DTC P0351, P0352, P0353, P0354

DTC P0351  : No. 1 Cylinder Ignition Coil Circuit Malfunction DTC P0352  : No. 2 Cylinder Ignition Coil Circuit Malfunction DTC P0353  : No. 3 Cylinder Ignition Coil Circuit Malfunction DTC P0354  : No. 4 Cylinder Ignition Coil 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.

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0351 No. 1 Cylinder Ignition Coil Circuit Malfunction
   P0352 No. 2 Cylinder Ignition Coil Circuit Malfunction
   P0353 No. 3 Cylinder Ignition Coil Circuit Malfunction
   P0354 No. 4 Cylinder Ignition Coil Circuit Malfunction

   Is DTC P0351, P0352, P0353, and/or P0354 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 ignition coil 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. Ignition coil check

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

   -2. Exchange the ignition coil from the problem cylinder with one from another cylinder.

   -3. Start the engine.

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0351 No. 1 Cylinder Ignition Coil Circuit Malfunction
   P0352 No. 2 Cylinder Ignition Coil Circuit Malfunction
   P0353 No. 3 Cylinder Ignition Coil Circuit Malfunction

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0354 No. 4 Cylinder Ignition Coil Circuit Malfunction

   Is DTC indicated at the exchanged position?

   YES 

   Replace the faulty ignition coil .

   NO 

   Go to step 3.

3. Shorted wire check (IG1 (IGN COIL)/IG1 (COIL)/IG COIL RLY OUT line)

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

   -2. Check the following fuse.

   Fuse	No. B8 (15 A)
   Location	Under-hood fuse/relay box

   Is the fuses OK?

   YES 

   Go to step 4.

   NO 

   Repair a short in the IG1 (IGN COIL)/IG1 (COIL)/IG COIL RLY OUT wire between the ignition coil and the No. B8 (15 A) fuse. Also replace the No. B8 (15 A) fuse.

4. Relay check

   -1. Remove the ignition coil relay (A) from the under-hood fuse/relay box.

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

   -2. Test the ignition coil relay .

   Is the relay OK?

   YES 

   Go to step 5.

   NO 

   Replace the ignition coil relay.

5. Open wire check (IG1 (IGN COIL)/IG1 (COIL)/IG COIL RLY OUT) line)

   -1. Reinstall the ignition coil relay.

   -2. Disconnect the following connector (s).

   Ignition coil 3P connector (problem cylinder)

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode
   	Ignition coil 3P connector (problem cylinder): disconnected
   Test point 1	Ignition coil 3P connector No. 1
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The IG1 (IGN COIL)/IG1 (COIL)/IG COIL RLY OUT wire is OK. Go to step 6.

   NO 

   Repair an open in the IG1 (IGN COIL)/IG1 (COIL)/IG COIL RLY OUT wire between the ignition coil and the ignition coil relay.

6. Open wire check (PG (COIL) lines)

   -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
   	Ignition coil 3P connector (problem cylinder): disconnected
   Test point 1	Ignition coil 3P connector No. 2
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The PG (COIL) wire is OK. Go to step 7.

   NO 

   Repair an open in the PG (COIL) wire between the ignition coil and G101.

7. Shorted wire check (IGN lines)

   -1. Jump the SCS line with the HDS.

   -2. Disconnect the following connector.

   PCM connector C (51P)

   -3. Check for continuity between body ground and the appropriate PCM connector terminal of the problem ignition coil (see table).

   Test condition	Vehicle OFF (LOCK) mode
   	Ignition coil 3P connector (problem cylinder): disconnected
   	PCM connector C (51P): disconnected

   PROBLEM CYLINDER	DTC	PCM TERMINAL
   No. 1	P0351	C47
   No. 2	P0352	C46
   No. 3	P0353	C45
   No. 4	P0354	C44

   Is there continuity?

   YES 

   Repair a short in the IGN wire between the PCM and the ignition coil.

   NO 

   The IGN wires are not shorted. Go to step 8.

8. Open wire check (IGN lines)

   -1. Check for continuity between the appropriate ignition coil 3P connector terminal No. 3 and the appropriate PCM connector terminal of the problem ignition coil (see table).

   Test condition	Vehicle OFF (LOCK) mode
   	Ignition coil 3P connector (problem cylinder): disconnected
   	PCM connector C (51P): disconnected

   PROBLEM CYLINDER	DTC	PCM TERMINAL
   No. 1	P0351	C47
   No. 2	P0352	C46
   No. 3	P0353	C45
   No. 4	P0354	C44

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

   Is there continuity?

   YES 

   The IGN wires are OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC P0351, P0352, P0353, and/or P0354 goes away and the PCM was updated, troubleshooting is complete. If DTC P0351, P0352, P0353, and/or P0354 goes away and the PCM was substituted, replace the original PCM .

   NO 

   Repair an open in the IGN wire between the PCM and the ignition coil.