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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Component Inspection

Air Conditioning Amplifier




a. Remove lower panel.
b. Disconnect the connector and inspect the connector on wire harness side, as shown in the chart below.
Test conditions:
- Ignition switch ON
- Blower speed control switch at "HI" position




If circuit is as specified, try to replace the amplifier with a new one. If the circuit is not as specified, inspect the circuits connected to other parts.




c. Connect the connector to amplifier and inspect wire harness side connector from the back side, as shown in the chart below.

Test conditions:
- Running engine at idle speed
- Blower speed control switch at "HI" position
- A/C switch ON
- Temperature control dial at "MAX. COOL" position
- Set on manifold gauge set




If circuit is as specified, try to replace the amplifier with a new one. If the circuit is not as specified, inspect the circuits connected to other parts.