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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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With Air Conditioning

Heater Module View:




Heater Module View:






REMOVE OR DISCONNECT
1. Negative battery cable and drain cooling system.
2. Raise vehicle.
3. Heater hoses from heater core and lower vehicle.
4. Instrument panel and Diagnostic Energy Reserve Module (DERM) with attaching brackets.
5. Heater core cover.
6. Heater core mounting clamps and remove heater core.

INSTALL OR CONNECT
1. Heater core and heater core mounting clamps.
2. Heater core cover.
3. Diagnostic Energy Reserve Module (DERM) with attaching brackets and instrument panel.
4. Raise vehicle and connect heater hoses to heater core.
5. Lower vehicle.
6. Negative battery cable and fill cooling system.
7. Check for leaks.