Operation CHARM: Car repair manuals for everyone.
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

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Heater Core Case: Testing and Inspection

Rear Heater Unit (5-Door)

INSPECTION

1. INSPECT FINS FOR BLOCKAGE
If the fins are clogged, clean them with compressed air.




2. INSPECT REAR HEATER BLOWER MOTOR OPERATION
Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, then check that the motor rotates smoothly.
If operation is not as specified, replace the blower motor.