Engine Controls - Tests W/Codes

• Introduction
  • Notes
  • System Diagnostics
    • Notes
    • Malfunction Indicator Light (MIL)
    • On-Board Diagnostics
    • Hard Failures
    • Intermittent Failures
• Self-Diagnostic System
  • Service Precautions
  • Diagnostic Procedure
  • Visual Inspection
  • Retrieving Diagnostic Trouble Codes
    • Notes
    • Using Malfunction Indicator Light (MIL)
    • Using Scan Tool
  • Clearing Diagnostic Trouble Codes
• Inactive Trouble Code Condition
• Fuel Pressure Release
• Connector Identification
• Self-Diagnostic Tests
  • Notes
  • Test DTC - Checking System For Diagnostic Trouble Codes
  • Test TC-1A - No Cam Signal At Pcm
  • Test TC-5A - Charging System Voltage Too Low
  • Test TC-6A - Charging System Voltage Too High
  • Test TC-6B - Charging System Voltage Too High
  • Test TC-10A - Auto Shutdown Relay Control Circuit
  • Test TC-11A - Generator Field Not Switching Properly
  • Test TC-15A - Speed Control Power Relay & Solenoid Circuits
  • Test TC-15B - Speed Control Power Relay & Solenoid Circuits
  • Test TC-16A - A/C Clutch Relay Circuit
  • Test TC-17A - EGR Solenoid Circuit
  • Test TC-18A - EVAP Purge Solenoid Circuit
  • Test TC-19E - Injector No. 3 Control Circuit
  • Test TC-20A - Injector No. 2 Control Circuit
  • Test TC-21A - Injector Control Circuit
  • Test TC-21F - Injector No. 1 Control Circuit
  • Test TC-25A - Idle Air Control Motor Circuits
  • Test TC-25B - Idle Air Control Motor Circuits
  • Test TC-25C - Idle Air Control Motor Circuits
  • Test TC-25D - Idle Air Control Motor Circuits
  • Test TC-25E - Idle Air Control Motor Circuits
  • Test TC-26A - Throttle Position Sensor Voltage Low
  • Test TC-27A - Throttle Position Sensor Voltage High
  • Test TC-30A - ECT Temperature Sensor Voltage Too Low
  • Test TC-31A - ECT Sensor Voltage Too High
  • Test TC-32A - Upstream O2 Sensor Stays At Center
  • Test TC-35A - No Vehicle Speed Sensor Signal
  • Test TC-35B - No Vehicle Speed Sensor Signal
  • Test TC-35C - No Vehicle Speed Sensor Signal
  • Test TC-36A - Map Sensor Voltage Too Low Or No 5 Volts To Map
  • Test TC-37A - Map Sensor Voltage Too High
  • Test TC-39A - No Change In Map Sensor From Start To Run
  • Test TC-40A - No Crank Reference Signal At Pcm
  • Test TC-40B - No Crank Reference Signal At Pcm
  • Test TC-41A - Ignition Coil No. 3 Primary Circuit
  • Test TC-42A - Ignition Coil No. 2 Primary Circuit
  • Test TC-43A - Ignition Coil No. 1 Primary Circuit
  • Test TC-44A - No ASD Relay Output Voltage At Pcm
  • Test TC-46A - EGR System Failure
  • Test TC-57A - Intake Air Temperature Sensor Voltage Low
  • Test TC-58A - Intake Air Temperature Sensor Voltage High
  • Test TC-59B - Knock Sensor Circuit
  • Test TC-61A - Injector No. 4 Control Circuit
  • Test TC-62A - (Left) Upstream O2 Sensor Shorted To Voltage
  • Test TC-65A - Right Upstream O2 Sensor Stays At Center
  • Test TC-66A - Right Upstream O2 Sensor Shorted To Voltage
  • Test TC-69E - Injector No. 5 Control Circuit
  • Test TC-70A - Injector No. 6 Control Circuit
  • Test TC-83A - Knock Sensor No. 2 Circuit
  • Test TC-86A - Speed Control Switch Always High
  • Test TC-86B - Speed Control Switch Always High
  • Test TC-87A - Speed Control Switch Always Low
  • Test TC-88A - Manifold Tune Valve Solenoid Circuit
  • Test TC-88B - Manifold Tune Valve Solenoid Circuit
  • Test TC-90A - A/C Pressure Sensor Volts Too High
  • Test TC-91A - A/C Pressure Sensor Volts Too Low
  • Test TC-92A - Low Speed Fan Control Relay Circuit
  • Test TC-93A - High Speed Fan Control Relay Circuit
  • Test TC-96A - No CCD Messages From TCM
  • Test TC-97A - No CCD Message From Control Module
  • Test TC-101A - Fuel Pump Relay Control Circuit
  • Test TC-102A - (Left) Upstream O2 Sensor Slow Response
  • Test TC-103A - (Left) Upstream O2 Sensor Heater Failure
  • Test TC-105A - (Left) Downstream O2 Sensor Heater Failure
  • Test TC-106A - Multiple Cylinder Misfire
  • Test TC-107A - Cylinder No. 1-6 Misfire (V6)
  • Test TC-112A - Catalytic Converter Efficiency Failure
  • Test TC-113A - EVAP Purge Flow Monitor Failure
  • Test TC-113B - EVAP Purge Flow Monitor Failure
  • Test TC-114A - Park/Neutral Switch Failure
  • Test TC-118A - Fuel System Rich
  • Test TC-118B - Fuel System Rich
  • Test TC-119A - Fuel System Lean
  • Test TC-119B - Fuel System Lean
  • Test TC-120A - Right Bank Fuel System Rich
  • Test TC-120B - Right Bank Fuel System Rich
  • Test TC-121A - Right Bank Fuel System Lean
  • Test TC-121B - Right Bank Fuel System Lean
  • Test TC-122A - Right Upstream O2 Sensor Slow Response
  • Test TC-124A - Right Upstream O2 Sensor Heater Failure
  • Test TC-125A - Right Downstream O2 Sensor Heater Failure
  • Test TC-126A - (Left) Downstream O2 Sensor Shorted To Voltage
  • Test TC-127A - Right Downstream O2 Sensor Shorted To Voltage
  • Test TC-128A - Closed Loop Temp Not Reached
  • Test TC-129A - (Left) Downstream O2 Sensor Stays At Center
  • Test TC-130A - Right Downstream O2 Sensor Stays At Center
  • Test TC-132A - TPS Voltage Does Not Agree With Map
  • Test TC-133A - Timing Belt Skipped One Tooth Or More
  • Test TC-135A - No 5 Volts To Map Sensor
  • Test TC-138A - Target Idle Not Reached
  • Test TC-138B - Target Idle Not Reached
  • Test TC-139A - High Speed Radiator Fan Control Relay
  • Test TC-145A - Vacuum Leak Found (IAC Fully Seated)
  • Test TC-146A - 5 Volt Supply Output Too Low
  • Test TC-146B - 5-Volt Supply Output Too Low
  • Test TC-149A - Fuel Level Sending Unit Volts Too Low
  • Test TC-150A - Fuel Level Sending Unit Volts Too High
  • Test TC-151B - Fuel Level Unit No Change Over Miles
  • Test TC-152A - Brake Switch Sense Circuit
  • Test TC-155A - (Left) Upstream O2S Voltage Shorted To Ground
  • Test TC-156A - (Left) Downstream O2S Voltage Shorted To
  • Test TC-157A - Intermittent Loss Of CMP Or CKP
  • Test TC-157B - Intermittent Loss Of CMP Or CKP
  • Test TC-157C - Intermittent Loss Of CMP Or CKP
  • Test TC-180A - Right Catalytic Converter Efficiency Failure
  • Test TC-181A - Right Upstream O2S Voltage Shorted To Ground
  • Test TC-182A - Right Downstream O2S Voltage Shorted To Ground
  • Test TC-183A - Leak Detection Pump Solenoid Circuit
  • Test TC-184A - Leak Detection Pump Switch Or Mechanical Fault
  • Test TC-186A - Misfire Adaptive Numerator At Limit
  • Test NTC-1A - No Trouble Codes (NTC) Tests
    • No Trouble Code Complete Test
    • No Trouble Code Quick Individual Test
    • No Trouble Code Quick Symptom Test
  • Test NTC-2A - Checking Secondary Ignition & Timing
  • Test NTC-3D - Checking Fuel Pressure
  • Test NTC-3E - Checking Fuel Pressure
  • Test NTC-4A - Checking Coolant Sensor Calibration
  • Test NTC-5A - Checking Throttle Position Sensor
  • Test NTC-6A - Checking Map Sensor
  • Test NTC-7A - Checking Oxygen Sensor Switching
  • Test NTC-7B - Checking Oxygen Sensor Switching
  • Test NTC-8A - Checking Oxygen Sensor Heater
  • Test NTC-9A - Checking Idle Air Control Motor
  • Test NTC-10A - Checking Park/Neutral Position Switch
  • Test NTC-11A - Checking Pcm Power & Grounds
  • Test NTC-12A - Checking Evaporative Emissions Systems
  • Test NTC-13A - Checking EGR System
  • Test NTC-14A - Checking Engine Vacuum
  • Test NTC-15A - Checking Intake Air Temperature Sensor
  • Test NTC-16A - Checking Timing Belt Adjustment
  • Test NTC-17B - Checking Minimum Idle Airflow
  • Test NTC-18A - Checking Engine Mechanical Systems
  • Test NS-1A - Qualifying A No Start Condition
  • Test NS-2A - Checking Fuel System
  • Test NS-3A - Checking Engine Mechanical Systems
  • Test NS-4B - Repairing High Fuel Pressure
  • Test NS-4D - Repairing Low Fuel Pressure
  • Test NS-4E - Repairing High Fuel Pressure
  • Test NS-5A - Checking Fuel Pump
  • Test NS-6A - Repairing No Response Condition
  • Test NS-6B - Repairing No Response Condition
  • Test NS-6C - Repairing No Response Condition
  • Test NS-7A - Checking Idle Air Control Motor Operation
  • Test NS-8A - Repairing A Start & Stall Condition
  • Test NS-9A - Repairing A No Crank Condition
  • Test NS-9B - Repairing A No Crank Condition
  • Test VER-1A - No Start Verification
  • Test VER-2A - Road Test Verification
  • Test VER-3A - Charging Verification
  • Test VER-4A - Speed Control Verification
  • Test VER-5A - Road Test For OBD-II Trouble Codes