929 V6-3.0L DOHC (1993)
1. Remove the off relay.
2. Connect battery positive voltage to terminal d and ground terminal c.
3. Check continuity between terminals a and b of the relay.
Step 3
Heater Relay Inspection
1. Connect a jumper wire between terminal wire (P/B) of the off relay connector and a body ground.
2. Turn the ignition switch ON and press the AUTO switch ON.
3. If the blower motor does not operate, go to Step 5.
4. If the blower motor operates, go to Step 4.
Step 4
Harness Continuity Inspection
1. Disconnect the off relay connector and A/C amplifier connector.
2. Check for continuity of terminal wire (P/B) between the connectors.
Step 5