Malfunction Indicator Lamp (Mil) Illuminated During Engine Operation - Jeep Cherokee 2000 Service Manual

25 - 4 EMISSION CONTROL SYSTEMS
DESCRIPTION AND OPERATION (Continued)
Malfunction Indicator Lamp (MIL) illuminated during engine operation if this DTC was
(M)
recorded (depending if required by CARB and/or EPA). MIL is displayed as an engine icon on
P0131 (M) 1/1 O2 Sensor Shorted To Ground
P0132 (M) 1/1 O2 Sensor Shorted To Voltage
P0133 (M) 1/1 O2 Sensor Slow Response
P0134 (M) 1/1 O2 Sensor Stays at Center
P0135 (M) 1/1 O2 Sensor Heater Failure
P0136 (M) 1/2 O2 Sensor Heater Circuit
P0137 (M) 1/2 O2 Sensor Shorted To Ground
P0138 (M) 1/2 O2 Sensor Shorted To Voltage
P0139 (M) 1/2 O2 Sensor Slow Response
P0140 (M) 1/2 O2 Sensor Stays at Center
P0141 (M) 1/2 O2 Sensor Heater Failure
P0143 (M) 1/3 O2 Sensor Shorted To Ground
P0144 (M) 1/3 O2 Sensor Shorted To Voltage
P0145 (M) 1/3 O2 Sensor Slow Response
P0146 (M) 1/3 O2 Sensor Stays at Center
P0147 (M) 1/3 O2 Sensor Heater Failure
P0151 (M) 2/1 O2 Sensor Shorted To Ground
P0152 (M) 2/1 O2 Sensor Shorted To Voltage
P0153 (M) 2/1 O2 Sensor Slow Response
P0154 (M) 2/1 O2 Sensor Stays at Center
P0155 (M) 2/1 O2 Sensor Heater Failure
P0157 (M) 2/2 O2 Sensor Shorted To Ground
P0158 (M) 2/2 O2 Sensor Shorted To Voltage
P0159 2/2 O2 Sensor Slow Response
P0160 (M) 2/2 O2 Sensor Stays at Center
instrument panel.
Malfunction
Oxygen sensor input voltage maintained below normal
operating range.
Oxygen sensor input voltage maintained above normal
operating range.
Oxygen sensor response slower than minimum required
switching frequency.
Neither rich or lean condition is detected from the oxygen
sensor input.
Oxygen sensor heater element malfunction.
Oxygen sensor heater element malfunction.
Oxygen sensor input voltage maintained below normal
operating range.
Oxygen sensor input voltage maintained above normal
operating range.
Oxygen sensor response not as expected.
Neither rich or lean condition is detected from the oxygen
Oxygen sensor heater element malfunction.
Oxygen sensor input voltage maintained below normal
operating range.
Oxygen sensor input voltage maintained above normal
operating range.
Oxygen sensor response slower than minimum required
switching frequency.
Neither rich or lean condition is detected from the oxygen
Oxygen sensor heater element malfunction.
Oxygen sensor input voltage maintained below normal
operating range.
Oxygen sensor input voltage sustained above normal
operating range.
Oxygen sensor response slower than minimum required
switching frequency.
Neither rich or lean condition is detected from the oxygen
Oxygen sensor heater element malfunction.
Oxygen sensor input voltage maintained below normal
operating range.
Oxygen sensor input voltage maintained above normal
operating range.
Oxygen sensor response slower than minimum required
switching frequency.
Neither rich or lean condition is detected from the oxygen
sensor.
sensor.
sensor.
sensor.
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