Inspection Procedure: P0686; Inspect The Main (Edu) Relay; Inspect The Main Relay Unit - Hino Motors HINO 155 series Workshop Manual

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INSPECTION PROCEDURE: P0686

1

Inspect the main (EDU) relay

Was any failure found?
Connect securely, repair if needed.
Perform "After-inspection work" of INFOR-
MATION section.
2

Inspect the main relay unit

Do the measurements meet the standard value?
Go to step 3.
ENGINE (J05E)/TROUBLESHOOTING
1. Check the connection of the main relay (EDU relay) (inside chassis
relay block B) (looseness or poor contact).
YES
1. Set the starter key to the "LOCK" position.
2. Disconnect the main relay.
3. Use the electrical tester to measure the resistance between the
terminals of the main relay.
Main relay terminals
SHTS021270300643
YES
Go to step 2.
Tester connections
Repair or replace the main relay.
Perform "After-inspection work" of INFOR-
MATION section.
NO
Standard values
1 in the figure: 167 
2 in the figure:  
NO