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Wiring diagrams Section: Testing & Diagnostics

Advanced Diagnostics

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Intake Air System: Other Honda Odyssey IV

Testing & Diagnostics 11 illustrations ~724 words

Carbon Accumulation Check

Note. If the malfunction indicator lamp (MIL) has been reported on, check for diagnostic trouble codes (DTCs).

Scheme 17

Scheme 17: Carbon Accumulation Check

Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
Turn the ignition switch to ON (II).
Make sure the HDS communicates with the PCM. If it doesn't, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING»(ref-355276-S19683854952010012200000) ).
Start the engine. Hold the engine speed at 3,000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
Check the REL TP SENSOR in the DATA LIST with the HDS. The reading should be below 2.54deg. If it is not, clean the throttle body (see «THROTTLE BODY CLEANING»(ref-294690-S01140102192008081300000) ).

Throttle Position Learning Check

Note. If the malfunction indicator lamp (MIL) has been reported on, check for diagnostic trouble codes (DTCs).

Scheme 18

Scheme 18: Throttle Position Learning Check

Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
Turn the ignition switch to ON (II).
Make sure the HDS communicates with the PCM. If it doesn't, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING»(ref-355276-S19683854952010012200000) ).
Select the INSPECTION MENU with the HDS.
Do the TP LEARNING CHECK in the ETCS TEST. If needed, clean the throttle body (see «THROTTLE BODY CLEANING»(ref-294690-S01140102192008081300000) ).

Throttle Body Cleaning

CAUTION

Do not insert your fingers into the installed throttle body when you turn the ignition switch to ON (II) or while the ignition switch is ON (II). If you do, you will seriously injure your fingers if the throttle valve is activated.

Scheme 19

Check for damage to the air cleaner. If the air cleaner is damaged, replace it (see «AIR CLEANER ELEMENT INSPECTION/REPLACEMENT»(ref-294690-S32981114532008081300000) ).
Remove the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-294690-S42847256082008081300000) ).
Clean off the carbon from the throttle valve and inside the throttle body with a paper towel soaked in throttle plate and induction cleaner. NOTE: Remove the throttle body to clean it. Be careful not to pinch your fingers. To avoid removing the molybdenum coating, do not clean the bearing area of the throttle shaft (A). Do not spray throttle plate and induction cleaner directly on the throttle body. Use Honda genuine throttle plate and induction cleaner.
Install the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-294690-S42847256082008081300000) ).
Reset the PCM with the HDS.
Turn the ignition switch to ON (II), and wait 2 seconds.
Do the PCM idle learn procedure (see «PCM IDLE LEARN PROCEDURE»(ref-294703-S06414002682008081300000) ).

Scheme 20

Scheme 20: Air Cleaner Removal/Installation

Disconnect the MAF sensor or MAF/IAT sensor 5P connector (A).
Remove the bolts (B) and harness clamps (C).
Remove the air cleaner housing (D).
Install the parts in the reverse order of removal.

Scheme 21

Scheme 21: Air Cleaner Element Inspection/Replacement

Open the air cleaner housing cover (A).
Remove the air cleaner element (B) from the air cleaner housing (C).
Check the air cleaner element for damage or clogging. If it is damaged or clogged, replace it. NOTE: Do not use compressed air to clean the air cleaner element.
Clean and remove any debris from inside the air cleaner housing.
Install the parts in the reverse order of removal. If you did not replace the air cleaner element, this procedure is complete. If the maintenance minder required air cleaner element replacement, reset the maintenance minder (see «MAINTENANCE MINDER»(ref-294680-S05279603422008081300000) ). If you replace the air cleaner element, reset the PCM with the HDS, and do the PCM idle learn procedure (see «PCM IDLE LEARN PROCEDURE»(ref-294703-S06414002682008081300000) ).

Scheme 22

Scheme 22: '07 model

Scheme 23

Remove the front bumper (see «FRONT BUMPER REMOVAL/INSTALLATION»(ref-294713-S27506452772008081300000) ).
Remove the bolt (A), the clips (B), and the cover (C).
Remove the intake air duct (D).
Remove the intake air resonator (A).
Install the parts in the reverse order of removal.

Scheme 24

Scheme 24: '08-10 models

Scheme 25

Scheme 26

Do the battery removal procedure (see «BATTERY REMOVAL AND INSTALLATION»(ref-294696-S12428834172009102800000) ).
Remove the air cleaner (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-294690-S36483830972008081300000) ).
Remove the cover (A), and disconnect the intake air duct (B) from the intake air resonator (C).
Remove the battery base (A) and the intake air duct (B).
Remove the front bumper (see «FRONT BUMPER REMOVAL/INSTALLATION»(ref-294713-S27506452772008081300000) ).
Remove the left front inner fender (see «'08-10 Models»(ref-294736-S08501407972008081300000) ).
Remove the intake air resonator (A).
Install the parts in the reverse order of removal.
Do the battery installation procedure (see «BATTERY REMOVAL AND INSTALLATION»(ref-294696-S12428834172009102800000) ).

Scheme 27

Scheme 27: J35A7 engine ('07 model)

Remove the engine cover (see step 9 on «ENGINE REMOVAL»(ref-294701-S37258878062008081300000) ).
Disconnect the IMT actuator 5P connector (A).
Remove the bolts and the IMT actuator (B).
Install the parts in the reverse order of removal with a new O-ring (C).