Engine Main Relay & Cooling Fan Relay No. 3

Disconnect engine main relay. See Fig 1 or Fig 2. If engine main relay has tested okay, disconnect cooling fan relay No. 3.
Use an ohmmeter to check for continuity between relay terminals No. 1 and 3. See Fig 1 or Fig 2. Check for continuity between relay terminals No. 2 and 4. Ensure continuity is not present between relay terminals No. 4 and 5. If continuity is not as specified, replace relay.
Apply battery voltage between relay terminals No. 1 and 3. Using an ohmmeter, check for continuity between relay terminals No. 4 and 5. Ensure continuity is not present between relay terminals No. 2 and 4. If continuity readings are not as specified, replace relay.

Fig 1: Engine Main Relay Terminal ID

Fig 2: Cooling Fan Relay No. 3 Terminal ID