## DTC Troubleshooting: P1351 (15-5), P1352 (15-6), P1353 (15-7), P1354 (15-8)

P1351 (15-5): | No. 1/No. 4 Cylinder Front Ignition Coil Circuit Malfunction
P1352 (15-6): | No. 1/No. 4 Cylinder Rear Ignition Coil Circuit Malfunction
P1353 (15-7): | No. 2/No. 3 Cylinder Front Ignition Coil Circuit Malfunction
P1354 (15-8): | No. 2/No. 3 Cylinder Rear Ignition Coil Circuit Malfunction

1. | Reset the ECM/PCM.

2. | Replace the ignition coils of the cylinders that correspond to the indicated DTC with the ignition coils of the other cylinders Example: If the DTC P1351 (15-5) is shown, replace the front side ignition coils of the No. 1/No. 4 cylinders with the ignition coils of the No. 2/No. 3 cylinders. Perform the same procedure on the rear side. NOTE: The front side ignition coil cannot be interchanged with the rear side ignition coil, as they are different in shape.

3. | Start the engine, and check the DTC with the scan tool. Is DTC P1351, P1352, P1353 or P1354 indicated? YES - Go to 4. NO - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the ignition coils and at the ECM/ PCM.n

4. | Check the DTC again. Check whether another DTC is shown indicating that the ignition primary circuit is faulty but it is different from the DTC shown before? YES - Replace either ignition coil of the two cylinders that are indicated with the DTC with the one of the original cylinder. Then, perform the symptom reproduction test shown above. Replace the ignition coil that has been shown faulty with the DTC. NO - Go to 5.

5. | Turn the ignition switch OFF.

6. | Disconnect the ignition coil 3P connector from the problem cylinder.

7. | Check for continuity between the ignition coil 3P connector terminal No. 2 and body ground (see table).
FRONT SIDE
PROBLEM CYLINDER | DTC
--- | ---
No. 1 | P1351
No. 2 | P1353
No. 3 | P1353
No. 4 | P1351
REAR SIDE
PROBLEM CYLINDER | DTC
--- | ---
No. 1 | P1352
No. 2 | P1354
No. 3 | P1354
No. 4 | P1352
Is there continuity? YES - Go to 8. NO - Repair open in the wire between the ignition coil and G101.n

8. | Disconnect the negative cable from the battery.

9. | Disconnect the ECM/PCM connectors A (31P) and B (24P).

10. | Check for continuity between body ground and the appropriate ECM/PCM connector terminal (see table).
FRONT SIDE
PROBLEM CYLINDER | DTC | ECM/PCM TERMINAL | WIRE COLOR
--- | --- | --- | ---
No. 1 | P1351 | A30 | WHT
No. 2 | P1353 | A29 | WHT/GRN
No. 3 | P1353 | A28 | WHT/BLK
No. 4 | P1351 | A27 | WHT/BLU
REAR SIDE
PROBLEM CYLINDER | DTC | ECM/PCM TERMINAL | WIRE COLOR
--- | --- | --- | ---
No. 1 | P1352 | B1 | WHT
No. 2 | P1354 | B10 | WHT/GRN
No. 3 | P1354 | A16 | WHT/BLK
No. 4 | P1352 | B22 | WHT/BLU
Is there continuity? YES - Repair short in the wire between the ECM/ PCM and the ignition coil.n NO - Go to 11.

11. | Connect the appropriate ignition coil 3P connector terminal No. 1 and body ground with a jumper wire (see table).
FRONT SIDE
PROBLEM CYLINDER | DTC | WIRE COLOR
--- | --- | ---
No. 1 | P1351 | WHT
No. 2 | P1353 | WHT/GRN
No. 3 | P1353 | WHT/BLK
No. 4 | P1351 | WHT/BLU
REAR SIDE
PROBLEM CYLINDER | DTC | WIRE COLOR
--- | --- | ---
No. 1 | P1352 | WHT
No. 2 | P1354 | WHT/GRN
No. 3 | P1354 | WHT/BLK
No. 4 | P1352 | WHT/BLU

12. | Check for continuity between body ground and the appropriate ECM/PCM connector terminal (see table).
FRONT SIDE
PROBLEM CYLINDER | DTC | ECM/PCM TERMINAL | WIRE COLOR
--- | --- | --- | ---
No. 1 | P1351 | A30 | WHT
No. 2 | P1353 | A29 | WHT/GRN
No. 3 | P1353 | A28 | WHT/BLK
No. 4 | P1351 | A27 | WHT/BLU
REAR SIDE
PROBLEM CYLINDER | DTC | ECM/PCM TERMINAL | WIRE COLOR
--- | --- | --- | ---
No. 1 | P1352 | B1 | WHT
No. 2 | P1354 | B10 | WHT/GRN
No. 3 | P1354 | A16 | WHT/BLK
No. 4 | P1352 | B22 | WHT/BLU
Is there continuity? YES - Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/ PCM.n NO - Repair open in the wire between the ECM/ PCM and the ignition coil.n