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Home >> Infiniti >> 2004 >> Q45 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> DTC P1220: Fuel Pump Control Module (FPCM) >> DTC Confirmation Procedure
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DTC Confirmation Procedure

CAUTION: Always drive vehicle at a safe speed.
NOTE: If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION: 

Before performing the following procedure, confirm that battery voltage is more than 10V with ignition switch ON. 

With CONSULT-II 

  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-II.
  2. Make sure that "COOLAN TEMP/S" indicates less than 70°C (158°F). If not, cool down the engine.
  3. Start engine.
  4. Hold vehicle at the following conditions for 12 seconds.
    Fig 1: Testing Conditions
    G00761079Courtesy of NISSAN MOTOR CO., U.S.A.
  5. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .

With GST 

Follow the procedure With CONSULT-II above.