2002 Chrysler Neon LX, AutomaticFACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Definitions

DTC MESSAGES & CODES (1)

Generic Scan Tool Code DRBIII(R) Scan Tool Message
P0071  AMBIENT TEMP SENSOR PERFORMANCE
P0106  BAROMETRIC PRESSURE OUT OF RANGE
P0107  MAP SENSOR VOLTAGE TOO LOW
P0108  MAP SENSOR VOLTAGE TOO HIGH
P0117  ECT SENSOR VOLTAGE TOO LOW
P0118  ECT SENSOR VOLTAGE TOO HIGH
P0120 (2) THROTTLE POSITION SENSOR SIGNAL CIRCUIT
P0121  TPS VOLTAGE DOES NOT AGREE WITH MAP
P0122  THROTTLE POSITION SENSOR VOLTAGE LOW
P0123  THROTTLE POSITION SENSOR VOLTAGE HIGH
P0131  1/1 O2 SENSOR 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  1/1 O2 SENSOR HEATER FAILURE
P0137  1/2 O2 SENSOR SHORTED TO GROUND
P0138  1/2 O2 SENSOR SHORTED TO VOLTAGE
P0139  1/2 O2 SENSOR SLOW RESPONSE
P0140  1/2 O2 SENSOR STAYS AT CENTER
P0141  1/2 O2 SENSOR HEATER FAILURE
P0171  1/1 FUEL SYSTEM LEAN
P0172  1/1 FUEL SYSTEM RICH
P0201  INJECTOR #1 CONTROL CIRCUIT
P0202  INJECTOR #2 CONTROL CIRCUIT
P0203  INJECTOR #3 CONTROL CIRCUIT
P0204  INJECTOR #4 CONTROL CIRCUIT
P0218 (2) HIGH TEMPERATURE OPERATION ACTIVATED
P0300  MULTIPLE CYLINDER MISFIRE
P0301  CYLINDER #1 MISFIRE
P0302  CYLINDER #2 MISFIRE
P0303  CYLINDER #3 MISFIRE
P0304  CYLINDER #4 MISFIRE
P0320  NO CRANK REFERENCE SIGNAL AT PCM
P0340  NO CAM SIGNAL AT PCM
P0351  IGNITION COIL #1 PRIMARY CIRCUIT
P0352  IGNITION COIL #2 PRIMARY CIRCUIT
P0420  1/1 CATALYTIC CONVERTER EFFICIENCY
P0441  EVAP PURGE FLOW MONITOR
P0442  EVAP LEAK MONITOR MEDIUM LEAK DETECTED
P0443  EVAP PURGE SOLENOID CIRCUIT
P0455  EVAP LEAK MONITOR LARGE LEAK DETECTED
P0456  EVAP LEAK MONITOR SMALL LEAK DETECTED
P0460  FUEL LEVEL UNIT NO CHANGE OVER MILES
P0462  FUEL LEVEL SENDING UNIT VOLTAGE TOO LOW
P0463  FUEL LEVEL SENDING UNIT VOLTAGE TOO HIGH
P0500  NO VEHICLE SPEED SENSOR SIGNAL (A/T)
P0500  NO VEHICLE SPEED SENSOR SIGNAL (M/T)
P0508  IAC MOTOR SENSE CIRCUIT LOW
P0509  IAC MOTOR SENSE CIRCUIT HIGH
P0513  INVALID SKIM KEY
P0562 (3) CHARGING SYSTEM VOLTAGE TOO LOW OR (2) LOW BATTERY VOLTAGE
P0563 (3) CHARGING SYSTEM VOLTAGE TOO HIGH
P0600  PCM FAILURE SPI COMMUNICATIONS
P0601  PCM INTERNAL CONTROLLER FAILURE
P0604 (2) INTERNAL TCM
P0605 (2) INTERNAL TCM
P0613 (2) INTERNAL TCM
P0622 (3) GENERATOR FIELD NOT SWITCHING PROPERLY
P0625 (3) GENERATOR FIELD CONTROL CIRCUIT LOW
P0626 (3) GENERATOR FIELD CONTROL CIRCUIT HIGH
P0645 (4) A/C CLUTCH RELAY CKT
P0646 (4) A/C CLUTCH RELAY CONTROL CIRCUIT LOW
P0647 (4) A/C CLUTCH RELAY CONTROL CIRCUIT HIGH
P0703  BRAKE SWITCH SENSE CIRCUIT
P0706 (2) CHECK SHIFTER SIGNAL
P0715 (2) INPUT SPEED SENSOR ERROR
P0720 (2) OUTPUT SPEED SENSOR ERROR
P0725 (2) ENGINE SPEED SENSOR CIRCUIT
P0731 (2) GEAR RATIO ERROR IN 1ST
P0732 (2) GEAR RATIO ERROR IN 2ND
P0733 (2) GEAR RATIO ERROR IN 3RD
P0734 (2) GEAR RATIO ERROR IN 4TH
P0736 (2) GEAR RATIO ERROR IN REVERSE
P0740 (2) TORQUE CONVERTER CLUTCH CONTROL CIRCUIT
P0750 (2) LR SOLENOID CIRCUIT
P0755 (2) 2-4 SOLENOID CIRCUIT
P0760 (2) OD SOLENOID CIRCUIT
P0765 (2) UD SOLENOID CIRCUIT
P0833  CLUTCH RELEASED SWITCH CIRCUIT
P0841 (2) LR PRESSURE SWITCH SENSE CIRCUIT
P0845 (2) 2-4 HYDRAULIC PRESSURE TEST FAILURE
P0846 (2) 2-4 PRESSURE SWITCH SENSE CIRCUIT
P0870 (2) OD HYDRAULIC PRESSURE TEST FAILURE
P0871 (2) OD PRESSURE SWITCH SENSE CIRCUIT
P0884 (2) POWER UP AT SPEED
P0888 (2) RELAY OUTPUT ALWAYS OFF
P0890 (2) SWITCHED BATTERY
P0891 (2) TRANSMISSION RELAY ALWAYS ON
P0897 (2) WORN OUT/BURNT TRANSAXLE FLUID
P0944 (2) LOSS OF PRIME
P0951 (2) AUTOSTICK SENSOR CIRCUIT
P0992 (2) 2-4/OD HYDRAULIC PRESSURE TEST FAILURE
P1192  INLET AIR TEMP SENSOR VOLTAGE LOW
P1193  INLET AIR TEMP SENSOR VOLTAGE HIGH
P1195  1/1 O2 SENSOR SLOW DURING CATALYST MONITOR
P1281  ENGINE IS COLD TOO LONG
P1282  FUEL PUMP RELAY CONTROL CIRCUIT
P1289  MANIFOLD TUNE VALVE CONTROL CIRCUIT
P1294  TARGET IDLE NOT REACHED
P1297  NO CHANGE IN MAP FROM START TO RUN
P1299  VACUUM LEAK FOUND (IAC FULLY SEATED)
P1388  AUTO SHUTDOWN RELAY CONTROL CIRCUIT
P1389  NO ASD RELAY OUTPUT VOLTAGE AT PCM
P1390  TIMING BELT SKIPPED 1 TOOTH OR MORE
P1391  INTERMITTENT LOSS OF CMP OR CKP
P1398  MISFIRE ADAPTIVE NUMERATOR AT LIMIT
P1486  EVAP LEAK MONITOR PINCHED HOSE FOUND
P1490  LOW SPEED FAN CONTROL RELAY CIRCUIT
P1494  LEAK DETECTION PUMP SW OR MECHANICAL FAULT
P1495  LEAK DETECTION PUMP SOLENOID CIRCUIT
P1496  5-VOLT SUPPLY OUTPUT TOO LOW
P1594 (3) CHARGING SYSTEM VOLTAGE TOO HIGH
P1595 (5) SPEED CONTROL SOLENOID CIRCUITS
P1597 (5) SPEED CONTROL SWITCH ALWAYS LOW
P1602  PCM NOT PROGRAMMED
P1652 (2) SERIAL COMMUNICATION LINK MALFUNCTION
P1653  PCI BUS SHORTED TO GROUND
P1654  PCI BUS SHORTED TO VOLTAGE
P1656  PCI BUS NOT AVAILABLE
P1682 (3) CHARGING SYSTEM VOLTAGE TOO LOW
P1683 (5) SPD CTRL PWR RELAY OR S/C 12V DRIVER CKT
P1684 (2) BATTERY WAS DISCONNECTED
P1685  WRONG OR INVALID KEY MSG RECEIVED FROM SKIM
P1686  NO SKIM BUS MESSAGE RECEIVED
P1687  NO CLUSTER BUS MESSAGE
P1694 (2) BUS COMMUNICATION WITH ENGINE MODULE
P1696  PCM FAILURE EEPROM WRITE DENIED
P1697  PCM FAILURE SRI MILE NOT STORED
P1698  NO BUS MESSAGE FROM TRANS CONTROL MODULE
P1775 (2) SOLENOID SWITCH VALVE LATCHED IN TCC POSITION
P1776 (2) SOLENOID SWITCH VALVE LATCHED IN LR POSITION
P1790 (2) FAULT IMMEDIATELY AFTER SHIFT
P1793 (2) TRD LINK COMMUNICATION ERROR
P1794 (2) SPEED SENSOR GROUND ERROR
P1797 (2) MANUAL SHIFT OVERHEAT
P1799 (2) CALCULATED OIL TEMP IN USE
P1899  P/N SWITCH STUCK IN PARK OR IN GEAR
(1) Perform appropriate test under DIAGNOSTIC TESTS. 
(2) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(3) See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(4) See appropriate A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(5) See appropriate CRUISE CONTROL SYSTEMS article in ACCESSORIES & EQUIPMENT.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.