Jeep Cherokee 2000 Service Manual - page 1927
(M)
Malfunction Indicator Lamp (MIL) illuminated during engine operation if this DTC was
recorded (depending if required by CARB and/or EPA). MIL is displayed as an engine icon on
instrument panel.
P0600
PCM Failure SPI Communications
No communication detected between co-processors in the
control module.
P0601 (M)
Internal Controller Failure
Internal control module fault condition (check sum)
detected.
P0602 (M)
ECM Fueling Calibration Error
ECM Internal fault condition detected.
P0604
RAM Check Failure
Transmission control module RAM self test fault detected.
-Aisin transmission
P0605
ROM Check Falure
Transmission control module ROM self test fault detected
-Aisin transmission
P0606 (M)
ECM Failure
ECM Internal fault condition detected.
P0615
Starter Relay Control Circuit
An open or shorted condition detected in the starter relay
control circuit.
P0622 (G)
Generator Field Not Switching
Properly
An open or shorted condition detected in the generator
field control circuit.
P0645
A/C Clutch Relay Circuit
An open or shorted condition detected in the A/C clutch
relay control circuit.
P0700
EATX Controller DTC Present
This SBEC III or JTEC DTC indicates that the EATX or
Aisin controller has an active fault and has illuminated the
MIL via a CCD (EATX) or SCI (Aisin) message. The
specific fault must be acquired from the EATX via CCD or
from the Aisin via ISO-9141.
P0703
Brake Switch Stuck Pressed or
Released
Incorrect input state detected in the brake switch circuit.
(Changed from P1595)
P0711 (M)
Trans Temp Sensor, No Temp Rise
After Start
Relationship between the transmission temperature and
overdrive operation and/or TCC operation indicates a
failure of the Transmission Temperature Sensor. OBD II
Rationality. Was MIL code 37.
P0712
Trans Temp Sensor Voltage Too Low
Transmission fluid temperature sensor input below
acceptable voltage. Was MIL code 37.
P0712 (M)
Trans Temp Sensor Voltage Too Low
Voltage less than 1.55 volts (4-speed auto. trans. only).
P0713
Trans Temp Sensor Voltage Too
High
Transmission fluid temperature sensor input above
acceptable voltage. Was MIL code 37.
P0713 (M)
Trans Temp Sensor Voltage Too
High
Voltage greater than 3.76 volts (4-speed auto. trans.
only).
P0720 (M)
Low Output SPD Sensor RPM,
Above 15 MPH
The relationship between the Output Shaft Speed Sensor
and vehicle speed is not within acceptable limits.
P0720 (M)
Low Output Spd Sensor RPM Above
15 mph
Output shaft speed is less than 60 rpm with vehicle speed
above 15 mph (4-speed auto. trans. only).
P0740 (M)
Torq Con Clu, No RPM Drop at
Lockup
Relationship between engine and vehicle speeds
indicated failure of torque convertor clutch lock-up system
(TCC/PTU solenoid)
P0743 (M)
Torque Converter Clutch Solenoid/
Trans Relay Circuits
An open or shorted condition detected in the torque
converter clutch (part throttle unlock) solenoid control
circuit. Shift solenoid C electrical fault - Aisin transmission
XJ
EMISSION CONTROL SYSTEMS
25 - 9
DESCRIPTION AND OPERATION (Continued)