Engine Controls - Tests W/Codes - 4.3L TBI

• Introduction
• Model Identification
• Self-Diagnostic System
  • Notes
  • Engine Controls - Tests W/Codes - 4.3L TBI
    • Hard Failures
    • Intermittent Failures
  • Diagnostic Procedure
  • Reading Trouble Codes
  • Trouble Code Definition
  • Hard Or Intermittent Trouble Code Determination
  • Clearing Trouble Codes
  • ECM/Pcm Location
  • Diagnostic Materials
    • Diagnostic Aids
    • Field Service Mode Check
  • Special Tools (Diagnostic)
  • Scan Tester Usage
  • Scan Data
• Pcm/BCM Code Charts
  • Notes
  • Code 13, Open Oxygen (O2) Sensor Circuit
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
  • Code 14, Coolant Temp Sensor, Signal Voltage Low
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Diagnostic Aids
  • Code 15, Coolant Temp Sensor, Signal Voltage High
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
  • Code 21, Throttle Position Sensor, Signal Voltage High
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
  • Code 22, Throttle Position Sensor, Signal Voltage Low
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
  • Code 23, Mat Sensor Signal Voltage High
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
  • Code 24, Vehicle Speed Sensor (VSS)
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Diagnostic Aids
  • Code 25, Mat Sensor Signal Voltage Low
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Diagnostic Aids
  • Code 32, EGR System Error (1 Of 3)
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Test Number 4)
    • Test Number 5)
  • Code 32, EGR System Error (2 Of 3)
    • Notes
    • Test Number 6)
    • Test Number 7)
    • Test Number 8)
    • Test Number 9)
  • Code 32, EGR System Error (3 Of 3)
    • Notes
    • Test Number 6)
    • Test Number 7)
  • Code 33, Map Sensor, Signal Voltage High
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Diagnostic Aids
  • Code 34, Map Sensor, Signal Voltage Low
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
  • Code 35, IAC Idle Speed Error, W/O Tech 1
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
    • System Too Lean
    • System Too Rich
    • Throttle Body
    • IAC Valve Connections
    • PCV Valve
  • Code 35, IAC Idle Speed Error, Using Tech I
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Diagnostic Aids
    • System Too Lean
    • System Too Rich
    • Throttle Body
    • IAC Valve Connections
    • PCV Valve
  • Code 42, Est Circuit Open Or Grounded
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Test Number 4)
    • Test Number 5)
    • Diagnostic Aids
  • Code 43, ESC Error
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Test Number 4)
    • Test Number 5)
    • Test Number 6)
    • Test Number 7)
    • Diagnostic Aids
  • Code 43, ESC Error, W/O ESC Module
    • Notes
    • Test Number 1)
    • Test Number 2)
    • Test Number 3)
    • Diagnostic Aids
  • Code 44, Lean Exhaust Indication
    • Notes
    • Test Number 1)
    • Diagnostic Aids
    • O2 Sensor Wire
    • Fuel Contamination
    • Fuel Pressure
    • Exhaust Leaks
    • Misfire Or Stall
  • Code 45, Rich Exhaust Indication
    • Notes
    • Test Number 1)
    • Diagnostic Aids
    • Fuel Pressure High
    • Ignition Ground
    • Evaporative Fuel Canister
    • MAP Sensor
    • TPS
    • O2 Sensor Contamination
    • EGR Problem
  • Code 51, Faulty Prom/Mem-Cal
  • Code 52, Faulty Cal-PAK
  • Code 54, Fuel Pump Voltage Low
  • Code 55, ECM Error
• Summary