VR30DDTT engine
- CHECK FUEL PUMP CONTROL MODULE POWER SUPPLY CIRCUIT-I
- Turn ignition switch OFF.
- Disconnect Fuel pump control module harness connector.
- Turn ignition switch ON.
- Check the voltage between Fuel pump control module harness connector and ground.
Fuel pump control module
Ground
Voltage
Connector
Terminal
B11
6
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 2.
- CHECK FUEL PUMP CONTROL MODULE POWER SUPPLY CIRCUIT-II
- Turn ignition switch OFF.
- Disconnect IPDM E/R harness connector.
- Check the continuity between IPDM E/R harness connector and Fuel pump control module harness connector.
IPDM E/R
Fuel pump control module
Continuity
Connector
Terminal
Connector
Terminal
E120
15
B11
6
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace error-detected parts.
- CHECK FUSE
- Disconnect 15 A fuse (No. 52) from IPDM E/R.
- Check 15 A fuse.
Is the inspection result normal?
YES
GO TO 4.
NO
Replace 15 A fuse.
- CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to Inspection .
Is the inspection result normal?
YES
Replace IPDM E/R. Refer to IPDM E/R : Removal & Installation .
NO
Repair or replace error-detected parts.
- CHECK FUEL PUMP CONTROL MODULE GROUND CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Check the continuity between Fuel pump control module harness connector and ground.
Fuel pump control module
Ground
Continuity
Connector
Terminal
B11
3
Ground
Existed
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace error-detected parts.
- CHECK FUEL PUMP CONTROL MODULE INPUT AND OUTPUT CIRCUITS FOR OPEN AND SHORT
- Disconnect ECM harness connector.
- Check the continuity between Fuel pump control module harness connector and ECM harness connector.
Fuel pump control module
ECM
Continuity
Connector
Terminal
Connector
Terminal
B11
4
E152
182
Existed
5
188
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 7.
NO
Repair or replace error-detected parts.
- CHECK FUEL PUMP CONTROL CIRCUIT FOR OPEN AND SHORT
- Disconnect "fuel level sensor unit" harness connector.
- Check the continuity between Fuel pump control module harness connector and "fuel level sensor unit" harness connector.
Fuel pump control module
Fuel level sensor unit
Continuity
Connector
Terminal
Connector
Terminal
B11
1
B101
5
Existed
2
6
Is the inspection result normal?
YES
GO TO 8.
NO
Repair or replace error-detected parts.
- CHECK FUEL PUMP
Check fuel pump. Refer to Component Inspection .
Is the inspection result normal?
YES
GO TO 9.
NO
Replace fuel pump. Refer to FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY : Exploded View .
- CHECK FUEL PUMP CONTROL MODULE
Check fuel pump control module. Refer to Component Inspection .
Is the inspection result normal?
YES
Check intermittent incident. Refer to Inspection .
NO
Replace fuel pump. Refer to FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY : Exploded View .