The heater fan in my 2003 rodeo isn't blowing. I checked the two fuses 15A fuses under the hood and they look good. What else could it be? BTW this blower was replaced under warranty a few years ago.

for the heater fan-yes the fuse and fusible link are under the hood
for the cig lighter-no only the 15A cig/radio fuse power it

usa car, not Holden made. my 2nd post here same car same issue.
heater blower, motor.
dead,
hot wire blower, work now?
got 12vdc to blower power pins on HIGH?
yes, no.
this is first way before ripping dash asunder...
the motor is DC, and not AC.

the job here is to see.
1: lost power, Fuse, wires. learn to use a voltmeter, its easy.
2: controls failing?
3: motor dead.
in that order. or waste 8hours, labor for nothing.

now ill read the schematic for you, on alldata.com
ok the real hit list not BS, or bsa

1: cb15 blown, marked, electr ig, in dash box.
2:EB16 main 100am fuse blown that feeds
3: A/C heater relay bad.
4: now the tricky part, isuzu BS to the max, the run 2 fuses in parallel now. here, called EB5 and 6 (EB= engine bay box)
then power goes to motor +
5:motor minus wire goes to the switch fuse. and on high goes to ground like a shot.
seen here. 5 fuses total, a world record for sorts.
warning it love to blow fuse 5 or 6, and if you try to run it on one fuse the other glow BAM pronto. real junk here... by isuzu.
15a + 15a fuse = 30amps this silly way, and issues.

got 12vdc to top pin on motor? above.
got 12vdc to bottom pin of motor if yes, the switch is failing
remove blower resist and check all paths for 0 ohms.
if not ,zero its bad and for sure that thermfuse there.

most likely a fuel pump that has taken a dump. isuzu uses typical crappy gm/ac delco/dephi parts. you would need to drop the fuel tank to replace the fuel pump.

rodeo or rodeo SPORT?
2.2 or 3.2 engine> not even a cylinder count....
i wish all problems were this simple. (easy with ammeter)
the load is SHORTEd, the fuse saved the fire.
x2 all above answers
but keep in mind some fuses run more that one thing, ill check.

20amp fuse (no label) no engine option stated, must be the 6ve1, v6 twin cam.
fuel systems vary by (engine type)
not the 3.5L vin Y engines. 2.2 or 3.2L>?
fuse EB12, Engine bay fuse blows, 20a, fuel pump.

so pull these conn.
H-15 first
then if ok, (no blow)
H-25: if not blow now the pump is shorted
or the wire from H25 to F1 is ground to the frame.
wire inspections are first. on that path.
i use a EB12 , circuit breaker and mag ammeter to find this fast.
ask.



2.2L

yes there is a fuse and it should be behind a panel in the lower dash near the drivers area..the fan is located under the hood way back up behind the engine on the passengers side and kind of hard to reach..good luck

Hi, since the whole panel is dead, I would check the 40 amp HVAC BLOWER fuse under the hood. Please get back to me if either that isn't the problem or the fuse blows again.

there's a short somewhere causing that amperage to go up

I would check your blower motor. That sounds like the problem.

Check the following fuses:
10 amp GAUGE under the dash, and the 40 amp HEATER under the hood.
If both fuses are good, I suspect that you may either have a bad fan switch or a bad heater fan motor. The switches are rare to fail, I would suspect the heater motor first. Please try this: Turn the key on; turn the fan switch to high. Look under & behind the glovebox, for the bottom of the heater fan motor. Round thing with 3 screws holding it to the heater box. Using a small hammer, or something that you can tap with, tap on the bottom of the heater fan motor. You just may jar the motor enough to make it run. If it comes back on, you may need to replace it at some point in the near future. Worked for me quite a few times. Try that, repost to me what happens. Hope this helps.

check the fuse box go by a fuse at a gas station and replace the one that says fan and it may fix the problem