MIL Comes On With DTCs P0301 thru P0304 – 2009-2013 Honda Pilot

A13-082
May 18, 2015
51869-02164 Version 7

 

Warranty Extension: MIL Comes On With DTCs P0301 thru P0304

Supersedes 13-082, dated September 12, 2015, to revise the information highlighted in yellow.

 

AFFECTED VEHICLES

Year Model Trim VIN Range
 2009–13   Pilot ALL  Check the iN VIN Status for Eligibility

 

REVISON SUMMARY

  • Under REPAIR PROCEDURE B – PISTON CLEANING AND RING REPLACEMENT, Replace Parts as Needed for Repair Procedure B, changed bolt count for the 12 x 163 Washer bolt (P/N 90005-PAA-A01) under Cyl 1-4 from 8 to 16. Also changed the bolt count for Connecting Rod Bolt from 8 to 6.

 

CORRECTIVE ACTION

2009–11 Models: Complete the diagnosis procedure and if necessary, update the PCM software and replace the affected spark plugs.  If the vehicle returns after the updated PCM software and spark plug replacement have been installed, clean the pistons and replace the pistons rings along with the spark plugs (Procedure B).

NOTE: Make sure the software update has been completed, spark plugs replaced (Procedure A), and the vehicle returned to the customer before making any additional repairs. Failure to do so will result in claim review by your DPSM and possible debit.

2012–13 Models: Complete the diagnosis procedure and if necessary, clean the pistons and replace the pistons rings along with the spark plugs (Procedure B).

 

BACKGROUND

American Honda is announcing a powertrain warranty extension as a result of a settlement of a class action captioned, Soto et al.v. American Honda Motor Co., Inc., Case No. 3:12-cv-1377-SI (N.D. Cal.).

The piston rings on certain cylinders may rotate and align, which can lead to spark plug fouling. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected, P0303 No. 3 cylinder misfire detected, P0304 No. 4 cylinder misfire detected, and cause the MIL to come on.

American Honda is extending the powertrain warranty to cover repairs related to engine misfire (that triggers DTCs P0301 through P0304) to 8 years with unlimited mileage from the original date of purchase and has settled a class action based on this remedial measure.

This warranty extension does not apply to any vehicle that has ever been declared a total loss or sold for salvage by a financial institution or insurer, or has a branded or similar title under any state’s law.

 

CUSTOMER NOTIFICATION

Owners of affected vehicles were sent a class action settlement notice regarding this warranty extension starting in October 2013.

Before doing work on a vehicle, verify its eligibility by doing an iN VIN status inquiry.

Refer customers seeking information about settlement benefits to www.enginemisfiresettlement.com, or instruct them to call 888-888-3082.

 

DIAGNOSIS

  1. Connect the HDS and check for the following DTCs: P0301 No. 1 Cylinder Misfire Detected, P0302 No. 2 Cylinder Misfire Detected, P0303 No. 3 Cylinder Misfire Detected, P0304 No. 4 Cylinder Misfire Detected.

Are any of these DTCs stored?

YES – Go to step 2.

NO – Stop.  This bulletin does not apply.  Continue with normal troubleshooting.

  1. Remove and check the spark plug(s) on the affected cylinders (example: if P0301 is stored, check the spark plug on cylinder No. 1).

Are the spark plug(s) fouled?

YES – Go to step 3.

NO – Stop. This bulletin does not apply. Continue with normal troubleshooting.

spark plug

 

  1. Check the PCM software version P/N located above the PGM FI Data List. All 2012–13 vehicles are up to date, go directly to step 4.

PCM software version P/N

Year/Model Program ID (or later) Program P/N (or later)
2009–10 Pilot (2WD) N0A570                37805-RN0-A57
2009–10 Pilot (4WD) N0A770                37805-RN0-A77
2011 Pilot (2WD) N0A630                37805-RN0-A63
2011 Pilot (4WD) N0A830                37805-RN0-A83
2012–13 Pilot (ALL) Software Updated from Factory

 

Is the PCM Program ID and/or Program P/N the same or newer than what is listed above, 2009–11 model years only?

NO – The PCM software needs to be updated.  Go to REPAIR PROCEDURE A.

YES – The correct software is installed.  The piston rings on select cylinders need to be replaced.  Go to step 4.

IMPORTANT NOTICE: The PCM software must first be updated with the correct version, replace spark plugs and the vehicle returned to the customer.  Piston cleaning and piston ring replacement, as described below, should only be done after the customer has returned with a second failure or if the vehicle’s software is the correct version.  Failure to follow this process correctly may result in a full debit of the warranty claim to your dealer.

  1. Note which DTCs are stored in the vehicle.

Does the vehicle have DTC P0304 stored? (Any combination of DTCs P0301, P0302, P0303, P0304 may also be stored.)

YESGo to REPAIR PROCEDURE B for the cylinders listed, Cylinders 1–4: Clean the pistons, replace the piston rings, and replace the spark plugs.

NO – Go to REPAIR PROCEDURE B for the cylinders listed below:

 

WARRANTY CLAIM INFORMATION

2009–11 Models: Confirm PCM Software is or has been updated with the correct version, spark plugs 1–4 have been replaced and the vehicle returned to the customer (Procedure A)Piston cleaning and piston ring replacement along with the spark plugs, should be only be done after the customer has returned with a second failure or if the vehicles software is the correct version (Procedure B).  Failure to follow this process correctly may result in a full debit of the warranty claim to your dealer.

2012–13 Models: Are equipped with updated software from the factory, no software updated is needed.  Piston cleaning and piston ring replacement along with the spark plugs should be done (Procedure B).

FLAT RATE NOTE: The procedure in this bulletin is different than the service manual.  This procedure does not require the complete removal of the power steering pump, catalytic converter(s), engine and transmission, or the crankshaft.  As a result, the operation number is unique and the FRT is reduced (Procedure B).

 

2009–11 Pilot

OP# Description Flat Rate Time Template ID Failed Part Number
1171G9 2009–11 Pilot: Procedure A

Update the PCM and replace spark plugs 1–4 (includes diagnosis).

0.5 hr 13-082A 13011–R70–A02
1171H0 2009–11 Pilot: Procedure B

Replace piston rings 1–3 and replace spark plugs 1–4 (includes diagnosis).

9.1 hrs 13011–R70–A02
1171H0B 2009–11 Pilot: Add if replacing piston rings on cylinder 4. 1.9 hrs 13011–R70–A02

 

2012–13 Pilot

OP# Description Flat Rate Time Failed Part Number
1171H0 2012–13 Pilot:

Replace piston rings 1–3 and replace spark plugs 1–4 (includes diagnosis).

9.1 hrs 13011–5G0–A01
1171H0B 2012–13 Pilot: Add if replacing piston rings on cylinder 4. 1.9 hrs 13011–5G0–A01

 

Defect Code: 5V500
Symptom Code: JC000
Skill Level: Repair Technician

 

PARTS INFORMATION

NOTE: Do the DIAGNOSIS first to determine which cylinders you will need to repair.

 

REPAIR PROCEDURE A – SOFTWARE UPDATE AND CYLINDERS 1–4 SPARK PLUG REPLACEMENT

Required Parts

Part Name Part Number Quantity
 Spark Plugs (2009–11 All) 12290-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 4
 Spark plugs (2012–13 All) 12290-R71-L01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 4

 

REPAIR PROCEDURE B – PISTON CLEANING AND RING REPLACEMENT Required Parts

Part Name            Part Number Cyl 1-3 Cyl 1-4
Cyl. Gasket (Fr Cylinder Head) 12251-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1
Cyl. Gasket (Rr Cylinder Head) 12261-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
Drain Washer 14 mm 94109-14000 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
EGR Pipe Gasket A 18716-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
EGR Pipe Gasket B 18719-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
Ex. Chamber Gasket 18115-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 2
Ex. Pipe Gasket 18212-SA7-003 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 2 2
Head Gasket Fr (Valve Cover) 12030-R70-A00  1
Head Gasket Rr. (Valve Cover) 12050-R70-A00 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
In. Manifold Gasket (Intake Top Cover) 17146-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
In. Manifold Gasket (2009–10 2WD) 17105-RCA-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
In. Manifold Gasket (2009–13 4WD & 2011–13 2WD) 17105-RCJ-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
Oil Filter 15400-PLM-A02 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
O-ring (7.47 mm x 3.6 mm) 91301-PLC-000 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 2 2
O-ring (31.2 mm x 4.1 mm) 91314-PH7-003 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 2 2
Piston Ring Set 13011-5G0-A02 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 3  4
Pre-chamber Gasket 18393-SDB-A00 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1  1
Self-locking Nut (8 mm) 90212-RCA-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 4 8
Self-locking Nut (10 mm) 90212–SA5-003  9 9
Spark Plug (2009–11 All) 12290-R70-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 4 4
Spark plug (2012–13 All) 12290-R71-L01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 4 4
Strainer O-ring 15221-RYE-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
Timing Belt Bolt 14551-RCA-A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
Water Gasket Fr. 19411-P8A-A03 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1
Water Gasket Rr. 19412–P8A-A02 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 1

 

Replaced Parts as Needed for Repair Procedure B

Part Name Part Number Cyl 1-3 Cyl 1-4
Connecting Rod Bolt (May require Up to 6 bolts per cylinder head) 13204–P8A–A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 6 8
Washer-Bolt (12 x 163) (May require up to 8 bolts per cylinder head) 90005–PAA–A01 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 8 16

 

REQUIRED MATERIALS – REPAIR PROCEDURE B

Material Description Part Number Quantity
Honda Long-Life Antifreeze/Coolant Type 2 OL999–9011 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 3 gallons
Genuine Honda Motor Oil 0W–20 08798–9036 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 6 quarts
Genuine Honda Motor Oil 5W–20 (if requested) (2009-11) 08798–9032  6 quarts
Hondabond HT (1 Tube Repairs 5 Vehicles) 08718–0004 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light 1 tube
Genuine Honda Throttle Plate Cleaner 08700–9204 MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light
Nylon Parts Cleaning Brush (commercially available)
5/16 ID Flexible Hose (commercially available)

 

TOOL INFORMATION – REPAIR PROCEDURE B

Tool Description Tool Number Quantity
Piston Ring Groove Cleaner 07AAZ–TA5A100 1

 

REPAIR PROCEDURE A – SOFTWARE UDPATE AND CYLINDERS 1–4 SPARK PLUG REPLACEMENT

  1. For 2009–11 models only, update the PCM software. Refer to Service Bulletin 01-023, Updating Control Units/Modules.
  1. Replace spark plugs on cylinders 1–4, then return the vehicle to the customer.

 

REPAIR PROCEDURE B – PISTON CLEANING AND RING REPLACEMENT

2009–11 Models: Confirm PCM software is or has been updated with the correct version, spark plugs 1–4 have been replaced and the vehicle returned to the customer (Procedure A)Piston cleaning and piston ring replacement along with the spark plugs should only be done after customer has returned with a second failure or if the vehicles software is the correct version (Procedure B).  Failure to follow this process correctly may result in a full debit of the warranty claim to your dealer.

2012–13 Models: Are equipped with updated software from the factory, no software update is needed.  Piston cleaning and piston ring replacement along with the spark plugs should only be done after the diagnosis of the spark plugs has concluded that (Procedure B) is required.

The following service manual procedures have been used in full or in part within this service bulletin. For more detail on these procedures, and torque specifications for some components, refer to the appropriate electronic service manual.

 

Piston Removal Procedure

  • Use fender covers to avoid damaging painted surfaces.
  • To avoid damaging any wires and terminals, unplug the circuit connectors carefully while holding the connector portion.
  • Mark all the circuits and hoses to avoid misconnection. Make sure they do not contact other circuit wiring, hoses, or interfere with other parts.
  1. Relieve the fuel pressure.
  2. Remove both front wheels so you can fully lower the vehicle.
  3. Remove the intake duct.

intake duct

 

  1. Do the battery removal procedure.
  2. Disconnect the fuel feed hose line at the bulkhead.

fuel feed hose

 

  1. Remove the engine cover.

engine cover

 

  1. Remove the radiator cap.
  2. Raise the vehicle.
  3. Remove the front splash shield.

front splash shield

 

  1. Drain the engine oil.
  2. Loosen the drain plug on the radiator, and drain the coolant.

drain plug

 

  1. Install a 5/16th inner diameter rubber hose on the drain bolt at the rear of the engine block, loosen the drain bolt, and drain all remaining coolant. Then disconnect the oil pressure switch connector.

oil pressure switch

 

  1. Remove the subframe stiffener.

subframe stiffener

 

  1. Remove exhaust pipe A.

exhaust pipe A

 

  1. Depending on the diagnosis, remove the appropriate WU-TWC support bracket bolts.
  2. Remove the EGR lower pipe nuts.
  3. Remove the crankshaft pulley bolt but not the pulley.

NOTE: Make sure to apply new oil to the bolt flange and threads before reinstallation.

crankshaft pulley bolt

 

  1. Lower the vehicle.
  2. Disconnect the MAP sensor connector and the breather pipe, then remove the intake air duct.

intake air duct

 

  1. Disconnect the throttle body connector, the EVAP canister purge valve connector, the EVAP hose, the brake booster vacuum hose, and the vacuum hose.
  2. Disconnect and plug the water bypass hoses.

water bypass hoses

 

  1. Remove the drive belt.
  2. Remove the drive belt auto-tensioner.
  3. Remove the power steering pump bolts, the power steering bracket then secure the power steering pump out of the way.

NOTE: Do not remove any of the hoses.

power steering pump

 

  1. Remove the engine harness holder bolt on the side engine mount.
  2. Set the engine to TDC cylinder one.
  3. Remove the crankshaft pulley.
  4. Remove the timing belt.
  5. Remove the timing belt idler pulley.
  6. Remove the engine intake upper cover bolts and nuts. Then remove the cover and the PCV hose.

intake upper cover

 

  1. Remove the intake manifold bolts and nuts in three steps, then remove the intake manifold.

intake upper cover

 

  1. Remove the PCM cover and connectors. Disconnect the battery cables from the underhood fuse box.

PCM cover

 

  1. Remove the appropriate Ignition coils based on the diagnosis.

NOTE: Depending on the diagnosis, you will either have to remove the rear bank ignition coils or both ignition coil banks.

ignition coils

 

  1. Depending on the diagnosis, remove some or all of the following components:
  1. Remove the quick-connect fitting cover, then disconnect the fuel feed hose.

fuel feed hose

 

  1. Remove the EVAP canister purge joint with the bracket.

EVAP canister purge joint

 

  1. Remove the fuel rail connecting joint hose.

fuel rail connecting joint

 

  1. Remove the EGR pipe mounting bolts, then remove the EGR pipe.

EGR pipe

 

  1. Separate the water passage from the heads.

EGR

 

  1. Remove the appropriate WU-TWC depending on diagnosis.

NOTE: Set the WU-TWC aside and cover the opening with shop towels to prevent coolant from entering.

WU-TWC

 

  1. Remove the appropriate head with the injector base attached.

NOTE: Depending on diagnosis, you will remove the rear bank head or both heads.

Cylinder Heads

 

  1. Measure the head bolts to determine if they need replacement. If either diameter is less than 3 mm (0.445 in), replace the cylinder head bolt.

Cylinder Head Bolts

 

NOTE: Torque the bolts using the following steps for reinstallation.

  • First step: torque the cylinder bolts in sequence to 29 N•m (22 lb-ft).
  • Second step: tighten in sequence an additional 90 degrees.
  • Third step: tighten in sequence an additional 90 degrees.
  • If the bolts are new, tighten an additional 90 degrees.

Cylinder Head Bolts

 

  1. Raise the vehicle.
  2. Remove the CKP sensor cover and bolts, then disconnect the CKP sensor connector.

CKP sensor

 

  1. Remove the torque converter case cover and the four bolts securing the oil pan to the transmission.

torque converter case cover

 

  1. Remove all bolts securing the oil pan.

oil pan

 

  1. Using a flat blade screwdriver, separate the oil pan from the engine block in the areas shown.

oil pan

 

  1. Remove the oil strainer and baffle plate.

baffle plate

 

  1. Lower the vehicle to a comfortable working height, and place a clean shop towel around the cylinder wall to prevent debris from entering the coolant passage.
  2. Remove the appropriate piston depending on diagnosis, then go to PISTON CLEANING PROCEDURE.

NOTE: When removing the piston rod caps, be sure and keep all caps and bolts with their corresponding pistons for reassembly purpose.

 

Piston Cleaning and Ring Replacement Procedure

  1. Remove the piston rings from the piston using a ring expander. Be careful not to damage the piston.

ring expander

 

  1. Spray the piston head and piston ring grooves thoroughly with Honda throttle plate cleaner.
  1. While holding the piston upright in your left hand, take the piston ring groove cleaner tool in your right hand and line up the cleaner tool guides with the second (middle) piston ring groove.

piston ring groove cleaner tool

 

  1. Press the handle on the piston ring groove cleaner tool and slide the cleaning bit onto the appropriate piston ring grooves.

piston ring groove cleaner tool

 

  1. Once the cleaning bit is in the appropriate ring grooves of the piston, make sure the tool handle clicks into place.

NOTE: There is only one notch on the tool for the handle to engage.

piston ring groove cleaner tool

 

  1. Hold the piston steady and rotate the tool counter-clockwise five to six times to remove any carbon deposits in the piston ring grooves. Do not rotate the tool clockwise.

NOTE: You can watch this procedure in the Tech2Tech segment “How to Clean Piston Ring Grooves”.

YouTube video

piston ring groove cleaner tool

 

  1. Remove the piston groove cleaning tool and clean off the carbon from the tool bit.
  2. Finish cleaning the piston with throttle plate cleaner and the nylon brush. Do not use a steel wire brush.

nylon brush

 

NOTE:  Below are some examples of before and after pictures. Depending on mileage and running conditions, the pistons will achieve different levels of cleanliness.

pistons

 

  1. Install the piston rings as shown.

NOTE: The first (top) ring has a 1D manufacturing mark and the second (middle) ring has an SPR manufacturing mark.

The manufacturing marks must be facing upward.

piston rings

 

  1. Position the ring end gaps as shown.

NOTE: If the ring gaps are not positioned correctly, excessive blowby may occur.

piston rings

 

  1. Apply new engine oil to the piston, the inside of the piston ring compressor, and the cylinder bore.
  1. Install the piston/connecting rod assembly into the cylinder bore with the arrow on top of the piston facing the timing belt side of the engine.

NOTE: Be careful not to damage the cylinder wall when installing the piston.

piston

 

  1. Measure the diameter of the connecting rod bolts to determine if they need replacement. Calculate the difference in diameter between point A and point B. It should not be more than 0–0.1 mm (0–0.004 in).

connecting rod bolts

 

  1. Apply new oil to the connecting rod bolt threads and flanges. Torque the bolts to 20 N•m (14 lb-ft) then tighten the connecting rod bolts an additional 90 degrees.

Rod Caps

 

  1. Reinstall the remaining components in the reverse order of removal.
  2. Replace spark plugs 1–4.
  3. Replace the oil filter and refill all fluids.
  4. Do the idle learn procedure.

 

END.

 

 

A13-082

 


 

J2534 Software

American Honda Motor Co., Inc. offers SAE J2534 compliant reprogramming software for Honda and Acura vehicles FREE of charge. This J2534 software, when used with a properly built J2534 pass-thru device MIL Comes On With DTCs P0301 thru P0304 - 2009-2013 Honda Pilot » small light, will automatically check for the latest vehicle calibration information.

 

Important Notice

Do NOT program a control module unless you are directed by a service procedure or an applicable Honda/Acura Service Bulletin. Control Module updating should only be undertaken by a skilled professional using proper equipment and procedures, or module damage can occur. The process of updating to the latest software not associated with a specific symptom may not resolve other specific customer concerns. Unauthorized or self-directed programming may cause unintended and irreversible effects and lead to vehicle harm and/or customer dissatisfaction.

American Honda urges end users to always use the LATEST production release of the J2534 Honda Reprogramming software. Using the latest version of the software is the best way to ensure successful reprogramming of applicable control modules.

It is possible to damage the vehicle’s electronic control modules during reprogramming. Ensure the following conditions are met BEFORE programming a control module:

  • The vehicle battery must be fully charged before programming the control module. Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage will interrupt programming.
  • Turn OFF or disable any system that may put a load on the vehicle battery.
  • Make certain all tool connections are secure. Do NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur.

THE ON-SCREEN REPROGRAMMING PROCEDURE MUST BE FOLLOWED EXACTLY AS OUTLINED BY THE SOFTWARE. FAILURE TO FOLLOW THESE INSTRUCTIONS WILL CAUSE THE REPROGRAMMING TO FAIL.

Some modules may require additional programming/setup events performed before or after programming. Please refer to the appropriate Service Bulletins for details. (e.g. IMA Battery Module)

The information in Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. The procedures should not be performed by “do-it-yourselfers”. American Honda reserves the right to supersede this information with updates. The most recent information is available through American Honda’s on-line technical resources.

 

Warning: Certain control module systems require special procedures and or hardware to be properly reprogrammed. Before proceeding ahead, check the vehicle list below.

Honda J2534 Pass-Thru User Guide

Honda J2534 Pass-Thru Software Download

 

techinfo.honda.com

 

 

Leave a Comment

Share to...