Engine Control - Symptom Related Diagnostic Procedures

• Checking On/Off Selector Switch, Brake And Clutch Valves (B4204T2 CVVT; 2000)
  • Checking the ON/OFF selector switch, brake and clutch valves
    • Terminal
      • Connecting the Volvo Scan Tool (ST)
    • Checking the response code for the ON/OFF switch
    • Checking the response code for the brake valves
    • Checking brake valves
    • Checking for a short-circuit
    • Checking the response code for the clutch valve
    • Checking response code 3-1-1
    • Checking the clutch valve
    • Adjusting the clutch valve
    • Checking the voltage to the selector switch
    • Checking for an open-circuit
    • Checking the selector switch
    • Checking the connector for the selector switch
    • Replacing the component
    • Checking the power supply to the brake valve
    • Checking the cable between the selector switch and the brake valve
    • Fault-tracing information
    • Adjusting the brake valve
    • Checking the power supply for the clutch valve
    • Checking the cable between the brake valve and the clutch valve
    • Checking the power supply for the control module
    • Checking the cable between the brake valve/clutch valve and the control module
    • Checking the control module connectors
    • Brake pedal vacuum valve, replacement
      • Replacement of brake pedal vacuum valve
    • Information
      • Fault-tracing information
  • Fault-tracing information
• Checking On/Off Selector Switch, Brake And Clutch Valves (B4204T3 (Ca) (Us); 2001-2003)
  • Checking the ON/OFF selector switch, brake and clutch valves
  • Fault-tracing information
• Checking On/Off Selector Switch, Brake And Clutch Valves (B4204T4; 2003-2004)
  • Checking the ON/OFF selector switch, brake and clutch valves
  • Fault-tracing information
• Checking Park/Neutral Position Switch (PNP) (Automatic Transmission) (B4204T2 CVVT; 2000)
  • Checking the Park/Neutral position (PNP) switch (automatic transmissions)
    • Terminal
      • Connecting the Volvo Scan Tool (ST)
    • Checking the response code
    • Checking response code 3-1-1
    • Checking the function of the Park/Neutral position (PNP) switch
    • Checking components
    • Checking the power supply to the control module
    • Checking for an open-circuit
    • Checking the control module connectors
    • Fault-tracing information
    • Replacing the component
    • Information
      • Fault-tracing information
  • Fault-tracing information
• Checking Park/Neutral Position Switch (PNP) (Automatic Transmission) (B4204T3 (Ca) (Us); 2001-2003)
  • Checking the Park/Neutral position (PNP) switch (automatic transmissions)
  • Fault-tracing information
• Checking Park/Neutral Position Switch (PNP) (Automatic Transmission) (B4204T4; 2003-2004)
  • Checking the Park/Neutral position (PNP) switch (automatic transmissions)
  • Fault-tracing information
• Checking Resume Switch (B4204T2 CVVT; 2000)
  • Checking the RESUME switch
    • Terminal
      • Connecting the Volvo Scan Tool (ST)
    • Checking the response code
    • Checking response code 3-1-1
    • Checking other response codes
    • Checking the voltage to the selector switch
    • Checking for an open-circuit
    • Checking the selector switch
    • Checking the connector for the selector switch
    • Replacing the component
    • Checking the power supply for the control module
    • Checking for a short-circuit
    • Checking the cable between the selector switch and the control module
    • Checking the control module connectors
    • Fault-tracing information
    • Information
      • Fault-tracing information
  • Fault-tracing information
• Checking Resume Switch (B4204T3 (Ca) (Us); 2001-2003)
  • Checking the RESUME switch
  • Fault-tracing information
• Checking Resume Switch (B4204T4; 2003-2004)
  • Checking the RESUME switch
  • Fault-tracing information
• Checking Set- Switch (B4204T2 CVVT; 2000)
  • Checking the SET- switch
    • Terminal
      • Connecting the Volvo Scan Tool (ST)
    • Checking the response code
    • Checking response code 3-1-1
    • Checking other response codes
    • Checking the voltage to the selector switch
    • Checking for an open-circuit
    • Checking the selector switch
    • Checking the connector for the selector switch
    • Replacing the component
    • Checking the power supply for the control module
    • Checking for a short-circuit
    • Checking the cable between the selector switch and the control module
    • Checking the control module connectors
    • Fault-tracing information
    • Information
      • Fault-tracing information
  • Fault-tracing information
• Checking Set- Switch (B4204T3 (Ca) (Us); 2001-2003)
  • Checking the SET- switch
  • Fault-tracing information
• Checking Set- Switch (B4204T4; 2003-2004)
  • Checking the SET- switch
  • Fault-tracing information
• Checking Set+ Switch (B4204T2 CVVT; 2000)
  • Checking the SET+ switch
    • Terminal
      • Connecting the Volvo Scan Tool (ST)
    • Checking the response code
    • Checking response code 3-1-1
    • Checking other response codes
    • Checking the voltage to the selector switch
    • Checking for an open-circuit
    • Checking the selector switch
    • Checking the connector for the selector switch
    • Replacing the component
    • Checking the power supply for the control module
    • Checking for a short-circuit
    • Checking the cable between the selector switch and the control module
    • Checking the control module connectors
    • Fault-tracing information
    • Information
      • Fault-tracing information
  • Fault-tracing information
• Checking Set+ Switch (B4204T3 (Ca) (Us); 2001-2003)
  • Checking the SET+ switch
  • Fault-tracing information
• Checking Set+ Switch (B4204T4; 2003-2004)
  • Checking the SET+ switch
  • Fault-tracing information
• Checking The Brake Light Switch (B4204T2 CVVT; 2000)
  • Checking the stop (brake) lamp switch
    • Terminal
      • Connecting the Volvo Scan Tool (ST)
    • Checking the response code
    • Checking response code 3-1-1
    • Checking the stop (brake) lamp
    • Checking fuses
    • Checking for a short-circuit
    • Checking the 30-supply to the fuse
    • Checking for an open-circuit
    • Checking the voltage to the stop (brake) lamp switch
    • Checking the stop (brake) lamp switch
    • Replacing the component
    • Checking the stop (brake) lamp bulbs
    • Checking the power supply to the control module
    • Checking the resistance in the signal cable
    • Checking the control module connectors
    • Fault-tracing information
    • Brake light switch, replacement
      • Replacement of brake light switch
    • Information
      • Fault-tracing information
• Checking The Brake Light Switch (B4204T3 (Ca) (Us); 2001-2003)
  • Checking the stop (brake) lamp switch
• Checking The Brake Light Switch (B4204T4; 2003-2004)
  • Checking the stop (brake) lamp switch
• Checking The Vacuum System (B4204T2 CVVT; 2000)
  • Checking the vacuum system
    • Terminal
      • Connecting the Volvo Scan Tool (ST)
    • Checking the ground lead. Checking the power supply
    • Checking the function of the governor
    • Checking the cable for the governor
    • Checking for a short-circuit
    • Checking the power supply for the governor
    • Checking for an open-circuit
    • Checking the cable to the vacuum pump
    • Checking the voltage to the vacuum pump
    • Checking the resistance in the cable
    • Checking the governor
    • Checking for contact resistance and oxidation
    • Replacing the component
    • Checking the function of the vacuum pump
    • Checking that the vacuum system is air tight
    • Checking for leaks
    • Checking the vacuum pump
    • Checking brake valves
    • Fault-tracing information
    • Adjusting the brake valve
    • Checking components
    • Checking the clutch valve
    • Adjusting the clutch valve
    • Vacuum pump and regulator
      • Replacement of vacuum pump and regulator
    • Information
      • Fault-tracing information
  • Fault-tracing information
• Checking The Vacuum System (B4204T3 (Ca) (Us); 2001-2003)
  • Checking the vacuum system
  • Fault-tracing information
• Checking The Vacuum System (B4204T4; 2003-2004)
  • Checking the vacuum system
  • Fault-tracing information
• Replacement Of Control Module
• Replacement Of Selector Switch (Turn Indicator)
• Replacement Of Clutch Pedal Vacuum Valve