REMOVAL & INSTALLATION
Fig. Fig. 1 Inspecting the heater control assembly for resistance-Van
Fig. Fig. 2 Inspecting the heater control assembly for resistance-Cressida
Fig. Fig. 3 Pin connectors for resistance inspection of the air vent mode switch-Cressida
Disconnect the negative battery cable.
Remove the necessary instrument cluster in order to gain access to the vent control switch.
Remove the heater control cables. Remove the vent mode switch connector.
Check the continuity between the terminal at the vent mode position using an ohmmeter. If there is no continuity, replace the switch.
Installation is the reverse of the removal procedure.