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. Enter the maintenance mode, then start the engine .

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

   DTC Description	Confirmed DTC	Pending DTC
   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 on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the 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. Enter the maintenance mode, then start the engine .

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

   DTC Description	Confirmed DTC	Pending DTC
   P0351 No. 1 Cylinder Ignition Coil Circuit Malfunction
   P0352 No. 2 Cylinder Ignition Coil Circuit Malfunction

   DTC Description	Confirmed DTC	Pending DTC
   P0353 No. 3 Cylinder Ignition Coil Circuit Malfunction
   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. Fuse check

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

   -2. Check the following fuse.

   Fuse

   No. A15

   Is the fuse OK?

   YES 

   Go to step 4.

   NO 

   Check for a short in the IG_COIL_RLY_OUT/IG1(COIL)/IG1(IGN_COIL) wire between the relay circuit board and the ignition coil, and the +B_IG_COIL wire between the No. A15 fuse and the relay circuit board, and repair it if needed. Also replace the No. A15 fuse.

4. Relay circuit board check

   -1. Remove and test the relay circuit board .

   Is the relay circuit board OK?

   YES 

   Go to step 5.

   NO 

   Replace the relay circuit board .

5. Open wire check (+B_IG_COIL line)

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

   Test condition	Vehicle OFF (LOCK) mode
   	Relay circuit board: removed
   Test point 1	Relay circuit board connector C (18P) (female terminals) No. 9:
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   Go to step 6.

   NO 

   Check for an open in the +B_IG_COIL wire between the No. A15 fuse and the relay circuit board.

6. Open wire check (IG_COIL_RLY_OUT/IG1(COIL)/IG1(IGN_COIL) line)

   -1. Reinstall the relay circuit board .

   -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 (female terminals) No. 1:
   Test point 2	Body ground

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

   Is there battery voltage?

   YES 

   Go to step 7.

   NO 

   Repair an open in the IG_COIL_RLY_OUT/IG1(COIL)/IG1(IGN_COIL) wire between the relay circuit board and the ignition coil.

7. Open wire check (PG(COIL) line)

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

   -2. Measure the resistance 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 (female terminals) No. 2:
   Test point 2	Body ground

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

   Is there 1.0 Ω or less?

   YES 

   Go to step 8.

   NO 

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

8. Shorted wire check (IGN lines)

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

   -2. Disconnect the following connector.

   PCM connector E (80P)

   -3. Measure the resistance 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 E (80P): disconnected

   Problem cylinder	DTC	Connector	Terminal
   No. 1	P0351	PCM connector E (80P)	No. 37
   No. 2	P0352		No. 38
   No. 3	P0353		No. 39
   No. 4	P0354		No. 40

   Is there 1 MΩ or more?

   YES 

   The IGN wires are not shorted. Go to step 9.

   NO 

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

9. Open wire check (IGN lines)

   -1. Measure the resistance between appropriate ignition coil 3P connector (female terminals) 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 E (80P): disconnected

   Problem cylinder	DTC	Connector	Terminal
   No. 1	P0351	PCM connector E (80P)	No. 37
   No. 2	P0352		No. 38
   No. 3	P0353		No. 39
   No. 4	P0354		No. 40

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

   Is there 1.0 Ω or less?

   YES 

   The IGN wires are OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good PCM .

   NO 

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