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NORMAL Mode Code Retrieval

  1. Connect scan tool to Data Link Connector (DLC) No. 3. See Figure. DLC No. 3 is located under left side of instrument panel. Turn ignition on with engine off. Turn scan tool on. Using scan tool manufacturer's instructions, check for DTCs and freeze-frame data.
  2. If scan tool displays UNABLE TO CONNECT TO VEHICLE, DLC No. 3 must be checked. See DLC NO. 3 INSPECTION  under SCAN TOOL PROBLEMS. If scan tool does not display UNABLE TO CONNECT TO VEHICLE, go to next step.
  3. Record any DTCs and freeze-frame data displayed for system diagnosis. If driveability problem exists and no DTCs are present, go to TROUBLE SHOOTING - NO CODES article for diagnosis by symptom.
  4. If any DTCs are present, perform appropriate diagnostic test. See DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION  table. For more information on freeze-frame data, see FREEZE-FRAME DATA  under INTRODUCTION. For information on 2-trip detection logic codes, see TWO-TRIP DETECTION LOGIC  under DETECTION LOGIC under INTRODUCTION.
  5. After repairs for DTC have been completed, DTCs must be cleared from ECM memory. See CLEARING DIAGNOSTIC TROUBLE CODES .
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC (1) Description
P0100  Mass Airflow (MAF) Sensor Circuit
P0101  Mass Airflow (MAF) Sensor Circuit Range/Performance Fault
P0110  Intake Air Temperature (IAT) Sensor Circuit
P0115  Engine Coolant Temperature (ECT) Sensor Circuit
P0116  Engine Coolant Temperature (ECT) Circuit Range/Performance Fault
P0120  Throttle (TP)/Pedal Position Sensor Switch "A" Circuit Malfunction
P0121  Throttle (TP)/Pedal Position Sensor Switch "A" Circuit Range/Performance Fault
P0125  Insufficient Coolant Temperature For Closed Loop Fuel Control
P0128  Thermostat Malfunction
P0130  Heated Oxygen Sensor Circuit Fault (Bank 1 Sensor 1)
P0133  Heated Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0135  Heated Oxygen Sensor Heater Circuit Fault (Bank 1 Sensor 1)
P0136  Heated Oxygen Sensor Circuit Fault (Bank 1 Sensor 2)
P0141  Heated Oxygen Sensor Heater Circuit Fault (Bank 1 Sensor 2)
P0150  Heated Oxygen Sensor Circuit Fault (Bank 2 Sensor 1)
P0153  Heated Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0155  Heated Oxygen Sensor Heater Circuit Fault (Bank 2 Sensor 1)
P0156  Heated Oxygen Sensor Circuit Fault (Bank 2 Sensor 2)
P0161  Heated Oxygen Sensor Heater Circuit Fault (Bank 2 Sensor 2)
P0171  System Too Lean (Fuel Trim)
P0172  System Too Rich (Fuel Trim)
P0174  System Too Lean
P0175  System Too Rich
P0300  Random Cylinder Misfire Detected
P0301, P0302, P0303, P0304, P0305, P0306, P0307 OR P0308  Cylinders No. 1-8 Misfire Detected
P0325 OR P0330  Knock Sensor Circuit Fault
P0335  Crankshaft Position (CKP) Sensor "A" Circuit Fault
P0340  Variable Valve Timing (VVT) Sensor Circuit
P0420  Catalyst System Efficiency Below Threshold (Bank 1)
P0430  Catalyst System Efficiency Below Threshold (Bank 2)
P0440  EVAP System Malfunction
P0441  Incorrect EVAP Purge Flow
P0446  EVAP Vent Control Fault
P0450  EVAP Pressure Sensor Malfunction
P0451  EVAP Pressure Sensor Range/Performance Fault
P0500  Vehicle Speed Sensor (VSS) Malfunction
P0505  Idle Control System Malfunction
P0710(2) Transmission Fluid Temperature Sensor Fault
P0715(2) O/D Direct Clutch Speed Sensor Fault
P0750(2) Shift Solenoid Valve No. 1 Fault
P0753(2) Shift Solenoid Valve No. 1 Electrical Fault
P0755(2) Shift Solenoid Valve No. 2 Fault
P0758(2) Shift Solenoid Valve No. 2 Electrical Fault
P0770(2) Shift Solenoid Valve SL Fault
P0773(2) Shift Solenoid Valve SL Electrical Fault
P1120  Accelerator Pedal Position Sensor Circuit Fault
P1121  Accelerator Pedal Position Sensor Range/Performance Fault
P1125  Throttle Control Motor Circuit Fault
P1126  Magnetic Clutch Circuit Fault
P1127  ETCS Actuator Power Source Circuit Fault
P1128  Throttle Control Motor Lock Fault
P1129  ETCS Fault
P1200  Fuel Pump Relay/ECU Circuit Fault
P1300, P1305, P1310, P1315, P1320, P1325, P1330 Or P1340  Ignitor Circuit Malfunction Nos. 1-8
P1335  Crankshaft Position (CKP) Sensor Circuit
P1520  Stoplight Switch Signal Malfunction
P1600  ECM Batt Malfunction
P1633  ECM Fault (ETCS Circuit)
P1700(2) Vehicle Speed Sensor No. 2 Fault
P1760(2) Shift Solenoid Valve SLT Fault
P1780  Park/Neutral Position Switch Malfunction
P1782(2) Transfer L4 Switch Malfunction
P1783(2) Transfer Neutral Switch Malfunction
B2795(3) Unmatched Key Code
B2796(3) No Communication In Immobilizer System
B2797(3) Communication Malfunction No. 1
B2798(3) Communication Malfunction No. 2
(1) Some codes are two-trip detection logic code(s). For more information, see DETECTION LOGIC  under INTRODUCTION.
(2) These codes only apply to electronically controlled transmissions. For testing procedures, see appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
(3) MIL will not illuminate. For testing procedures, see ENGINE IMMOBILIZER SYSTEMS - RX300 article in ACCESSORIES & EQUIPMENT.
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