Section    4 TM9-2320-363-20-1 TROUBLESHOOTING CHARTS E.    CODE    37- FUEL    PRESSURE SENSOR (FPS)    SIGNAL VOLTAGE HIGH    (Cont’d.) 37-4 Check  FPS  Connectors l  Inspect    terminals at  the   FPS connectors (sensor side    and harness side)    for   damage: bent. corroded. and    unseated pins   or sockets. 37-5 Check  for   Short l Turn    ignition    Off. l  Disconnect the   engine harness connector   at  the  ECM. l  Read resistance between sockets WI    and   M 1 on  the   engine harness connector. 37-6 Check for  Short  to Battery   + l Remove both    fuses    to  the ECM .   Disconnect the   vehicle harness and   6-way power harness connectors at  the   ECM. l  Read   resistance between socket M 1 of  the   engine  harness connector and   socket B3   of  the vehicle harness connector .   Also   read    resistance between socket    Ml on  the  engine   harness connector and   the   following sockets on   the   6-way power harness connector: A,   B,  E  and   F. Terminals and connectors are   okay. Problem  found Less than  or equal  to  10,000  ohms. Greater than 10,000 ohms    or  open. All   readings  are greater  than  10,000  ohms or open. Any   reading is less   than   or  equal to 10.000    ohms. WHAT TO   DO  NEXT Replace FPS.  Then    go   to   37-30. Repair terminals/connectors. Then go  to  37-30. Signal line (ckt  #905)    is shorted to the engine  +5 Volt  line (ckt #416).  Contact  Direct  Support. Go to  37-6. Go to  37-8. A short exists    between the sockets where less   than 10,000 ohms resistance  was  read. Repair  short, page  3-2,  and reinsert fuses. Then  go  to 37-30. 3-279