-
Ground each of the heater fan switch 8P connector terminals individually in the following order: No. 4, 7, 8, and No. 2.
Does the blower motor run at progressively higher speeds?
|
YES
|
-
|
|
NO
|
-
|
Repair any open or cause of excessive resistance in the appropriate wires between the blower resistor and the heater fan switch.■
|
-
Turn the heater fan switch OFF and the ignition switch to LOCK (0).
-
Check the No. 57 (30 A) and the No. 10 (7.5 A) fuses in the under-dash fuse/relay box.
YES
|
-
|
|
NO
|
-
|
Replace the fuses, and recheck. If the fuses blow again, check for a short in the No. 57 (30 A) and No. 10 (7.5 A) fuses circuit.■
|
-
YES
|
-
|
|
NO
|
-
|
Replace the
blower motor relay
.■
|
|
|