DTC P0201, P0202, P0203, P0204

DTC P0201  : No. 1 Cylinder Injector Circuit Malfunction DTC P0202  : No. 2 Cylinder Injector Circuit Malfunction DTC P0203  : No. 3 Cylinder Injector Circuit Malfunction DTC P0204  : No. 4 Cylinder Injector Circuit Malfunction

NOTE:  Before you troubleshoot, review the general troubleshooting information .

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, and let it idle for 20 seconds.

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0201 No. 1 Cylinder Injector Circuit Malfunction
   P0202 No. 2 Cylinder Injector Circuit Malfunction
   P0203 No. 3 Cylinder Injector Circuit Malfunction
   P0204 No. 4 Cylinder Injector Circuit Malfunction

   Is DTC P0201, P0202, P0203, or P0204 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 injectors and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot .

2. Injector internal resistance check

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

   -2. Disconnect the following connector (s).

   Injector 2P connector (problem cylinder) (see table)

   PROBLEM CYLINDER	DTC
   No. 1	P0201
   No. 2	P0202
   No. 3	P0203
   No. 4	P0204

   -3. At the injector side, measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Injector 2P connector (problem cylinder): disconnected
   Test point 1	Injector 2P connector No. 1 (injector side)
   Test point 2	Injector 2P connector No. 2 (injector side)

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

   Is there 9.8-10.8 Ω?

   YES 

   The injector is OK. Go to step 3.

   NO 

   Replace the problem injector .

3. Open wire check (IGP (INJ)/IGP (MAIN)/FI MAIN RLY OUT line)

   -1. Turn the vehicle to the ON mode.

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

   Test condition	Vehicle ON mode
   	Injector 2P connector (problem cylinder): disconnected
   Test point 1	Injector 2P connector No. 2
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The IGP (INJ)/IGP (MAIN)/FI MAIN RLY OUT wire is OK. Go to step 4.

   NO 

   Repair an open in the IGP (INJ)/IGP (MAIN)/FI MAIN RLY OUT wire between the injector and PGM-FI main relay 1.

4. Determine possible failure area (INJ line short, INJ line open)

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

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

   Test condition	Vehicle OFF (LOCK) mode
   	Injector 2P connector (problem cylinder): disconnected
   Test point 1	Injector 2P connector No. 1
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Go to step 5.

   NO 

   Go to step 6.

5. Shorted wire check (INJ lines)

   -1. Jump the SCS line with the HDS.

   -2. Disconnect the following connector.

   PCM connector C (51P)

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Injector 2P connector (problem cylinder): disconnected
   	PCM connector C (51P): disconnected
   Test point 1	Injector 2P connector No. 1
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   Repair a short in the INJ wire between the PCM and the injector.

   NO 

   The INJ wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC P0201, P0202, P0203 and/or P204 goes away and the PCM was updated, troubleshooting is complete. If DTC P0201, P0202, P0203 and/or P204 goes away and the PCM was substituted, replace the original PCM .

6. Open wire check (INJ lines)

   -1. Jump the SCS line with the HDS.

   -2. Disconnect the following connector.

   PCM connector C (51P)

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Injector 2P connector (problem cylinder): disconnected
   	PCM connector C (51P): disconnected
   Test point 1	Injector 2P connector No. 1
   Test point 2	Appropriate PCM connector terminal of the problem cylinder (see table)

   PROBLEM CYLINDER	DTC	PCM TERMINAL
   No. 1	P0201	C14
   No. 2	P0202	C13
   No. 3	P0203	C12
   No. 4	P0204	C11

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

   Is there continuity?

   YES 

   The INJ wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC P0201, P0202, P0203 and/or P0204 goes away and the PCM was updated, troubleshooting is complete. If DTC P0201, P0202, P0203 and/or P0204 goes away and the PCM was substituted, replace the original PCM .

   NO 

   Repair an open in the INJ wire between the PCM and the injector.