Overheating switch and cable harness



  • Disconnect battery ground strap, disconnect cables at dual relay and pull out of engine compartment, then remove heater.

  • Turn tensioner on overheating switch to one side, then take overheating switch and cap out of housing.

  • Disconnect cables from glow-spark plug, ignition coil, fuel pump and thermo switch.

  • Remove grommet on combustion air blower motor socket and disconnect push-on terminals.

  • Open clamp for cable harness on heater and remove harness.


  • Connect cables to heater units according to wiring diagram and secure cable harness with clamp.

  • Carefully insert overheating switch and cap into housing and secure with tensioner.

  • Install heater and pull cable harness through grommet into engine compartment. Connect cables to dual relay according to wiring diagram.

  • Connect battery ground strap.