DTC P0351, P0352, P0353, P0354, P0355, P0356

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 DTC P0355  : No. 5 Cylinder Ignition Coil Circuit Malfunction DTC P0356  : No. 6 Cylinder Ignition Coil Circuit Malfunction

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
   P0355 No. 5 Cylinder Ignition Coil Circuit Malfunction
   P0356 No. 6 Cylinder Ignition Coil Circuit Malfunction

   Is DTC P0351, P0352, P0353, P0354, P0355, and/or P0356 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
   P0354 No. 4 Cylinder Ignition Coil Circuit Malfunction
   P0355 No. 5 Cylinder Ignition Coil Circuit Malfunction
   P0356 No. 6 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 (IG(IGN COIL)/IG(IGN COIL J/C)/+B IG COIL line)

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

   - 2. Check the following fuse.

   Fuse	No. C11 (15 A)
   Location	Under-hood fuse/relay box

   Is the fuse OK?

   YES 

   Go to step 4.

   NO 

   Repair a short in the IG(IGN COIL)/IG(IGN COIL J/C)/+B IG COIL wire between the ignition coil and the No. C11 (15 A) fuse. Also replace the No. C11 (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 (IG(IGN COIL)/IG(IGN COIL J/C)/+B IG COIL) 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 circuit	IG(IGN COIL)
   Test point 1	Ignition coil 3P connector No. 1 (RED)
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   The IG(IGN COIL)/IG(IGN COIL J/C)/+B IG COIL wire is OK. Go to step 6.

   NO 

   Repair an open in the IG(IGN COIL)/IG(IGN COIL J/C)/+B IG COIL wire between the ignition coil and the ignition coil relay.

6. Open wire check (PHC GND/LG 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 circuit	PHC GND
   Test point 1	Ignition coil 3P connector No. 2 (GRY)
   Test point 2	Body ground

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

   Is there continuity?

   YES 

   The PHC GND/LG wires are OK. Go to step 7.

   NO 

   Repair an open in the PHC GND/LG wire between the ignition coil and G101.

7. Shorted wire check (IGN PULSE lines)

   -1. Jump the SCS line with the HDS.

   - 2. Disconnect the following connector.

   PCM connector B (51P) - Refer to: How to Troubleshoot the Brake Booster Pressure Monitoring System (2016 2017 2018 2019 2020), or How to Troubleshoot the Fuel and Emissions Systems(With Auto Idle Stop System) (2016), or How to Troubleshoot the Fuel and Emissions Systems, or How to Troubleshoot the A/T System (2014 2015)

   - 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 B (51P): disconnected

   PROBLEM CYLINDER	DTC	PCM TERMINAL	WIRE COLOR
   No. 1	P0351	B41	WHT
   No. 2	P0352	B42	PUR

   PROBLEM CYLINDER	DTC	PCM TERMINAL	WIRE COLOR
   No. 3	P0353	B32	BLU
   No. 4	P0354	B33	LT BLU
   No. 5	P0355	B21	YEL
   No. 6	P0356	B22	TAN

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

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

   Is there continuity?

   YES 

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

   NO 

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

8. Open wire check (IGN PULSE lines)

   -1. Check for continuity between 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 B (51P): disconnected

   PROBLEM CYLINDER	DTC	PCM TERMINAL	WIRE COLOR
   No. 1	P0351	B41	WHT
   No. 2	P0352	B42	PUR
   No. 3	P0353	B32	BLU
   No. 4	P0354	B33	LT BLU
   No. 5	P0355	B21	YEL

   PROBLEM CYLINDER	DTC	PCM TERMINAL	WIRE COLOR
   No. 6	P0356	B22	TAN

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

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

   Is there continuity?

   YES 

   The IGN PULSE wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM - Refer to: PCM Removal and Installation (2014 2015), or PCM Removal and Installation (2016) .

   NO 

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