OBD II Trouble Code Definitions

OBD2 Diagnostic Trouble Code Tables 1995 - 2016
  • - Heated Catalyst Battery Voltage or Current too Low During Heating (Bank 1)
  • - Heated Catalyst Current too High During Heating (Bank 1)
  • - EGR Function (Open)
  • - Carbon Canister Shut Off valve Control Circuit Electrical
  • - Exhaust Gas Recirculation (EGR) Valve Pintel Stuck Open
  • - Heated Catalyst Power Switch Over temperature Condition (Bank 2)
  • - Heated Catalyst Internal Control Module Checksum/ROM Error
  • - EGR No Flow Detected
  • - EGR Out Of Self Test Range
  • - EGR Vacuum Regulator Solenoid Circuit Malfunction
  • - EGR Valve Position Sensor Circuit Malfunction
  • - Secondary Air Injection System Downstream Flow
  • - Secondary Air Injection Pump Relay Control Circuit Signal Low
  • - Secondary Air Injection System Monitor Circuit High
  • - Secondary Air Injection (AIR) System Bank 1
  • - Secondary Air Injection (AIR) System Bank 2
  • - Secondary Air Valve Control Circuit Electrical
  • - Secondary Air System Bank 1
  • P1422
    - Secondary Air System Bank 2
  • - Secondary Air Injection System Incorrect Flow Detected
  • P1436
    - A/C Evaporator Temperature Circuit Low Input
  • P1437
    - A/C Evaporator Temperature Circuit High Input
  • P1438
    - Purge Control Valve Control Open Circuit
  • P1439
    - Purge Control Valve Control Circuit Signal Low
  • - Purge Control Valve Control Circuit Signal High
  • - Evaporative System Flow During Non-Purge
  • - Leakage Diagnostic Pump Control Circuit Signal Low
  • - Leakage Diagnostic Pump Control Circuit Signal High
  • - Diagnostic Module Tank Leakage (DM-TL) Pump Control Open Circuit
  • - Diagnostic Module Tank Leakage (DM-TL) Pump Control Circuit Signal Low
  • - Diagnostic Module Tank Leakage (DM-TL) Pump Control Circuit Signal High
  • - Diagnostic Module Tank Leakage (DM-TL) Pump Too High During Switching
  • - Diagnostic Module Tank Leakage (DM-TL) Pump Too Low During Switching
  • - Diagnostic Module Tank Leakage (DM-TL) Pump Too High
  • - Diagnostic Module Tank Leakage (DM-TL) Switching Solenoid Open Circuit
  • - Diagnostic Module Tank Leakage (DM-TL) Switching Solenoid Control Circuit Signal Low
  • P1452
    - Diagnostic Module Tank Leakage (DM-TL) Switching Solenoid Control Circuit Signal High
  • P1453
    - Secondary Air Injection Pump Relay Control Circuit Electrical
  • - Secondary Air Injection Pump With Series Resistor Control Circuit Electrical
  • - Leak Detected In EVAP Control System
  • - Leak Detected In EVAP Control System
  • P1459
    - Heated Catalyst Heater Power Supply Open Circuit (Bank 2)
  • P1460
    - Heated Catalyst Heater Power Switch Temperature Sensor Electrical (Bank 2)
  • P1461
    - Heated Catalyst Gate Voltage Signal Low
  • P1462
    - Heated Catalyst Internal Control Module Checksum/ROM Error
  • P1463
    - Heated Catalyst Battery Temperature Sensor 1 Electrical
  • P1464
    - Heated Catalyst Battery Temperature Sensor 2 Electrical
  • - Heated Catalyst Battery Temperature Sensor 1 or 2 Plausibility
  • P1466
    - Heated Catalyst Power Switch Temperature Sensor Plausibility
  • P1467
    - Heated Catalyst Comparison Battery Voltages of Power Switches Plausibility
  • - Heated Catalyst Battery Disconnecting Switch Plausibility
  • P1469
    - Low A/C Cycling Period
  • P1470
    - Leakage Diagnostic Pump Control Circuit Electrical
  • - Diagnostic Module Tank leakage (DM-TL) Switching Solenoid Control Circuit Electrical
  • P1473
    - Diagnostic Module Tank leakage (DM-TL) Pump Current Plausibility
  • - HCF Primary Circuit Failure
  • - Leakage Diagnostic Pump Reed Switch Did Not Close
  • - Leakage Diagnostic Pump Clamped Tube
  • - Too Much Secondary Air
  • - Battery Temp Sensor Volts Out of Limit
  • - Transmission Fan Relay Circuit
  • P1480
    - PCV Solenoid Valve
  • P1482
    - Catalyst Temperature Sensor Circuit Shorted Low
  • P1483
    - Engine Cooling System Performance
  • P1484
    - Catalytic Converter Overheat Detected
  • P1485
    - Air Injection Solenoid Circuit
  • - Evap Leak Monitor Pinched Hose
  • - Hi Speed Rad Fan CTRL Relay Circuit
  • P1488
    - Auxiliary 5 Volt Supply Output Too Low
  • P1489
    - High Speed Fan CTRL Relay Circuit
  • - Low Speed Fan CTRL Relay Circuit
  • - Malfunction In EGR System
  • - EVAP Canister Purge Control/Solenoid Valve (Circuit)
  • P1493
    - Ambient/Batt Temp Sen Volts Too Low
  • - Leak Detection Pump Switch or Mechanical Fault
  • - Leak Detection Pump Solenoid Circuit
  • - 5 Volt Supply Output Too Low
  • - Voltage Problem In EGR Valve Position Sensor Circuit
  • Please go to our P1400-P1499 forum for aditional codes and for questions and answers about your particular trouble code.