Heater Troubleshooting; Damper Positions - Toyota Hilux Surf 1993 Owner's Manual

Problem
HEATER fuse blown
Blower does not
work when fan
switch is on
Heater relay faulty
Heater blower switch faulty
Heater blower resistor faulty
Heater blower motor faulty
Wiring or ground faulty
Incorrect tempera–
Control cables broken or adjustment
ture output
faulty
Heater hoses leaking or clogged
Water valve faulty
Air dampers broken
AIR CONDITIONING SYSTEM
Troubleshooting
Possible cause

Damper Positions

– Heater
Remedy
Replace fuse and check for short
Check relay
Check switch
Check resistor
Check motor
Repair as necessary
Check cables
Replace hose
Replace valve
Repair dampers
AC–35
Page
AC–37
AC–37
AC–37
AC–37
AC–36