Heater blower wont engage - 1999 Isuzu VehiCROSS

I have the same problem with my '99 Vehicross. It used to work intermittently, but now it never works.

The first step would be to check the fuses. They are on the driver's side, behind a removable panel. There is a chart that shows what each fuse is for, but it does not identify the fan fuse But If they all check out good, that will eliminate he fuse as the problem.

The power to the fan comes from the ignition switch wiring harness, and it should be a blue wire. My problem started after I did something with the ignition switch, so when I get the time, that's where I will focus my attention. You'll have to pull off the plastic shrouding to access it. I don't have a wiring diagram, but I assume that the blue wire goes to the heater control switch. If you have power to the blue wire, then it could be in the heater control unit or the fan itself.

This should give you some places to start looking. I hope it's something simple like a loose wire connection. Good luck.


I have the same problem with my '99 Vehicross. It used to work intermittently, but now it never works.

The first step would be to check the fuses. They are on the driver's side, behind a removable panel. There is a chart that shows what each fuse is for, but it does not identify the fan fuse But If they all check out good, that will eliminate he fuse as the problem.

The power to the fan comes from the ignition switch wiring harness, and it should be a blue wire. My problem started after I did something with the ignition switch, so when I get the time, that's where I will focus my attention. You'll have to pull off the plastic shrouding to access it. I don't have a wiring diagram, but I assume that the blue wire goes to the heater control switch. If you have power to the blue wire, then it could be in the heater control unit or the fan itself.

This should give you some places to start looking. I hope it's something simple like a loose wire connection. Good luck.