F 550 4WD Super Duty V10-6.8L (2009)
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Connect the HVAC module connector and make sure it seats correctly.
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Operate the system and verify the concern is still present.
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Is the concern still present?
Yes
INSTALL a new HVAC module. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the
network test with the scan tool.
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V34 CHECK FOR CORRECT DSM OPERATION
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Disconnect all the DSM connectors.
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Check for:
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corrosion
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damaged pins
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pushed-out pins
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Connect all the DSM connectors and make sure they seat correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new DSM. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the
network test with the scan tool.
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V35 CHECK FOR CORRECT ACM OPERATION
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Disconnect all the ACM connectors.
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Check for:
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corrosion
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damaged pins
-
pushed-out pins
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Connect all the ACM connectors and make sure they seat correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
Yes
INSTALL a new ACM. CLEAR the DTCs. REPEAT the network test with the scan tool.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the
network test with the scan tool.
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V36 CHECK FOR CORRECT APIM OPERATION
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Disconnect all the APIM connectors.
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Check for:
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corrosion
-
damaged pins
-
pushed-out pins
-
Connect all the APIM connectors and make sure they seat correctly.
-
Operate the system and verify the concern is still present.
-
Is the concern still present?
