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EC-1196
[YD (WITH EURO-OBD)]
FUEL TRANSPORT PUMP
6. DETECT MALFUNCTIONING PART
Check the following.
● Harness connector B22, B128
● Harness for open or short between fuel transport pump relay and fuel transport pump
● Harness for open or short between fuel transport pump and ground
>> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK FUEL TRANSPORT PUMP RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 39 and fuel transport pump relay terminal 2. Refer to
Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> GO TO 8.
8. DETECT MALFUNSTIONING PART
Check the following.
● Harness connector M17, B1 (LHD models)
● Harness connector M18, B2 (RHD models)
● Harness connector M63, F30
● Harness for open or short between ECM and fuel transport pump relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
9. CHECK FUEL TRANSPORT PUMP RELAY
Refer to EC-1197, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace fuel transport pump relay.
10. CHECK TRANSPORT PUMP
Refer to EC-1197, "
Component Inspection" .
OK or NG
OK >> GO TO 14.
NG >> Replace fuel transport pump.
Continuity should exist.
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