DTC P0230

DTC P0230  : Fuel Pump Primary Circuit

NOTE: 

• Before you troubleshoot, review the general troubleshooting information .
• If DTC P0560, P068A, and/or P068B are stored at the same time as DTC P0230, troubleshoot those DTCs first, then recheck for DTC P0230.

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Start the engine.

   -4. Check for Pending or Confirmed DTCs with the HDS.

   DTC Description	Confirmed DTC	Pending DTC
   P0230 Fuel Pump Primary Circuit

   Is DTC P0230 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 PGM-FI main relay 2 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. Relay check

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

   -2. Remove PGM-FI main relay 2 .

   -3. Test PGM-FI main relay 2 .

   Is the relay OK?

   YES 

   Go to step 3.

   NO 

   Replace PGM-FI main relay 2.

3. Determine possible failure area (FI MAIN RLY OUT line, others)

   -1. Turn the vehicle to the ON mode.

   -2. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	PGM-FI main relay 2: disconnected
   Test point 1	PGM-FI main relay 2 4P socket (female terminals) No. 3:
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The FI MAIN RLY OUT wire is OK. Go to step 4.

   NO 

   Go to the troubleshooting for DTC P0560 , P068A , and/or P068B .

4. Open wire check (FUEL PUMP RLY CL- 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 connector.

   PCM connector No. 2 (58P)

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

   Test condition	Vehicle OFF (LOCK) mode
   	PGM-FI main relay 2: disconnected
   	PCM connector No. 2 (58P): disconnected
   Test point 1	PGM-FI main relay 2 4P socket (female terminals) No. 4:
   Test point 2	PCM connector No. 2 (58P) No. 13

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

   Is there continuity?

   YES 

   The FUEL PUMP RLY CL- wire is not open. Go to step 5.

   NO 

   Repair an open in the FUEL PUMP RLY CL- wire between PCM connector No. 2 terminal No. 13 and PGM-FI main relay 2.

5. Shorted wire check (FUEL PUMP RLY CL- line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	PGM-FI main relay 2: disconnected
   	PCM connector No. 2 (58P): disconnected
   Test point 1	PGM-FI main relay 2 4P socket (female terminals) No. 4:
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short in the FUEL PUMP RLY CL- wire between PCM connector No. 2 terminal No. 13 and PGM-FI main relay 2.

   NO 

   The FUEL PUMP RLY CL- wire is not shorted to ground. Go to step 6.

6. Shorted wire check (FUEL PUMP RLY CL- line to power)

   -1. Turn the vehicle to the ON mode.

   -2. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	PGM-FI main relay 2: disconnected
   	PCM connector No. 2 (58P): disconnected
   Test point 1	PGM-FI main relay 2 4P socket (female terminals) No. 4:
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   Repair a short to power in the FUEL PUMP RLY CL- wire between PCM connector No. 2 terminal No. 13 and PGM-FI main relay 2.

   NO 

   The FUEL PUMP RLY CL- wire is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM , then recheck. If DTC P0230 goes away and the PCM was substituted, replace the original PCM .