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Home › Dodge and Ram › 1999 › Caravan Base, 3.3 G › Repair and Diagnosis › Engine Performance › System › Engine Controls - Tests W/Codes › Self-Diagnostic System › Retrieving Diagnostic Trouble Codes

Retrieving Diagnostic Trouble Codes

NOTE: Ensure battery is fully charged before retrieving diagnostic trouble codes.
  1. Turn ignition off. Connect scan tool to Data Link Connector (DLC). DLC is located below driver's side of instrument panel. See Fig 1.
    Fig 1: Locating Data Link Connector (DLC)
    G95J35070Courtesy of CHRYSLER CORP.
  2. Turn ignition on. Using scan tool manufacturer's instructions, read and record DTC message (DRB scan tool) or DTC code (generic scan tool) and freeze frame data. On any scan tool, if scan tool displays NO RESPONSE, perform TEST NS-1: NO RESPONSE CONDITION  under SELF-DIAGNOSTIC TESTS. If scan tool will not power up, check for loose cable connections or bad cable. If cable connections and cable are okay, use voltmeter and check voltage at cavity No. 16 (Pink wire) on DLC. Voltage should be at least 11 volts. If voltage is not as specified, check wiring circuit and necessary fuses. See appropriate wiring diagram in WIRING DIAGRAMS article.
  3. Note DTC messages and codes. See DTC MESSAGES & CODES  table.
  4. If scan tool displays an error message, (i.e., USER-REQUESTED COLD BOOT or USER-REQUESTED WARM BOOT), follow scan tool manufacturer's instructions. If scan tool displays a BUS failure, this indicates either a scan tool failure or BUS failure. To diagnose and correct BUS failures, see appropriate VEHICLE COMMUNICATIONS article in ACCESSORIES & EQUIPMENT.
  5. Perform appropriate test for displayed DTCs. See appropriate DTC test listed under SELF-DIAGNOSTIC TESTS . Once all repairs are made, ensure DTCs are cleared from PCM. See CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM.
  6. If no DTCs are displayed, refer to one of the following:
    • For driveability problems, perform TEST NTC-1: NO TROUBLE CODE TEST MENU  under SELF-DIAGNOSTIC TESTS.
    • For no-start problems, perform TEST NS-SEL: NO START TEST SELECTION  under SELF-DIAGNOSTIC TESTS.
    • For speed control problems and additional servicing information, see appropriate CRUISE CONTROL SYSTEMS article in ACCESSORIES & EQUIPMENT.
    • For charging system problems and additional servicing information, see appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
    NOTE: If MIL remains on steady and no DTCs exist, proceed to IMPROPER MALFUNCTION INDICATOR LIGHT (MIL) OPERATION TEST  under SELF-DIAGNOSTIC TESTS for diagnosis of MIL and wiring circuit.
DTC MESSAGES & CODES

Generic Scan Tool Code DRB-III Scan Tool Message
P0106  BAROMETRIC PRESSURE OUT OF RANGE
P0107  MAP SENSOR VOLTAGE TOO LOW
P0108  MAP SENSOR VOLTAGE TOO HIGH
P0112 (1) INTAKE AIR TEMP. SENSOR VOLTAGE LOW
P0113 (1) INTAKE AIR TEMP. SENSOR VOLTAGE HIGH
P0117  ECT SENSOR VOLTAGE TOO LOW
P0118  ECT SENSOR VOLTAGE TOO HIGH
P0121  THROTTLE POSITION SENSOR VOLTAGE DOES NOT AGREE WITH MAP
P0122  THROTTLE POSITION SENSOR VOLTAGE LOW
P0123  THROTTLE POSITION SENSOR VOLTAGE HIGH
P0125  CLOSED LOOP TEMP. NOT REACHED
P0131  1/1 O2 SENSOR VOLTAGE SHORTED TO GROUND
P0132  1/1 O2 SENSOR SHORTED TO VOLTAGE
P0133  1/1 O2 SENSOR SLOW RESPONSE
P0134  1/1 O2 SENSOR STAYS AT CENTER
P0135  O2 SENSOR HEATER FAILURE
P0171  1/1 FUEL SYSTEM LEAN
P0172  1/1 FUEL SYSTEM RICH
P0201 (2.4L)  INJECTOR #1 CONTROL CIRCUIT
P0201 (3.0L)  INJECTOR #1 CONTROL CIRCUIT
P0201 (3.3L & 3.8L)  INJECTOR #1 CONTROL CIRCUIT
P0202 (2.4L & 3.0L)  INJECTOR #2 CONTROL CIRCUIT
P0202 (3.3L & 3.8L)  INJECTOR #2 CONTROL CIRCUIT
P0203 (2.4L)  INJECTOR #3 CONTROL CIRCUIT
P0203 (3.0L)  INJECTOR #3 CONTROL CIRCUIT
P0203 (3.3L & 3.8L)  INJECTOR #3 CONTROL CIRCUIT
P0204 (2.4L & 3.0L)  INJECTOR #4 CONTROL CIRCUIT
P0204 (3.3L & 3.8L)  INJECTOR #4 CONTROL CIRCUIT
P0205 (3.0L)  INJECTOR #5 CONTROL CIRCUIT
P0205 (3.3L & 3.8L)  INJECTOR #5 CONTROL CIRCUIT
P0206 (3.0L)  INJECTOR #6 CONTROL CIRCUIT
P0206 (3.3L & 3.8L)  INJECTOR #6 CONTROL CIRCUIT
P0300  MULTIPLE CYLINDER MISFIRE
P0301  CYLINDER #1 MISFIRE
P0302  CYLINDER #2 MISFIRE
P0303  CYLINDER #3 MISFIRE
P0304  CYLINDER #4 MISFIRE
P0305 (3.0L, 3.3L & 3.8L)  CYLINDER #5 MISFIRE
P0306 (3.0L, 3.3L & 3.8L)  CYLINDER #6 MISFIRE
P0340 (2.4L)  NO CAM SIGNAL AT PCM
P0340 (3.0L)  NO CAM SIGNAL AT PCM
P0340 (3.3L & 3.8L)  NO CAM SIGNAL AT PCM
P0340 (2.4L)  NO CRANK REFERENCE SIGNAL AT PCM
P0340 (3.0L, 3.3L & 3.8L)  NO CRANK REFERENCE SIGNAL AT PCM
P0351  IGNITION COIL # 1 PRIMARY CIRCUIT
P0352 (2) IGNITION COIL # 2 PRIMARY CIRCUIT
P0353 (3) IGNITION COIL # 3 PRIMARY CIRCUIT
P0401  EGR SYSTEM FAILURE
P0403  EGR SOLENOID CIRCUIT
P0420  1/1 CATALYTIC CONVERTER EFFICIENCY
P0441  EVAP PURGE FLOW MONITOR FAILURE
P0442  EVAP LEAK MONITOR SMALL LEAK DETECTED
P0443 (2.4L, 3.3L & 3.8L)  EVAP PURGE SOLENOID CIRCUIT
P0443 (3.0L)  EVAP PURGE SOLENOID CIRCUIT
P0455  EVAP LEAK MONITOR LARGE LEAK DETECTED
P0460  FUEL LEVEL SENDING UNIT NO CHANGE OVER MILES
P0462  FUEL LEVEL SENDING UNIT VOLTS TOO LOW
P0463  FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
P0500 (3-SPEED A/T)  NO VEHICLE SPEED SENSOR SIGNAL
P0500 (4-SPEED A/T)  NO VEHICLE SPEED SENSOR SIGNAL
P0505  IDLE AIR CONTROL MOTOR CIRCUITS
P0600  PCM FAILURE SPI COMMUNICATIONS
P0601  INTERNAL CONTROLLER FAILURE
P0622  GENERATOR FIELD NOT SWITCHING PROPERLY
P0645  A/C CLUTCH RELAY CIRCUIT
P0703  BRAKE SWITCH STUCK PRESSED OR RELEASED
P0740  TORQUE CONVERTER CLUTCH, NO RPM DROP AT LOCKUP
P0743  TORQUE CONVERTER CLUTCH SOLENIOD CIRCUIT
P1195  SLOW 1/1 O2 SENSOR DURING CATALYST MONITOR
P1281  ENGINE IS COLD TOO LONG
P1294  TARGET IDLE NOT REACHED
P1297  NO CHANGE IN MAP FROM START TO RUN
P1388  AUTO SHUTDOWN RELAY CONTROL CIRCUIT
P1389  NO ASD RELAY OUTPUT VOLTAGE AT PCM
P1391 (2.4L)  INTERMITTENT LOSS OF CMP OR CKP
P1391 (3.0L)  INTERMITTENT LOSS OF CMP OR CKP
P1391 (3.3L & 3.8L)  INTERMITTENT LOSS OF CMP OR CKP
P1398 (2.4L)  MISFIRE ADAPTIVE NUMERATOR AT LIMIT
P1398 (3.0L, 3.3L & 3.8L)  MISFIRE ADAPTIVE NUMERATOR AT LIMIT
P1486  EVAP LEAK MONITOR PINCHED HOSE FOUND
P1491  RADIATOR FAN CONTROL RELAY CIRCUIT
P1492  BATTERY TEMP. SENSOR VOLTAGE TOO HIGH
P1493  BATTERY TEMP. SENSOR VOLTAGE TOO LOW
P1494 (2) LEAK DETECTION PUMP PRESSURE SWITCH
P1495 (2) LEAK DETECTION PUMP SOLENOID CIRCUIT
P1496  5-VOLT SUPPLY OUTPUT TOO LOW
P1594  CHARGING SYSTEM VOLTAGE TOO HIGH
P1595  SPEED CONTROL SOLENOID CIRCUITS
P1598  A/C PRESSURE SENSOR VOLTS TOO HIGH
P1599  A/C PRESSURE SENSOR VOLTS TOO LOW
P1682  CHARGING SYSTEM VOLTAGE TOO LOW
P1683  SPEED CONTROL POWER RELAY OR S/C 12V DRIVER
P1695  NO CCD MESSAGE FROM BODY CONTROLLER
P1696  PCM FAILURE EEPROM WRITE DENIED
P1697  PCM FAILURE SRI MILE NOT STORED
P1698  NO CCD MESSAGES FROM TCM
P1899 (3-SPEED A/T)  PARK/NEUTRAL SWITCH STUCK IN PARK OR IN GEAR
P1899 (4-SPEED A/T)  PARK/NEUTRAL SWITCH STUCK IN PARK OR IN GEAR
(1) Applies only to 2.4L.
(2) Applies only to 2.4L, 3.3L and 3.8L.
(3) Applies only to 3.3L and 3.8L.
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