## Air Conditioning

#### Radiator and Condenser Fans Low Speed Circuit Troubleshooting (cont'd)

21-14

1. Reinstall the condenser fan relay.

1. Remove the A/C diode A from the under middle of dash.

1. Check for current flow in both directions between the No. 1 and No. 2 terminals of the A/C diode A.

A/C DIODE A

Is there current flow in only one direction?

YES - Go to step 12.

NO - Replace the A/C diode A.

1. Turn the ignition switch ON (II).

1. Measure the voltage between the No. 2 terminal of the A/C diode A 2P connector and body ground.

A/C DIODE A 2P CONNECTOR

Wire side of female terminals

Is there battery voltage?

YES - Repair open in the wire between the A/C diode A and the A/C pressure switch.

NO - Repair open in the wire between the condenser fan relay and the A/C diode A.

1. Disconnect the jumper wire.

1. Reinstall the condenser fan relay.

1. Disconnect the condenser fan 2P connector.

1. Turn the ignition switch ON (II), then turn the A/C and fan switches ON.

1. Measure the voltage between the No. 2 terminal of the condenser fan 2P connector and body ground.

CONDENSER FAN 2P CONNECTOR

Wire side of female terminals

Is there battery voltage?

YES - Go to step 19.

NO - Repair open in the wire between the condenser fan relay and the condenser fan.

1. Turn the A/C and fan switches OFF, then turn the ignition switch OFF.

1. Reconnect the condenser fan 2P connector.

1. Connect the No.1 terminal of the condenser fan 2P connector to body ground with a jumper wire.

CONDENSER FAN 2P CONNECTOR

Wire side of female terminals

a a a