8
Test the A/C request signal circuit of the
body control module (BCM) for a short to
voltage. Refer to Circuit Testing and
Wiring Repairs .
Did you find and correct the condition?
Go to Step 17
Go to Step 12
9
Inspect for poor connections at the A/C
compressor clutch relay. Refer to Testing
for Intermittent Conditions and Poor
Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 17
Go to Step 13
10
Inspect for poor connections at the harness
connector of the A/C compressor clutch.
Refer to Testing for Intermittent
Conditions and Poor Connections and
Connector Repairs .
Did you find and correct the condition?
Go to Step 17
Go to Step 14
11
Inspect for poor connections at the harness
connector of the HVAC control module.
Refer to Testing for Intermittent
Conditions and Poor Connections and
Connector Repairs .
Did you find and correct the condition?
Go to Step 17
Go to Step 15
12
Inspect for poor connections at the harness
connector of the BCM. Refer to Testing
for Intermittent Conditions and Poor
Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 17
Go to Step 16
13
Replace the A/C compressor clutch relay.
Refer to Compressor Relay
Replacement .
Did you complete the replacement?
Go to Step 17
-
14
Replace the A/C compressor. Refer to
Compressor Replacement .
Did you complete the replacement?
Go to Step 17
-
15
Replace the HVAC control module. Refer
to Heater and Air Conditioning
Control Replacement.
Did you complete the replacement?
Go to Step 17
-
2007 Hummer H3
2007 HVAC HVAC - Manual - H3