Dodge Journey: Diagnosis and Testing
BLOWER MOTOR
WARNING: Disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. Failure to take the proper precautions may result in accidental airbag deployment and possible serious or fatal injury.
NOTE: The blower motor is supplied with a 12V feed from the TIPM whenever the ignition switch is in RUN. Due to an open circuit condition within the blower motor control switch the TIPM is UNABLE to detect an OPEN circuit for the blower motor.
To determine if an open condition exists within the blower motor circuit wiring, it is necessary to disconnect the negative battery cable and check for continuity within the blower motor circuits using an ohmmeter.
OPERATION
Possible causes of an inoperative blower motor include:
- Open fuse
- Inoperative blower motor resistor
- Inoperative blower motor switch
- Inoperative blower motor
- Inoperative blower motor circuit wiring or wire harness connectors
NOISE
To determine if the blower motor is the source of the noise, simply switch the blower motor from Off to On. To verify that the blower motor is the source of the noise, unplug the blower motor wire harness connector and operate the heater-A/C system. If the noise goes away, possible causes include:
- Foreign material on fresh air inlet screen
- Foreign material in blower wheel
- Foreign material in HVAC housing
- Improper blower motor mounting
- Deformed or damaged blower wheel
- Worn blower motor bearings or brushes
VIBRATION
Possible causes of a blower motor vibration include:
- Improper blower motor mounting
- Foreign material in blower wheel
- Deformed or damaged blower wheel
- Worn blower motor bearings
Description, Operation
DESCRIPTION
Fig. 139: Blower Motor-PM
The blower motor (1) is used to control the velocity of air moving through
the HVAC housing by spinning the
blower wheel (2) within the HVAC air inlet hous ...
Removal, Installation
REMOVAL
WARNING: Disable the airbag system before attempting any steering
wheel, steering
column or instrument panel component diagnosis or service. Disconnect
and isolate the negati ...
See also:
Cylinder compression pressure test
The results of a cylinder compression pressure test can be utilized to
diagnose several engine malfunctions.
Ensure the battery is completely charged and the engine starter motor is in
good opera ...
Removal, Installation
REMOVAL
WARNING: To avoid serious or fatal injury on vehicles equipped
with airbags, disable
the Supplemental Restraint System (SRS) before attempting any steering
wheel, steering co ...
Installation
CLUTCH - FIXED DISPLACEMENT A/C COMPRESSOR
NOTE: Typical A/C compressor and clutch assembly shown in
illustrations.
Fig. 214: Clutch Coil & Snap Ring
1. Align the dowel pin on the bac ...