DaimlerChrysler Jeep Grand Cherokee 2002, Service Manual

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INTAKE PORT SWIRL ACTUATOR OPEN CIR-
CUIT
INTAKE PORT SWIRL ACTUATOR SHORT
CIRCUIT
J1850 COMMUNICATION BUS LOST ARBI-
TRATION
J1850 COMMUNICATION BUS RECEIVE TIM-
EOUT
J1850 COMMUNICATION BUS SHORT TO
GROUND
J1850 COMMUNICATION BUS SHORT TO
VOLTAGE
J1850 COMMUNICATION BUS SPI ERROR
J1850 COMMUNICATION BUS TRANSMIT
BUFFER OVERRUN
J1850 COMMUNICATION BUS UNAUTHO-
RIZED RESET
MASS AIR FLOW SENSOR SIGNAL VOLTAGE
TOO HIGH
MASS AIR FLOW SENSOR SIGNAL VOLTAGE
TOO LOW
MASS AIR FLOW SENSOR SUPPLY VOLTAGE
TOO HIGH OR LOW
MIL/DIAG LAMP VIA J1850 BUS - IN FRAME
RESPONSE ERROR
MIL/DIAG LAMP VIA J1850 BUS - STATUS
ERROR
OIL PRESS SENSOR CKT MALF SIGNAL
VOLTAGE TOO HIGH
OIL PRESS SENSOR CKT MALF SIGNAL
VOLTAGE TOO LOW
OIL PRESS SENSOR CKT MALF SUPPLY
VOLTAGE TOO HIGH OR LOW
P/N SWITCH CIRCUIT RATIONALITY PLAU-
SIBILITY
S/C SWITCH SIGNAL CIRCUIT PLAUSIBILITY
S/C SWITCH SIGNAL CIRCUIT SIGNAL VOLT-
AGE TOO HIGH
S/C SWITCH SIGNAL CIRCUIT SIGNAL VOLT-
AGE TOO LOW
SENSOR REFERENCE VOLTAGE A CKT VOLT-
AGE TOO HIGH
SENSOR REFERENCE VOLTAGE A CKT VOLT-
AGE TOO LOW
SENSOR REFERENCE VOLTAGE B CKT
VOLTAGE TOO HIGH
SENSOR REFERENCE VOLTAGE B CKT
VOLTAGE TOO LOW
SKIM SYSTEM INVALID KEY CODE RE-
CEIVED
SKIM SYSTEM INVALID SECRET KEY IN EE-
PROM
SKIM SYSTEM KEY COMMUNICATION
TIMED OUT
SKIM SYSTEM WRITE ACCESS TO EEPROM
FAILURE
STARTER RELAY CIRCUIT SHORT CIRCUIT
SYSTEM VOLTAGE TOO HIGH
SYSTEM VOLTAGE TOO LOW
TRANSFER CASE POSITION SENSOR PLAU-
SIBILITY
TRANSFER CASE POSITION SENSOR PLAU-
SIBILITY 2
TRANSFER CASE POSITION SENSOR SIG-
NAL VOLTAGE TOO HIGH
TRANSFER CASE POSITION SENSOR SIG-
NAL VOLTAGE TOO LOW
TRANS CONTROL INTERNAL CONTROLLER
TRANS CONTROL 1-2/4-5 SOLENOID CIR-
CUIT
TRANS CONTROL 2-3 SOLENOID CIRCUIT
TRANS CONTROL 3-4 SOLENOID CIRCUIT
TRANS CONTROL TCC SOLENOID CIRCUIT
TRANS CONTROL MOD. PRESS SOLENOID
CIRCUIT
TRANS CONTROL SHIFT PRESSURE SOLE-
NOID CIRCUIT
TRANS CONTROL SOLENOID SUPPLY VOLT-
AGE
TRANS CONTROL N2 OR N3 INPUT SENSOR
CIRCUIT
TRANS CONTROL INTERNAL SHIFT FAIL-
URE
TRANS CONTROL ABS SENSOR MESSAGE
TRANS CONTROL IMPROPER RATIO OR
TRANSMISSION SLIPPING
TRANS CONTROL ENGINE T-CASE SWITCH
MESSAGE
TRANS CONTROL TCC FAULT
TRANS CONTROL IMPROPER GEAR
TURBOCHARGER
WASTEGATE SOL CKT
NEGATIVE DEVIATION
TURBOCHARGER WASTEGATE SOL CKT
OPEN CIRCUIT
TURBOCHARGER WASTEGATE SOL CKT
POSITIVE DEVIATION
TURBOCHARGER WASTEGATGE SOL CKT
SHORT CIRCUIT
VEHICLE SPEED SENSOR FREQUENCY TOO
HIGH
VEHICLE SPEED SENSOR PLAUSIBILITY
VEHICLE SPEED SENSOR SIGNAL VOLTAGE
TOO HIGH
VISCOUS HEATER OPEN CIRCUIT
VISCOUS HEATER SHORT CIRCUIT
VOLTAGE REGULATOR SIGNAL VOLTAGE
TOO HIGH
VOLTAGE REGULATOR SIGNAL VOLTAGE
TOO LOW
3.3.4 SKIM DIAGNOSTIC TROUBLE
CODES
ANTENNA FAILURE
COP FAILURE
EEPROM FAILURE
6
GENERAL INFORMATION
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