| Model | Year | Engine identification | System |
|---|---|---|---|
| Dakota 2.5L | 1996-97 | EPE | JTEC |
| Dakota 3.9L | 1996-97 | EHC | JTEC |
| Dakota 5.2L | 1996-97 | ELF | JTEC |
| Ram Truck 3.9L | 1996-97 | EHC | JTEC |
| Ram Truck 5.2L | 1996-97 | ELF/ELN | JTEC |
| Ram Truck 5.9L | 1996-97 | EML/EMM | JTEC |
| Ram Truck 8.0L | 1996-97 | EWA | JTEC |
| Ram Van/Wagon 3.9L | 1996-97 | EHC | JTEC |
| Ram Van/Wagon 5.2L | 1996-97 | ELF/ELN | JTEC |
| Ram Van/Wagon 5.9L | 1996-97 | ELM | JTEC |
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 (DLC).
- Dakota 1997: Trouble codes can also be displayed by the digital odometer.
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].
- End of test sequence indicated by trouble code 55.
- Dakota 1997: Trouble codes can also be displayed by the digital odometer using the same key cycling procedure as above. After code 55 is displayed the odometer will return to its normal mode.
P codes & Hex codes
- Trouble codes can also be displayed by using a Scan Tool connected to the data link connector (DLC) [2]
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 | – |
| P1294 | Idle speed control (ISC) system rpm lower/ higher than expected | Wiring, air leak, throttle valve tight/sticking, lAC valve |
| P1296 | Manifold absolute pressure (MAP) sensor supplyvoltage | Wiring, MAP sensor, ECM |
| 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 detectionlimit reached | Wiring, poor connection, engine mechanical fault,ignition/fuel system, CKP sensor, ECM |
| P1486 | Evaporative emission (EVAP) system -blockage detected | Hose connection(s), hose blocked/trapped, EVAP canister |
| P1491 | Engine coolant blower motor relay | Wiring open circuit/short circuit, engine coolant blower motor relay -low/high speed |
| P1492 | Ambientlbattery temperature sensor -voltage high | Wiring, ambient/battery temperature sensor, ECM |
| P1493 | Ambientlbattery temperature sensor -voltage low | Wiring, ambient/battery temperature sensor, ECM |
| 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 |
| P1756 | Governor pressure not equal to target (15-20 PSI) -mid pressure malfunction | Signal wire open circuit/short circuit, valve body, sensor supply wire open circuit, transmission fluidlevel, governor pressure solenoid, transmission mechanical fault, ECM no 5 volt supply |
| P1757 | Governor pressure not equal to target -low pressure malfunction | Signal wire open circuit/short circuit, valve body,sensor supply wire open circuit, transmission fluid level, governor pressure solenoid, transmission mechanical fault, ECM -no 5 volt supply |
| P1762 | Governor pressure sensor -incorrect signal | Signal wire short circuit to ground/positive, supply wire open circuit/short circuit, transmission fluid level, governor pressure solenoid, governor pressure sensor, ECM |
| P1763 | Governor pressure sensor -signal high | Signal wire short circuit to positive, supply wire open circuit, transmission fluid level, governor pressure sensor, ECM |
| P1764 | Governor pressure sensor -signal low | Signal wire short circuit to ground, supply wire open circuit, transmission fluid level, governor pressure sensor, ECM |
| P1765 | Transmission system relay | Wiring open circuit/short circuit, transmission system relay, ECM |
| P1899 | Park/neutral position (PNP) switch -input circuit malfunction | Wiring, PNP switch, ECM |
| Flash code | Scancode Hextype | Fault location | Probable cause | |
| 11 | Crankshaft position (CKP) sensor/camshaftposition (CMP) sensor | Wiring, poor connection, air gap, CKP sensor, CMP sensor | ||
| 28 | Crankshaft position (CKP) sensor no signal | Wiring, air gap, CKP sensor | ||
| 90 | Crankshaft position (CKP) sensor/camshaftposition (CMP) sensor -intermittent signal | Wiring, poor conr:tection, air gap, CKP sensor, CMP sensor | ||
| BA | Engine control module (ECM) -misfiredetection limit reached | Wiring, poor connection, engine mechanical fault, ignition/fuel system, CKP sensor, ECM | ||
| 12 | Engine control module (ECM) -supply voltagedisconnected within last 50 ignition switch ON-OFF cycles | Wiring, battery | ||
| 13 | 27 | Manifold absolute pressure (MAP) sl;lnsor | Wiring, hose connection(s), MAP sensor | |
| 14 | Manifold absolute pressure (MAP) sensorinput low/high | Wiring, MAP sensor | ||
| 24 | Manifold absolute pressure (MAP) sensor low input | Wiring short circuit to ground, MAP sensor | ||
| 14 | 25 | Manifold absolute pressure (MAP) sensor highinput | Wiring short circuit to positive, MAP sensor | |
| 87 | Manifold absolute pressure (MAP) sensor supply voltage | Wiring, MAP sensor, ECM | ||
| 15 | Vehicle speed sensor (VSS) -signal | Wiring, VSS, ECM | ||
| 23 | Vehicle speed sensor (VSS) no signal | Wiring, VSS, ECM | ||
| A6 | Output shaft speed (OSS) sensor -circuit malfunction | Wiring, OSS sensor, ECM | ||
| 17 | Engine temperature -low for long period | Wiring, cooling system, coolant thermostat,ECT sensor | ||
| 21 | Engine temperature -low for long period | Wiring, cooling system, coolant thermostat, ECT sensor | ||
| 80 | Insufficient coolant temperature for closed loopfuel control | Wiring, cooling system, coolant thermostat, ECT sensor | ||
| 21 | Heated oxygen sensor (H02S) 1/2/3, bank 1/2circuit/signal malfunction | Wiring, fuel pressure, injector control, EVAP canister purge valve, compression, air filter blocked, catalytic converter, H02S | ||
| 3E | Heated oxygen sensor (H02S) 1, bank 1 high voltage | Wiring short circuit to positive, H02S | ||
| 42 | Heated oxygen sensor (H02S) 1, bank 2 high voltage | Wiring short to positive, H02S | ||
| 66 | Heated oxygen sensor (H02S) 1, bank 1 slow response | Heating inoperative, wiring, H02S | ||
| 67 | Heated oxygen sensor (H02S) 1, bank 1 heater control -circuit malfunction | Wiring, H02S | ||
| 68 | Heated oxygen sensor (H02S) 2, bank 1 slowresponse | Heating inoperative, wiring, H02S | ||
| 69 | Heated oxygen sensor (H02S) 2, bank 1,heater control -circuit malfunction | Wiring, H02S | ||
| 7A | Heated oxygen sensor (H02S) 1, bank 2 slow response | Heating inoperative, wiring, H02S | ||
| 7B | Heated oxygen sensor (H02S) 2, bank 2 slow response | Heating inoperative, wiring, H02S | ||
| 7C | Heated oxygen sensor (H02S) 1, bank 2,heater control -circuit malfunction | Wiring, H02S, ECM | ||
| 7D 7E | Heated oxygen sensor (H02S) 2, bank 2,heater control -circuit malfunction Heated oxygen sensor (H02S) 2, bank 1 high voltage | Wiring, H02S, ECM Wiring short circuit to positive, catalytic converter, H02S | ||
| 7F | Heated oxygen sensor (H02S) 2, bank 2 high voltage | Wiring short to positive, H02S, ECM | ||
| 90 | Heated oxygen sensor (H02S) 3, bank 1 lowvoltage | Exhaust leak, wiring short to ground, H02S, ECM | ||
| 21 | 93 | Heated oxygen sensor (H02S) 3, bank 1 – high voltage | Wiring short to positive, H02S, ECM | |
| 9B | Heated oxygen sensor (H02S) 1, bank 1 – low voltage | 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 | ||
| 9F | Heated oxygen sensor (H02S) 3, bank 1 – slow response | Heating inoperative, wiring, H02S | ||
| B5 | Heated oxygen sensor (H02S) 1, bank 2 – low voltage | Exhaust leak, wiring short to ground, H02S, ECM | ||
| B6 | Heated oxygen sensor (H02S) 2, bank 2 – low voltage | Exhaust leak, wiring short to ground, H02S, ECM | ||
| BD | Heated oxygen sensor (H02S) 3, bank 1, heater control 0- circuit malfuction | Wiring, H02S, ECM | ||
| CO | Heated oxygen sensor (H02S) 1, bank 1 – slow response | Heating inoperative, wiring, H02S | ||
| 22 | Engine coolant temperature (ECT) sensor – voltage low/high | Wiring, coolant thermostat, ECT sensor | ||
| 1E | Engine coolant temperature (ECT) sensor – low input | Coolant thermostat, wiring short circuit to ground, ECT sensor | ||
| 1F | Engine coolant temperature (ECT) sensor – hihg input | Coolant thermostat, wiring open circuit! Short circuit to positive, ground wire defective, ECT sensor | ||
| 23 | Intake air temperature (IAT) sensor- voltage low/high | Wiring, IAT sensor | ||
| 39 | Intake air temperature (IAT) sensor – low input | Wiring short circuit to ground, IAT sensor | ||
| 3A | Intake air temperature (lAT) sensor – high input | Wiring open circuit/short circuit to positive, ground wire defective, IAT sensor | ||
| 24 | Throttle position (TP) sensor – voltage low/high | Wiring, accelerator cable adjustment, TP sensor | ||
| 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 | ||
| 84 | Throttle position (TP) sensor – range/performance problem | Wiring, accelerator cable adjustment, TP sensor | ||
| 25 | Idle air control (lAC) valve | Wiring open circuit/short circuit, IAC valve | ||
| 19 | Idle speed control (ISC) system – malfunction | Wiring open circuit/short circuit, IAC valve | ||
| 8A | Idle speed control (ISC) system – rpm lower/higher than expected | Wiring, air leak, throttle valve tight! Sticking, IAC valve | ||
| 27 | Injector(s) -circuit malfunction | Wiring, injector | |
| 13 | Injector 3 -circuit malfunction | Wiring, injector | |
| 14 | Injector 2 -circuit malfunction | Wiring, injector | |
| 15 | Injector 1 -circuit malfunction | Wiring, injector | |
| 37 | Injector 9 -circuit malfunction | Wiring, injector | |
| 38 | Injector 10 circuit malfunction | Wiring, injector | |
| 3D | Injector 4 -circuit malfunction | Wiring, injector | |
| 45 | Injector 5 -circuit malfunction | Wiring, injector | |
| 46 | Injector 6 -circuit malfunction | Wiring, injector | |
| 4F | Injector 7 -circuit malfunction | Wiring, injector | |
| 50 | Injector 8 -circuit malfunction | Wiring, injector | |
| 31 | Evaporative emission (EVAP) canister purge valve/system | Wiring, EVAP canister, EVAP canister purge valve | |
| 12 | Evaporative emission (EVAP) canister purge valve -circuit malfunction | Wiring open circuit/short circuit, EVAP canister purge valve | |
| 71 | Evaporative emission (EVAP) system incorrect flow detected | Hose connection(s), intake leak, EVAP canister purge valve | |
| AO | Evaporative emission (EVAP) system -small leak detected | Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve | |
| A1 | Evaporative emission (EVAP) system large leak detected | Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve | |
| BB | Evaporative emission (EVAP) ~ystem -blockage detected | Hose connection(s), hose blocked/ trapped, EVAP canister | |
| B8 | Evaporative emission (EVAP) leak detection pump -pressure switch | Wiring, hose leak/blockage, EVAP leak detection pump | |
| B7 | Evaporative emission (EVAP) leak detection pump solenoid | Wiring open circuit/short circuit, hose leak/blockage, EVAP leak detection pump solenoid | |
| 32 | 11 | Exhaust gas recirculation (EGR) -circuit malfunction | Wiring, EGR solenoid, ECM |
| 33 | 10 | AlC compressor clutch relay | Wiring open circuit/short circuit, AlC compressor clutch relay |
| 34 | Cruise control | Wiring open circuit/short circuit, hoses, voltage low/high, cruise control master switch, cruise control vacuum switching valve | |
| OF | Cruise control | Wiring open circuit/short circuit, hoses, voltage low/high, cruise control vacuum switching valve | |
| 56 | Cruise control master switch -high voltage | Wiring, cruise control master switch | |
| 57 | Cruise control master switch -low voltage | Wiring, cruise control master switch | |
| 35 | OE | Engine coolant blower motor relay | Wiring open circuit/short circuit, engine coolant blower motor relay -low/high speed |
| 37 | Transmission control system -malfunction | Wiring, transmission fluid level, transmission mechanical fault, PNP switch, TCC solenoid, TFT sensor, TFP solenoid, shift solenoid, governor pressure solenoid, transmission system relay, ECM | |
| OC | Torque converter clutch (TeC) solenoid -electrical | Wiring open circuit/short circuit, TCC solenoid | |
| 32 | Shift solenoid (SS) 3-4 -electrical | Wiring, shift solenoid, ECM | |
| 4A | Transmission fluid temperature (TFT) sensor low input | Wiring short circuit to ground, TFT sensor, ECM | |
| 4B | Transmission fluid temperature (TFT) sensor high input | Wiring short circuit to positive, TFT sensor, ECM | |
| 72 | Park/neutral position (PNP) switch -input circuit malfunction | Wiring, PNP switch, ECM | |
| 80 | Governor pressure not equal to target (15-20PSI) -mid pressure malfunction | Signal wire open circuit/short circuit, valve body, sensor supply wire open circuit,transmission fluid level, governor pressure solenoid, transmission mechanical fault, ECM no 5 volt supply | |
| 8E | Governor pressure not equal to target -low pressure malfunction | Signal wire open circuit/short circuit, valve body, sensor supply wire open circuit, transmission fluid level, governor pressure solenoid, transmission mechanical fault, ECM no 5 volt supply | |
| 94 | Torque converter clutch (Tee) solenoid -circuit malfunction | Wiring, TCC solenoid | |
| A4 | Transmission fluid temperature (TFT) sensorrange/performance problem | Wiring, TFT sensor | |
| A5 | Gear selection, 3-4 -shift malfunction | Wiring, TR sensor, shift solenoids, transmission mechanical fault | |
| AB | Transmission fluid pressure (TFP) solenoid -electrical | Wiring, TFP solenoid, ECM | |
| AD | Transmission system relay | Wiring open circuit/short circuit, transmission system relay, ECM | |
| 41 | OB | Alternator, field control -circuit malfunction | Wiring open circuit/short circuit, alternator, battery |
| 42 | Fuel pump relay/engine control relay/fuel levelsensor -circuit malfunction | Wiring open circuit/short circuit, fuel pump relay, engine control relay, fuel level sensor | |
| OA | Engine control relay | Wiring open circuit/short circuit, engine control relay | |
| 42 | 2C | Engine control relay | Wiring open circuit, engine control relay |
| 65 | Fuel pump relay | Wiring open circuit/short circuit, fuel pump relay | |
| 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 | |
| 43 | Random/multiple cylinder(s) -misfire detected | Wiring, spark plug(s), HT lead(s), injector(s),ignition coil(s), low compression | |
| 29 | Ignition coil C, primary -circuit malfunction | Wiring, ignition coil, ECM | |
| 2A | Ignition coil B, primary -circuit malfunction | Wiring, ignition coil, ECM | |
| 2B | Ignition coil A, primary -circuit malfunction | Wiring, ignition coil, ECM | |
| 4C | Ignition coil D. primary -circuit malfunction | Wiring. ignition coil, ECM | |
| 40 | Ignition coil E. primary -circuit malfunction | Wiring, ignition coil, ECM | |
| 6A | Random/multiple cylinder(s) -misfire detected | Wiring, spark plug(s), HT lead(s), injector(s),ignition coil(s), low compression | |
| 6B | 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, ignitionl fuel system, injector | |
| 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 | |
| BO | Cylinder 7 -misfire detected | Wiring, engine mechanical fault, ignition! fuel system, injector | |
| B1 | Cylinder 8 -misfire detected | Wiring, engine mechanical fault, ignitionl fuel system, injector | |
| B2 | Cylinder 9 -misfire detected | Wiring, engine mechanical fault, ignition! fuel system, injector | |
| B3 | Cylinder 10 -misfire detected | Wiring, engine mechanical fault, ignition! fuel system, injector | |
| 44 | AmbienUbattery temperature sensor voltage low/high | Wiring, ambienUbattery temperature sensor,ECM | |
| 9A | AmbienUbattery temperature sensor voltage high | Wiring, ambient/battery temperature sensor, ECM | |
| 99 | AmbienUbattery temperature sensor voltage low | Wiring, ambient/battery temperature sensor, ECM |
| 45 | Transmission control system – malfunction | Wiring, transmission fluid level, transmission mechanical fault, PNP switch, TCC solenoid, TFT sensor, TFP solenoid, shift solenoid, overdrive solenoid/switch, governor pressure solenoid, transmission system relay, ECM | |
| 32 | Shift solenoid (SS) 3-4 – electrical | Wiring, shift solenoid, ECM | |
| 4A | Transmission fluid temperature (TFT) sensor – low input | Wiring short circuit to ground, TFT sensor, ECM | |
| 4B | Transmission fluid temperature (TFT) sensor – high input | Wiring short circuit to positive, TFT sensor, ECM | |
| 8D | Governor pressure not equal to target (15-20 PSI) – mid pressure malfunction | Signal wire open circuit/short circuit, valve body, sensor supply wire open circuit, transmission fluid level, governor pressure solenoid, transmission mechanical fault, ECM – no 5 volt supply | |
| 8E | Governor pressure not equal to target – low pressure malfunction | Signal wire open circuit/short circuit, valve body, sensor supply wire open circuit, transmission fluid level, governor pressure solenoid, transmission mechanical fault, ECM – no 5 volt supply | |
| A4 | Transmission fluid temperature (TFT) sensor – range/performance problem | Wiring, TFT sensor | |
| A5 | Gear selection, 3-4 – shift malfunction | Wiring, TR sensor, shift solenoids, transmission mechanical fault | |
| A7 | Governor pressure sensor – signal low | Signal wire short circuit to ground, supply wire open circuit, transmission fluid level, governor pressure sensor, ECM | |
| A8 | Govemor pressure sensor – signal high | Signal wire short circuit to positive, supply wire open circuit, transmission fluid level, governor pressure sensor, ECM | |
| A9 | Govemor pressure sensor – incorrect signal | Signal wire short circuit to ground/ positive, supply wire open circuit/short circuit, transmission fluid level, governor pressure solenoid, governor pressure sensor, ECM | |
| AB | Transmission fluid pressure (TFP) solenoid – electrical | Wiring, TFP solenoid, ECM | |
| AD | Transmission system relay | Wiring open circuit/short circuit, transmission system relay, ECM | |
| BC | Overdrive solenoid/switch – performance problem | Wiring, .overdrive solenoid/switch, transmission mechanical fault, ECM |
| 46 | 6 | Alternator -voltage high | Wiring, battery, alternator |
| 47 | 5 | Alternator -voltage low | Wiring, battery, alternator drive belt, alternator |
| 51 | System too lean, bank 1/2 | Wiring, intake/exhaust leak, MAP sensor, fuel pressure/pump, EVAP canister purge valve, injector(s), H02S | |
| 77 | System too lean, bank 1 | Intake/exhaust leak, MAP sensor, fuel pressure/pump, injector(s), H02S | |
| 79 | System too lean, bank 2 | Intake/exhaust leak, fuel pressure/pump, injector(s), hose connection(s) | |
| 52 | System too rich, bank 1/2 | Wiring, intake blocked, EVAP canister purge valve, fuel pressure, EGR system, injector(s), air filter blocked, ignition system, H02S | |
| 76 | System too rich, bank 1 | Intake blocked, EVAP canister purge valve, fuel pressure, EGR system, injector(s), H02S | |
| 78 | System too rich, bank 2 | Intake blocked, EVAP canister purge valve,fuel pressure, EGR system, injector(s), H02S | |
| 53 | Engine control module (ECM) -intemal fault | ECM | |
| 2 | Engine control module (ECM) -intemal fault | ECM | |
| 44 | Engine control module (ECM) -internal fault | ECM | |
| 54 | 1 | Camshaft position (CMP) sensor -no signal | Wiring, CMP sensor |
| 55 | End of malfunction indicator lamp (MIL) code output | – | |
| 63 | 31 | Engine control module (ECM) -EEPROM error | ECM |
| 64 | 70 | Catalytic converter system, bank 1 efficiencybelow threshold | Catalytic converter, wiring, H02S 2 |
| 65 | 73 | Power steering pressure (PSP) switchrange/performance problem | Wiring, PS system, PSP switch |
| 71 | 89 | Engine control module (ECM) -5 volt output low | ECM |
| 72 | Catalytic converter system, bank 1/2 efficiency below threshold | Catalytic converter, wiring, H02S 2 | |
| 70 | Catalytic converter system, bank 1 efficiency below threshold | Catalytic converter, wiring, H02S 2 | |
| 84 | Catalytic converter system, bank 2 efficiency below threshold | Catalytic converter, wiring, H02S 2 | |
| 77 | 52 | Cruise control | Wiring, cruise control vacuum switching valve |