Suzuki XL7 2007 Service Manual page 1875

Step
Replace the HVAC control module. Refer to "Control Module
20 References: " for replacement, setup and programming.
Did you complete the replacement?
Operate the system in order to verify the repair.
21
Did you correct the condition?
Air Delivery Improper - Auxiliary
Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle Diagnostic Information: " prior to using this diagnostic procedure.
• "Strategy Based Diagnosis: "
• "Diagnostic Procedure Instructions - Vehicle Diagnostic Information: "
Test Description
The numbers below refer to the step numbers on the diagnostic table.
3.
This step tests for an auxiliary blower motor that does not operate regardless of the desired blower motor speed.
4.
This step tests for an auxiliary blower motor that operates, yet does not accurately respond to the desired blower
motor speed.
8.
The measured voltage should be near the specified value for each mode position.
Mode Position
Step
Schematic Reference: "HVAC Schematics"
Connector End View Reference: "HVAC Connector End Views"
DEFINITION: Air does not flow correctly from the auxiliary air distribution outlets.
Did you perform the Diagnostic System Check - Vehicle?
1
1. Turn ON the ignition, with the engine OFF.
2
2. Place the auxiliary blower motor switch in the OFF position.
Is the auxiliary blower motor OFF?
Place the auxiliary blower motor switch in each speed position.
3 Does the auxiliary blower motor operate in each speed position?
Does the auxiliary blower motor operate at the desired speed?
4
Place the auxiliary mode switch in each mode position.
Does the air flow from the correct air distribution outlets in each
5
selected mode position?
1. Turn OFF the ignition.
2. Disconnect the auxiliary mode actuator.
3. Turn ON the ignition, with the engine OFF.
6
4. Connect a test lamp between the auxiliary mode actuator
supply voltage circuit and ground.
Does the test lamp illuminate?
Action
Vent
Bi-Level
Floor
Off
Action
Heating, Ventilation and Air Conditioning:
Yes
Go to Step 21
System OK
Value
0.0-1.2 V
2.1-4.0 V
5.0-7.0 V
B+
Yes
Go to Step 2
Go to Step 3
Go to Step 4
Go to Step 5
Go to "Testing for
Intermittent
Conditions and Poor
Connections: "
Go to Step 7
7A-61
No
—
Go to Step 8
No
Go to "Diagnostic
System Check -
Vehicle Diagnostic
Information: "
Go to "Auxiliary
Blower Motor
Malfunction"
Go to "Auxiliary
Blower Motor
Malfunction"
Go to "Auxiliary
Blower Motor
Malfunction"
Go to Step 6
Go to Step 9