Engine Controls - Tests W/Codes

• Introduction
• Self-Diagnostic System
  • Hard Failures
  • Intermittent Failures
  • Retrieving Codes
    • Normal Mode
    • Test Mode
    • Momentary Interruption Test
  • Trouble Code Definition
  • Clearing Codes
  • Ecu Location
• Diagnostic Code Charts
  • Code 12 - Rpm Signal
  • Code 13 - Rpm Signal
  • Code 14 - Ignition Signal
  • Code 16 - ECT Control Signal
  • Code 21 & 28 - Main Oxygen Sensor Circuit
  • Code 22 - Water Temperature Sensor Signal
  • Code 24 - Intake Air Temperature Sensor Signal
  • Code 25 & 26 - Air Fuel Ratio Malfunction
  • Code 27 - Sub-Oxygen Sensor CKT (Es300 CALIF., SC300 Federal)
  • Code 31 - Low Airflow Meter Voltage
  • Code 32 - High Airflow Meter Voltage (SC300)
  • Code 35 - High Altitude COMPENSATOR (HAC) Sensor
  • Code 41 - Throttle Position Sensor (TPS)
  • Code 42 - Vehicle Speed Sensor (VSS) Signal
  • Code 43 - Starter Signal
  • Code 47 - Sub-Throttle Position Sensor (TPS) Signal
  • Code 51 - Switch Condition Signal
  • Code 52, 53 & 55 - Knock Sensor Signal
  • Code 71 - EGR System Malfunction (Es300 CALIF., SC300 Federal)
  • Code 78 - Fuel Pump Control Circuit (SC300)
• Summary