Measure the voltage between the No. 3 terminal of the blower motor relay 4P socket and body ground. BLOWER MOTOR RELAY 4P SOCKET Is there battery voltage? YES - Go to step 23. NO - Replace the under-hood fuse/relay box. Turn the ignition switch ON (II). Measure the voltage between the No. 2 terminal of the blower motor relay 4P socket and body ground. BLOWER MOTOR RELAY 4P SOCKET Is there battery voltage? YES - Go to step 25. NO - Repair open in the wire between the No. 14 fuse in the under-dash fuse/relay box and the blower motor relay.

Turn the ignition switch OFF. Check for continuity between the No. 1 terminal of the blower motor relay 4P socket and body ground. BLOWER MOTOR RELAY 4P SOCKET Is there continuity? YES - Repair open in the wire between the blower motor relay and the blower motor. NO - Check for an open in the wire between the blower motor relay and body ground. If the wire is OK, check for poor ground at G201.