Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
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Control Module HVAC: Testing and Inspection
PWM UNIT INSPECTION 1.
Connect the PWM unit connector.
2.
Turn the ignition switch to ON position.
3.
Measure the voltage at each PWM unit terminal and refer to the terminal voltage list.
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If not as specified, inspect the parts listed under "Action" and the related wiring harness.
