Diagnostic Trouble Code Definitions

2000 Chevrolet Cavalier Base, 2D Coupe, Automatic, 4T40E/MN4SECTION Diagnostic Trouble Code Definitions
NOTE: Use of Tech 1 or Tech 2 scan tool is required to retrieve DTCs. Refer to user reference manual supplied with scan tool.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Definition
P0105  MAP/TP Sensor Performance/Range
P0107  MAP Sensor Circuit - Low Voltage
P0108  MAP Sensor Circuit - High Voltage
P0112  IAT Sensor Circuit - Low Voltage
P0113  IAT Sensor Circuit - High Voltage
P0117  ECT Sensor Circuit - Low Voltage
P0118  ECT Sensor Circuit - High Voltage
P0122  TP Sensor Circuit - Low Voltage
P0123  TP Sensor Circuit - High Voltage
P0125  ECT Excessive Time To Enter Closed Loop Fuel Control
P0128  ECT Less Than Thermostat Regulating Temperature (2.2L "J" Body)
P0128  ECT Less Than Thermostat Regulating Temperature (2.4L "J" & "N" Bodies)
P0130  O2S 1 Circuit Closed-Loop Performance (2.4L "J" & "N" Bodies)
P0131  O2S 1 Circuit - Low Voltage
P0132  O2S 1 Circuit - High Voltage
P0133  O2S 1 Circuit - Slow Response (2.2L "J" Body)
P0133  O2S 1 Circuit Slow Response (2.4L "J" & "N" Bodies)
P0134  O2S 1 Circuit - Insufficient Activity (2.2L "J" Body)
P0134  O2S 1 Circuit - Insufficient Activity (2.4L "J" & "N" Bodies)
P0137  HO2S 2 Circuit - Low Voltage
P0138  HO2S 2 Circuit - High Voltage
P0140  HO2S 2 Circuit - Insufficient Activity
P0141  HO2S 2 Heater Circuit (Except 2.4L "N" Body)
P0141  HO2S 2 Heater Circuit (2.4L "N" Body)
P0171  Fuel Trim System Lean (Except 2.4L "N" Body)
P0171  Fuel Trim System Lean (2.4L "N" Body)
P0172  Fuel Trim System Rich
P0201  Injector No. 1 Control Circuit (Except 2.4L "N" Body)
P0201  Injector No. 1 Control Circuit (2.4L "N" Body)
P0202  Injector No. 2 Control Circuit (Except 2.4L "N" Body)
P0202  Injector No. 2 Control Circuit (2.4L "N" Body)
P0203  Injector No. 3 Control Circuit (Except 2.4L "N" Body)
P0203  Injector No. 3 Control Circuit (2.4L "N" Body)
P0204  Injector No. 4 Control Circuit (Except 2.4L "N" Body)
P0204  Injector No. 4 Control Circuit (2.4L "N" Body)
P0300  Engine Misfire Detected (2.2L "J" Body)
P0300  Engine Misfire Detected (2.4L "J" & "N" Bodies)
P0301  Cyl. No. 1 Misfire Detected (2.2L "J" Body)
P0301  Cyl. No. 1 Misfire Detected (2.4L "J" Body)
P0302  Cyl. No. 2 Misfire Detected (2.2L "J" Body)
P0302  Cyl. No. 2 Misfire Detected (2.4L "J" Body)
P0303  Cyl. No. 3 Misfire Detected (2.2L "J" Body)
P0303  Cyl. No. 3 Misfire Detected (2.4L "J" Body)
P0304  Cyl. No. 4 Misfire Detected (2.2L "J" Body)
P0304  Cyl. No. 4 Misfire Detected (2.4L "J" Body)
P0325  Knock Sensor Circuit
P0335  CKP Sensor Circuit (Except 2.4L "N" Body)
P0336  CKP Sensor Circuit (2.4L "N" Body)
P0340  CMP Sensor Circuit - Low Input
P0341  CMP Sensor Circuit Performance
P0420  TWC System - Low Efficiency
P0440  EVAP System
P0442  EVAP Control System - Small Leak Detected
P0446  EVAP Vent System Performance
P0452  Fuel Tank Pressure Sensor Circuit - Low Voltage
P0453  Fuel Tank Pressure Sensor Circuit - High Voltage
P0461  Fuel Level Sensor Circuit Performance
P0462  Fuel Level Sensor Circuit - Low Voltage
P0463  Fuel Level Sensor Circuit - High Voltage
P0480  Cooling Fan Relay No. 1 Circuit (2.2L "J" Body)
P0480  Cooling Fan Relay No. 1 Circuit (2.4L "N" Body)
P0481  Cooling Fan Relay No. 2 Circuit (2.4L "N" Body)
P0502  VSS Circuit - Low Input
P0506  Idle Speed Low (2.2L "J" Body)
P0506  Idle Speed Low (2.4L "J" & "N" Bodies)
P0507  Idle Speed High (2.4L "N" Body)
P0530  A/C Refrigerant Pressure Sensor Circuit (Except 2.4L "N" Body)
P0530  A/C Refrigerant Pressure Sensor Circuit (2.4L "N" Body)
P0562  System Voltage Low
P0563  System Voltage High
P0601  PCM Memory
P0602  PCM Not Programmed
P0705 (2) Transmission Range Switch Circuit
P1133  O2S 1 Insufficient Switching
P1137  Rear HO2S Circuit Low Voltage During Power Enrichment
P1138  Rear HO2S Circuit High Voltage During Decel Fuel Cut-Off
P1171  Fuel System Lean During Acceleration
P1336  CKP System Variation Not Learned
P1441  EVAP System Flow During Non-Purge
P1621  PCM Memory Performance
P1626  Theft Deterrent Fuel Enable Signal Circuit (Except 2.4L "N" Body)
P1626  Theft Deterrent Fuel Enable Signal Circuit (2.4L "N" Body)
P1630  Theft Deterrent System Learn Mode Active
P1631  Theft Deterrent Fuel Enable Signal Not Correct
P1632  Theft Deterrent Fuel Disabled Signal Received
(1) DTC definitions may vary depending on vehicle and/or engine configuration.
(2) See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.