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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Air Conditioning Amplifier









Disconnect the amplifier and inspect the connector on the wire harness side as shown in the chart below.

Test conditions:
1. Ignition switch: ON
2. Temperature control lever: MAX COOL
3. Blower switch: HI





4. False Signal Input to System Amplifier









5. System Operation when Input False Signal

Condition: Setting Temperature is at 25°C (77°F)

If necessary, replace the system amplifier.