Control Module HVAC: Testing and Inspection

INSPECT A/C AMPLIFIER CIRCUIT










1. Disconnect the connector from the amplifier and inspect connector on wire harness side, as shown in the chart.

Test conditions:
- Ignition switch ON
- Temperature control lever to MAX COOL
- Blower switch HI

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










2. Connect the connector to A/C amplifier and inspect wire harness side connector from the back side, as shown in the chart.

Test conditions:
- Ignition switch ON
- A/C switch ON
- Temperature control lever MAX COOL
- Blower switch HI
- Install 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.