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EC-1494
[YD (WITHOUT EURO-OBD)]
FUEL TRANSPORT PUMP
11. CHECK FUEL LEVEL SWITCH POWER SUPPLY AND GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect sub fuel level sensor unit harness connector.
4. Check harness continuity between ECM terminal 14 and sub
fuel level sensor unit terminal 2, between sub fuel level sensor
unit terminal 4 and ground. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
12. DETECT MALFUNCTIONING PART
Check the following.
● Harness connector F30, M63
● Harness connector M78, B105 (LHD models)
● Harness connectors M18, B2 (RHD models)
● Harness for open or short between sub fuel level sensor unit and ground.
>> Repair open circuit or short to ground or short to power in harness or connectors.
13. CHECK FUEL LEVEL SWITCH
Refer to EC-1494, "
Component Inspection"
OK or NG
OK >> GO TO 14.
NG >> Replace sub fuel level sensor unit.
14. CHECK INTERMITTENT INCIDENT
Refer to EC-1260, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
>> INSPECTION END
Component Inspection EBS0126K
FUEL TRANSPORT PUMP RELAY
Check continuity between terminals 3 and 5 under the following coni-
tions.
Continuity should exist.
PBIB1944E
Conditions Continuity
12V direct current supply between terminals 1 and 2 Yes
No current supply No
PBIB0098E
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