DTC P0190

DTC P0190  : Fuel Rail Pressure Sensor Circuit Out of Range

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• Check for damage or corrosion at the fuel rail pressure sensor connector terminals.

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   P0190 Fuel Rail Pressure Sensor Circuit Out of Range

   Is DTC P0190 indicated?

   YES 

   The failure is duplicated. Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the fuel rail pressure sensor and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot .

2. Shorted wire check (PF line)

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Jump the SCS line with the HDS, and wait more than 1 minute.

   -3. Disconnect the following connectors.

   Fuel rail pressure sensor 5P connector

   PCM connector No. 1 (96P)

   -4. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Fuel rail pressure sensor 5P connector: disconnected
   	PCM connector No. 1 (96P): disconnected
   Test point 1	Fuel rail pressure sensor 5P connector (female terminals) No. 2:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   Repair a short in the PF wire between PCM connector No. 1 terminal No. 32 and the fuel rail pressure sensor.

   NO 

   The PF wire is not shorted. Go to step 3.

3. Open wire check (PF line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Fuel rail pressure sensor 5P connector: disconnected
   	PCM connector No. 1 (96P): disconnected
   Test point 1	Fuel rail pressure sensor 5P connector (female terminals) No. 2:
   Test point 2	PCM connector No. 1 (96P) No. 32

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The PF wire is OK. Go to step 4.

   NO 

   Repair an open in the PF wire between PCM connector No. 1 terminal No. 32 and the fuel rail pressure sensor.

4. Open wire check (SG9 line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Fuel rail pressure sensor 5P connector: disconnected
   	PCM connector No. 1 (96P): disconnected
   Test point 1	Fuel rail pressure sensor 5P connector (female terminals) No. 1:
   Test point 2	PCM connector No. 1 (96P) No. 78

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The SG9 wire is OK. Replace the fuel rail .

   NO 

   Repair an open in the SG9 wire between PCM connector No. 1 terminal No. 78 and the fuel rail pressure sensor.