Q: 2002 isuzu rodeo blower motor not working. Appears to not have ground. when grounded to chasis I get the motor to run but only in

asked by on June 18, 2017

The blower is not blowing air on cold or hot. I can hear the AC compressor cycling but there is no air blowing. Checked all the fuses and they are good. Opened up passenger dash. Unplugged blower motor, turned car to ACC put meter across plug, no voltage. Left red to the Positive side and grounded to chasis, viola' 12.4 volts. Plug back into blower motor, added an external connect to ground at back of connector, turned the ignition to ACC blower motor runs in high no matter what the setting is or regardless if it is off. Don't know what else to check.

My car has 45000 miles.
My car has an automatic transmission.

Electrical components are not working Inspection $79.99 - $89.99 Get a Quote

The ground in your application is probably switched on and off through a controller assembly which also varies the fan speed. Obviously the motor is working when you apply full battery voltage but there is a controller in the circuit which is malfunctioning. If you need the assistance of a Mechanic, dispatched by YourMechanic right to your location, to identify the faulty controller, please request an electrical component/circuit diagnostic and the responding certified mechanic will resolve this for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Both High Beam and Low Beam Not Working

It's possible that your headlight switch is the source of the problems you're having; (especially if it's all headlights that are not working correctly). It's also possible that you may have an exposed wire somewhere creating a short in the...

No crank no start Key turns

when you have multiple issues like this, a good place to start is by checking the battery voltage. When the battery voltage drops off, the various modules on your car can do all sorts of spooky things. Then try starting...

Coolant level dropping rapidly

If the coolant level keeps dropping there is either an internal or external leak. Leaks are typically found by simple pressure testing of the cooling system. Engine coolant can leak externally through a hose, radiator, water pump, etc. or internally...

hello

If you are having a problem with your vehicle, please describe the question in detail and we are happy to assist in any way we can.

The clutch pedal has lost all tension what should i check?

The clutch pedal going all the way to the floor without disengaging the clutch is caused by a failure in the hydraulic clutch linkage. There is a clutch master cylinder (and reservoir) and a slave cylinder down underneath near the...

My car will not move at all in any gear. It starts up fine but does not move in gear.

Hi there. Check the shifting cable from the shifter housing to the transmission and see if its out of adjustment. A shifter cable that is out of adjustment will cause the shifter on the transmission to be out of sync...

Occasional difficulty reversing

Manual transmissions use synchronizers as buffers between the engagement of the gears. When a manual is difficult to get into reverse, it is either due to the reverse lockout failing or the reverse synchro being worn and taking a few...

My car is sputtering and when I drive it’s louder and then it was and more shaky. And when I go to speed up it has a hard time.

If the vehicle has less power and does not run correct and seems louder than it should can be caused by the air filter clogged or the catalyst is clogged. It can even be loss of fuel pressure and clogged...

Car stalling and jumping.

This car has a transmission that has solenoids that control the shifting and sometimes the solenoids or speed sensor causes erratic shifting. The vehicle would have to be tested to see what codes are in the computer and diagnose the...

Related articles

Isuzu Certified Pre-Owned (CPO) Car Program
Drivers Drivers who have been shopping for a used Isuzu vehicle may have already considered a Certified Pre-Owned, or CPO, vehicle. CPO programs allow owners of used cars to drive with confidence, knowing that their vehicle has been inspected and...
Understanding the Isuzu Oil Life Monitor System and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Isuzu Oil Life Monitor system indicates when and what service your car needs.
P0865 OBD-II Trouble Code: TCM Communication Circuit Low
P0865 means there is an issue with a communication circuit in the traction control module, likely due to a defective ON/OFF switch.