Suzuki XL7 2007 Service Manual page 1874

7A-60 Heating, Ventilation and Air Conditioning:
Step
Inspect mode door and the mode actuator for the following
conditions:
• A misaligned mode actuator Refer to "Mode Actuator
Replacement".
• Broken or binding linkages or mode door
9
• An obstruction that prevents the mode actuator from
operating within the full range of motion
• Missing seals to the mode door
• Misaligned seals to the mode door
Did you find and correct the condition?
Test the position signal circuit of the mode actuator for an open
or for a high resistance. Refer to "Circuit Testing: " and to
10
"Wiring Repairs: ".
Did you find and correct the condition?
Test the low reference circuit of the mode actuator for an open
or for a high resistance. Refer to "Circuit Testing: " and to
11
"Wiring Repairs: ".
Did you find and correct the condition?
Test the 5-volt reference circuit of the mode actuator for an
open or for a high resistance. Refer to "Circuit Testing: " and to
12
"Wiring Repairs: ".
Did you find and correct the condition?
1. Turn OFF the ignition.
2. Reconnect the mode actuator.
3. Turn ON the ignition with the engine OFF.
4. Connect a test lamp between mode door control A and
13
mode door control B circuits of the mode actuator
connector.
5. Place the mode switch in the Defrost position.
6. Place the mode switch in the Panel position.
Does the test lamp illuminate in both positions?
Test the mode door control A and mode door control B circuits
of the mode actuator for an open, a high resistance, a short to
14 ground, or a short to voltage. Refer to "Circuit Testing: " and to
"Wiring Repairs: ".
Did you find and correct the condition?
Test the ignition 1voltage circuit of the HVAC control module
for an open or for a high resistance. Refer to "Circuit Testing: "
15
and to "Wiring Repairs: ".
Did you find and correct the condition?
Test the ground circuit of the HVAC control module for an open
or for a high resistance. Refer to "Circuit Testing: " and to
16
"Wiring Repairs: ".
Did you find and correct the condition?
Inspect for bad connections at the harness connector of the
mode actuator. Refer to "Testing for Intermittent Conditions
17
and Poor Connections: " and to "Connector Repairs: ".
Did you find and correct the condition?
Inspect for bad connections at the harness connector of the
HVAC control module. Refer to "Testing for Intermittent
18 Conditions and Poor Connections: " and to "Connector
Repairs: ".
Did you find and correct the condition?
Replace the mode actuator. Refer to "Mode Actuator
19 Replacement".
Did you complete the replacement?
Action Yes
Go to Step 21 Go to Step 10
Go to Step 21 Go to Step 11
Go to Step 21 Go to Step 12
Go to Step 21 Go to Step 13
Go to Step 17 Go to Step 14
Go to Step 21 Go to Step 18
Go to Step 21 Go to Step 16
Go to Step 21 Go to Step 18
Go to Step 21 Go to Step 19
Go to Step 21 Go to Step 20
Go to Step 21
No
—