Component Inspection

INSPECT AMPLIFIER CIRCUIT




a. Inspect the amplifier connector on wire harness side as shown in the chart.




Test conditions:
- Ignition switch: ON
- Blower speed switch: HI
- Temperature control lever: Max. Cool

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




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




Test conditions:
- Running engine: idle speed
- Blower speed switch: HI
- A/C switch: ON
- Temperature control lever: Max Cool
- Set on manifold gauge set

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