Jeep Cherokee 2000 Service Manual - page 1924
(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.
P0216 (M)
Fuel Injection Pump Timing Failure
High fuel supply restriction, low fuel pressure or possible
wrong or incorrectly installed pump keyway.
P0217
Decreased Engine Performance Due
To Engine Overheat Condition
Engine overheating. ECM will derate engine performance.
P0219
Crankshaft Position Sensor
Overspeed Signal
Engine has exceeded rpm limits.
P0222 (M)
Idle Validation Signals Both Low
Problem detected with idle validation circuits within APPS.
P0223 (M)
Idle Validation Signals Both High
(Above 5 Volts)
Problem detected with idle validation circuits within APPS.
P0230
Transfer Pump (Lift Pump) Circuit
Out of Range
Problem detected in fuel transfer pump circuits.
P0232
Fuel Shutoff Signal Voltage Too High
Fuel shut-off signal voltage too high from ECM to fuel
injection pump.
P0234 (M)
Turbo Boost Limit Exceeded
Problem detected in turbocharger wastegate.
P0236 (M)
Map Sensor Too High Too Long
Problem detected in turbocharger wastegate.
P0237 (M)
Map Sensor Voltage Too Low
MAP sensor voltage input below the minimum acceptable
voltage.
P0238 (M)
Map Sensor Voltage Too High
MAP sensor voltage input above the maximum
acceptable voltage.
P0251 (M)
Fuel Inj. Pump Mech. Failure Fuel
Valve Feedback Circuit
Problem sensed with fuel circuit internal to fuel injection
pump.
P0253 (M)
Fuel Injection Pump Fuel Valve
Open Circuit
Problem sensed with fuel circuit internal to fuel injection
pump.
P0254
Fuel Injection Pump Fuel Valve
Current Too High
Problem caused by internal fuel injection pump failure.
P0300 (M)
Multiple Cylinder Mis-fire
Misfire detected in multiple cylinders.
P0301 (M)
CYLINDER #1 MISFIRE
Misfire detected in cylinder #1.
P0302 (M)
CYLINDER #2 MISFIRE
Misfire detected in cylinder #2.
P0303 (M)
CYLINDER #3 MISFIRE
Misfire detected in cylinder #3.
P0304 (M)
CYLINDER #4 MISFIRE
Misfire detected in cylinder #4.
P0305 (M)
CYLINDER #5 MISFIRE
Misfire detected in cylinder #5.
P0306 (M)
CYLINDER #6 MISFIRE
Misfire detected in cylinder #6.
P0307 (M)
CYLINDER #7 MISFIRE
Misfire detected in cylinder #7
P0308 (M)
CYLINDER #8 MISFIRE
Misfire detected in cylinder #8.
P0309 (M)
CYLINDER #9 MISFIRE
Misfire detected in cylinder #9.
P0310 (M)
CYLINDER #10 MISFIRE
Misfire detected in cylinder #10.
P0320 (M)
No Crank Referance Signal at PCM
No reference signal (crankshaft position sensor) detected
during engine cranking.
P0320 (M)
No RPM Signal to PCM (Crankshaft
Position Sensor Signal to JTEC)
A CKP signal has not been detected at the PCM.
P0325
Knock Sensor #1 Circuit
Knock sensor (#1) signal above or below minimum
acceptable threshold voltage at particular engine speeds.
25 - 6
EMISSION CONTROL SYSTEMS
XJ
DESCRIPTION AND OPERATION (Continued)