Component Testing: Relay
- Check for loose connections on fan motor and at fan motor relay. If all connections are okay, fault codes must be checked. If no fault codes are present, go to next step.
- With ignition on and engine at normal operating temperature, check for battery voltage on both sides of cooling fan relay fuse. Cooling fan relay fuse and high and low speed fan relays are located in fuse/relay box in front of left strut tower. See Fig 1 .
- If battery voltage is not present, repair short or open in Red/Light Green wire circuit. If battery voltage is present, remove low speed or high speed fan motor relay. Using an ohmmeter, ensure continuity exists between terminals No. 1 and 3. See Fig 2 . If continuity does not exist, replace relay.
- Connect ohmmeter to relay terminals No. 2 and 4. Check continuity with and without battery connected between terminals No. 1 and 3. See RADIATOR FAN RELAY CONTINUITY
table. Replace relay if continuity is not as specified.RADIATOR FAN RELAY CONTINUITY
Battery Connected Continuity Yes (1) Continuity Between Terminals No. 2 & 4 No No Continuity Between Terminals No. 2 & 4 (1) Positive battery terminal connected to terminal No. 1 and negative terminal connected to terminal No. 3. See Fig 2 . IGNITION SWITCH CIRCUIT WIRE COLOR IDApplication Wire Color All Models Light Green/Black PCM PIN IDENTIFICATIONApplication Pin No. All Models 31