Control Module HVAC: Testing and Inspection

1. W/ Power Steering:
INSPECT A/C AMPLIFIER CIRCUIT
a. Remove these parts:
1. Lower No. 2 finish panel
2. Lower No. 2 finish panel retainer







b. Disconnect the connector from amplifier and inspect the connector on wire harness side, as shown in the chart.
Test conditions:
^ Turn ignition switch to ON
^ Blower speed control switch at "HI" position
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.







c. Connect the connector to amplifier and inspect the wire harness connector from the back side, as shown in the chart.
Tester conditions:
^ Running engine at idle speed
^ Blower speed control switch at "HI position
^ Temperature control lever at "Max. COOL" position
^ A/C switch ON Set 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.

2. w/o Power steering:
INSPECT A/C AMPLIFIER







a. Disconnect the connector from amplifier and inspect the connector on wire harness side, as shown in the chart.
Test conditions:
^ Turn ignition switch to ON
^ Blower speed control switch at "HI" position
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 the wire harness connector from back side, as shown in the chart.
Test conditions:
^ Running engine at idle speed
^ Blower speed control switch at "HI" position
^ Temperature control lever at "Max. COOL" position
^ A/C switch ON
^ Set 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.