit malfunction Wiring, ignition coil
2A Ignition coil B, primary/secondary -circuitmalfunction Wiring, ignition coil
2B Ignition coil A, primary/secondary -circuit malfunction Wiring, ignition coil
2C Engine control relay Wiring open circuit, engine control relay
2E Exhaust gas recirculation (EGR) system -insufficient flow detected Hose leak/blockage, wiring, EGR valve, EGR solenoid
30 Engine control module (ECM) -EEPROM error ECM
31 Engine control module (ECM) -EEPROM error ECM
39 Intake air temperature (IAT) sensor -low input Wiring short circuit to ground, IAT sensor
3A Intake air temperature (IAT) sensor -high input Wiring open circuit/short circuit to positive, ground wire defective, IAT sensor
3C Manifold absolute pressure (MAP) sensorbarometric pressure range/ performance problem Intake/exhaust leak, wiring, MAP sensor
3D Injector 4 -circuit malfunction Wiring, injector
3E 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
44 Engine control module (ECM) -internal fault ECM
45 Injector 5 -circuit malfunction Wiring, injector
46 Injector 6 -circuit malfunction Wiring, injector
52 Cruise control Wiring, cruise control vacuum switching valve
5A A/C refrigerant pressure sensor -high input A/C refrigerant pressure too high (cooling fault/incorrectly charged), wiring, A/C refrigerant pressure sensor
58 A/C refrigerant pressure sensor -low input A/C refrigerant pressure too low (incorrectly charged), wiring, A/C refrigerant pressure sensor
60 CAN data bus, TCM -no signal Wiring, TCM
61 CAN data bus, body control module (SCM) no signal Wiring,8CM
65 Fuel pump relay Wiring open circuit/short circuit, fuel pump relay
66 Heated oxygen sensor (H02S) 1, bank 1 slow response Wiring, heating inoperative, H02S
67 Heated oxygen sensor (H02S) 1, bank 1 heater control -circuit malfunction Wiring, H02S
69 Heated oxygen sensor (H02S) 2, bank 1, heater control -circuit malfunction Wiring, H02S
6A Random/multiple cylinder(s) -misfire detected Wiring, spark plug(s), HT lead(s), injector(s), ignition coil(s), low compression
68 Cylinder 1 -misfire detected Wiring, engine mechanical fault, ignition/fuel system, injector
6C Cylinder 2 -misfire detected Wiring, engine mechanical fault, ignition/fuel system, injector
60 Cylinder 3 -misfire detected Wiring, engine mechanical fault, ignition/fuel system, injector
6E Cylinder 4 -misfire detected Wiring, engine mechanical fault, ignition/fuel system, injector
70 Catalytic converter system, bank 1 -efficiencybelow threshold Catalytic converter, wiring, H02S 2
71 Evaporative emission (EVAP) system incorrectflow detected Hose connection(s), intake leak, EVAP canisterpurge valve
72 Park/neutral position (PNP) switch -input circuit malfunction Wiring, PNP switch, ECMITCM
76 System too rich Wiring, intake blocked, EVAP canister purge valve, fuel pressure, EGR system, injector(s), air filter blocked, ignition system, H02S
77 System too lean Wiring, intake/exhaust leak, MAP sensor, fuel pressure/pump, EVAP canister purge valve, injector(s), H02S
7E Heated oxygen sensor (H02S) 2, bank 1 high voltage Wiring short circuit to positive, catalytic converter,H02S
80 Insufficient coolant temperature for closed loop fuel control Wiring, cooling system, coolant thermostat, ECTsensor
81 Heated oxygen sensor (H02S) 2, bank 1 noactivity detected Wiring, heating inoperative, H02S
84 Throttle position (TP) sensor -range! performanceproblem Wiring, accelerator cable adjustment, TP sensor
89 Transmission control system -malfunction Wiring, ECMITCM
8A Idle speed control (ISC) system rpm lower! higherthan expected Wiring, air leak, throttle valve tight/sticking, lAC valve
92 Engine control module (ECM) -5 volt output low ECM
94 Torque converter clutch (TCC) solenoid -circuitmalfunction Wiring, TCC solenoid
95 Fuel level sensor -low input Wiring open circuit, fuel level sensor
96 Fuel level sensor -high input Wiring short circuit to positive, fuel level sensor
97 Fuel level sensor -malfunction Wiring, fuel level sensor
98 Brake pedal position (BPP) switch -circuit malfunction Wiring, 8PP switch
99 Ambient/battery temperature sensor -voltage low Wiring, ambient/battery temperature sensor
9A Ambient/battery temperature sensor -voltage high Wiring, ambient/battery temperature sensor
98 Heated oxygen sensor (H02S) 1, bank 1 -lowvoltage Exhaust leak, wiring short circuit to ground, H02S
9C Heated oxygen sensor (H02S) 2, bank 1 -low voltage Exhaust leak, wiring short circuit to ground, H02S
90 Crankshaft position (CKP) sensor/camshaftposition (CMP) sensor -intermittent signal Wiring, poor connection, air gap, CKP sensor, CMP sensor
AO Evaporative emission (EVAP) system -small leakdetected Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve
A1 Evaporative emission (EVAP) system -large leakdetected Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve
AE Cylinder 5 -misfire detected Wiring, engine mechanical fault, ignition/fuel system, injector
AF Cylinder 6 -misfire detected Wiring, engine mechanical fault, ignition/fuel system, injector
B7 Evaporative emission (EVAP) leak detection pump solenoid Wiring open circuit/short circuit, hose leak/ blockage, EVAP leak detection pump solenoid
B8 Evaporative emission (EVAP) leak detection pump -pressure switch Wiring, hose leak/blockage, EVAP leak detection pump
BA Engine control module (ECM) -misfire detectionlimit reached Wiring, poor connection, CKP sensor
BB Evaporative emission (EVAP) system blockage detected Hose connection(s), hose blocked/trapped, EVAP canister
BE Compressed natural gas pressure sensorpressure high Compressed natural gas system, wiring, compressed natural gas pressure sensor
CO Heated oxygen sensor (H02S) 1, bank 1 slow response Wiring, heating inoperative, H02S