(M) Check Engine Lamp (MIL) will illuminate during engine operation if this Diagnostic Trouble Code was
recorded.
(G) Generator Lamp Illuminated
P0132 (M)
1/1 O2 Sensor Shorted To Voltage
Oxygen sensor input voltage maintained above normal
operating range.
P0133 (M)
1/1 O2 Sensor Slow Response
Oxygen sensor response slower than minimum required
switching frequency.
P0134 (M)
1/1 O2 Sensor Stays at Center
Neither rich or lean condition is detected from the oxygen
sensor input.
P0135 (M)
1/1 O2 Sensor Heater Failure
Oxygen sensor heater element malfunction.
P0136
1/2 O2 Sensor Heater Relay Circuit
An open or shorted condition detected in the ASD or CNG
shutoff relay control ckt.
P0137 (M)
1/2 O2 Sensor Shorted To Ground
Oxygen sensor input voltage maintained below normal
operating range.
P0138 (M)
1/2 O2 Sensor Shorted To Voltage
Oxygen sensor input voltage maintained above normal
operating range.
P0139 (M)
1/2 O2 Sensor Slow Response
Oxygen sensor response not as expected.
P0140 (M)
1/2 O2 Sensor Stays at Center
Neither rich or lean condition is detected from the oxygen
sensor.
P0141 (M)
1/2 O2 Sensor Heater Failure
Oxygen sensor heater element malfunction.
P0143
1/3 O2 Sensor Shorted To Ground
Oxygen sensor input voltage maintained below normal
operating range.
P0144
1/3 O2 Sensor Shorted To Voltage
Oxygen sensor input voltage maintained above normal
operating range.
P0145
1/3 O2 Sensor Slow Response
Oxygen sensor response slower than minimum required
switching frequency.
P0146
1/3 O2 Sensor Stays at Center
Neither rich or lean condition is detected from the oxygen
sensor.
P0147
1/3 O2 Sensor Heater Failure
Oxygen sensor heater element malfunction.
P0151 (M)
2/1 O2 Sensor Shorted To Ground
Oxygen sensor input voltage maintained below normal
operating range.
P0152 (M)
2/1 O2 Sensor Shorted To Voltage
Oxygen sensor input voltage sustained above normal
operating range.
P0153 (M)
2/1 O2 Sensor Slow Response
Oxygen sensor response slower than minimum required
switching frequency.
P0154 (M)
2/1 O2 Sensor Stays at Center
Neither rich or lean condition is detected from the oxygen
sensor.
P0155 (M)
2/1 O2 Sensor Heater Failure
Oxygen sensor heater element malfunction.
P0157 (M)
2/2 O2 Sensor Shorted To Ground
Oxygen sensor input voltage maintained below normal
operating range.
P0158 (M)
2/2 O2 Sensor Shorted To Voltage
Oxygen sensor input voltage maintained above normal
operating range.
P0159
2/2 O2 Sensor Slow Response
Oxygen sensor response slower than minimum required
switching frequency.
P0160 (M)
2/2 O2 Sensor Stays at Center
Neither rich or lean condition is detected from the oxygen
sensor.
P0161 (M)
2/2 O2 Sensor Heater Failure
Oxygen sensor heater element malfunction.
25 - 4
EMISSION CONTROL SYSTEMS
NS
DESCRIPTION AND OPERATION (Continued)