Toyota Prius 2010 Repair Manual page 188

(to Engine Room Relay Block and Junction Block (Integration Relay))
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
5. REPLACE INTEGRATION NO.1 RELAY
(a) Replace the integration relay
HINT:
Since the integration relay cannot be inspected while it is removed from the vehicle, replace the integration
relay with a new or a known good one and check that the condition returns to normal.
(b) Check if the same problem occurs again.
OK:
Same problem does not occur.
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
OK
END (INTEGRATION RELAY WAS DEFECTIVE)
2010 Toyota Prius
.
Repair Manual