HV Battery Cooling: Inspection

INSPECT BLOWER MOTOR OPERATION (See DTC P3077: BATTERY COOLING FAN MOTOR CIRCUIT MALFUNCTION )
INSPECT BATTERY FAN RELAY
1. Remove the battery fan relay.
  
  Fig 1: Removing Battery Fan Relay
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Inspect the battery fan relay continuity.
  1. Using an ohmmeter, check that there is continuity between terminals 1 and 2.
    If there is no continuity, replace the relay.
  2. Check that there is no continuity between terminals 3 and 5.
  Fig 2: Inspecting Battery Fan Relay Continuity Using Ohmmeter
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If there is continuity, replace the relay.
3. Inspect the battery fan relay operation.
  1. Apply battery voltage across terminals 1 and 2.
  2. Using an ohmmeter, check that there is continuity between terminals 3 and 5.
  If there is no continuity, replace the relay.
  
  Fig 3: Checking Continuity Between Terminals 3 & 5
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Install the battery fan relay.