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Home >> Jeep >> 1992 >> Cherokee Base, 2D Utility, 2.5 P, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> DTC & Fault Codes/Messages >> FAULT CODES/MESSAGES (Note: For DTC table, see TEST NS-1A under "Testing.")
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FAULT CODES/MESSAGES (Note: For DTC table, see TEST NS-1A under "Testing.")

FAULT CODES

Code Display On DRB-II (1) Fault Condition
11 IGN REFERENCE SIGNAL No Distributor Reference Signal Detected During Cranking
13 (2)(3) SLOW CHANGE IN MAP SIGNAL No Difference In MAP Sensor Signal Is Detected
" NO CHANGE IN MAP (FROM START TO RUN) No Difference Detected Between MAP And Barometric Pressure Readings
14 (2)(3) MAP VOLTAGE TOO LOW MAP Sensor Input Less Than Minimum Acceptable Voltage
" MAP VOLTAGE TOO HIGH MAP Sensor Input More Than Maximum Acceptable Voltage
15 (2) NO VEHICLE SPEED SIGNAL No Speed Sensor Signal Detected With Road Load Conditions
17 ENGINE IS COLD TOO LONG Coolant Temperature Stays Below Normal Operating Temperature During Vehicle Operation
21 (3) O2 SIGNAL STAYS AT CENTER Neither Rich Nor Lean Condition Is Detected From Oxygen Sensor Input
" O2 SENSOR SHORTED TO VOLTAGE Oxygen Sensor Input Voltage Maintained Above Normal Operating Range
22 (2)(3) COOLANT SENSOR VOLTAGE TOO LOW Coolant Temperature Sensor Input Below Minimum Acceptable Voltage
" COOLANT SENSOR VOLTAGE TOO HIGH Coolant Temperature Sensor Input Above Maximum Acceptable Voltage
23 (2)(3) CHARGE TEMP SENSOR VOLTAGE LOW Charge Temperature Sensor Input Below Minimum Acceptable Voltage
" CHARGE TEMP SENSOR VOLTAGE HIGH Charge Temperature Sensor Input Above Maximum Acceptable Voltage
24 (2)(3) TPS VOLTAGE LOW TPS Sensor Output Below Minimum Acceptable Voltage
" TPS VOLTAGE HIGH TPS Sensor Output Above Maximum Acceptable Voltage
25 (3) AUTOMATIC IDLE SPEED A Shorted Or Open Circuit Detected In One Or More
" MOTOR CIRCUITS Automatic Idle Speed (AIS) Motor Circuits
27 (2)(3) INJECTOR (#) CONTROL CIRCUIT Injector (Number) Output Driver Does Not Respond Correctly To Control Signal
33 A/C CLUTCH RELAY CIRCUIT Open Or Shorted Condition Detected In A/C Clutch Relay Circuit
34 (4) SPEED CONTROL SOLENOID CIRCUITS Open Or Shorted Condition Detected In Speed (Cruise) Control Vacuum Or Vent Solenoid Circuits
35 (4) RADIATOR FAN RELAY Open Or Shorted Condition Detected In Radiator Fan Relay Circuit
41 (2)(3) ALTERNATOR FIELD NOT SWITCHING PROPERLY An Open Or Shorted Condition Detected In Alternator (Generator) Field Circuit
42 ASD RELAY CIRCUIT An Open Or Shorted Condition Detected In ASD Relay Circuit
" NO ASD RELAY VOLTAGE SENSED AT CONTROLLER No ASD Relay Voltage Sensed At Controller (PCM)
44 BATTERY TEMP SENSOR VOLTAGE OUT OF LIMIT Battery Temperature Sensor Voltage Out Of Limit
46 (2)(3) CHARGING SYSTEM VOLTAGE TOO HIGH Charging System Voltage Too High
47 (2)(3) CHARGING SYSTEM VOLTAGE TOO LOW Charging System Voltage Too Low
51 (3) O2 SIGNAL STAYS BELOW CENTER (LEAN) Oxygen Sensor Signal Stays Lean
52 (3) O2 SIGNAL STAYS ABOVE CENTER (RICH) Oxygen Sensor Signal Stays Rich
53 INTERNAL CONTROLLER FAILURE Internal Engine Controller (PCM) Fault Condition Detected
" CONTROLLER FAILURE SPI COMMUNICATIONS No Internal Communication Between Co-Processors
54 NO SYNC PICK-UP SIGNAL No Synchronization Pick-Up Signal
55 NO DISPLAY (BLANK) Completion Of Fault Code Display By CHECK ENGINE Light
62 CONTROLLER FAILURE (EMR MILES NOT STORED) Engine Controller (PCM) Failure, EMR (SRI) Miles Not Stored
63 CONTROLLER FAILURE EEPROM WRITE DENIED Engine Controller (PCM) Failure, EEPROM Write Denied
76 (4) FUEL PUMP RESISTOR BYPASS RELAY CIRCUIT An Open Or Shorted Condition Detected In The Ballast Resistor By-Pass Circuit
(1) Actual message displayed on DRB-II.
(2) CHECK ENGINE light on.
(3) CHECK ENGINE light on (California only).
(4) Cherokee and Comanche only.