1996 Jeep Cherokee Classic, Part Time, AutomaticFACTORY OEM SERVICE PROCEDURE

Engine Performance DTCS

ENGINE PERFORMANCE DTCS (2.5L)

DTC OEM Code Description
N/A 11 NO CRANK REFERENCE SIGNAL AT PCM
N/A 17 ENGINE IS COLD TOO LONG
N/A 33 A/C CLUTCH RELAY CIRCUIT
N/A 34 SPEED CONTROL SWITCH ALWAYS LOW
N/A 34 SPEED CONTROL SOLENOID CIRCUITS
N/A 41 GENERATOR FIELD NOT SWITCHING PROPERLY
N/A 42 NO ASD RELAY OUTPUT VOLTAGE AT PCM
N/A 42 FUEL LEVEL SENDING UNIT NO CHANGE OVER MILES
N/A 42 FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
N/A 42 FUEL LEVEL SENDING UNIT VOLTS TOO LOW
N/A 42 AUTO SHUTDOWN RELAY CONTROL CIRCUIT
N/A 42 FUEL PUMP RELAY CONTROL CIRCUIT
N/A 45 O/D SWITCH LOW RATIONALITY
N/A 46 CHARGING SYSTEM VOLTAGE TOO HIGH
N/A 47 CHARGING SYSTEM VOLTAGE TOO LOW
N/A 77 SPEED CONTROL POWER RELAY CIRCUIT
P0107 14 MAP SENSOR VOLTAGE TOO LOW (2)
P0108 14 MAP SENSOR VOLTAGE TOO HIGH (2)
P0112 23 INTAKE AIR TEMP SENSOR VOLTAGE LOW
P0113 23 INTAKE AIR TEMP SENSOR VOLTAGE HIGH
P0117 22 ECT SENSOR VOLTAGE TOO LOW
P0118 22 ECT SENSOR VOLTAGE TOO HIGH
P0121 24 TPS VOLTAGE DOES NOT AGREE WITH MAP
P0122 24 THROTTLE POSITION SENSOR VOLTAGE LOW (2)
P0123 24 THROTTLE POSITION SENSOR VOLTAGE HIGH (2)
P0125 17 CLOSED LOOP TEMP NOT REACHED
P0131 21 UPSTREAM O2S VOLTAGE SHORTED TO GROUND
P0132 21 UPSTREAM O2 SENSOR SHORTED TO VOLTAGE
P0133 21 UPSTREAM O2 SENSOR SLOW RESPONSE
P0135 21 UPSTREAM O2 SENSOR HEATER FAILURE
P0137 21 PRE-CAT/DOWNSTREAM O2S VOLTS SHORTED TO GND
P0139 21 PRE-CAT/DOWNSTREAM O2S SHORTED TO VOLTAGE
P0141 21 PRE-CAT/DOWNSTREAM O2S HEATER FAILURE
P0144 21 POST-CATALYST O2 SENOR SHORTED TO VOLTAGE
P0147 21 POST-CATALYST O2 SENSOR HEATER FAILURE
P0151 21 RIGHT BANK UPSTRM O2S SHORTED TO GROUND
P0152 21 RIGHT O2S SENSOR SHORTED TO VOLTAGE
P0153 21 RIGHT UPSTREAM O2 SENSOR SLOW RESPONSE
P0155 21 RIGHT UPSTREAM O2 SENSOR HEATER FAILURE
P0171 51 FUEL SYSTEM LEAN
P0172 52 FUEL SYSTEM RICH
P0174 51 RIGHT BANK FUEL SYSTEM LEAN
P0175 52 RIGHT BANK FUEL SYSTEM RICH
P0201 27 INJECTOR #1 CONTROL CIRCUIT
P0202 27 INJECTOR #2 CONTROL CIRCUIT
P0203 27 INJECTOR #3 CONTROL CIRCUIT
P0204 27 INJECTOR #4 CONTROL CIRCUIT
P0300 43 MULTIPLE CYLINDER MISFIRE
P0301 43 CYLINDER #1 MISFIRE
P0302 43 CYLINDER #2 MISFIRE
P0303 43 CYLINDER #3 MISFIRE
P0304 43 CYLINDER #4 MISFIRE
P0340 54 NO CAM SIGNAL AT PCM
P0401 32 EGR SYSTEM FAILURE
P0403 32 EGR SOLENOID CIRCUIT
P0420 (1) CATALYTIC CONVERTER EFFICIENCY FAILURE
P0441 31 EVAP PURGE FLOW MONITOR FAILURE
P0442 31 EVAP LEAK MONITOR (SMALL LEAK DETECTED)
P0443 31 EVAP PURGE SOLENOID CIRCUIT
P0455 31 EVAP LEAK MONITOR (LARGE LEAK DETECTED)
P0500 15 NO VEHICLE SPEED SENSOR SIGNAL
P0505 25 IDLE AIR CONTROL MOTOR CIRCUITS
P0551 65 POWER STEERING SWITCH FAILURE
P0600 53 PCM FAILURE SPI COMMUNICATIONS
P0601 53 INTERNAL CONTROLLER FAILURE
P0711 37 TRANS TEMP SENSOR, NO TEMP RISE AFTER START
P0712 37 TRANS TEMP SENSOR VOLTAGE TOO LOW
P0713 37 TRANS TEMP SENSOR VOLTAGE TOO HIGH
P0720 15 LOW OUTPUT SPD SENSOR RPM, ABOVE 15 MPH
P0740 37 TORQ CONV CLU, NO RPM DROP AT LOCKUP
P0743 37 TORQUE CONVERTER CLUTCH SOLENOID/TRANS RELAY CIRCUIT
P0748 45 GOVERNOR PRESSURE SOLENOID/TRANS RELAY CKTS
P0783 45 3-4 SHIFT SOL, NO RPM DROP @ 3-4 SHIFT
P1294 25 TARGET IDLE NOT REACHED
P1296 14 NO 5 VOLTS TO MAP SENSOR
P1297 13 NO CHANGE IN MAP FROM START TO RUN
P1391 11 INTERMITTENT LOSS OF CMP OR CKP
P1398 11 MISFIRE ADAPTIVE NUMERATOR AT LIMIT
P1486 31 EVAP LEAK MONITOR (PINCHED HOSE FOUND)
P1491 35 RAD FAN CONTROL RELAY CIRCUIT
P1492 44 BATTERY TEMP SENSOR VOLTAGE TOO HIGH
P1493 44 BATTERY TEMP SENSOR VOLTAGE TOO LOW
P1494 31 LEAK DETECT PUMP SW OR MECHANICAL FAULT
P1495 31 LEAK DETECTION PUMP SOLENOID CIRCUIT
P1498 71 AUXILIARY 5 VOLT SUPPLY OUTPUT TOO LOW
P1697 62 PCM FAILURE SRI MILE NOT STORED
P1698 63 PCM FAILURE EEPROM WRITE DENIED
P1756 45 GOV PRES NOT EQUAL TO TARGET @ 15-20 PSI
P1757 45 GOV PRES ABOVE 3 PSI IN GEAR WITH 0 MPH
P1762 45 GOV PRES SEN OFFSET VOLTS TOO LOW OR HIGH
P1763 45 GOVERNOR PRESSURE SENSOR VOLTS TOO HI
P1764 45 GOVERNOR PRESSURE SENSOR VOLTS TOO LOW
P1765 45 TRANS 12 VOLT SUPPLY RELAY CNTRL CIRCUIT
P1899 37 P/N SWITCH STUCK IN PARK OR IN GEAR
(1) MIL Code 64 or 72.
(2) This DTC can be set by low fuel level. Ensure fuel tank is at least 1/4 full and retest for DTC.
ENGINE PERFORMANCE DTCS (4.0L)

DTC OEM Code Description
N/A 11 NO CRANK REFERENCE SIGNAL AT PCM
N/A 17 ENGINE IS COLD TOO LONG
N/A 33 A/C CLUTCH RELAY CIRCUIT
N/A 34 SPEED CONTROL SWITCH ALWAYS LOW
N/A 34 SPEED CONTROL SOLENOID CIRCUITS
N/A 41 GENERATOR FIELD NOT SWITCHING PROPERLY
N/A 42 NO ASD RELAY OUTPUT VOLTAGE AT PCM
N/A 42 FUEL LEVEL SENDING UNIT NO CHANGE OVER MILES
N/A 42 FUEL LEVEL SENDING UNIT VOLTS TOO HIGH
N/A 42 FUEL LEVEL SENDING UNIT VOLTS TOO LOW
N/A 42 AUTO SHUTDOWN RELAY CONTROL CIRCUIT
N/A 42 FUEL PUMP RELAY CONTROL CIRCUIT
N/A 45 O/D SWITCH LOW RATIONALITY
N/A 46 CHARGING SYSTEM VOLTAGE TOO HIGH
N/A 47 CHARGING SYSTEM VOLTAGE TOO LOW
N/A 77 SPEED CONTROL POWER RELAY CIRCUIT
P0107 14 MAP SENSOR VOLTAGE TOO LOW (3)
P0108 14 MAP SENSOR VOLTAGE TOO HIGH (3)
P0112 23 INTAKE AIR TEMP SENSOR VOLTAGE LOW
P0113 23 INTAKE AIR TEMP SENSOR VOLTAGE HIGH
P0117 22 ECT SENSOR VOLTAGE TOO LOW
P0118 22 ECT SENSOR VOLTAGE TOO HIGH
P0121 24 TPS VOLTAGE DOES NOT AGREE WITH MAP
P0122 24 THROTTLE POSITION SENSOR VOLTAGE LOW (3)
P0123 24 THROTTLE POSITION SENSOR VOLTAGE HIGH (3)
P0125 17 CLOSED LOOP TEMP NOT REACHED
P0131 21 UPSTREAM O2S VOLTAGE SHORTED TO GROUND
P0132 21 UPSTREAM O2 SENSOR SHORTED TO VOLTAGE
P0133 21 UPSTREAM O2 SENSOR SLOW RESPONSE
P0135 21 UPSTREAM O2 SENSOR HEATER FAILURE
P0137 21 PRE-CAT/DOWNSTREAM O2S VOLTS SHORTED TO GND
P0139 21 PRE-CAT/DOWNSTREAM O2S SHORTED TO VOLTAGE
P0141 21 PRE-CAT/DOWNSTREAM O2S HEATER FAILURE
P0144 21 POST-CATALYST O2 SENOR SHORTED TO VOLTAGE
P0147 21 POST-CATALYST O2 SENSOR HEATER FAILURE
P0151 21 RIGHT BANK UPSTRM O2S SHORTED TO GROUND
P0152 21 RIGHT O2S SENSOR SHORTED TO VOLTAGE
P0153 21 RIGHT UPSTREAM O2 SENSOR SLOW RESPONSE
P0155 21 RIGHT UPSTREAM O2 SENSOR HEATER FAILURE
P0171 51 FUEL SYSTEM LEAN
P0172 52 FUEL SYSTEM RICH
P0174 51 RIGHT BANK FUEL SYSTEM LEAN
P0175 52 RIGHT BANK FUEL SYSTEM RICH
P0201 27 INJECTOR #1 CONTROL CIRCUIT
P0202 27 INJECTOR #2 CONTROL CIRCUIT
P0203 27 INJECTOR #3 CONTROL CIRCUIT
P0204 27 INJECTOR #4 CONTROL CIRCUIT
P0205 27 INJECTOR #5 CONTROL CIRCUIT
P0206 27 INJECTOR #6 CONTROL CIRCUIT
P0207 27 INJECTOR #7 CONTROL CIRCUIT
P0208 27 INJECTOR #8 CONTROL CIRCUIT
P0209 27 INJECTOR #9 CONTROL CIRCUIT
P0210 27 INJECTOR #10 CONTROL CIRCUIT
P0300 43 MULTIPLE CYLINDER MISFIRE
P0301 43 CYLINDER #1 MISFIRE
P0302 43 CYLINDER #2 MISFIRE
P0303 43 CYLINDER #3 MISFIRE
P0304 43 CYLINDER #4 MISFIRE
P0305 43 CYLINDER #5 MISFIRE
P0306 43 CYLINDER #6 MISFIRE
P0307 43 CYLINDER #7 MISFIRE
P0308 43 CYLINDER #8 MISFIRE
P0309 43 CYLINDER #9 MISFIRE
P0310 43 CYLINDER #10 MISFIRE
P0320 11 NO CRANK REFERENCE SIGNAL AT PCM
P0340 54 NO CAM SIGNAL AT PCM
P0401 32 EGR SYSTEM FAILURE
P0403 32 EGR SOLENOID CIRCUIT
P0420 (1) CATALYTIC CONVERTER EFFICIENCY FAILURE
P0441 31 EVAP PURGE FLOW MONITOR FAILURE
P0442 31 EVAP LEAK MONITOR (SMALL LEAK DETECTED)
P0443 31 EVAP PURGE SOLENOID CIRCUIT
P0455 31 EVAP LEAK MONITOR (LARGE LEAK DETECTED)
P0500 15 NO VEHICLE SPEED SENSOR SIGNAL
P0505 25 IDLE AIR CONTROL MOTOR CIRCUITS
P0551 65 POWER STEERING SWITCH FAILURE
P0600(2) 53 PCM FAILURE SPI COMMUNICATIONS
P0601(2) 53 INTERNAL CONTROLLER FAILURE
P0711 37 TRANS TEMP SENSOR, NO TEMP RISE AFTER START
P0712 37 TRANS TEMP SENSOR VOLTAGE TOO LOW
P0713 37 TRANS TEMP SENSOR VOLTAGE TOO HIGH
P0720 15 LOW OUTPUT SPD SENSOR RPM, ABOVE 15 MPH
P0740 37 TORQ CONV CLU, NO RPM DROP AT LOCKUP
P0743 37 TORQUE CONVERTER CLUTCH SOLENOID/TRANS RELAY CIRCUIT
P0748 45 GOVERNOR PRESSURE SOLENOID/TRANS RELAY CKTS
P0783 45 3-4 SHIFT SOL, NO RPM DROP @ 3-4 SHIFT
P1294 25 TARGET IDLE NOT REACHED
P1296 14 NO 5 VOLTS TO MAP SENSOR
P1297 13 NO CHANGE IN MAP FROM START TO RUN
P1391 11 INTERMITTENT LOSS OF CMP OR CKP
P1398 11 MISFIRE ADAPTIVE NUMERATOR AT LIMIT
P1486 31 EVAP LEAK MONITOR (PINCHED HOSE FOUND)
P1491 35 RAD FAN CONTROL RELAY CIRCUIT
P1492 44 BATTERY TEMP SENSOR VOLTAGE TOO HIGH
P1493 44 BATTERY TEMP SENSOR VOLTAGE TOO LOW
P1494 31 LEAK DETECT PUMP SW OR MECHANICAL FAULT
P1495 31 LEAK DETECTION PUMP SOLENOID CIRCUIT
P1498 71 AUXILIARY 5 VOLT SUPPLY OUTPUT TOO LOW
P1697 62 PCM FAILURE SRI MILE NOT STORED
P1698 63 PCM FAILURE EEPROM WRITE DENIED
P1754 45 GOVERNOR PRESSURE SENSOR VOLTS TOO LOW
P1756 45 GOV PRES NOT EQUAL TO TARGET @ 15-20 PSI
P1757 45 GOV PRES ABOVE 3 PSI IN GEAR WITH 0 MPH
P1762 45 GOV PRES SEN OFFSET VOLTS TOO LOW OR HIGH
P1763 45 GOVERNOR PRESSURE SENSOR VOLTS TOO HI
P1765 45 TRANS 12 VOLT SUPPLY RELAY CNTRL CIRCUIT
P1899 37 P/N SWITCH STUCK IN PARK OR IN GEAR
(1) MIL Code 64 or 72.
(2) Replace Powertrain Control Module (PCM). Perform TEST VER-2A.
(3) This DTC can be set by low fuel level. Ensure fuel tank is at least 1/4 full and retest for DTC.
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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.

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