Suzuki XL7 2007 Service Manual page 1861

Noise Diagnosis - Auxiliary Blower Motor
Step
Were you sent here from Symptoms or another diagnostic
table?
1
1. Sit inside the vehicle.
2. Close the vehicle doors and windows.
3. Turn ON the ignition, with the engine OFF.
2
4. Cycle the auxiliary blower motor through all of the speeds
and modes in order to determine where and when the
noise occurs.
Is a noise evident during auxiliary blower operation?
3 Does the noise vary with the auxiliary blower speed?
Inspect for excessive vibration at each auxiliary blower motor
4 speed by feeling the auxiliary blower case.
Is excess vibration present?
1. Remove the auxiliary blower motor. Refer to "Auxiliary
Blower Motor Replacement".
5
2. Inspect the auxiliary blower motor for deposits of foreign
material.
Did you find foreign material on the auxiliary blower motor?
Inspect the auxiliary blower motor for the following conditions:
• Cracked blades
6
• A loose impeller retainer
• Improper impeller alignment
Did you find any of these conditions?
Remove the foreign material.
7
Is the action complete?
Replace the auxiliary blower motor. Refer to "Auxiliary Blower
8 Motor Replacement".
Is the action complete?
Install the auxiliary blower motor. Refer to "Auxiliary Blower
9 Motor Replacement".
Is the action complete?
Operate the system in order to verify the repair.
10
Did you find and correct the condition?
Action
Heating, Ventilation and Air Conditioning:
Yes
Go to Step 2
Go to Step 3
Go to Step 4
Go to Step 5
Go to Step 7
Go to Step 8
Go to Step 10
Go to Step 10
Go to Step 10
System OK
7A-47
No
Go to "Symptoms -
HVAC Systems -
Automatic" or to
"Diagnostic System
Check - Vehicle
Diagnostic
Information: "
Go to Step 10
Go to Step 5
Go to Step 10
Go to Step 6
Go to Step 9
—
—
—
Go to Step 2