Nissan Juke Service and Repair Manual : P1220 fuel pump control module (FPCM)
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is
between 12 - 15 V at idle.
• Before performing the following procedure, check that the engine coolant temperature is −10°C (14°F) or more.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds.
If engine does not start, crank engine for at least 5 seconds.
2. Check DTC.
Is DTC detected? YES >> Proceed to EC-695, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK FPCM POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect FPCM harness connector.
3. Turn ignition switch ON.
4. Check the voltage between FPCM harness connector and ground.
Is the inspection result normal? YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK FPCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between FPCM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground.
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK FPCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check the continuity between FPCM harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK FPCM INPUT AND OUTPUT CIRCUITS
1. Disconnect ECM harness connector.
2. Check the continuity between FPCM harness connector and ECM harness connector.
3. Also check harness for short to ground and to power.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK FUEL PUMP CONTROL CIRCUIT
1. Disconnect fuel level sensor unit (fuel pump) harness connector.
2. Check the continuity between FPCM harness connector and fuel level sensor unit (fuel pump) harness connector.
3. Also check harness for short to ground and to power.
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace error-detected parts.
6.CHECK FPCM
Check the FPCM. Refer to EC-325, "Component Inspection (FPCM)".
Is the inspection result normal? YES >> Check intermittent incident .Refer to GI-42, "Intermittent Incident".
NO >> Replace FPCM. Refer to EC-806, "Removal and Installation".
Component Inspection (FPCM)
1.CHECK FUEL PUMP CONTROL MODULE (FPCM)
Check the voltage between FPCM terminals as per the following conditions.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace FPCM. Refer to EC-806, "Removal and Installation".
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DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC P1217 is displayed with DTC U1001, first perform the trouble diagnosis
for DTC U1001. Refer
to EC-569, "DTC Logic".
• If DTC P1217 is disp ...
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DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn
ignition switch OFF and wait at
least 10 se ...
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DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble
diagnosis for DTC P0643.
Refer to EC-307, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
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DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn
ignition switch OFF and
wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
With CONSULT ...
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Reference Value
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
*: The values are changed by throttle opening and engine speed.
CAUTION:
When using circuit tester to measure voltage for inspection, be sure not to
extend forcibly any connector
t ...