Engine Self-Diagnostics - Except Convertible

• Introduction
• Self-Diagnostic System
  • Notes
  • On-Board Diagnostics
    • Notes
    • Hard Failures
    • Intermittent Failures
  • Service Precautions
  • Diagnostic Procedure
  • Visual Inspection
  • Retrieving Diagnostic Trouble Codes
    • Notes
    • Using Scan Tool
    • Using Malfunction Indicator Light (MIL)
  • Clearing Diagnostic Trouble Codes
    • Notes
    • Using Scan Tool
    • Without Scan Tool
  • Powertrain Control Module Location
• Fuel Pressure Release
• Intermittent Malfunction
• Summary
• Diagnostic Trouble Code Definitions
• Diagnostic Tests
  • Notes
  • DTC Test No. 1: No Cam Signal At Pcm
  • DTC Test No. 2: Internal Controller Failure
  • DTC Test No. 3: Charging System Voltage Too Low
  • DTC Test No. 4: Charging System Voltage Too High
  • DTC Test No. 5: ASD Relay Control Circuit
  • DTC Test No. 6: Generator Field Not Switching Properly
  • DTC Test No. 7: A/C Compressor Clutch Relay Circuit
  • DTC Test No. 8: EGR Solenoid Circuit
  • DTC Test No. 9: EVAP Purge Solenoid Circuit
  • DTC Test No. 10: Injector No. 3 Control Circuit
  • DTC Test No. 11: Injector No. 2 Control Circuit
  • DTC Test No. 12: Injector No. 1 Control Circuit
  • DTC Test No. 13: Idle Air Control Motor Circuits
  • DTC Test No. 14: Throttle Position Sensor Voltage Low
  • DTC Test No. 15: Throttle Position Sensor Voltage High
  • DTC Test No. 16: Engine Coolant Temp. Sensor Voltage Too Low
  • DTC Test No. 17: Engine Coolant Temp. Sensor Voltage Too High
  • DTC Test No. 18: Left Bank Upstream Ho2S Stays At Center
  • DTC Test No. 19: Engine Is Cold Too Long
  • DTC Test No. 20: No Vehicle Speed Sensor Signal
  • DTC Test No. 21: Map Sensor Voltage Too Low
  • DTC Test No. 22: Map Sensor Voltage Too High
  • DTC Test No. 23: No Change In Map From Start To Run
  • DTC Test No. 24: No Crank Reference Signal At Pcm
  • DTC Test No. 25: Ignition Coil No. 1 Primary Circuit
  • DTC Test No. 26: No ASD Relay Output Voltage At Pcm
  • DTC Test No. 27: EGR System Failure
  • DTC Test No. 28: Pcm Failure - Sri Mile Not Stored
  • DTC Test No. 29: Pcm Failure - EEPROM Write Denied
  • DTC Test No. 30: Intake Air Temperature Sensor Voltage Low
  • DTC Test No. 31: Intake Air Temperature Sensor Voltage High
  • DTC Test No. 32: Barometric Pressure Out Of Range
  • DTC Test No. 33: Injector No. 4 Control Circuit
  • DTC Test No. 34: Left Bank Upstream Ho2S Shorted To Voltage
  • DTC Test No. 35: Right Bank Upstream Ho2S Stays At Center
  • DTC Test No. 36: Right Bank Upstream Ho2S Shorted To Voltage
  • DTC Test No. 37: Pcm Failure - SPI Communications
  • DTC Test No. 38: Injector No. 5 Control Circuit
  • DTC Test No. 39: Injector No. 6 Control Circuit
  • DTC Test No. 40: Battery Temperature Sensor Volts Out Of Limit
  • DTC Test No. 41: Low Speed Fan Control Relay Circuit
  • DTC Test No. 42: High Speed Condenser Fan Control Relay Circuit
  • DTC Test No. 43: No CCD Messages From TCM
  • DTC Test No. 44: Fuel Pump Relay Control Circuit
  • DTC Test No. 45: Left Bank Upstream Ho2S Response
  • DTC Test No. 46: Left Bank Upstream Ho2S Heater Failure
  • DTC Test No. 47: Left Bank Downstream Ho2S Heater Failure
  • DTC Test No. 48: Multiple Cylinder Misfire
  • DTC Test No. 49: Cylinder No. 1-6 Misfire
  • DTC Test No. 50: Left Bank Catalytic Converter Efficiency Failure
  • DTC Test No. 51: Evaporative Purge Flow Monitor Failure
  • DTC Test No. 52: Park/Neutral Position (PNP) Switch Failure
  • DTC Test No. 53: Power Steering Pressure (PSP) Switch Failure
  • DTC Test No. 54: Left Bank Fuel System Rich
  • DTC Test No. 55: Left Bank Fuel System Lean
  • DTC Test No. 56: Right Bank Fuel System Rich
  • DTC Test No. 57: Right Bank Fuel System Lean
  • DTC Test No. 58: Right Bank Upstream Ho2S Response
  • DTC Test No. 59: Right Bank Upstream Ho2S Heater Failure
  • DTC Test No. 60: Right Bank Downstream Ho2S Heater Failure
  • DTC Test No. 61: Left Bank Downstream Ho2S Shorted To Voltage
  • DTC Test No. 62: Right Bank Downstream Ho2S Shorted To Voltage
  • DTC Test No. 63: Closed Loop Temperature Not Reached
  • DTC Test No. 64: Left Bank Downstream Ho2S Stays At Center
  • DTC Test No. 65: Right Bank Downstream Ho2S Stays At Center
  • DTC Test No. 66: Throttle Position Does Not Agree With Map
  • DTC Test No. 67: No 5 Volts To Map Sensor
  • DTC Test No. 68: No 5 Volts To Throttle Position Sensor
  • DTC Test No. 69: EATX Controller DTC Present
  • DTC Test No. 70: Target Idle Not Reached
  • DTC Test No. 71: High Speed Radiator Fan Control Relay Circuit
  • DTC Test No. 72: 5 Volts Supply Output Too Low
  • DTC Test No. 73: Fuel Level Sending Unit Volts Too Low
  • DTC Test No. 74: Fuel Level Sending Unit Volts Too High
  • DTC Test No. 75: Fuel Level Unit No Change Over Miles
  • DTC Test No. 76: Stoplight Switch Circuit
  • DTC Test No. 77: Battery Temperature Sensor Voltage Too Low
  • DTC Test No. 78: Battery Temperature Sensor Voltage Too High
  • DTC Test No. 79: Left Bank Upstream Ho2S Shorted To Ground
  • DTC Test No. 80: Left Bank Downstream Ho2S Shorted To Ground
  • DTC Test No. 81: Intermittent Loss Of CMP Or CKP
  • DTC Test No. 82: EVAP System Small Or Large Leak Detected
  • DTC Test No. 83: Right Bank Catalytic Converter Efficiency Failure
  • DTC Test No. 84: Right Bank Upstream Ho2S Shorted To Ground
  • DTC Test No. 85: Right Bank Downstream Ho2S Shorted To Ground
  • DTC Test No. 86: LDP Solenoid Electrical Malfunction
  • DTC Test No. 87: LDP Switch/Mechanical Fault
  • DTC Test No. 88: Misfire Adaptive Numerator At Limit
  • DTC Test No. 89: Evaporative Emission System Blockage Detected
  • DTC Test No. 90: Slow Left Bank Upstream Ho2S During Catalyst Monitor
  • DTC Test No. 91: Slow Right Bank Upstream Ho2S During Catalyst Monitor
  • DTC Test No. 92: High Speed Radiator Fan Ground Control Relay Circuit
  • Test NTC-1: No Trouble Code Test Menu
  • Test NTC-2: Communication With Scan Tool Is Not Possible
  • Test NTC-3: Scan Tool Communication With Pcm Is Not Possible
  • Test NTC-4: Mil Does Not Illuminate Right After Ignition Is Turned On
  • Test NTC-5: Mil Remains On All The Time
  • Test NTC-6: Engine Cranks But Will Not Start
  • Test NTC-7: Engine Starts & Dies
  • Test NTC-8: Hard Starting
  • Test NTC-9: Unstable Idle (Rough Or Hunting)
  • Test NTC-10: Idle Speed Is High
  • Test NTC-11: Idle Speed Is Low
  • Test NTC-12: Engine Stalls When Cold
  • Test NTC-13: Engine Stalls When Hot
  • Test NTC-14: Engine Stalls When Accelerating
  • Test NTC-15: Engine Stalls When Decelerating
  • Test NTC-16: Hesitation, Sag Or Stumble
  • Test NTC-17: Acceleration Shock
  • Test NTC-18: Deceleration Shock
  • Test NTC-19: Poor Acceleration
  • Test NTC-20: Surge
  • Test NTC-21: Knocking
  • Test NTC-22: Dieseling
  • Test NTC-23: High Co & HC When Idling
  • Test NTC-24: Radiator Fan & Condenser Fan Inoperative
  • Test NTC-25: Power Supply & Ignition Switch (IG) System
  • Test NTC-26: Fuel Pump System
  • Test NTC-27: Park/Neutral Position (PNP) Switch Circuit
  • Test NTC-28: A/C Switch & A/C Clutch Relay System
  • Test NTC-29: Power Steering Pressure (PSP) Switch System
  • Test NTC-30: Ignition System Circuit
  • Test NTC-31: Engine Will Not Start (No Internal Combustion)
  • Test NTC-32: Scan Tool Inspection Procedure When Incomplete Combustion Occurs
  • Test NTC-33: Engine Idle Hunting Occurs
  • Test NTC-34: Idle Speed Is Unstable
  • Test NTC-35: Engine Stalls When Engine Is Warm & Idling
  • Test NTC-36: Engine Hesitates, Stumbles Or Has Poor Acceleration
  • Test NTC-37: Inspection Procedure When Surge Occurs
  • Test NTC-38: Fuel Pump Circuit
  • Test NTC-39: Fuel Pump Drive Control Circuit
  • Test NTC-40: Engine Coolant Temperature Sensor Circuit
  • Test NTC-41: Intake Air Temperature Sensor Circuit
  • Test NTC-42: Map Sensor Circuit
  • Test NTC-43: Upstream Ho2S Circuit
  • Test NTC-44: Downstream Ho2S Circuit
  • Test NTC-45: Throttle Position (TP) Sensor Circuit
  • Test NTC-46: Ignition Coil & Ignition Power Transistor Circuit
  • Test NTC-47: Vehicle Speed Sensor & Speedometer Circuit
  • Test NTC-48: Speedometer
  • Test NTC-49: Readiness Test
  • Test NTC-50: Readiness Test Aids
• Actuation, Inputs, Outputs & Sensor Read Tests
  • Actuator Tests
  • Input State Tests
  • Output State Tests
  • Sensor Read Tests